Morph Final Anki 2/2 Flashcards by Anita Maxwynn

Which of the following premolars most typically have three rather than two cusps?

A. maxillary first premolar
B. maxillary second premolar
C. mandibular first premolar
D. mandibular second premolar

D. mandibular second premolar

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After eruption, the maxillary first molar root development is completed by

A. 9-10 years old
B. 2-3 years old
C. 15 years old
D. 6-7 years old

A. 9-10 years old

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The fifth or accessory cusp of the maxillary first molar is called

A. distal cusp
B. mesial-lingual cusp
C. the cusp of Carabelli
D. the cusp of Carvellini

C. the cusp of Carabelli

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Which cusps of the maxillary molars become progressively smaller starting with the first molar?

A. distal lingual cusp
B. distobuccal cusp
C. mesiolingual cusp
D. mesiobuccal cusp

A. distal lingual cusp

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The mesiolingual cusp of a maxillary first molar is separated from the distolingual cusp by

A. the distal developmental groove
B. the distolingual developmental groove
C. the central developmental groove
D. the lingual developmental groove

D. the lingual developmental groove

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Which root of the maxillary first molar has two canals in a large percentage of patients?

A. lingual root
B. mesiobuccal root
D. distobuccal root
D. distal root

B. mesiobuccal root

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The morphology of the mandibular lateral incisor when compared to the mandibular central incisor is

A. identical but larger
B. almost identical but smaller
C. almost identical but larger
D. the same

C. almost identical but larger

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The facial surface of the maxillary canine is bounded by ___ borders.

A. 3
B. 4
C. 5
D. 6

C. 5

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Which of the following teeth usually have two roots which may be fused?

A. maxillary first premolar
B. mandibular first premolar
C. maxillary second premolar
D. mandibular second premolar

A. maxillary first premolar

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The permanent mandibular second molar differs from the permanent mandibular first molar in number of

A. cusps
B. roots
C. lingual grooves
D. marginal ridges

A. cusps

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There are how many developmental lobes of a permanent mandibular molar?

A. 4: 2 buccal, 2 lingual
B. 5: 3 buccal, 2 lingual
C. 3: 2 buccal, 1 lingual
D. 5 in mandibular first molar, 4 in mandibular second molar

D. 5 in mandibular first molar, 4 in mandibular second molar

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The premolar with the occlusal groove pattern that may simulate the letter “Y” is

A. maxillary first
B. mandibular first
C. maxillary second
D. mandibular second

D. mandibular second

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The anterior tooth most likely to have a bifurcated root is the permanent

A. maxillary canine
B. mandibular canine
C. maxillary central incisor
D. mandibular central incisor

B. mandibular canine

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The mandibular tooth that may have four root canals is

A. mandibular second premolar
B. mandibular first molar
C. mandibular second molar
D. mandibular third molar

B. mandibular first molar

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The mandibular molar root which usually has one canal, but may have two, is

A. the mesial root of a mandibular first molar
B. the distal root of a mandibular first molar
C. the mesial root of a mandibular second molar
D. the distal root of a mandibular second molar

B. the distal root of a mandibular first molar

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When in its proper position relative to the plane of occlusion, the crown of a mandibular second molar inclines

A. distally and facially
B. mesially and facially
C. mesially and lingually
D. distally and lingually

C. mesially and lingually

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Which of the following is correct?

A. In all anterior teeth, the F embrasure space is larger than the L e.s.
B. In all anterior teeth, the F embrasure space is the same as the L e.s.
C. In all anterior teeth, the F embrasure space is smaller than the L e.s.

B. In all anterior teeth, the F embrasure space is the same as the L e.s.

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Considering the nature and position of Mandibular incisor interproximal contacts, which of the following statements are true?

A. the gingival embrasure is larger than the incisal embrasure
B. the gingival embrasure is the same size as the incisal embrasure
C. the gingival embrasure is smaller than the incical embrasure

A. the gingival embrasure is larger than the incisal embrasure

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Which of the following pre molars may* have a L developmental groove?

A. Maxillary 1st (has Mesial Marginal Ridge Dev. Groove)
B. Maxillary 2nd (has a short central Dev. Groove on occlusal surface)
C. Mandibular 1st (has Mesiolingual Dev. Groove)
D. Mandibular 2nd

*dependent on the number of

D. Mandibular 2nd

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Which of the following statements is not correct?

A. The maxillary 1st Premolar has a ML developmental groove
B. Mandibular 1st Premolar has a ML developmental groove
C. Mandibular 2nd Premolar commonly has a lingual groove
D. The maxillary 2nd Premolar has a short central developmental groove

A. The maxillary 1st Premolar has a ML developmental groove

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Which of the following is not correct?

A. Mandibular 1st Premolar most commonly has three pulp horns.
B. Maxillary 1st Premolar usually develops from 4 lobes
C. The Premolar most likely to have a central pit is the Mandibular 2nd.
D. Maxillary 1st Premolar has a pronounce mesial concavity extending from the crown onto the root
E. The premolar most likely to have 3 roots is the maxillary 1st

A. Mandibular 1st Premolar most commonly has three pulp horns.

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When viewed from the Mesial, the geometric form of the crown of the maxillary 1st premolar is classically described as:

A. rectangle
B. rhomboid
C. trapezoid
D. square
E. ovoid

C. trapezoid

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In which of the following cusps is the Mesial slope (AKA: mesial cusp arm/ mesial cusp ridge) longer than the Distal slope?

A. Buccal cusp of the permanent maxillary 1st Molar
B. Cusp of the permanent maxillary canine
C. Buccal cusp of the permanent maxillary 1st Premolar

C. Buccal cusp of the permanent maxillary 1st Premolar

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Which statement is false? In comparing the manibular canine with the maxillary canine, the maxillary canine:

A. Has shorter crown.
B. More pronounced cingulum
C. Has a more pronounce developmental depression on the Mesial surface of the root
D. Has a cusp tip more nearly centered over the root when viewed from the Facial.

C. Has a more pronounce developmental depression on the Mesial surface of the root

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Which of the following are correct? A. A line angle is where three or more surfaces of a tooth meet B. The geometric form of the permanent mandibular canine when viewed Facially is rhomboidal. C. When viewed from the mesial, the geometric form of the permanent mandibular 1st premolar is best described as rhomboidal in nature.

C. When viewed from the mesial, the geometric form of the permanent mandibular 1st premolar is best described as rhomboidal in nature.

If a maxillary 1st molar has a fourth pulp canal, it is located in which of the following roots: A. Mesiofacial (or MB) B. Distofacial (or DB) C. Palatal (or lingual)

A. Mesiofacial (or MB)

Which of the following represents the general crown form of the canine from the Facial? A. Hexagon B. Triangle C. Rhomboidal D. Trapezoidal E. Diamond

D. Trapezoidal

On the crown of the maxillary canine, the height of contour is normally located in the cervical third of which of the following surfaces? A. Labial B. Lingual C. Both labial and lingual D. Neither labial nor lingual

C. Both labial and lingual

Which of the following surfaces of a tooth is always next to an adjacent tooth? A. Distal B. Facial C. Palatal D. Occlusal E. Proximal

E. Proximal

Which of the following teeth exhibits the most deviation in crown? A. maxillary central incisor B. maxillary lateral incisor C. mandibular lateral incisor D. maxillary canine E. mandibular canine

B. maxillary lateral incisor

Rank the roots of the maxillary 1st molar in order from largest to smallest. A. MB > DB > Palatal B. Palatal > MB > DB C. DB > Palatal > MB

B. Palatal > MB > DB

Between which of the following teeth in the primary dentition is mandibular primate space usually found? A. Between Centrals B. Canine & 1st Molar C. Between 1st and 2nd molars D. Between lateral incisor and canine

B. Canine & 1st Molar

Which is most likely has bifurcated root? A. Mandibular canine B. Maxillary canine C. Mandibular lateral incisors

A. Mandibular canine

On which of the following surfaces of secondary dentition do you see pit and fissure caries? A. Facial of Maxillary 1st Molar B. Lingual of maxillary 1st Molar C. Facial of Mandibular 1st Premolar D. Lingual of mandibular 1st premolar E. Proximal surfaces of mandibular incisors

B. Lingual of maxillary 1 Molar

Which of the following characteristics is common to maxillary 1st and 2nd premolars? A. The lingual cusp tip is offset to the mesial. B. Facial and lingual cusps are equal in size and prominence C. Mesial root concavity extends into cervical 1/3 of crown

A. The lingual cusp tip is offset to the mesial.

In a molar, where do root canals usually join the pulp chamber? A. At the level of furcation B. At varying levels, depending on age C. With in middle 1/3 of crown D. Within cervical 1/3 of the crown E. Apical to the CEJ

E. Apical to the CEJ

Which primary molar has a transverse ridge, an oblique ridge, and distiolingual groove? A. Maxillary first B. Maxillary second C. Mandibular first D. Mandibular second

B. Maxillary second

Which tooth is represented by the drawing to the right: A. Mesial view of the permanent mandibular 1st Molar B. Mesial view of the permanent mandibular 2nd Molar C. Mesial view of the permanent mandibular 1st Premolar D. Distal view of the permanent mandibular 1st Molar E. Distal view of the permanent mandibular 2nd Molar

D. Distal view of the permanent mandibular 1st Molar

In which premolar is the mesial marginal ridge at a lower level than the distal marginal ridge?

Mandibular 1st premolar

Because of the presence of a fissured groove, cavity preparation most frequently need to be extended from the occlusal surface to the: A. Facial surface of maxillary molars B. Lingual surface of maxillary molars C. Lingual surface of the mandibular molars D. Lingual surface of mandibular first premolars

B. Lingual surface of maxillary molars

When viewed from the mesial aspect, the position of the buccal tip of the mandibular first premolar is: A. Centered over the midline of the tooth B. Buccal to the midline of the tooth C. Lingual to the midline of the tooth D. Buccal to the buccal outline of the tooth

A. Centered over the midline of the tooth

Which of the following teeth has a root trunk that is 1/2 to 2/3s the length of the root? A. Maxillary first premolar B. Mandibular first premolar C. Mandibular first molar D. Maxillary first molar E. Maxillary second premolar

A. Maxillary first premolar

Compared with its permanent successors, the primary maxillary central incisors are distinguished by: A. more rounded incisal edges B. more pronounced marginal ridges C. a wider mesial/distal diameter than cervicoincisal length

C. a wider mesial/distal diameter than cervicoincisal length

Which of the following premolars most frequently has one pulp horn:

mandibular 1st premolar

Which furcation in the maxillary first molar is farthest from the CEJ?

farthest: distal closest: mesial

Considering the nature and position of the mand incisors interproximal contacts, which statement is true? A. Gingival embrasure is larger than incisal embrasure B. Facial and lingual embrasures are the same on anterior teeth. C. Both A and B

C. Both A and B

Which premolar has a lingual developmental groove?

Mandibular 2nd premolar (for the Y type cusps)

When viewed from the mesial the geometric form of the crown of the max 1st premolar is classically described as

1st + 2nd Max: Trapezoidal from proximal 1st + 2nd Mand: Rhomboidal

Compared to mand canines, the max canines A. shorter crown height B. more pronounced cingulum C. cusp tip more centered than mandibular D. All of the above

D. All of the above

If a max 1st molar has a 4th pulp canal it is located in the

mesiofacial root

On maxillary canine crown, height of contour is in the cervical 1/3 on which of the following surfaces: A. labial B. lingual C. both D. neither

C. both

Rank the roots of the maxillary 1st molar in order from largest to smallest

palatal > mesiobuccal > distobuccal

Which tooth is most likely to have a bifurcated root?

mandibular canine

Which tooth is least likely to have a bifurcated root?

maxillary canine

Compared with its permanent successors, the primary maxillary central incisors A. more rounded incisal edges B. more pronounced marginal ridges C. a wider mesial/distal diameter that cervicoincisal length

C. a wider mesial/distal diameter that cervicoincisal length *In this case, both A and C were correct but C was "the most correct answer*

Which premolar has a crescent shaped developmental groove?

mandibular 2nd

Which of the following are correct? A. in all anterior teeth the facial embrasure is larger that the lingual embrasure B. in all anterior teeth facial embrasure is the same size as the lingual embrasure C. in all anterior teeth facial embrasure is smaller than the lingual embrasure

B. in all anterior teeth facial embrasure is the same size as the lingual embrasure

Which of the following premolars may have a lingual developmental groove? A. max 1st B. max 2nd C. mand 1st D. mand 2nd

D. mand 2nd

Which is not correct? A. mand 1st premolar most commonly has 3 pulp horns B. max 1st premolar develops from 4 lobes C. the premolar most likely to have a central pit is the mand 2nd D. max 1st premolar ahs a pronounced mesial concavity E. premolar most likely to have 3 roots is the maxillary 1st

A. mand 1st premolar most commonly has 3 pulp horns

In which tooth is the mesial cusp arm longer than the distal?

maxillary 1st premolar and deciduous maxillary canine

Which is correct? A. a line angle is where three or more surfaces meet B. the geometric form of the perm mand canine when viewed from the facial is triangular C. point angles are present on posterior teeth but not anterior D. permanant mand 1st premolar is rhomboidal

D. permanant mand 1st premolar is rhomboidal

Which represents the general crown form of the canine as viewed from the Occlusal? A. hexagon B. triangular C. rhomboidal D. ovoid E. diamond shaped

D. ovoid

Which exhibits the most diversity in crown morphology?

maxillary lateral incisor

Between which is the primate space? A. central incisors B. central and lateral incisors C. lateral incisors and canine (maxillary) D. canine and 1st molar (mandibular) E. 1st and 2nd molar

C. lateral incisors and canine (maxillary) D. canine and 1st molar (mandibular)

Which of the following surfaces of perminant teeth are pit and fissure carries most likely to occur? A. F of max 1st molar B. L of max 1st molar C. F of mand 1st premolar D. L of mand 1st premolar E. Proximal of mand I

B. L of max 1st molar – because of the lingual groove, at its bottom Also -- buccal of mandibular molars -- buccal grooves are susceptible to pit 'n fissure caries

Which premolar has only 1 pulp horn?

mandibular 1st

How many lobes does the max 2nd molar develop from?

Which premolar is MMR lower than DMR? A. mand 1st B. mand 2nd C. max 1st D. max 2nd

A. mand 1st

Which arch are the 2nd premolars larger than the 1st? A. maxillary B. mandibular

B. mandibular

Which tooth has a lower mesial marginal ridge?

Mandibular 1st premolar

True or False: Root depressions are larger on distal than mesial generally.

True

In general, which teeth are the most commonly congenitally missing?

3rd molars

Which are the most commonly congenitally missing ANTERIOR teeth?

maxillary lateral incisors

What are the most likely anterior teeth to have 2 pulp canals?

mandibular canine

What are the least ikely anterior teeth to have 2 pulp canals?

maxillary canine

What is the largest cusp of the maxillary 1st molar?

ML (with its cusp of Carabelli)

What is the largest cusp of the mandibular 1st molar?

In a longitudinal section on a premolar tooth, the enamel is thickest in the A. cervical third B. middle third C. occlusal third D. junction of the middle and occlusal third

C. occlusal third

The mesiodistal (M-D) measurement of the crown is greater than the faciolingual (F-L) measurement on which of the following teeth A. Maxillary molars B. Maxillary premolars C. Mandibular incisors D. Mandibular molars

D. Mandibular molars

From a facial view, the mesial and distal contact area of the mandibular central Incisors are located in A. both are located in the incisal 1/3 B. both are located in the middle 1/3 C. the incisal 1/3 on the mesial and the middle 1/3 on the distal D. the incisal 1/3 on the mesial and junction of the incisal and middle 1/3’s on the distal

A. both are located in the incisal 1/3

Identify the anterior tooth that most frequently exhibits a bifurcated root and Identify the two roots A. maxillary canine-mesial and distal B. maxillary canine-facial and lingual C. mandibular central incisor-facial and lingual D. mandibular canine-mesial and distal E. mandibular canine-facial and lingual

E. mandibular canine-facial and lingual

Which furcation of the maxillary first molar is closest to the cervical line? A. Mesial B. Distal C. Facial

A. Mesial

Which of the following muscles is not an elevator of the mandible? A. Medial pterygoid B. Masseter C. Lateral pterygoid D. Temporalis

C. Lateral pterygoid

Which of the following muscles is not an elevator of the mandible? A. Medial pterygoid B. Masseter C. Lateral pterygoid D. Temporalis

C. Lateral pterygoid

Which of the following cusps is not a member of the primary molar triangle or trigon found in maxillary molars? A. Mesiofacial B. Distofacial C. Mesiolingual D. Distolingual

D. Distolingual

Which of the following statements is correct in relation to the maxillary incisors? A. the lingual embrasure is larger than the facial embrasure B. the facial embrasure is larger than the lingual embrasure C. the incisal embrasure is larger than the cervical embrasure D. the lingual and facial embrasures are equal in size

D. the lingual and facial embrasures are equal in size

In cervical cross section, the root of the maxillary central incisor is described as A. triangular B. conical C. ovoid D. rhomboidal E. broader mesiodistally on the lingual than on the facial

A. triangular

Which of the following is the normal eruption age (years) of the permanent maxillary lateral incisors A. 8-9 years B. 7-8 years C. 11-13 years D. 11 months

A. 8-9 years

When viewed from the facial, the mesial contact (height of contour) of a permanent Maxillary canine is located in (at) A. the incisal 1/3 B. the junction of the middle and incisal thirds C. the middle third D. the junction of the middle and cervical thirds

B. the junction of the middle and incisal thirds

In which of the following is the mesial cusp arm longer than the distal cusp arm? A. Permanent maxillary canine B. Permanent mandibular canine C. Facial cusp of the permanent maxillary second premolar D. Facial cusp of the permanent maxillary first premolar E. Facial cusp of the permanent mandibular first premolar

D. Facial cusp of the permanent maxillary first premolar

The cusp of a canine develops from the A. Middle labial lobe B. Mesial-labial lobe C. Distal-labial lobe D. Lingual lobe

A. Middle labial lobe

In a tooth that is partially erupted, the clinical crown height is ____________ than the anatomical crown height. A. Longer B. Shorter C. Equal to

B. Shorter

The first sign of tooth development is seen in the embryo at A. 6-7 days B. 6-7 weeks C. 6-7 months D. 13-16 weeks

B. 6-7 weeks

First evidence of calcification of the permanent mandibular second molar occurs at A. 3-4 months B. 10-12 months C. 1 1/2-2 1/2 years D. 2 1/2-3 years E. Birth

D. 2 1/2-3 years

The presence of interproximal contacts is important A. To prevent food impaction B. To avoid mesial drift C. Dissipate forces throughout the arch (good stress distribution) D. All of the above

D. All of the above

Which CEJ is the most curved in the permanent dentition? A. Mesial of mandibular central incisor B. Distal of mandibular central incisor C. Mesial of maxillary central incisor D. Distal of maxillary central incisor E. Facial of maxillary central incisor

C. Mesial of maxillary central incisor

The primary maxillary first molar is exfoliated at approximately A. 10-11 years B. 14 years C. 6-7 years D. 1 1/2-2 1/2 years

A. 10-11 years

Which deciduous tooth when viewed from the facial has a mesial crown height that is twice the distal crown height? A. Deciduous mandibular first molar B. Deciduous mandibular second molar C. Deciduous maxillary second molar D. Deciduous maxillary second molar E. Deciduous maxillary canine

A. Deciduous mandibular first molar

The mesiodistal diameter of the crowns of all permanent teeth is narrower on the Lingual aspect than on the facial aspect of the crown, except for one tooth. That Tooth is A. Maxillary first premolar B. Mandibular second premolar C. Permanent maxillary first molar D. Mandibular first premolar E. Permanent mandibular first molar

C. Permanent maxillary first molar

The predominant sequence of eruption of deciduous teeth is A. Central incisor, lateral incisor, canine, first molar, second molar B. Central incisor, lateral incisor, canine, second molar, first molar C. First molar, central incisor, lateral incisor, canine, second molar D. First molar, central incisor, lateral incisor, second molar, canine E. Central incisor, lateral incisor, first molar, canine, second molar

E. Central incisor, lateral incisor, first molar, canine, second molar

Which premolar has a mesial marginal ridge at a lower level than the distal marginal ridge? A. Maxillary first premolar B. Maxillary second premolar C. Mandibular first premolar D. Mandibular second premolar

C. Mandibular first premolar

The oblique ridge of the maxillary first molar is formed by union of A. The triangular ridge of the distobuccal cusp and distal cusp ridge of the mesiolingual cusp B. The triangular ridge of the distobuccal cusp and the triangular ridge of mesiolingual cusp C. The mesial cusp ridge of the distobuccal cusp and the triangular ridge the mesiolingual cusp D. The distal cusp arm of the mesiobuccal cusp and the triangular ridge of the distolingual cusp

A. The triangular ridge of the distobuccal cusp and distal cusp ridge of the mesiolingual cusp

In the sequence of eruption of the deciduous dentition which of the following is correct? A. Maxillary central incisor erupts before mandibular central incisor B. Mandibular lateral incisor erupts before maxillary lateral incisor C. Maxillary first molar erupts before mandibular first molar D. Mandibular canine erupts before maxillary canine

C. Maxillary first molar erupts before mandibular first molar

Which premolar has an uninterrupted transverse ridge? A. Maxillary first B. Maxillary second C. Mandibular first D. Mandibular second

C. Mandibular first

Which of the following teeth has a root trunk that is 1⁄2 to 2/3 it’s root length? A. Permanent mandibular first molar B. Permanent maxillary first molar C. Maxillary first premolar D. Mandibular first premolar

C. Maxillary first premolar

At the time of eruption of a permanent tooth, the root of the tooth is A. 1/3 developed B. 1/2 developed C. 2/3 developed D. Undeveloped

B. 1/2 developed

The roots of primary mandibular right first molar are flared to allow space for the development of A. #28 B. #29 C. #30 D. #20 E. #21

A. #28

In comparing the mandibular canine with the maxillary canine, the mandibular canine A. Has a more prominent bulkier cingulum B. Has a more prominent lingual ridge C. Well defined lingual pits D. More accentuated marginal ridges E. Has an incisal ridge that is 1/5 clinical crown height

E. Has an incisal ridge that is 1/5 clinical crown height

Which permanent tooth as a mesial marginal ridge developmental groove? A. Maxillary first premolar B. Maxillary second premolar C. Mandibular first premolar D. Mandibular second premolar E. Maxillary first molar

A. Maxillary first premolar

The first succedaneous tooth to erupt is A. Permanent mandibular first molar B. Permanent maxillary first molar C. Permanent mandibular central incisor D. Permanent mandibular lateral incisor E. Permanent maxillary central incisor

C. Permanent mandibular central incisor

From a facial view, the distal contact of the permanent mandibular canine is located in (at) A. Incisal 1/3 B. Middle 1/3 C. Junction of incisal and middle 1/3’s D. Junction of incisal and cervical 1/3’s

B. Middle 1/3

When viewed from the mesial, the crown of the mandibular first premolar is classically described as A. Trapezoidal B. Rhomboidal C. Square D. Rectangular

B. Rhomboidal

Which tooth has a mesiolingual developmental groove? A. Permanent mandibular first molar B. Permanent maxillary first molar C. Mandibular first premolar D. Mandibular second premolar E. Maxillary first premolar

C. Mandibular first premolar

The mesiolingual (developmental) groove A. Separates the mesial marginal ridge from the lingual cusp B. Separates the mesiolingual cusp from the distolingual cusp C. Separates the mesiolingual cusp from the mesial cusp D. Separates the mesial cusp from the lingual cusp

A. Separates the mesial marginal ridge from the lingual cusp

Which is the only incisor that has a crown that is wider mesiodistally than long incisogingivally? A. Permanent mandibular central incisor B. Permanent maxillary central incisor C. Primary maxillary central incisor D. Primary mandibular central incisor E. Primary maxillary lateral incisor

B. Permanent maxillary central incisor

The permanent maxillary first molar A. Two roots: the mesial root and the distal root B. Two roots: the buccal root and the lingual root C. Three roots: the mesiolingual, the mesiofacial and the distal D. Three roots: the mesiofacial, the distofacial and the lingual

D. Three roots: the mesiofacial, the distofacial and the lingual

Which of the following statements is true with respect to the major differences between primary and permanent teeth? A. Primary teeth have larger pulp chambers with prominent pulp horns B. Primary teeth have longer root trunks C. The roots of the posterior primary teeth are closer together and often fused D. Primary teeth have thicker dentin

A. Primary teeth have larger pulp chambers with prominent pulp horns

The average length of the maxillary central incisor (crown and root) is A. 24 mm B. 22 mm C. 27 mm D. 18 mm

A. 24 mm

The erupted dentition of a normally developed 7 year old child (7 years 0 days) consists of A. 4 permanent teeth and 20 primary teeth B. 6 permanent teeth and 20 primary teeth C. 6 permanent teeth and 18 primary teeth D. 10 permanent teeth and 10 primary teeth

C. 6 permanent teeth and 18 primary teeth

The size of the pulp chamber of a tooth A. Is the same size throughout life B. Increases with age C. Is larger in males D. May be affected by caries, trauma and restorative dental treatment

D. May be affected by caries, trauma and restorative dental treatment

The distal height of contour (facial view) of the permanent maxillary central incisor is located A. Incisal 1/3 B. Middle 1/3 C. Junction of incisal and middle 1/3’s D. Junction of incisal and cervical 1/3’s

C. Junction of incisal and middle 1/3’s

How soon after the eruption of a permanent tooth is the apex fully formed? A. Immediately B. 3 months C. 2-3 years D. 5-6 years

C. 2-3 years

In which of the following canines is the mesial slope of the cusp (mesial cusp arm, mesial cusp ridge) longer than the distal slope of the cusp? A. Permanent maxillary canine B. Permanent mandibular canine C. Primary maxillary canine D. Primary mandibular canine

C. Primary maxillary canine

When viewed from the occlusal aspect the outline of the permanent maxillary Second molar has two acute and two obtuse angles. The acute angles are A. Mesiolingual and distofacial B. Mesiofacial and distolingual C. Mesiolingual and mesiofacial D. Distolingual and distofacial

B. Mesiofacial and distolingual

The primary maxillary second molars resemble which permanent tooth A. Permanent maxillary first molars B. Maxillary premolars C. Permanent mandibular first molars D. Mandibular premolars

A. Permanent maxillary first molars

The primary mandibular canine erupts at A. 20 months B. 16 months C. 27 months D. 9-10 years

A. 20 months

Which premolar is most likely to have only one pulp horn? A. Maxillary first B. Maxillary second C. Mandibular first D. Mandibular second

C. Mandibular first

Which of the following teeth have a cusp of Carabelli 1. Permanent maxillary first molar 2. Permanent maxillary second molar 3. Permanent mandibular first molar 4. Primary mandibular first molar 5. Primary maxillary first molar 6. Primary maxillary second molar 7.Primary mandibular second molar A. 1,2,5 and 6 only B. 1,3,4 and 5 only C. 1 and 2 only D. 1 only E. 1 and 6 only

E. 1 and 6 only

The cingulum of the maxillary central incisor is A. Centered on the lingual aspect of the tooth B. Slightly mesial to the center of the lingual C. Slightly distal to the center of the lingual D. The maxillary central does not have a cingulum

C. Slightly distal to the center of the lingual

In a patient with crowding of the dental arch (ie: teeth too big for the amount of space in the arch), which of the following teeth in the mandible would you expect to be crowded/displaced out of the arch? A. Permanent mandibular canine B. Mandibular first premolar C. Mandibular second premolar

C. Mandibular second premolar

The transverse groove of the oblique ridge connects which of the following pits? A. Distal and central B. Distal and distofacial C. Central and distofacial D. Mesial and central E. Lingual and central

A. Distal and central

Which of the following primary molars bears the greatest resemblance to a premolar? A. Maxillary first B. Maxillary second C. Mandibular first D. Mandibular second

A. Maxillary first

In a patient with crowding of the dental arch (ie: teeth too big for the amount of space in the arch), which of the following teeth in the maxilla would you most expect to be crowded/displaced out of the arch A. Maxillary canine B. Maxillary first premolar C. Maxillary second premolar

A. Maxillary canine

Which of the following would be of greatest value in distinguishing between a primary mandibular second molar and permanent mandibular first molar? A. Number of roots B. Number of cusps C. Arrangement of grooves on the occlusal surface D. Comparative size of the distal cusps

D. Comparative size of the distal cusps

The interdental papilla is located in the A. Facial embrasure B. Lingual embrasure C. Cervical embrasure D. Occlusal embrasure

C. Cervical embrasure

When in its proper position relative to the plane of occlusion, the crown of the mandibular second molar inclines A. Mesially and facially B. Mesially and lingually C. Distally and facially D. Distally and lingually E. Lingually only

B. Mesially and lingually

A lingual pit is most frequently found on A. Maxillary central incisors B. Maxillary lateral incisors C. Mandibular central incisors D. Mandibular lateral incisors

B. Maxillary lateral incisors

The geometric form of the maxillary premolars when viewed from the mesial is A. Triangular B. Hexagonal C. Rhomboidal D. Trapezoidal

D. Trapezoidal

What is the permanent anterior tooth that varies in form the most A. Maxillary lateral incisor B. Maxillary central incisor C. Mandibular lateral incisor D. Mandibular central incisor E. Mandibular canine

A. Maxillary lateral incisor

Which premolar is most likely to have a ‘Y’ shaped fissure pattern? A. Maxillary first B. Mandibular first C. Maxillary second D. Mandibular second

D. Mandibular second

When viewing a permanent maxillary canine from the mesial aspect, one would normally expect a line bisecting the root longitudinally to pass A. Facial to the cusp tip B. Lingual to the cusp tip C. Bisect the cusp tip

B. Lingual to the cusp tip

When viewing a permanent mandibular canine from the mesial aspect, one would normally expect a line bisecting the root longitudinally to pass A. Facial to the cusp tip B. Lingual to the cusp tip C. Bisect the cusp tip

A. Facial to the cusp tip

The geometric outline of the facial and lingual surfaces of all posterior teeth is represented by which of the following geometric figures. A. Rhomboid B. Trapezoid C. Ovoid

B. Trapezoid

The mandibular second molar develops from how many lobes A. One B. Two C. Three D. Four

D. Four

Sequence the cusps of permanent maxillary first molar from largest to smallest: 1. Mesiofacial 2. Distofacial 3. Mesiolingual 4. Distolingual 5. Cusp of Carabelli 6. Distal cusp A. 1,2,3,4,5 B. 1,2,3,4,6 C. 3,1,2,4,5 D. 3,1,2,4,6 E. 3,5,4,1,2

C. 3,1,2,4,5

Which is the longest root in the maxillary first molar? A. Lingual B. Mesiobuccal C. Distobuccal D. Mesial E. Distal

A. Lingual

The primate space is A. A space that is found mesial to the maxillary canine and distal to the mandibular canine in the deciduous dentition B. The surplus space due to the difference between the combined mesiodistal widths of the permanent premolars and canines and the deciduous molars and canines

A. A space that is found mesial to the maxillary canine and distal to the mandibular canine in the deciduous dentition

Tooth position in the arch is dictated by A. Muscle activity of the lips, tongue and cheek B. Amount of space in the arch for the teeth C. Presence of interproximal contacts D. All of the above

D. All of the above

The mesiolateral curvature of the plane of occlusion is called A. The curve of Spee B. The curve of Wilson C. The curve of Bennet

B. The curve of Wilson

The permanent maxillary central incisors have a A. Facial and slight distal inclination B. Facial and mesial inclination C. Lingual and mesial inclination D. Lingual and distal inclination E. Vertical – have no inclination

A. Facial and slight distal inclination

The anteroposterior curvature of the occlusal plane is referred to as the curve of A. Wilson B. Spee C. Frankfort D. Alatragal

B. Spee

The term ‘occlusal table’ refers to A. The occlusal area defined by the buccal and lingual cusp ridges B. Refers to a plane that touches the incisal edges of the anterior teeth and the cusp tips of the posterior teeth C. Is approximately 90-100% of the total buccolingual width of the tooth

A. The occlusal area defined by the buccal and lingual cusp ridges

The occlusal table forms what percentage of the total buccolingual width of the tooth A. 10-20% B. 20-30% C. 50-60% D. 90-100%

C. 50-60%

The plane of occlusion is a A. Midsaggital plane that bisects the dental arch B. Plane that extends across the arch and touches the cusp and incisal edges of all the teeth C. Convex upwards

B. Plane that extends across the arch and touches the cusp and incisal edges of all the teeth

When making a left lateral movement, the prime mover of the mandible is A. Left lateral pterygoid B. Right lateral pterygoid C. Right digastric D. Left digastric E. Left temporalis

B. Right lateral pterygoid

The buccal cusps of the mandibular teeth and the lingual cusps of the maxillary teeth are A. Supporting or stamp or functional cusps B. Guiding or shearing or non-functional cusps

A. Supporting or stamp or functional cusps

Which of the following muscles are primarily involved in elevation of the mandible 1. Masseter 2. Medial pterygoid 3. Lateral pterygoid 4. Digastric 5. Temporalis A. 1,2,3,4 and 5 B. 1,2 and 5 only C. 3 and 4 only D. 1,2,4 and 5 only

B. 1,2 and 5 only

Which muscle of mastication inserts into the lateral aspect of the ramus of the Mandible as far as the angle of the mandible A. Masseter B. Medial pterygoid C. Lateral pterygoid D. Temporalis

A. Masseter

Which muscle of mastication has a head or part that originates from the infratemporal surface of the greater wing of the sphenoid? A. Masseter B. Medial pterygoid C. Lateral pterygoid D. Temporalis

C. Lateral pterygoid

The primary function of the pulp is A. Provide nutrition B. Provide sensation C. Form dentin D. Form enamel

C. Form dentin

The embrasure spaces around the posterior teeth are called A. Occlusal, cervical, mesial and distal B. Occlusal, cervical, facial and lingual C. Incisal, cervical, facial and lingual D. Incisal, occlusal, mesial and distal

B. Occlusal, cervical, facial and lingual

From anterior to posterior (ie: first to third), which cusp of the maxillary cusps gets progressively smaller and may even disappear A. Mesiolingual B. Mesiobuccal C. Distolingual D. Distofacial

C. Distolingual

In an ideal arrangement of teeth (Angles class I), (centric occlusion), the distobuccal cusp of the permanent mandibular first molar occludes in the A. Central fossa of the opposing maxillary first molar B. Distal fossa of the opposing maxillary first molar C. On the oblique ridge D. On the mesial marginal ridge area

A. Central fossa of the opposing maxillary first molar

Calcification of the crown of the permanent mandibular first molar is usually complete by A. Birth B. 2 1/2 to 3 years C. 6 months D. Not until 6 years of age

B. 2 1/2 to 3 years

From a facial view, the maxillary second molar has it’s MF root apex in line with A. Facial groove B. DF line angle C. DF cusp tip D. MF cusp tip

A. Facial groove

The level of the bifurcation in the mandibular first molar occurs closest to the CEJ on which aspect of the tooth A. Mesial B. Distal C. Lingual D. Buccal

D. Buccal

what tooth has centered, roughly even lobes?

max premolars

what tooth has a mesial marginal ridge developmental groove?

1st max premolar

what preomolar has a mesial concavity and mesial root depression?

first max premolar

what premolars have crowns that are not centered with the vertical line going through root?

mandibular premolars

what tooth has mesiolingual groove?

first mandibular premolar

what tooth has uniterrupted transverse ridge?

first mandibular premolar

what tooth has a lingual developmental groove?

second mandibular premolar

what perm teeth are longer faciolingually than they are mesiodistially?

all but maxillary central and lateral incisors

where is the greatest cej curvature

max ci mesial

first evidence of calcification of permanent maxillary first molar

birth

maxillary first premolar has what defining feature

mesial concavity / developmental depression

all anterior teeth develop from how many lobes?

when is mesial slope of cusp longer than distal?

buccal of perm max first premolar

does the gingival papilla occupy the facial embrasure

what tooth is most likely to develop from 5 lobes?

mandibular second premolar

Anterior teeth develop from ______ lobes Posterior teeth develop from ______ lobes or _______ lobes

4; 4; 5

Maxillary and mandibular first molars begin to calcify at _____

Birth They are the first to begin calcification

The mandibular third molars are the ________ to begin calcifying. This happens at about _______ years of age.

Last teeth; 8-10

First max premolar begins to calcify at _____ years

1.5

Second premolar begins to calcify at ______ years

first evidence of calcification of max central incisors

3-4 months

Apex of max central incisor root is slightly _______ to long axis of tooth

Distal

incisal angles on maxillary central incisor

mesial is 90°, distal is rounded

first evidence of calcification of max lateral incisors

1 year

maxillary lateral incisors has _____ pronounced ______ and ________ on ______ surface than central, and a __________

More; mesial and distal marginal ridges; lingual; deeper lingual fossa

compare roots of maxillary central and lateral incisors

lateral may be longer or same size

Calcification begins when for mand CI

Calcification begins 3-4 months

tell me about dev depressions on mand c i

greater on distal of root than mesial

buccal and lingual triangular ridge on which tooth

max first premolar

in the Max CI, the root does what 2 things?

taper distally and lingually

what shape is the root cross section of the Max CI

triangular

what shape is the root cross section of the Mand CI?

ovoid

in the Mandibular Canine, the cusp tip is what to the bisecting line?

lingual

in the mandibular Canine, the lingual cusp tip is in line with what?

lingual side of the root

in the mandibular canine, the buccal cusp tip is in line with what?

apex of the root

on max canines, from the facial aspect, the cusp tip is in line with what?

center of the root

from the mesial aspect of the max canine, the cusp tip is how in relation to the line bisceting the root?

facially/buccally

is it the Mand or Max canine, where the cusp tip is lingual to the line bisceting the root?

mand canine

is it the Mand or Max canine, where the cusp tip is facial to the line bisceting the root?

max canine

what shape is the root cross section of the max canine?

oval

in the max canine, the mesial outline in line with what?

mesial outline of root

in the max 1st premolar, the lingual cusp is located more (mesially or distally)?

mesially

what shape is the cross section of the max 1st premolar?

kidney bean

what shape is the cross section of the max 2nd premolar?

oval

in the mand 1st premolar, the buccal cusp tip is centered over the

midline of the tooth

what is the buccal HOC on the mand 1st premolar?

junction of middle and cervical 1/3

in the mand 1st premolar, the lingual HOC is what to the outline of the root?

lingual

in the mand 1st premolar, the lingual cusp tip is in line with what?

lingual border of the root

in the max 1st molar, the MB cusp is in line with what?

MB root

in the max 1st molar, the lingual root is in line with what?

buccal groove

on the buccal side of the max 1st molar, the root trunk is how much of the root?

1/3

label the furcations (largest to smallest) of the max 1st molar

D,B,M

in the max 2nd molar, the MB root is in line with what?

buccal/lingual groove

in max 2nd molar, the lingual root lines up with what?

DL cusp tip

on mandibular molars, the crowns have what tilt?

lingual tilt

on the mandibular 1st molar, is the cervical line higher lingually or buccally?

lingually

what 4 things does the periodontium include?

gingiva cementum periodontal ligament alveolar bone

this surrounds the tooth to form a collar of tissue with a space or sulcus; most incisal unattached portion

free gingiva

seperates attached gingiva from free gingiva

free gingival groove

this extends between the free gingiva and alveolar mucosa

attached gingiva

this is the zone of gray to light ot coral pink keratinized masticatory mucos that is firmly bound to underlying bone

attached gingiva

this is the junction between attached gingiva and the looser, alveolar mucosa

mucogingival junction

this is moveable, dark pink to red tissue apical to the mucogingival junction

alveolar mucosa

what are the 4 functions of the pulp?

formative, nutritive, sensory, defensive

what tooth is LEAST likely to have a bifurcated root?

maxillary canine

what tooth has the most splayed roots of any tooth in the permanent dentition; may splay out wider than crown width

maxillary 1st molar

resorption begins how many years after root formation is completed?

1-2 years

where does resportion begin at?

apex of the tooth

the 12 molar teeth that erupt after the 20 permanent teeth are called

accessional teeth

is enamel thinner in permanent or primary teeth?

primary

are permanent or primary teeth lighter in color?

primary

what tooth has a greater MD width than a IG width?

primary maxillary CI

do permanent or primary teeth have a more bulbous crown?

primary

do permanent or primary teeth have thicker enamel?

permanent

do permanent or primary teeth have more pronounced cervical constrictions?

primary

do permanent or primary teeth have larger pulp chambers with more prominent pulp horns?

primary

do permanent or primary teeth have larger root trunks?

permanent

the primary maxillary 1st molar has a very prominent convexity on what aspect?

describe the leeway space

max canine --> 2nd premolar area of permanent have a smaller space than the primary

All the max premolars and molars have what buccal and lingual HOC?

Buccal = cervical 1/3 Lingual = middle 1/3

all the mandibular premolar, have the same HOC for buccal and lingual except for what tooth?

mand 1st premolar

what is the buccal HOC of mand 1st premolar?

junction of middle and cervical 1/3

Which image shows the mesial view of the mandibular lateral incisor?

A Explanation: From the mesial view, you can see a portion of the lingual surface. You can't see any of the lingual surface from the distal view.

What is the name of the highlighted embrasure? A. Incisal embrasure B. Gingival embrasure C. Facial embrasure D. Lingual embrasure

B. Gingival embrasure

What is the name of the highlighted embrasure? A. Incisal embrasure B. Gingival embrasure C. Facial embrasure D. Lingual embrasure

C. Facial embrasure

Identify this tooth A. Maxillary canine B. Maxillary 1st premolar C. Maxillary 2nd premolar

B. Maxillary 1st premolar

What premolar is this tooth? A. Maxillary 1st B. Maxillary 2nd C. Mandibular 1st D. Mandibular 2nd

C. Mandibular 1st Explanation: Note the mesiolingual groove outlined in red. This groove is unique to the mandibular 1st premolar!

Using universal notation, what is the tooth number for this tooth? A. #20 B. #21 C. #28 D. #29

C. #28

What is the name of the structure highlighted in orange? A. Cusp tip B. Marginal ridge C. Oblique ridge D. Triangular fossa

C. Oblique ridge

Identify this molar A. Maxillary 1st B. Maxillary 2nd

A. Maxillary 1st

Using universal notation, what is the tooth number for this tooth? A. #2 B. #3 C. #14 D. #15

B. #3

These pictures represent the mesial and distal views of the same tooth. Identify the tooth. A. #18 B. #19 C. #30 D. #31

C. #30 Explanation: You can tell it is permanent mandibular 1st molar because you can see DB and Distal cusps from the distal view (no distal cusp in the mandibular 2nd molar). Then, using the surfaces as orientation, you can determine it is a mandibular RIGHT first molar – #30.

What molar is illustrated in this transverse section? A. Maxillary 1st B. Maxillary 2nd C. Mandibular 1st D. Mandibular 2nd

A. Maxillary 1st

Using universal notation, what is the tooth number of the tooth illustrated here in transverse section? A. #2 B. #3 C. #14 D. #15

C. #14

Which is the older tooth?

What is the universal number for this tooth? A. #6 B. #7 C. #8 D. #9 E. #10 F. #11

E. #10

What is the universal number for this tooth? A. #6 B. #7 C. #8 D. #9 E. #10 F. #11

D. #9

Which crown belongs with the below root (shown in transverse section)?

Identify this incisor A. Primary maxillary central incisor B. Primary maxillary lateral incisor C. Permanent maxillary central incisor D. Permanent maxillary lateral incisor

A. Primary maxillary central incisor Explanation: The primary central incisor is notable for having a mesiodistal width that is GREATER than its incisogingival length. This is the only incisor in either dentition with this characteristic!

Which primary molar has an oblique ridge & a distolingual groove? A. Maxillary 1st B. Maxillary 2nd C. Mandibular 1st D. Mandibular 2nd

B. Maxillary 2nd