Tooth Morph

Question 1

What teeth usually have 2 cusps of similar height?

Answer 1

Maxillary 2nd premolars

Question 2

____________is the largest in newly erupted tooth and reducing in size throughout adulthood as_______________

Answer 2

pulp chamber, secondary dentine is laid down

Question 3

________are entrance of root canal ?

Answer 3

Orifices

Question 4

Canal shape is generally wider (buccolingually/mesialdistally) ?

Answer 4

buccolingually

Question 5

The (buccal or lingual) side of tooth 36 has 3 cusps ?

Answer 5

Buccal

Question 6

The oblique ridge of max. molar is found towards________side ?

Answer 6

Disto Palatal

Question 7

Mand. second pre molar can have either 1 or 2 (lingual/buccal) cusps

Answer 7

lingual

Question 8

________is where root trunk divide into seperate roots ?

Answer 8

Furcation

Question 9

Weine’s classification is for____rooted teeth ?

Answer 9

single

Question 10

What are the weine’s type for max. central & lateral incisors are usually ?

Answer 10

• almost always 1

Question 11

_________is the opening to root canals ?

Answer 11

Root orifice

Question 12

Orifices can be which 3 shapes ?

Answer 12

Circular, oval, c-shaped

Question 13

What are the weine’s type for Mand. INCISORS ?

Answer 13

• 56-70% type 1, 25-30% type 2, 5-15% type 3

Question 14

What is the weine’s type for Mand. canines ?

Answer 14

• 70% type 1, 20% type 2, 10% type 3

Question 15

What are the weine’s types for Max. canine ?

Answer 15

• almost always type 1

Question 16

• Max. 1st pre molar has how many roots ?
• What are the no. of canals PER ROOT for Max. 1st pre molar ?

Answer 16

• 1-3 roots, 95% have 2
• 1 canal PER ROOT (bucal + lingual)

Question 17

What are the weine’s types for Max. 2nd pre molar ?

Answer 17

• normally 1 root
• 53% type 1, 35% type 2 & 3, 11% 2 ROOTS w/ 2 or 3 canals in total

Question 18

• What are the weine’s types for Mand. pre molars

Answer 18

• normally 1
• 73% type 1, 27% w/ 2 canals and sometimes type 3

Question 19

Max. 1st molars have how many roots & canals ?

Answer 19

normally 3 roots w/ 4 canals in total

Question 20

Max. 2nd molars have how many roots & canals ?

Answer 20

normally 3 roots w/ 3-4 canals in total (62% has 3 canals, 38% has 4 canals)

Question 21

Which root of Max. 2nd molars can have 1 or 2 canals ?

Answer 21

Mesial

Question 22

Mand. 1st molars have how many roots & canals ?

Answer 22

2 roots w/ 3 or 4 canals in total (67% has 3 canals, 33% has 4 canals)

Question 23

Mand. 2nd molars have how many roots & canals ?

Answer 23

2 roots w/ 3 or 4 canals (90% has 3 canals)

Question 24

What is the biggest cusp on maxillary 1st molar ?

Answer 24

MesioPalatal

Question 25

The (mesio/distal) marginal ridge is more bulged in primary max. canines ?

Answer 25

Mesio

Question 26

The (mesio/distal) marginal ridge is more bulged in primary mand. canines ?

Answer 26

distal

Question 27

The (mesio/distal) marginal ridge is more straight in perm. canines

Answer 27

Mesio

Question 28

A transverse ridge is ___ cannot be found on maxillary first premolar a structure composed jointly of oblique and triangular ridges characteristically found on all mandibular premolars can only be found on maxillary second premolar a structure composed jointly of buccal and lingual cusp triangular ridges

Answer 28

a structure composed jointly of buccal and lingual cusp triangular ridges

Question 29

Which of the following teeth has two cusps which are almost equal in height? Tooth 35 Tooth 14 Tooth 45 Tooth 25 Tooth 34

Answer 29

25

Question 30

cusp of carabelli is found in________

Answer 30

MESIOPALATAL of max. molars

Question 31

(Buccal/Palatal) cusps higher on Prim. Max. 1st molar

Answer 31

Buccal

Question 32

(Buccal/palatal) face of Prim. Max. 1st molar has a wider M-L width

Answer 32

Buccal

Question 33

- Tubercle of Zuckerkandl is found in which teeth - It is most obvious in which tooth - It is found on which surface

Answer 33

- All Prim. 1st Molars - Prim. Max. 1st molar - MesioBuccal

Question 34

- When looking at the Prim. Max. 1st molar buccaly, the crown is shorter on the (mesial/distal)

Answer 34

distal

Question 35

Prim. Max. 1st molar has______roots Prim max. 2nd molar has______roots

Answer 35

3 3

Question 36

- Prim. Max. 1st molar has_____cusps - which cusp is the smallest - Does it contain the oblique ridge

Answer 36

- 4 - DistoPalatal - Yes

Question 37

Prim. Mand. 1st molar - When looking Buccal/Lingually, the crown is the shortest on (mesial/distal)

Answer 37

distal

Question 38

On Prim. Mand. 1st molar, the overall crown height is shorter on the (buccal/lingual) side

Answer 38

Lingual

Question 39

What is the tallest cusp on Primary mandibular first molar

Answer 39

MesialBuccal

Question 40

(Buccal/Lingual) cusps are generally taller on Prim. Max. 1st molar

Answer 40

Buccal

Question 41

When looking @ Prim. Mand. 1st molar OCCLUSALLY, the crown is wider (mesial/distally)

Answer 41

Mesially

Question 42

(Buccal/Lingual) cusps are generally taller on Prim. Mand. 1st molar

Answer 42

Buccal

Question 43

The heights of buccal & lingual cusps are the MOST similar in which pre molar ?

Answer 43

Perm. Max. 2nd

Question 44

The heights of buccal & lingual cusps are the MOST different in which pre molar ?

Answer 44

Perm. Mand. 1st

Question 45

Mesial Marginal dvlp groove is a unique feature to which tooth

Answer 45

Perm. Max. 1st pre molar

Question 46

On perm. max. lateral incisor, (mesial/distal) marginal ridge is longer

Answer 46

mesial marginal

Question 47

When looking @ tooth 16 from palatal aspect, the (mesiopalatal/distopalatal) cusp is taller & wider in size ?

Answer 47

mesiopalatal

Question 48

What is the tallest cusp in tooth 16

Answer 48

Mesiopalatal

Question 49

What is the tallest cusp in tooth 46

Answer 49

Mesiolingual

Question 50

Which cusp diminshes in each successive molar tooth ?

Answer 50

DistoPalatal or DistoLingual

Question 51

Which point angle on tooth 37 & 47 is the most "pointy" when looking occlusally ?

Answer 51

MesialBuccal

Question 52

Transverse ridge is formed by__________

Answer 52

joining 2 triangular ridges

Question 53

Most roots have a longitudinal root concavity (depression) that is usually deeper (mesially/distally)

Answer 53

distal