Things that owned me on the DRILL-part 1

Question 1

During a lateral movement of the mandible, the ARTICULAR DISC is tightly attached to the HEAD of the CONDYLE by which LIGAMENT??

Answer 1

Collateral ligament

Question 2

In a RIGHT working movement, the MF cusp of a PERM MAX Right 2nd MOLAR will pass through what??

Answer 2

the facial groove of the mand 2nd molar

Question 3

Muscle vectors in a sagittal plane: what is the vector for the Lateral Pterygoid?

Answer 3

ANTERIOR

Question 4

True or False: When viewing mandibular movement at the CONDYLAR level on a SAGITTAL tracing, the angulation between MAXIMUM PROTRUSION and the HORIZONTAL AXIS is GREATER THAN the angulation between the NON-WORKING pathway and the HORIZONTAL axis.

Answer 4

FALSE! the NW pathway and the horizontal axis have the greatest angle

Question 5

Which tooth has the LEAST developed cingulum?

Answer 5

mandibular Lateral incisor

Question 6

Where is the D contact area on a perm mandibular canine? where is the M contact?

Answer 6

II II IM….distal=middle, mesial=incisal

Question 7

During a WORKING movement of the mandible, the F cusp ridges of the MAX 1ST PM on the working side oppose which mandibular structures?

Answer 7

the D cusp ridge of the mand 1st pm and the M cusp ridge of the 2nd PM

Question 8

Which mandibular has root surface depressions on BOTH its proximal surfaces?

Answer 8

the mand 1st PM

Question 9

Which extrinsic muscle of the tongue RETRACTS the tongue?? (according to Dr. A)

Answer 9

the STYLOglossus!!!! (& the hyoglossus if you want to get technical with it)

Question 10

True or False: Primary vs Perm–The dentin thickness between the pulp chambers and the enamel is limited, particularly in some areas (mandibular second primary molar)

Answer 10

TRUE! (so why did you mark it as false?!) :)

Question 11

True or False: Ideal occlusal contacts should occur between a cusp tip and a flat surface like a marginal ridge.

Answer 11

TRUE! that AND cusp & fossa!

Question 12

During the life span of a multi rooted tooth, where does dentin continue to form MOST rapidly???

Answer 12

FLOOR and ROOT of the pulp chamber

Question 13

The condyle on the working side generally rotates about a ______ axis and ________ laterally

Answer 13

verticle…translates

Question 14

When in its proper position relative to the plane of occlusion, the crown of a permanent mandibular second molar inclines _____ and ______.

Answer 14

MESIAL and Lingual

Question 15

T/F: Supernumerary teeth are of normal shape and size

Answer 15

F

Question 16

T/F: Supernumerary teeth are rarely associated with cleft lip and palate

Answer 16

F

Question 17

T/F: The Incidence of supernumerary teeth is quite common in primary dentition (between 3% and 4%) and uncommon in the permanent dentition (between 1% and 1.5%)

Answer 17

F

Question 18

T/F: Neonatal teeth are supernumerary teeth

Answer 18

F

Question 19

T/F: The maxilla is significantly more likely to have supernumerary teeth as the mandible

Answer 19

T

Question 20

What is the most unique feature of a maxillary canine from a facial view?

Answer 20

concavity on the DF cervical 1/3 (HUGE CAVITY AREA)

Question 21

Which tooth is more likely to have 1 or NO pulp horns?

Answer 21

Mandibular Incisiors (RATS! I put max incisors)

Question 22

T/F: At 14 weeks in utero, hard tissue begins forming in the central incisor, and sometimes the lateral incisor

Answer 22

True

Question 23

T/F: At 55 - 56 days in utero, hard tissue begins forming in the central incisor

Answer 23

FALSE- 56 days is 8 weeks. QUICK MATH tells me this is Way to SOON

Question 24

T/F: By 16 weeks in utero, hard tissue begins forming in in the first molar

Answer 24

True

Question 25

T/F: At 42 - 48 days in utero, the dental lamina forms

Answer 25

True

Question 26

T/F: By 18 weeks in utero, hard tissue begins forming in the second molar

Answer 26

True

Question 27

Is Chronic Periodontitis a symptom of pathogenic occlusion?

Answer 27

Hell NAW

Question 28

The Bennett Angle is formed between between _______ and _________ lines on the pantographic tracing

Answer 28

protrusive and NW lines...how did i get this wrong?? OH, I put protrusive and NW condyler paths, not PANTOGRAPHIC TRACING (WTF?)

Question 29

The stylomandibular ligament limits excessive _______ movement of the mandible

Answer 29

protrusive

Question 30

What kind of a role does the sphenomandibular ligament play in limiting mandibular movement?

Answer 30

A MINIMAL role

Question 31

The roots of primary anterior teeth are comparatively ________ and ________ when matched against the permanent dentition.

Answer 31

Narrower, longer

Question 32

What is the shape of the functional form of Max 2nd PMs?

Answer 32

Oval

Question 33

Movement of the mandible is characterized by the position of the _________ in ______________.

Answer 33

condyle in the GLENIOD FOSSA (not the articular eminence)

Question 34

In a sagittal plane, what is the THICKEST section of the articular disc?

Answer 34

Posterior border

Question 35

Permanent MANDIBULAR canines usually erupt at age:

Answer 35

9-10 years

Question 36

The dentition of a normally developed 7 year old has ____ primary teeth and ___ permanent teeth.

Answer 36

18 primary (only lost the central's)....6 permanent (centrals in, 1st molars in)

Question 37

What is the shape of the Mand 1st PM from the FACIAL aspect?

Answer 37

pentagonal (not diamond, which is occlusal view!)

Question 38

Does normal mastication INFLUENCE the alignment of teeth?

Answer 38

NO!!! go figure!

Question 39

T/F: In the horizontal plane, the contour of the glenoid fossa's posterior wall (working side) dictates the placement of tooth grooves in the working side

Answer 39

True

Question 40

T/F: Immediate side shift is movement into the position toward the medial fossa wall on the working side

Answer 40

True

Question 41

T/F: The working groove is usually at a right angle to the central groove, while the nonworking groove is usually oriented at an oblique angle to the central groove

Answer 41

True

Question 42

T/F: The Bennett Angle is another name for the Bennett Movement

Answer 42

False!

Question 43

T/F: In the horizontal plane, the contour of the glenoid fossa's medial wall (non­working side) determines working, nonworking and central groove position and width

Answer 43

True

Question 44

The permanent anterior tooth whose pulp chamber has the GREATEST FL measurement is the????

Answer 44

MAXILLARY CANINE

Question 45

T/F: Coordinated chewing operates at the open end of a chewing stroke when muscle elevator and muscle opener actions overlap

Answer 45

True

Question 46

T/F: The crushing stage requires 3-4 strokes and the tituration (grinding) stage averages 20 strokes

Answer 46

True

Question 47

T/F: The adaptive arc of closure and the touch-open reflexes both occur at the expense of muscles and joints

Answer 47

True

Question 48

T/F: During mastication, the food bolus is normally positioned bilaterally on both the working and non-working sides

Answer 48

False

Question 49

T/F: Actual tooth contact during chewing is common

Answer 49

False