Things that owned me on the DRILL-part 4

Question 1

During initial and intermediate jaw opening movement, articular disc moves with the ______.

Answer 1

Condyle

Question 2

During initial and intermediate jaw opening movement, INFERIOR belly of the Lateral Pterygoid _______, the SUPERIOR belly of the lateral pterygoid ______.

Answer 2

contracts…relaxes

Question 3

From an occlusal view, what anatomical feature is frequently found on BOTH the primary maxillary first and second molars?

Answer 3

A well developed oblique ridge

Question 4

TRUE or FALSE???? From a frontal view, the angulation of the maxillary incisors is lined up with the horizontal axis.

Answer 4

False (WTF?!)

Question 5

TRUE or FALSE????? From a sagittal view, the angulation of the maxillary incisors is lined up with the vertical axis.

Answer 5

False

Question 6

The dentin of the crown of a tooth and that of the root differ by the primary _______ of the tubules DECREASE in root dentin.

Answer 6

CURVATURES

Question 7

Does the anterior temporalis contract on normal closure of the mandible?

Answer 7

YES!

Question 8

True or False? The crest of curvature (or crest of contour) on premolars and anterior teeth is located approximately the same distance from the cervical line

Answer 8

false…PMs are a bit more occlusally positioned

Question 9

TRUE OR FALSE? Perm Max 1st molar- Its faciolingual width is greater than its mesiodistal length

Answer 9

TRUE

Question 10

TRUE OR FALSE? Perm Max 1st molar- There is a shallow facial groove that lies between the facial cusps

Answer 10

False

Question 11

TRUE OR FALSE? Perm Max 1st molar- It is the second-largest tooth in the maxillary arch

Answer 11

False

Question 12

TRUE OR FALSE? Perm Max 1st molar- The occlusal table appears square in shape, due to the tooth’s four well­ developed cusps

Answer 12

False

Question 13

True or False: Primary Max 2nd molar- Occlusally, the crown is rhomboidal, with the oblique ridge connecting the mesiolingual cusp with the distolingual cusp

Answer 13

FALSE (fuck me right!?)

Question 14

True or False: Primary Max 2nd molar- Unlike the first molar, the cervical constrictions are less conspicuous

Answer 14

True

Question 15

WTF!?! Inorganic crystals in enamel have their LONG AXIS parallel to the RODS in the ______ of the rods and deviating increasing the _____.

Answer 15

Bodies….tails

Question 16

In MI, the oblique ridge of a perm max 1st molar opposes what?

Answer 16

the developmental groove separating the DF and D cusps on the mand 1st molar (how did you get that wrong?!)

Question 17

Eruption yo: True or False–The mixed dentition phase begins with the emergence of the permanent central incisors and ends with the emergence of the second molars

Answer 17

False..hmm it must end with the canine coming in…the 2nd molar is not succedaneous

Question 18

Eruption yo: True or False– The emergence of the primary dentition occurs between the ages of 6 months and 30 months

Answer 18

true

Question 19

Dang, I had no clue…In an acquired Class III crossbite relationship, as the mandible retrudes, the permanent maxillary lateral incisor contacts which of the following teeth?

Answer 19

Canine and Lateral Incisors

Question 20

This SEEMED like a straightforward question…The size, shape and alignment of the _____________ determine many of the limits of mandibular movements.

Answer 20

Teeth

Question 21

What TMJ ligaments has an outer oblique portion that limits the extent of jaw opening and initiates translation of the condyle down the articular eminence?

Answer 21

Tempromandibular Ligament

Question 22

True or False: mandibular second molar pulp and root morphology—The root trunk is prominent

Answer 22

True

Question 23

True or False: mandibular second molar pulp and root morphology—The mesiofacial orifice lies directly below the mesiofacial cusp tip and the mesiolingual orifice lies below the mesiolingual cusp tip

Answer 23

False (they are more in the center of the tooth eh?)

Question 24

True or False: mandibular second molar pulp and root morphology—This tooth most frequently has two roots with three canals

Answer 24

True

Question 25

True or False: mandibular second molar pulp and root morphology—The roots of the second molar taper and are more pointed than the roots of the first molar

Answer 25

True

Question 26

True or False: mandibular second molar pulp and root morphology—The mesial root is less broad faciolingually on this tooth than on the first molar

Answer 26

True

Question 27

Where can I find a CONVEX proximal root surface on the perm mand 1st molar?

Answer 27

the DISTAL aspect of the DISTAL root

Question 28

Anterior Function and Guidance: True or False– The vertical overlap of the incisors indicates the amount of vertical disocclusion that is available

Answer 28

True

Question 29

Anterior Function and Guidance: True or False– Anterior teeth exhibit a passive contact in the intercuspal position vs. posterior teeth

Answer 29

True

Question 30

Anterior Function and Guidance: True or False–The anterior teeth separate the premolars but not the molars during function and the anterior teeth also prevent lateral movement of the mandible

Answer 30

False

Question 31

Anterior Function and Guidance: True or False–When combined with a bruxism habit, steep anterior guidance may force anterior teeth to move in a facial direction

Answer 31

True

Question 32

Ahhh yes, this one…Prevalence of OLIGODONTIA is between 1% and 2% in the ______ dentition, and between 3% and 9% in the ______ dentition

Answer 32

primary…permanent

Question 33

From proximal views, incisal edges and/or cusp tips are in a position slightly FACIAL to a bisecting line through the height of curvature of the cervical line and the apex of the root in the permanent….

Answer 33

Max Lateral Incisors

Question 34

The Bennett movement is best described as the bodily shift of the mandible in the direction of the ______ condyle

Answer 34

working

Question 35

Perm Mand Cent Incis Pulp Morph-True or False-The canal typically is located on the lingual portion of the root apex

Answer 35

False

Question 36

Perm Mand Cent Incis Pulp Morph-True or False-The labiolingual dimension is very large

Answer 36

True

Question 37

Perm Mand Cent Incis Pulp Morph-True or False- Two canals are not typical

Answer 37

True

Question 38

Perm Mand Cent Incis Pulp Morph-True or False-

The mesiodistal dimension is small

Answer 38

True

Question 39

Perm Mand Cent Incis Pulp Morph-True or False-The mandibular lateral incisor pulp chamber tends to be larger

Answer 39

True!

Question 40

Got lucky—-Accessory root canals can be formed by

a break in the _______ prior to dentin formation

Answer 40

epithelial root sheath (Hertwig)