Things that owned me on the DRILL-part 2 Flashcards
________ ligaments attach the articular disc to the condyle.
Collateral Ligaments
At the level of the condyle, the mandibular movement exhibited on a horizontal tracing that is exhibited as a long, gently sloping arc emanating from centric relation is called the?
Progressive sideshift
What two muscles position the condyles in the most SUPERIOR/ANTERIOR position?
Masseter and Medial Pterygoid
What muscle attaches the base of the tongue to the hyoid bone?
Geniohyoid muscle
T/F: The outer oblique portion of the temporomandibular ligament limits normal rotational opening movement of the mandible.
True!
T/F: The inner horizontal portion of the temporomandibular ligament limits posterior movement of the condyle and articular disc.
True!
Where does the tip of the perm mand canine pass thru in lateral excursion?
passes mesial to the tip of the Max Canine
Which root surface of the perm max 1st molar have depressions?
lingual (answer choice) (and distal (not DF))
Which perm incisor has marked curvature of the roots in the apical 1/3?
max lateral incisor
T/F: Ideal primary occlusion at age 3: The maxillary second molar occludes with the remainder of the mandibular second molar, with the distal surface of the maxillary molar projecting slightly over the distal end of the mandibular second molar
True
T/F: Ideal primary occlusion at age 3: The maxillary central incisor occludes with the mandibular central incisor and the mesial third of the mandibular lateral incisor
True
T/F: Ideal primary occlusion at age 3: The maxillary lateral incisor occludes with the mesial two-thirds of the mandibular lateral incisor and the mesial surface of the mandibular canine
False
T/F: Ideal primary occlusion at age 3: The maxillary first molar occludes with the distal two-thirds of the mandibular first molar and the mesial section of the mandibular second molar
True
T/F: Ideal primary occlusion at age 3: The maxillary canine occludes with the mandibular canine distal to its cusp tip and the mesial third of the mandibular first molar
True
Why would some dental tubules appear black in a photomicrograph of a ground section of a tooth?
they are filled with air during suctioning, SO F’n RANDOM
In MI, where in the maxilla does the tip of the mandibular canine chill?
max lateral incisor and max canine at the approximation of their marginal ridges
Which teeth are going to be affected (aka which teeth are calcifying) when mom takes tetracycline during the 2nd trimester of pregnancy?
ALL PRIMARY TEETH ( NO PERMANENT TEETH!)
T/F? The shape of the heads of the condyles determines many of the limits of mandibular movement.
True
T/F? The mandible is the only bone in the human body that possesses two axes of rotation.
True
What % of the total FL dimension does the occlusal table of any permanent posterior tooth comprise?
55-65 %
Does the max 1st PM have a transverse ridge?
Yes!
Does the mand 1st PM have a transverse ridge?
Yes!
Does the ‘Y’ shaped Mand 2nd PM have a transverse ridge?
No!
Ready for this bastard?? In a patient with a left canine protection, the ML surface of the perm MAX R 1st MOLAR contacts the DF surface of the mand R 1st molar during a LEFT lateral excursion. This contact is a _______ side interference.
Non-working
Mand lateral incisor-Lingual view: the crest of the cervical line apically will usually be _____ to the long axis bisector.
distal
Mand lateral incisor-Lingual view: ________ are consistently indistinct or inconspicuous
marginal ridges
Progressive sideshift is also called the ______ movement
non-working!
Which permanent tooth most likely has the largest faciolingual pulp chamber measurement in the mouth?
max 1st molar!
Where is the most difficult area to remove calculus from the root area of the permanent molars?
distal of max 1st’s
In MI, where does the MF cusp of the mand 2nd molar chill?
on the MMR of the max 2nd molar!! (not in the central groove)
T/F? Perm Max Central & lat incisor morphology: The pulp chamber is WIDER mesiodistally than faciolingually for BOTH the central incisor and lingual incisor
True
T/F? Perm Max Central & lat incisor morphology: In both incisors, the M root surface is LESS convex than the D root surface
True
T/F? Perm Max Central & lat incisor morphology: The canal of EACH tooth is nearly always round, gradually tapered, and its foramen is at the apex.
False!
T/F? Perm Max Central & lat incisor morphology: At its cervix, the central incisor’s pulp chamber is nearly the same length mesiodistally and faciolingually
True
T/F? Perm Max Central & lat incisor morphology: The most frequent root and canal morphology of both teeth exhibits a single root with two canals
False
What position yields the smallest measurement of vertical dimension?
Maximum Intercuspation (NOT Edge to Edge) (so Negative vertical dimension!)
Which anatomical structure on the tooth starts to calcify first?
the lingo-incisal edge!
The FREE GINGIVA extends from the _______ to the _______.
Gingival Crest to the Gingival Groove
T/F?:Occlusal Morphology- In pure lateral mandibular movements, the working side condyle only rotates around the vertical axis
False
T/F?:Occlusal Morphology-The cusp, ridge, fossa, and embrasure architecture allows function and eliminates a “locked-in” effect
True
T/F?:Occlusal Morphology-If an anterior open bite (AOB) is present, the posterior teeth guide the mandible
True
T/F?:Occlusal Morphology-The angle at which a tooth is placed depends on the function it needs to perform
True
T/F?:Occlusal Morphology-Escapements help food be processed during mastication
True
What anatomical feature can adversely affect the self-cleaning quality of a dentition in normal alignment?
too great of a contour on the cervical enamel ridge
T/F: Small anterior teeth are better able to accommodate discursive (disoccluding) movements in an arch that has a flatter Curve of Spee
True!
T/F: Posterior teeth with high likelihood of having one canal at an apex include the maxillary first molar (mesiofacial and palatal canals) and maxillary second molar (mesiofacial and palatal canals)
False
T/F: The maxillary first molar distofacial and palatal canals are unlikely to have one canal at the apex
False
T/F: The mandibular incisors are less likely to have one canal at the apex than are the maxillary incisors
False
T/F: In the mandibular teeth, the occurrence of three canals at the apex is very likely
False
T/F: For all maxillary molars, the palatal root is the longest and the distofacial root is the shortest
True!
