Occlusion Flashcards
Ideal class I occlusion involves an important first permanent molar relationship where the mesiobuccal cusp of the maxillary first molar is located within the:
a. mesiobuccal grove of the mandibular first molar
b. distobuccal groove of the mandibular first molar
c. buccal groove of the mandibular second molar
d. mesiobuccal grove of the mandibular second molar
e. distobuccal groove of the mandibular second molar
a
- Where to lingual cusps of maxillary teeth occlude in ideal class I occlusion?
a. in the buccal embrasure space between mandibular teeth
b. in the lingual embrasure space between mandibular teeth
c. in occlusal fossae of mandibular teeth
c
Which of the following teeth are normally occluding with only one other tooth in the opposing arch?
a. #17 & 8
b. #32 & 24
c. #25 & 1
d. #16 & 8
c
Which of the following is TRUE regarding the ideal alignment of teeth within an arch?
a. from the distal view, a line connecting the cusp tips of the maxillary arch of teeth exhibit a slight concavity called a curve of Wilson.
b. the interproximal space between two teeth is also known as the buccal embrasure.
c. lingual embrasures are normally larger than buccal embrasures.
d. the root axis line on the labial of a tooth divides the tooth in half into lingual and labial surfaces.
e. posterior contacts between adjacent teeth are normally slightly to the lingual of the midline buccolingually.
C
(A - maxillary is convex)
(D - divides M and L)
(E - contacts are slightly facial)
In MIP, which two teeth occlude with the maxillary first premolar?
a. mandibular canine and first premolar
b. mandibular first premolar and second premolar
c. mandibular second premolar and first molar
b
In MIP, which two teeth occlude with the mandibular second molar?
a. maxillary first premolar and second premolar
b. maxillary second premolar and first molar
c. maxillary first molar and second molar
c
Which two teeth would occlude with the incisal edge of the right mandibular lateral incisor during protrusion of the mandible?
a. maxillary right and left central incisors
b. maxillary right central and lateral incisors
c. maxillary right lateral incisor and canine
d. maxillary right canine and first premolar
b
In MIP, with which landmark would the lingual cusp of the maxillary second premolar occlude?
a. the mesial marginal ridge of the mand 2nd premolar
b. the mesial fossa of the mand 2nd premolar
c. the distal marginal ridge of the mand 2nd premolar
d. the mesial fossa of the mand 1st molar
c
the lingual cusps of the maxillary premolars are slightly mesial to the crown midline
If this person did not have class I occlusion but had class II, which tooth or teeth would contact the maxillary second premolar?
a. mandibular canine and first premolar
b. mandibular 1st and 2nd premolars
c. mandibular 2nd premolar only
d. mandibular 2nd premolar and 1st molar
e. mandibular 1st molar only
b
class II: where the mandible was positioned one full tooth DISTAL to its class I position)
If this person did not have class I occlusion but had class III, which tooth or teeth would contact the maxillary second premolar?
a. mandibular canine and 1st premolar
b. mandibular 1st and 2nd premolars
c. mandibular 2nd premolar only
d. mandibular 2nd premolar and 1st molar
e. mandibular 1st molar only
e
class III: where the mandible was positioned one full tooth MESIAL to its class I position
Which of the following teeth are normally occluding with only one other tooth int he opposing arch?
a. 17 and 8
b. 32 and 24
c. 25 and 1
d. 16 and 8
c
Which of the following statements is TRUE regarding the ideal alignment of teeth within an arch?
a. form the distal view, a line connecting the cusp tips of the maxillary arch of teeth exhibit a slight concavity called a curve of Wilson.
b. the interproximal space between two teeth is also known as the buccal embrassure.
c. lingual embrasures are noramlly larger than buccal embrasures.
d. the root axis line on the labial of a tooth divides the tooth in half into lingual and labial surfaces.
e. posterior contacts between adjacent teeth are normally lightly to the lingual of the midline buccolingually.
c (larger than buccal/facial embrasures)
In an ideal Class I occlusion, the maxillary canine opposes (occludes with)…
a. the incisal edge of a mandibular lateral incisor
b. both mandibular first and second premolars
c. the distal marginal ridge of a mandibular lateral incisor
d. a mandibular canine and first premolar
e. a mandibular canine and a mandibular lateral incisor
D
- In ideal tooth alignment, what surface of tooth #16 touches tooth #15
a. distal
b. mesial
c. occlusal
d. lingual
e. buccal
B
In ideal occlusion, which (if any) statement is true
a. The incisal edges of maxillary anterior teeth are lingual to the incisal edges of mandibular anterior teeth
b. The buccal surfaces of maxillary posterior teeth are lingual to those in the mandibular arch
c. The lingual cusps of mandibular posterior teeth rest in the occlusal fossae of maxillary teeth
d. The buccal cusps of mandibular posterior teeth rest in occlusal fossae of maxillary teeth
e. All statements are false
D
