If a permanent first molar is lost, the permanent second molar drifts to the______________?
(A) Buccal side
(B) Distal side
(C) Mesial side
(D) Lingual side
Distobuccal cusp of 27 falls into ______________?
(A) Embrasure of 37 & 38
(B) Embrasure of 36 & 37
(C) Mesial pit of 37
(D) Immediately incisal to cingulam
Maxillary facial and mandibular lingual cusps require sufficient occclusal length and horizontal overlap for_____________?
(A) Esthetics
(B) Centric stability
(C) Chewing efficiency
(D) Soft tissue protection
The premolar alveoli are what shape in cross section_____________?
(A) Rectangular
(B) Triangular
(C) Kidney shaped
(D) Oval
The maxillary teeth which have single antagonist are__________?
(A) Lateral incisors
(B) Permanent canines
(C) Permanent central incisors
(D) Third molars
In normal occlusion , with which grooves / surface of the permanent mandibular first molar does the mesiobuccal cusp of the permanent maxillary first molar occlude______________?
(A) Distobuccal groove
(B) Mesial surface
(C) Mesiobuccal surface
(D) Transverse groove
When a molar has no opposing tooth, it can become_______________?
(A) Extruded
(B) Intruded
(C) Protruded
(D) Retruded
In centric occlusion, the cusp tip of the maxillary canine is in alignment with which mandibular tooth_____________?
(A) Facial embrasure of canine and premolar
(B) incisal embrasure of canine and premolar
(C) Distal ridge of the cusp of mandibular canine
(D) Mesial ridge on the facial cusp of mandibular first premolar
In the intercuspal position, the lingual cusp of maxillary 2nd premolar contacts the______________?
(A) Distal fossa of mandibular 2ndpremolar
(B) Mesial fossa of mandibular 1st molar
(C) Distal marginal ridge of mandibular 2ndmolar
(D) Distal marginal ridge of mandibular 1st premolar
The key to occlusion is_______________?
(A) Maxillary permanent first molar
(B) Maxillary permanent second molar
(C) Maxillary primary first molar
(D) Maxillary primary second molar