A. Maxillary roots are inclined distally where as Mandibular roots are inclined mesially
B. Maxillary molars are buccally inclined and Mandibular molars are inclined lingually
C. Buccal cusps of lower and lingual cusps of upper are the functional cusp
D. All of the above
Related Mcqs:
- While charting the dentition of a child, the pedodontist finds that the following teeth are present in all the four quadrants; permanent central incisor , permanent lateral incisor , decidous cuspid , decidous first molar, decidous 2nd molar and permanent 1st molar. The eruptive pattern may be considered most nearly normal for a child aged_____________?
A. 3-6 years
B. 7-10 years
C. 11-14 years
D. 15- 18 years - Porcelain denture teeth________________?
A. Have a higher coefficient of thermal expansion than acrylic teeth:
B. Have a lower abrasion resistance than enamel
C. Should be used where the inter dental clearance is small
D. Have a higher abrasion resistance than gold - The permanent mandibular second molar differs from the permanent mandibular first molar in number of ______________?
A. Cusps
B. Roots
C. Lingual grooves
D. Marginal ridges - 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 - 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 - Which of the following is true of permanent first molar’s occlusal surface_____________?
A. Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves
B. Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves
C. Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars
D. All of the above - On which of the following permanent teeth is it most difficult to distinguish between mesial and distal aspects ?
A. Maxillary central incisor
B. Mandibular central incisor
C. Mandibular lateral incisor
D. Mandibular second premolar - Dentin islands are frequently found in the root canals of which of the following permanent teeth ?
A. Maxillary lateral incisor & mandibular canine
B. Maxillary 2nd premolar & maxillary 1st molar
C. Maxillary 2nd premolar & mandibular canine
D. Maxillary 1st molar & mandibular 2nd premolar - Mesiolingual grooves may be found on which of the following permanent teeth ______________?
A. Mandibular second molars
B. Mandibular first premolars
C. Maxillary first molars
D. Maxillary canines - Which of the following permanent teeth is usually bilaterally symmetric when viewed labially and incissaly ______________?
A. Mandibular lateral incisor
B. Mandibular canine
C. Mandibular central incisor
D. Maxillary central incisor
