The most constant and valuable trait to differentiate among maxillary first, second and third molars i____________?

Related Mcqs:

1. According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is________________?

   A. 1½ 2 years
   B. 2½ – 3 years
   C. 3-4 years
   D. 3-5 years

2. Crown formation of all permanent teeth except third molars is completed between_____________?

   A. Birth to 8 years
   B. Birth to 12 years
   C. Birth to 6 years
   D. 6 years to 12 years

3. In comparison to maxillary central incisor , Maxillary canine has a height of contour that is______________?

   A. More
   B. Less
   C. Same
   D. Different on different teeth

4. A maxillary right canine may be distinguished from a maxillary left canine because ____________?

   A. The root curves to mesial in the apical 1/3rd
   B. The distal half of canine shows more convexity than the mesical half
   C. Facially the cusp tip is placed distal to Bisecting line
   D. Lingually the cervical line slopes mesially

5. The maxillary lateral incisor is smaller than the maxillary central incisor on all aspects EXCEPT which one of the following______________?

   A. Crown length
   B. Mesiodistal crown width
   C. Faciolingual crown width
   D. Root length

6. Maxillary sinus is described as a four sided pyramid containing base, apex, roof and floor. The apex of maxillary sinus extends________________?

   A. Laterally into zygomatics process of maxilla
   B. Medially into zygomatic process of maxilla
   C. Laterally into lateral nasal wall
   D. Superiorly into floor of orbit

7. Growth of all permanent teeth except last molars is completed by___________?

   A. 6 years
   B. 8 years
   C. 12 years
   D. 17 years

8. First permanent molars begin to calcify at ______________?

   A. 6 months of intra utrerine life
   B. At birth
   C. Before decidous incisors
   D. About 1 year after birth

9. Calcification of all teeth except last molars are completed by____________?

   A. 2 years
   B. 4 years
   C. 6 years
   D. 8 years

10. Which of the following decidous molars bears the greatest resemblance to a premolar _____________?

    A. Maxillary first
    B. Maxillary second
    C. Mandibular first
    D. Mandibular second