CHAPTER 3 Dontal Anatomy REVIEW QUESTIONS F in the blanks by choosing the approp
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Question
CHAPTER 3 Dontal Anatomy REVIEW QUESTIONS F in the blanks by choosing the appropriate terms from the ist below 1. The permanent maxdlary first molars erupt between 6 to 7 yoars of age with root completion between ages 9 to 10 to the primary maxdlary second molars and thus nonsuccedaneous because there are no primary predecessors 2. These toeth are the first permanent teeth to erupt into the 3. The maxdllary first molar is the largest tooth in the mexillary arch, as well as having the largest n the permanent dentition. 4. The three of maxilary first molars are larger, more divergent than those of the second molars, and are more complex in form than those of the maxillary premolars 5. The ,or ingual root, is the largest and longest, inclines ingualy, and eastends beyond the crown outline with a banana-Ike curvature toward the buccal. 6. The puip cavity of a mavillary first molar usually has one 7. From the buccal view, the occlusal outine of a maxlary first molar is divided symmetrically by the or each major cusp. 8. A developmental groove extends between the two buccal cusps, runs apically about haltway to the cementoenamel junction, and is parallel with the long axdis of the tooth, where it can fade out or end in a 9. The s initially with a primary mavxillary second molar, until that tooth is shed; that tooth erupts. later the tooth's contact is with the permanent second premolar atter 10. From the lingual view, since it is the largest cusp on the occtusal surface, the outine is much longer and larger, but the cusp is not as sharo as the distolingual cusp; commonly arising from the lingual surface of this cusp is a fith nontunctioning cusp, the cusp of Carabel. crown buecal groove mesiolingual cusp mesial contact pulp horn buccal pit palatal roots distal maxillary arch Reference Chapter 17, Permanent posterlor teeth. In Fehrenbach MJ, Popowics T:lustrated dental embryology,histology, and anatomy, ed 4,St. Louis, 2016, Saunders. h 2019 Elsevier Inc.All Rights ReseExplanation / Answer
Distal ----------- Primary maxilary irst molar arise distal to second molar Maxillary arch ------- First permanant teeth errupt to maxillary arch Crown ----------- Largest in primary maxillary molar Roots -------- Nerves of tooth largest in maxillary molar Mesolingual cusp ---------- Largest and longest projection Pulp horn ---------- Projection from pulp for each cusp Buccal groove------------ Occulsion outline is symmetrically divided. Buccal pit ---------- Developmental groove end upto buccal pit mesial contact ---------- Contact with primary maxillary secondary molar Palatal ---------- Outline that is much longer and larger