Test your basic knowledge |

Dentistry Occlusion

Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition






2. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth






3. Retrognathic profile






4. Most common cause is when the maxilla does not grow in proportion to the mandible






5. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






6. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone






7. Maximum touching of max and mand






8. Mesially - Labially






9. Maxillary - Mandibular - Facial






10. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III






11. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced






12. Vertical overlapping






13. Abnormal contacts; occlusal habits - and neuroses






14. Mandibular molars and maxillary molars are even






15. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






16. Vertical






17. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts






18. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship






19. Difference between primary and secondary occ trauma






20. Lateral mvmt results in contacct of all posterior teeth






21. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt






22. Individual teeth from each arch can be involved in ________________ malocclusion






23. The permanent molars erupt posterior to the primary teeth and push them all mesially






24. Mandible moves to the right or left






25. Posterior; no horizontal overlap






26. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






27. #7 - 26 - 27






28. Maxillary-between canines and laterals - mandibular-between canines and 1st molars






29. Mvmt of the mandible in a direction anterior to centric occ






30. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II






31. Cusps of maxillary teeth directly over cusps of mandibular teeth






32. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)






33. Curve spee & wilson - 3-d - not proven






34. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






35. During selective grinding - occlusion should be adjusted In what four relationships






36. Both sides






37. The side to which the mandible moves(chewing side)






38. Max canine occludes with mand. canine and mand. 1st premolar.






39. Selective grinding should always be completed after ______ has been controlled






40. Severe ging inflammation extending into CT attachment - loss of supporting alveolar bone - pregnancy - ortho mvmt - and surgical therapy - may all cause ______






41. Excessive occ force with adequate bone support =






42. Later






43. Horizontal






44. ____ is not a sign of occl trauma






45. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation






46. Middle 3rd






47. Maxillary overlap mandibular; whole arch






48. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






49. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






50. Primary teeth set ___________________ for permanent