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Dentistry Occlusion

Instructions:
  • Answer 50 questions in 15 minutes.
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  • 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. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible






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






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






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






5. #10 & #23






6. Maxillary anterior teeth stick out labially from tongue thrusting






7. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






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






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






10. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract






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






12. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth






13. Excessive deposition of cementum around the apex - due to excessive occlusal forces






14. 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






15. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made






16. Laterally






17. Crowns tipped lingually - roots tipped laterally






18. Mandibular molars and maxillary molars are even






19. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift






20. Habitual - acquired - convenience - intercuspal & static






21. Below occlusal plane






22. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II






23. Mb cusp of max 1st molar-buccal groove of mand 1st molar






24. Starts closer to the posterior of the 1st molar






25. Anterior; no horizontal overlap






26. After periodontal sugery - mobility will ________






27. Mesognathic profile






28. Associated with performance; all contacts during function of the oral cavity






29. Vibrational mvmt of a tooth under occ function






30. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)






31. Abnormal contacts; occlusal habits - and neuroses






32. Anterior or posterior; bilateral or unitlateral - anterior more common






33. Prognathic profile






34. Incisal 3rd






35. Usually indicative of moderate to sever perio and secondary occ trauma






36. Starts around the mesial of the 1st molar






37. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip






38. 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






39. Guidance for protrusive occ should be on the






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






41. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt






42. Tooth extracted






43. Maxillary - Mandibular - Facial






44. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth






45. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus






46. Survival of the dentition despite its deviation from a preconceived hypothetical normal






47. Both sides






48. Tooth positioned more facial






49. Rotated or twisted; rotated mesial or distal






50. Normal contacts between max. and mand. teeth; momentary contacts







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