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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. Below occlusal plane






2. During a left working movement - the right side is known as the






3. 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






4. Later






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






6. Slight buccal inclination of crown - lingual inclination of root






7. Vibrational mvmt of a tooth under occ function






8. Middle 3rd






9. Maximal intercuspation or contact of the max and mand teeth






10. Primary teeth set ___________________ for permanent






11. Excessive occ force with adequate bone support =






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






13. Lateral mvmt results in contacct of all posterior teeth






14. 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






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






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






17. Abnormal contacts; occlusal habits - and neuroses






18. Mandibular molars more distal than maxillary molars






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






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






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






22. Maximum interlocking of cusp






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






24. Maxillary incisors are are lingual to mandibular incisors






25. Muscles that work the jaw; may become sore due to occ trauma






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






27. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






28. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap






29. What is not affected by occ trauma






30. Guidance for protrusive occ should be on the






31. Overlap of anterior teeth






32. After periodontal sugery - mobility will ________






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






34. Both sides






35. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position






36. Teeth are misaligned when biting together






37. Need tooth to tooth contact on both working and non working sides to func effectively






38. Vertical overlapping






39. Buck teeth are common and are considered






40. Widening of the PDL in areas under pressure results due to






41. Radiographically - the PDL space is wider at the coronal third of the root






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






43. Rotated or twisted; rotated mesial or distal






44. 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






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






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






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






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






49. 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






50. Introduced the concept of codestruction







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