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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. Vertical overlapping






2. 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






3. Mandibular molars and maxillary molars are even






4. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars






5. When no teeth are contacting on this side






6. During protrusive occ - ______ is considered undesirable






7. Rotated or twisted; rotated mesial or distal






8. Anterior; no horizontal overlap






9. Overlap of anterior teeth






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






11. If the mandible moves to the left - the mvmt is known as a left working movement






12. Relationship of the teeth in opposite arches; static position






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






14. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion






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






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






17. What is not affected by occ trauma






18. 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






19. Buck teeth are common and are considered






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






21. Functional occlusion






22. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite






23. Curve of the occlusal plane; from anterior to posterior - increases with age






24. Later






25. Incisal 3rd






26. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)






27. 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






28. Mesognathic profile






29. Maximum touching of max and mand






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






31. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious






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






33. Mesially - Labially






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






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






36. Tongue thrusting; thumb sucking - pacifiers






37. Lateral mvmt results in contact btwn the max and mand canines






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






39. Starts around the mesial of the 1st molar






40. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors






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






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






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






44. Horizontal






45. Prognathic profile






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






47. Horizontal distance of anterior teeth in crossbite






48. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition






49. Crowns tipped lingually - roots tipped laterally






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







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