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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. Maximum interlocking of cusp






2. Tongue thrust or thumb sucking can cause






3. Mesially - Labially






4. Tooth extracted






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






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






7. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus






8. Vertical overlapping






9. Horizontal distance of anterior teeth in crossbite






10. Tooth positioned more lingual






11. Crowns tipped lingually - roots tipped laterally






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






13. Maxillary incisors are are lingual to mandibular incisors






14. Incisal 3rd






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






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






17. Class III (mal)occlusion of permanent teeth






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






19. A continuation of the spee of to extend through the condyle






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






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






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






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






24. Mesognathic profile






25. Prognathic profile






26. 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






27. Mandibular molars more distal than maxillary molars






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






29. Malocclusion cause excessive incisal or occlusal wear(attrition); teeth continue to erupt in order to occlude with teeth in the opposite arch & roots become exposed






30. #7 - 26 - 27






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






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






33. Maximum touching of max and mand






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






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






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






37. Maxillary overlap mandibular; whole arch






38. Excessive occ force with adequate bone support =






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






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






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






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






43. 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






44. Tongue thrusting; thumb sucking - pacifiers






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






46. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






47. Cervical 3rd






48. Below occlusal plane






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






50. Functional occlusion







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