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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. Incisal 3rd






2. II (mal)occlusion






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






4. Maxillary overlap mandibular; whole arch






5. Both sides






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






7. Abnormal contacts; occlusal habits - and neuroses






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






9. 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






10. 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






11. Tooth positioned more lingual






12. Maxillary incisors are are lingual to mandibular incisors






13. Mandibular molars more distal than maxillary molars






14. Maxillary - Mandibular - Facial






15. Horizontal






16. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)






17. 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






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






19. When one tooth hits before all others when closing teeth together(may cause TMJ problems)






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






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






22. 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






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






24. Later






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






26. Maximum interlocking of cusp






27. When no teeth are contacting on this side






28. Vibrational mvmt of a tooth under occ function






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






30. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces






31. Below occlusal plane






32. 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






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






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






35. #10 & #23






36. Mesognathic profile






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






38. Occlusal guard =






39. ____ is not a sign of occl trauma






40. 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






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






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






43. Maxillary anterior teeth stick out labially from tongue thrusting






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






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






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






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






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






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






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







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