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






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






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






4. 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






5. Mandibular molars more mesial than maxillary molars (most children)






6. Abnormal contacts; occlusal habits - and neuroses






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






8. Mobility - migration - pain - premature contact - widening of PDL - parafuntional habits - TMJ problems - all result in _________






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






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






11. The way you normally bite your teeth together when not chewing






12. Tooth positioned more lingual






13. Mandibular molars more distal than maxillary molars






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






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






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






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






18. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






19. Starts around the mesial of the 1st molar






20. Mandible moves to the right or left






21. Anterior; no horizontal overlap






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






23. Functional occlusion






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






25. Maxillary anterior teeth stick out labially from tongue thrusting






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






27. Starts closer to premolars






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






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






30. Later






31. Maxillary - Mandibular - Facial






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






33. Rotated or twisted; rotated mesial or distal






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






35. Vibrational mvmt of a tooth under occ function






36. When no teeth are contacting on this side






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






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






39. Lateral mvmt results in contacct of all posterior teeth






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






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






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






43. Excessive occ force with adequate bone support =






44. Guidance for protrusive occ should be on the






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






46. 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






47. Tongue thrust or thumb sucking can cause






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






49. II (mal)occlusion






50. Occlusal guard =







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