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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. Cervical 3rd






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






3. Later






4. Patients show evidence or signs and syptoms of occ disease






5. Abnormal contacts; occlusal habits - and neuroses






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






7. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract






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






9. ____ is not a sign of occl trauma






10. Rotated or twisted; rotated mesial or distal






11. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III






12. Teeth are misaligned when biting together






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






14. Maxillary anterior teeth stick out labially from tongue thrusting






15. Measurement of horizontal overlap w/ probe






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






17. Vibrational mvmt of a tooth under occ function






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






19. Above occlusal plane






20. Maximum touching of max and mand






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






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






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






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






25. Starts around the mesial of the 1st molar






26. 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






27. During protrusive occ - ______ is considered undesirable






28. Tooth positioned more facial






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






30. Horizontal distance of anterior teeth in crossbite






31. Anterior; no horizontal overlap






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






33. 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






34. Overlap of anterior teeth






35. Mandibular molars and maxillary molars are even






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






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






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






39. Horizontal






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






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






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






43. Contact between maxillary incisors does not line up with contact of mandibular incisors






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






45. Relationship of the arches bone to bone;






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






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






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






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






50. Middle 3rd







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