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






2. Difference between primary and secondary occ trauma






3. Maxillary incisors are are lingual to mandibular incisors






4. Maximum touching of max and mand






5. Starts around the mesial of the 1st molar






6. 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






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






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






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






10. Above occlusal plane






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






12. Laterally






13. Tongue thrusting; thumb sucking - pacifiers






14. Rotated or twisted; rotated mesial or distal






15. During protrusive occ - ______ is considered undesirable






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






17. Excessive deposition of cementum around the apex - due to excessive occlusal forces






18. After periodontal sugery - mobility will ________






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






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






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






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






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






24. Starts closer to the posterior of the 1st molar






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






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






27. 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






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






29. Abnormal contacts; occlusal habits - and neuroses






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






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






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






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






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






35. Maxillary anterior teeth stick out labially from tongue thrusting






36. Horizontal distance of anterior teeth in crossbite






37. Prognathic profile






38. Starts closer to premolars






39. 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






40. Tooth positioned more facial






41. Crowns tipped lingually - roots tipped laterally






42. Vibrational mvmt of a tooth under occ function






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






44. Both sides






45. Vertical overlapping






46. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






48. Teeth are misaligned when biting together






49. #7 - 26 - 27






50. Horizontal







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