Test your basic knowledge |

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. Habitual - acquired - convenience - intercuspal & static






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






3. Difference between primary and secondary occ trauma






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






5. Maximum interlocking of cusp






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






7. Mvmt of the mandible in a direction anterior to centric occ






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






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






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






11. Occlusal guard =






12. Lateral mvmt results in contacct of all posterior teeth






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






14. Rotated or twisted; rotated mesial or distal






15. Prognathic profile






16. Associated with performance; all contacts during function of the oral cavity






17. After periodontal sugery - mobility will ________






18. Both sides






19. Maxillary overlap mandibular; whole arch






20. Horizontal






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






22. Vibrational mvmt of a tooth under occ function






23. II (mal)occlusion






24. Horizontal distance of anterior teeth in crossbite






25. Mandibular molars and maxillary molars are even






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






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






28. Spaces between two teeth






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






30. What is not affected by occ trauma






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






32. Vertical overlapping






33. 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






34. Above occlusal plane






35. 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






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






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






38. 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






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






40. #7 - 26 - 27






41. Anterior; no horizontal overlap






42. 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






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






44. Tooth extracted






45. Middle 3rd






46. Primary teeth set ___________________ for permanent






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






48. During protrusive occ - ______ is considered undesirable






49. 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






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