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






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






3. Difference between primary and secondary occ trauma






4. #10 & #23






5. Above occlusal plane






6. Maximum touching of max and mand






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






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






9. When no teeth are contacting on this side






10. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






11. Primary teeth set ___________________ for permanent






12. Maxillary anterior teeth stick out labially from tongue thrusting






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






14. 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






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






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






17. Class III (mal)occlusion of permanent teeth






18. Tooth extracted






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






20. Middle 3rd






21. Guidance for protrusive occ should be on the






22. Introduced the concept of codestruction






23. Excessive occ force with adequate bone support =






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






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






26. Horizontal






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






28. Maxillary incisors are are lingual to mandibular incisors






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






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






31. Vertical






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






33. Spaces between two teeth






34. 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






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






36. Below occlusal plane






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






38. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite






39. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






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






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






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






43. Laterally






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






45. Normal contacts between max. and mand. teeth; momentary contacts






46. Tooth positioned more lingual






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






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






49. Lateral mvmt results in contacct of all posterior teeth






50. ____ is not a sign of occl trauma