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. When no teeth are contacting on this side






2. Later






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






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






5. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






6. Tongue thrust or thumb sucking can cause






7. Maximum touching of max and mand






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






9. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






10. Posterior; no horizontal overlap






11. 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






12. 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






13. Cervical 3rd






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






15. Middle 3rd






16. Retrognathic profile






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






18. Rotated or twisted; rotated mesial or distal






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






20. Incisal 3rd






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






22. Introduced the concept of codestruction






23. Class III (mal)occlusion of permanent teeth






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






25. Relationship of the arches bone to bone;






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






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






28. Abnormal contacts; occlusal habits - and neuroses






29. Vibrational mvmt of a tooth under occ function






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






31. Above occlusal plane






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






33. Maxillary incisors are are lingual to mandibular incisors






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






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






36. 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






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






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






39. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






40. Mandibular molars and maxillary molars are even






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






42. Occlusal guard =






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






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






45. Crowns tipped lingually - roots tipped laterally






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






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






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






49. Anterior; no horizontal overlap






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