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. Mesognathic profile






2. Maximum interlocking of cusp






3. 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






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






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






6. Later






7. 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






8. Maxillary-between canines and laterals - mandibular-between canines and 1st molars






9. Starts around the mesial of the 1st molar






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






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






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






13. Lateral mvmt results in contacct of all posterior teeth






14. Mandible moves to the right or left






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






16. When no teeth are contacting on this side






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






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






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






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






21. Tooth extracted






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






23. Maxillary overlap mandibular; whole arch






24. Overlap of anterior teeth






25. Maxillary - Mandibular - Facial






26. Prognathic profile






27. Vertical






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






29. Excessive occ force with adequate bone support =






30. Buck teeth are common and are considered






31. Measurement of horizontal overlap w/ probe






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






33. Abnormal contacts; occlusal habits - and neuroses






34. 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






35. Spaces between two teeth






36. Mandibular molars and maxillary molars are even






37. ____ is not a sign of occl trauma






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






39. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts






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






41. Below occlusal plane






42. Tongue thrusting; thumb sucking - pacifiers






43. Mandibular molars more distal than maxillary molars






44. During protrusive occ - ______ is considered undesirable






45. Tooth positioned more lingual






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






47. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion






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






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






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