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






2. Middle 3rd






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






4. Maximum interlocking of cusp






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






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






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






8. Mandibular molars more distal than maxillary molars






9. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position






10. Maximum touching of max and mand






11. Vertical






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






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






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






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






16. Incisal 3rd






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






18. Maxillary anterior teeth stick out labially from tongue thrusting






19. Starts around the mesial of the 1st molar






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






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






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






23. What is not affected by occ trauma






24. ____ is not a sign of occl trauma






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






26. #7 - 26 - 27






27. Vertical overlapping






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






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






30. 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






31. Both sides






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






33. Anterior; no horizontal overlap






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






35. Lateral mvmt results in contacct of all posterior teeth






36. Tooth extracted






37. 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






38. During protrusive occ - ______ is considered undesirable






39. Maxillary overlap mandibular; whole arch






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






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






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






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






44. Teeth are misaligned when biting together






45. Tongue thrust or thumb sucking can cause






46. Excessive occ force with adequate bone support =






47. Crowns tipped lingually - roots tipped laterally






48. Maxillary incisors are are lingual to mandibular incisors






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






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