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






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






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






4. 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






5. Mesognathic profile






6. Maxillary overlap mandibular; whole arch






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






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






9. Later






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






11. Tongue thrusting; thumb sucking - pacifiers






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






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






14. Retrognathic profile






15. Both sides






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






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






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






19. Maxillary incisors are are lingual to mandibular incisors






20. Starts closer to premolars






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






22. Vibrational mvmt of a tooth under occ function






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






24. Mandibular molars more distal than maxillary molars






25. #10 & #23






26. 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






27. Patients show evidence or signs and syptoms of occ disease






28. 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






29. When no teeth are contacting on this side






30. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






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






32. Maximum touching of max and mand






33. Horizontal






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






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






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






37. Lateral mvmt results in contacct of all posterior teeth






38. Excessive occ force with adequate bone support =






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






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






41. What is not affected by occ trauma






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






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






44. Tooth extracted






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






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






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






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






49. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced






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