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






2. After periodontal sugery - mobility will ________






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






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






5. Malposition - crowded anterior teeth - protruded or retruded max incisors - anterior/posterior crossbite - mesial drift






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






7. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible






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






9. 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






10. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






13. The way you normally bite your teeth together when not chewing






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






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






16. Associated with performance; all contacts during function of the oral cavity






17. Occlusal guard =






18. Mandibular molars more distal than maxillary molars






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






20. Maximum interlocking of cusp






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






22. 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






23. Horizontal distance of anterior teeth in crossbite






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






25. Mesognathic profile






26. 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






27. Vertical






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






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






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






31. Habitual - acquired - convenience - intercuspal & static






32. Middle 3rd






33. Incisal 3rd






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






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






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






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






38. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III






39. Above occlusal plane






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






41. Excessive occ force with adequate bone support =






42. Maximum touching of max and mand






43. Primary teeth set ___________________ for permanent






44. Relationship of the arches bone to bone;






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






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






47. Tongue thrust or thumb sucking can cause






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






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






50. Measurement of horizontal overlap w/ probe