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






2. 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






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






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






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






6. Crowns tipped lingually - roots tipped laterally






7. During a left working movement - the right side is known as the






8. Maxillary anterior teeth stick out labially from tongue thrusting






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






10. Tooth positioned more facial






11. 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






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






13. The permanent molars erupt posterior to the primary teeth and push them all mesially






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






15. Horizontal






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






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






18. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)






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






20. Maximum touching of max and mand






21. 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






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






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






24. Mesognathic profile






25. Mesially - Labially






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






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






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






29. Horizontal distance of anterior teeth in crossbite






30. Vertical overlapping






31. Class III (mal)occlusion of permanent teeth






32. 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






33. Later






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






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






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






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






38. Overlap of anterior teeth






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






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






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






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






43. Contact between maxillary incisors does not line up with contact of mandibular incisors






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






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






46. Above occlusal plane






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






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






49. Max canine occludes with mand. canine and mand. 1st premolar.






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