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. Anterior; no horizontal overlap






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






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






4. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






5. Primary teeth set ___________________ for permanent






6. Maxillary incisors are are lingual to mandibular incisors






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






8. After periodontal sugery - mobility will ________






9. Habitual - acquired - convenience - intercuspal & static






10. Mesially - Labially






11. 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






12. Above occlusal plane






13. Horizontal






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






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






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






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






18. Functional occlusion






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






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






21. 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






22. What is not affected by occ trauma






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






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






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






26. Maximal intercuspation or contact of the max and mand teeth






27. Mandibular molars and maxillary molars are even






28. Mesognathic profile






29. Vertical overlapping






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






31. Tongue thrust or thumb sucking can cause






32. Prognathic profile






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






34. 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






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






36. Horizontal distance of anterior teeth in crossbite






37. Posterior; no horizontal overlap






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






39. 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






40. Overlap of anterior teeth






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






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






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






44. Cervical 3rd






45. Curve of the occlusal plane; from anterior to posterior - increases with age






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






47. Incisal 3rd






48. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






49. 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






50. #10 & #23