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. Maxillary overlap mandibular; whole arch






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






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






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






5. Middle 3rd






6. Vertical overlapping






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






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






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






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






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






12. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)






13. Mandible moves to the right or left






14. Mandibular molars more distal than maxillary molars






15. Habitual - acquired - convenience - intercuspal & static






16. 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






17. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made






18. 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






19. Prognathic profile






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






21. Primary teeth set ___________________ for permanent






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






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






24. Maxillary anterior teeth stick out labially from tongue thrusting






25. Horizontal distance of anterior teeth in crossbite






26. ____ is not a sign of occl trauma






27. Occlusal guard =






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






29. Maxillary - Mandibular - Facial






30. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






31. 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






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






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






34. Tooth positioned more lingual






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






36. Functional occlusion






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






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






39. Later






40. Retrognathic profile






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






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






43. Overlap of anterior teeth






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






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






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






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






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






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






50. Maximum interlocking of cusp