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. Tongue thrusting; thumb sucking - pacifiers






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






3. Functional occlusion






4. Abnormal contacts; occlusal habits - and neuroses






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






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






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






8. Primary teeth set ___________________ for permanent






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






10. 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






11. Incisal 3rd






12. Introduced the concept of codestruction






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






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






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






16. 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






17. Starts closer to premolars






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






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






20. 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






21. Guidance for protrusive occ should be on the






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






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






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






25. When no teeth are contacting on this side






26. A continuation of the spee of to extend through the condyle






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






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






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






30. Tooth positioned more lingual






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






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






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






34. Excessive occ force with adequate bone support =






35. 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






36. Maximum touching of max and mand






37. Individual teeth from each arch can be involved in ________________ malocclusion






38. Relationship of the arches bone to bone;






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






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






41. Tooth extracted






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






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






44. Maxillary incisors are are lingual to mandibular incisors






45. 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






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






47. Mesognathic profile






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






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






50. Habitual - acquired - convenience - intercuspal & static