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-between canines and laterals - mandibular-between canines and 1st molars






2. Survival of the dentition despite its deviation from a preconceived hypothetical normal






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






4. Anterior; no horizontal overlap






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






6. Tooth positioned more lingual






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






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






9. When no teeth are contacting on this side






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






11. Guidance for protrusive occ should be on the






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






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






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






15. Mandibular molars more distal than maxillary molars






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






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






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






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






20. II (mal)occlusion






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






22. Excessive occ force with adequate bone support =






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






24. Horizontal distance of anterior teeth in crossbite






25. 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






26. 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






27. Rotated or twisted; rotated mesial or distal






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






29. Later






30. 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






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






32. Horizontal






33. #10 & #23






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






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






36. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip






37. Mandibular molars and maxillary molars are even






38. 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






39. Below occlusal plane






40. #7 - 26 - 27






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






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






43. Spaces between two teeth






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






45. Starts around the mesial of the 1st molar






46. Introduced the concept of codestruction






47. Maximum touching of max and mand






48. Maxillary - Mandibular - Facial






49. ____ is not a sign of occl trauma






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