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






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






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






4. Crowns tipped lingually - roots tipped laterally






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






6. Tongue thrusting; thumb sucking - pacifiers






7. Mandibular molars and maxillary molars are even






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






9. 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






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






11. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars






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






13. Later






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






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






16. Class III (mal)occlusion of permanent teeth






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






18. Anterior; no horizontal overlap






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






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






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






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






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






24. 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






25. Slight buccal inclination of crown - lingual inclination of root






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






27. Mandible moves to the right or left






28. Congenitally missing teeth - Impacted teeth & size and shape of muscle and bone






29. Laterally






30. Maximum interlocking of cusp






31. Vibrational mvmt of a tooth under occ function






32. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth






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






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






35. Relationship of the arches bone to bone;






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






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






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






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






40. 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






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






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






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






44. Tooth extracted






45. Maximum touching of max and mand






46. Maxillary overlap mandibular; whole arch






47. Incisal 3rd






48. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






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






50. Relationship of the teeth in opposite arches; static position