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. Abnormal contacts; occlusal habits - and neuroses






2. Tooth extracted






3. Guidance for protrusive occ should be on the






4. Primary teeth set ___________________ for permanent






5. Horizontal distance of anterior teeth in crossbite






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






7. 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






8. Tooth positioned more lingual






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






10. Difference between primary and secondary occ trauma






11. Functional occlusion






12. #7 - 26 - 27






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






14. Tooth positioned more facial






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






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






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






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






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






20. Laterally






21. 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






22. Maximum interlocking of cusp






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






24. 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






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






26. 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






27. 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






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






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






30. Starts around the mesial of the 1st molar






31. Later






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






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






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






35. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)






36. Teeth are misaligned when biting together






37. 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






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






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






40. Horizontal






41. Associated with performance; all contacts during function of the oral cavity






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






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






44. Cervical 3rd






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






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






47. Mesognathic profile






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






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






50. Starts closer to premolars