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. 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






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






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






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






5. Starts around the mesial of the 1st molar






6. Crowns tipped lingually - roots tipped laterally






7. Starts closer to the posterior of the 1st molar






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






9. Guidance for protrusive occ should be on the






10. 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






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






12. Tongue thrust or thumb sucking can cause






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






14. Vibrational mvmt of a tooth under occ function






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






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






17. Posterior; no horizontal overlap






18. Difference between primary and secondary occ trauma






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






20. Tongue thrusting; thumb sucking - pacifiers






21. 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






22. Vertical overlapping






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






24. Vertical






25. Tooth positioned more facial






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






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






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






29. Rotated or twisted; rotated mesial or distal






30. What is not affected by occ trauma






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






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






33. Tooth extracted






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






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






36. Measurement of horizontal overlap w/ probe






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






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






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






40. Maxillary incisors are are lingual to mandibular incisors






41. Relationship of the arches bone to bone;






42. Tooth positioned more lingual






43. Mesially - Labially






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






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






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






47. Teeth are misaligned when biting together






48. ____ is not a sign of occl trauma






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






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