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. Excessive occ force with adequate bone support =






2. Introduced the concept of codestruction






3. Mesognathic profile






4. 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






5. Maxillary anterior teeth stick out labially from tongue thrusting






6. Tooth positioned more facial






7. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






8. 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






9. Mandibular molars more distal than maxillary molars






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






11. Difference between primary and secondary occ trauma






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






13. ____ is not a sign of occl trauma






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






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






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






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






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






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






20. 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






21. Tongue thrust or thumb sucking can cause






22. Primary teeth set ___________________ for permanent






23. Excessive deposition of cementum around the apex - due to excessive occlusal forces






24. 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






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






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






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






28. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)






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






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






31. 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






32. Mesially - Labially






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






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






35. Below occlusal plane






36. Starts around the mesial of the 1st molar






37. Patients show evidence or signs and syptoms of occ disease






38. Starts closer to premolars






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






40. What is not affected by occ trauma






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






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






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






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






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






46. During protrusive occ - ______ is considered undesirable






47. Cervical 3rd






48. Tooth positioned more lingual






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






50. Tooth extracted