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. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III






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






3. 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






4. Incisal 3rd






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






6. II (mal)occlusion






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






8. Vibrational mvmt of a tooth under occ function






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






10. Maxillary - Mandibular - Facial






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






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






13. Retrognathic profile






14. Relationship of the arches bone to bone;






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






16. 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






17. Vertical overlapping






18. Tooth positioned more lingual






19. Maxillary overlap mandibular; whole arch






20. Tongue thrusting; thumb sucking - pacifiers






21. 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






22. Functional occlusion






23. Occlusal guard =






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






25. Prognathic profile






26. Horizontal






27. Below occlusal plane






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






29. Overlap of anterior teeth






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






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






32. Abnormal contacts; occlusal habits - and neuroses






33. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth






34. Maximum interlocking of cusp






35. Tongue thrust or thumb sucking can cause






36. Lateral mvmt results in contacct of all posterior teeth






37. During protrusive occ - ______ is considered undesirable






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






39. Teeth are misaligned when biting together






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






41. 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






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






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






44. Mandibular molars and maxillary molars are even






45. Introduced the concept of codestruction






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






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






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






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






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