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. During protrusive occ - ______ is considered undesirable






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






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






4. Buck teeth are common and are considered






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






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






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






8. Measurement of horizontal overlap w/ probe






9. 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






10. Incisal 3rd






11. Primary teeth set ___________________ for permanent






12. Tooth positioned more facial






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






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






15. Middle 3rd






16. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






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






18. What is not affected by occ trauma






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






20. Normal contacts between max. and mand. teeth; momentary contacts






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






22. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






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






25. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position






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






27. Mesognathic profile






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






29. Rotated or twisted; rotated mesial or distal






30. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






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






32. Vibrational mvmt of a tooth under occ function






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






34. 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






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






36. Crowns tipped lingually - roots tipped laterally






37. Spaces between two teeth






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






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






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






41. 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






42. Habitual - acquired - convenience - intercuspal & static






43. Relationship of the arches bone to bone;






44. Cervical 3rd






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






46. Vertical






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






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






49. Mesially - Labially






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