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. Maximum touching of max and mand






2. Starts around the mesial of the 1st molar






3. #10 & #23






4. 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






5. Tooth extracted






6. Mandibular molars more distal than maxillary molars






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






8. Mesognathic profile






9. Vibrational mvmt of a tooth under occ function






10. 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






11. When no teeth are contacting on this side






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






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






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






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






16. Max canine occludes with mand. canine and mand. 1st premolar.






17. Retrognathic profile






18. Rotated or twisted; rotated mesial or distal






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






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






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






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






23. Relationship of the arches bone to bone;






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






25. Functional occlusion






26. Incisal 3rd






27. Primary teeth set ___________________ for permanent






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






29. Teeth are misaligned when biting together






30. Excessive occ force with adequate bone support =






31. Spaces between two teeth






32. 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






33. Maxillary overlap mandibular; whole arch






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






35. Curve of the occlusal plane; from anterior to posterior - increases with age






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






37. Cervical 3rd






38. 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






39. Mandible moves to the right or left






40. Above occlusal plane






41. II (mal)occlusion






42. 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






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






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






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






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






47. Buck teeth are common and are considered






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






49. Crowns tipped lingually - roots tipped laterally






50. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition