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. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)






2. Maxillary incisors are are lingual to mandibular incisors






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






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






5. 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






6. Excessive occ force with adequate bone support =






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






8. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars






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






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






11. Occlusal guard =






12. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






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






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






15. Posterior; no horizontal overlap






16. Maxillary anterior teeth stick out labially from tongue thrusting






17. Maxillary - Mandibular - Facial






18. 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






19. Rotated or twisted; rotated mesial or distal






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






21. 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






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






23. 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






24. II (mal)occlusion






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






26. Need tooth to tooth contact on both working and non working sides to func effectively






27. Spaces between two teeth






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






29. Anterior; no horizontal overlap






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






31. 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






32. Functional occlusion






33. When no teeth are contacting on this side






34. #10 & #23






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






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






37. ____ is not a sign of occl trauma






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






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






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






41. Tooth positioned more lingual






42. Horizontal






43. Mesially - Labially






44. After periodontal sugery - mobility will ________






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






46. Above occlusal plane






47. 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






48. #7 - 26 - 27






49. 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






50. Overlap of anterior teeth