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. Tooth positioned more lingual






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






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






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






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






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






7. Mandible moves to the right or left






8. 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






9. Retrognathic profile






10. Contact between maxillary incisors does not line up with contact of mandibular incisors






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






12. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt






13. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)






14. Above occlusal plane






15. 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






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






17. Later






18. 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






19. 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






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






21. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






22. Measurement of horizontal overlap w/ probe






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






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






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






26. Spaces between two teeth






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






28. Rotated or twisted; rotated mesial or distal






29. Relationship of the arches bone to bone;






30. #10 & #23






31. Mesognathic profile






32. 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






33. Radiographically - the PDL space is wider at the coronal third of the root






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






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






36. Vibrational mvmt of a tooth under occ function






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






38. Primary teeth set ___________________ for permanent






39. Maxillary overlap mandibular; whole arch






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






41. Guidance for protrusive occ should be on the






42. After periodontal sugery - mobility will ________






43. What is not affected by occ trauma






44. Tooth positioned more facial






45. Maxillary - Mandibular - Facial






46. Both sides






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






48. Class III (mal)occlusion of permanent teeth






49. #7 - 26 - 27






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