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






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






3. Selective grinding should always be completed after ______ has been controlled






4. When no teeth are contacting on this side






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






6. Vertical






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






8. Mandible moves to the right or left






9. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt






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






11. Relationship of the arches bone to bone;






12. Vibrational mvmt of a tooth under occ function






13. Incisal 3rd






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






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






16. ____ is not a sign of occl trauma






17. Middle 3rd






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






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






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






21. Starts closer to premolars






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






23. 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






24. Lateral mvmt results in contacct of all posterior teeth






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






26. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






27. Measurement of horizontal overlap w/ probe






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






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






30. Primary teeth set ___________________ for permanent






31. Posterior; no horizontal overlap






32. Both sides






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






34. 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






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






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






37. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship






38. Rotated or twisted; rotated mesial or distal






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






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






41. Excessive occ force with adequate bone support =






42. Cervical 3rd






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






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






45. 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






46. 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






47. Maxillary overlap mandibular; whole arch






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






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






50. Horizontal distance of anterior teeth in crossbite