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 facial






2. Middle 3rd






3. 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






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






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






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






7. Cervical 3rd






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






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






10. 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






11. Starts closer to the posterior of the 1st molar






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






13. Maximum interlocking of cusp






14. The permanent molars erupt posterior to the primary teeth and push them all mesially






15. Tooth extracted






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






17. Anterior; no horizontal overlap






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






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






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






21. Overlap of anterior teeth






22. When no teeth are contacting on this side






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






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






25. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract






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






27. Below occlusal plane






28. Anterior or posterior; bilateral or unitlateral - anterior more common






29. Class III (mal)occlusion of permanent teeth






30. #10 & #23






31. Teeth are misaligned when biting together






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






33. #7 - 26 - 27






34. ____ is not a sign of occl trauma






35. Rotated or twisted; rotated mesial or distal






36. Mandible moves to the right or left






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






38. Maxillary anterior teeth stick out labially from tongue thrusting






39. Horizontal






40. 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






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






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






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






44. Tooth positioned more lingual






45. Starts closer to premolars






46. 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






47. Incisal 3rd






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






49. Both sides






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