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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. Muscles that work the jaw; may become sore due to occ trauma






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






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






4. The tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus






5. II (mal)occlusion






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






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






8. 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






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






10. Teeth are misaligned when biting together






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






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






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






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






15. Mvmt of the mandible in a direction anterior to centric occ






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






17. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






18. Posterior; no horizontal overlap






19. Retrognathic profile






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






21. Most retruded position of the mandible in relation to the maxilla From which lateral mvmts of the jaw can be made






22. ____ is not a sign of occl trauma






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






24. Both sides






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






26. During protrusive occ - ______ is considered undesirable






27. Mesially - Labially






28. Cervical 3rd






29. Above occlusal plane






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






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






32. #10 & #23






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






34. Below occlusal plane






35. Tongue thrusting; thumb sucking - pacifiers






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






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






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






39. Lateral mvmt results in contacct of all posterior teeth






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






41. Guidance for protrusive occ should be on the






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






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






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






45. Later






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






47. 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






48. When no teeth are contacting on this side






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






50. Mandible moves to the right or left







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