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. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






2. What is not affected by occ trauma






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






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






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






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






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






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






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






10. Maxillary overlap mandibular; whole arch






11. Mandibular molars more distal than maxillary molars






12. #10 & #23






13. Habitual - acquired - convenience - intercuspal & static






14. Tooth positioned more lingual






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






16. Cusps of maxillary teeth directly over cusps of mandibular teeth






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






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






19. Tongue thrusting; thumb sucking - pacifiers






20. 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






21. Mandible moves to the right or left






22. 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






23. Guidance for protrusive occ should be on the






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






25. 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






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






27. Mesially - Labially






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






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






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






31. Lateral mvmt results in contacct of all posterior teeth






32. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth






33. Primary teeth set ___________________ for permanent






34. Incisal 3rd






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






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






37. Horizontal distance of anterior teeth in crossbite






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






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






40. The side to which the mandible moves(chewing side)






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






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






43. Overlap of anterior teeth






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






45. Prognathic profile






46. Vertical






47. Maximum touching of max and mand






48. II (mal)occlusion






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






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