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. Introduced the concept of codestruction






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






3. Measurement of horizontal overlap w/ probe






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






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






6. Incisal 3rd






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






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






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






10. Later






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






12. #7 - 26 - 27






13. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






14. 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






15. During protrusive occ - ______ is considered undesirable






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






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






18. Associated with performance; all contacts during function of the oral cavity






19. Maxillary incisors are are lingual to mandibular incisors






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






21. When one tooth hits before all others when closing teeth together(may cause TMJ problems)






22. Maxillary overlap mandibular; whole arch






23. Functional occlusion






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






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






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






27. Lateral mvmt results in contacct of all posterior teeth






28. Spaces between two teeth






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






30. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip






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






32. If the mandible moves to the left - the mvmt is known as a left working movement






33. Habitual - acquired - convenience - intercuspal & static






34. Mesially - Labially






35. 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






36. Tooth positioned more facial






37. Class III (mal)occlusion of permanent teeth






38. Posterior; no horizontal overlap






39. What is not affected by occ trauma






40. Both sides






41. Crowns tipped lingually - roots tipped laterally






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






43. Guidance for protrusive occ should be on the






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






45. Occlusal guard =






46. Excessive occ force with adequate bone support =






47. Maximum touching of max and mand






48. Overlap of anterior teeth






49. 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






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