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. Primary teeth set ___________________ for permanent






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






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






4. Spaces between two teeth






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






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






7. #10 & #23






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






9. Relationship of the arches bone to bone;






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






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






12. Posterior; no horizontal overlap






13. 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






14. Maxillary - Mandibular - Facial






15. Cervical 3rd






16. Abnormal contacts; occlusal habits - and neuroses






17. Tooth extracted






18. 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






19. Rotated or twisted; rotated mesial or distal






20. Above occlusal plane






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






22. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation






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






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






25. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious






26. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






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






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






29. Teeth are misaligned when biting together






30. Retrognathic profile






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






32. Measurement of horizontal overlap w/ probe






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






34. #7 - 26 - 27






35. Starts closer to premolars






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






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






38. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






39. Vibrational mvmt of a tooth under occ function






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






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






42. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts






43. Functional occlusion






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






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






46. Crowns tipped lingually - roots tipped laterally






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






48. Excessive occ force with adequate bone support =






49. Maxillary overlap mandibular; whole arch






50. Guidance for protrusive occ should be on the