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 way you normally bite your teeth together when not chewing






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






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






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






5. Tooth positioned more facial






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






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






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






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






10. Abnormal contacts; occlusal habits - and neuroses






11. During protrusive occ - ______ is considered undesirable






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






13. Starts around the mesial of the 1st molar






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






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






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






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






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






19. Mandibular molars and maxillary molars are even






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






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






22. Mesially - Labially






23. Starts closer to premolars






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






25. 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






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






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






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






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






30. 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






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






32. Mandible moves to the right or left






33. Vertical overlapping






34. Cervical 3rd






35. 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






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






37. Patients show evidence or signs and syptoms of occ disease






38. Maxillary anterior teeth stick out labially from tongue thrusting






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






40. When no teeth are contacting on this side






41. Vertical






42. Tooth extracted






43. Anterior; no horizontal overlap






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






45. Laterally






46. Individual teeth from each arch can be involved in ________________ malocclusion






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






48. Posterior; no horizontal overlap






49. Rotated or twisted; rotated mesial or distal






50. Difference between primary and secondary occ trauma