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






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






3. Anterior; no horizontal overlap






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






5. Horizontal






6. Maximum interlocking of cusp






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






8. Mandibular molars and maxillary molars are even






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






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






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






12. Occlusal guard =






13. Starts closer to the posterior of the 1st molar






14. 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






15. Tongue thrust or thumb sucking can cause






16. 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






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






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






19. Vertical






20. When no teeth are contacting on this side






21. 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






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






23. Habitual - acquired - convenience - intercuspal & static






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






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






26. 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






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






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






29. Difference between primary and secondary occ trauma






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






31. After periodontal sugery - mobility will ________






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






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






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






35. Measurement of horizontal overlap w/ probe






36. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)






37. #10 & #23






38. 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






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






40. Introduced the concept of codestruction






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






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






43. Later






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






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






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






47. Class III (mal)occlusion of permanent teeth






48. Prognathic profile






49. Tooth positioned more lingual






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