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. Starts closer to the posterior of the 1st molar






2. Cervical 3rd






3. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth






4. Class III (mal)occlusion of permanent teeth






5. Below occlusal plane






6. #7 - 26 - 27






7. Tooth positioned more facial






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






9. Buck teeth are common and are considered






10. Maximum interlocking of cusp






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






12. Starts closer to premolars






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






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






15. Middle 3rd






16. Mandibular molars more distal than maxillary molars






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






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






19. #10 & #23






20. Starts around the mesial of the 1st molar






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






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






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






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






25. 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






26. Maxillary incisors are are lingual to mandibular incisors






27. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






28. Maxillary - Mandibular - Facial






29. 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






30. During selective grinding - occlusion should be adjusted In what four relationships






31. Anterior; no horizontal overlap






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






33. Horizontal distance of anterior teeth in crossbite






34. Functional occlusion






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






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






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






38. Difference between primary and secondary occ trauma






39. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces






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






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






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






43. 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






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






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






46. Lateral mvmt results in contacct of all posterior teeth






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






48. 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






49. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition






50. Horizontal