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. ____ is not a sign of occl trauma






2. Abnormal contacts; occlusal habits - and neuroses






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






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






5. 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






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






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






8. Middle 3rd






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






10. Prognathic profile






11. Maximal intercuspation or contact of the max and mand teeth






12. Buck teeth are common and are considered






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






14. Later






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






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






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






18. Primary teeth set ___________________ for permanent






19. Habitual - acquired - convenience - intercuspal & static






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






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






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






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






24. Relationship of the teeth in opposite arches; static position






25. Most common cause is when the maxilla does not grow in proportion to the mandible






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






27. Functional occlusion






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






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






30. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II






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






32. 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






33. Overlap of anterior teeth






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






35. Mandibular molars and maxillary molars are even






36. #10 & #23






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






38. Below occlusal plane






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






40. After periodontal sugery - mobility will ________






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






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






43. Lateral mvmt results in contacct of all posterior teeth






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






45. 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






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






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






48. Rotated or twisted; rotated mesial or distal






49. Tooth extracted






50. Above occlusal plane