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. Maximal intercuspation or contact of the max and mand teeth






2. Rotated or twisted; rotated mesial or distal






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






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






5. #7 - 26 - 27






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






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






8. ____ is not a sign of occl trauma






9. Laterally






10. 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






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






12. Habitual - acquired - convenience - intercuspal & static






13. Lateral mvmt results in contacct of all posterior teeth






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






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






16. Vertical overlapping






17. 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






18. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






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






21. Malocclusion cause excessive incisal or occlusal wear(attrition); teeth continue to erupt in order to occlude with teeth in the opposite arch & roots become exposed






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






23. Maxillary overlap mandibular; whole arch






24. Below occlusal plane






25. II (mal)occlusion






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






27. Tooth extracted






28. During a left working movement - the right side is known as the






29. #10 & #23






30. Tooth positioned more lingual






31. Starts closer to premolars






32. Mandible moves to the right or left






33. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






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






35. Horizontal distance of anterior teeth in crossbite






36. Teeth are misaligned when biting together






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






38. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors






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






40. Mandibular molars more distal than maxillary molars






41. Tongue thrust or thumb sucking can cause






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






43. Functional occlusion






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






45. Anterior; no horizontal overlap






46. Maximum touching of max and mand






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






48. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






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






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