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






2. Buck teeth are common and are considered






3. 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






4. Tongue thrust or thumb sucking can cause






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






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. Abnormal contacts; occlusal habits - and neuroses






8. Horizontal distance of anterior teeth in crossbite






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






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






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






12. Mandible moves to the right or left






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






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






15. Vibrational mvmt of a tooth under occ function






16. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position






17. Posterior; no horizontal overlap






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






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






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






21. Teeth are misaligned when biting together






22. Anterior; no horizontal overlap






23. Rotated or twisted; rotated mesial or distal






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






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






26. 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






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






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






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






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






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






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






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






34. Starts closer to premolars






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






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






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






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






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






40. ____ is not a sign of occl trauma






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






42. 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






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






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






45. Tongue thrusting; thumb sucking - pacifiers






46. 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






47. #10 & #23






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






49. Vertical






50. Both sides