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. Middle 3rd






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






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






4. Lateral mvmt results in contacct of all posterior teeth






5. Mesially - Labially






6. Tooth positioned more lingual






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






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






9. Later






10. #10 & #23






11. Class III (mal)occlusion of permanent teeth






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






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






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






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






16. Mb cusp of max 1st molar-buccal groove of mand 1st molar






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






18. Tooth positioned more facial






19. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus






20. Starts closer to premolars






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






22. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






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






24. Overlap of anterior teeth






25. After periodontal sugery - mobility will ________






26. Starts around the mesial of the 1st molar






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






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






29. Difference between primary and secondary occ trauma






30. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts






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






32. 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






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






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






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






36. Guidance for protrusive occ should be on the






37. Teeth are misaligned when biting together






38. Horizontal distance of anterior teeth in crossbite






39. Functional occlusion






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






41. The permanent molars erupt posterior to the primary teeth and push them all mesially






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






43. Crowns tipped lingually - roots tipped laterally






44. 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






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






46. Mesognathic profile






47. Introduced the concept of codestruction






48. During protrusive occ - ______ is considered undesirable






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






50. Mandible moves to the right or left