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. Tongue thrusting; thumb sucking - pacifiers






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






3. Difference between primary and secondary occ trauma






4. Later






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






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






7. 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






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






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






10. Abnormal contacts; occlusal habits - and neuroses






11. Spaces between two teeth






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






13. Horizontal






14. Mesially - Labially






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






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






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






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






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






20. #7 - 26 - 27






21. Laterally






22. Functional occlusion






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






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






25. Overlap of anterior teeth






26. Maximum touching of max and mand






27. Starts closer to premolars






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






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






30. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






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






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






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






34. Incisal 3rd






35. #10 & #23






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






37. 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






38. Prognathic profile






39. Tongue thrust or thumb sucking can cause






40. Mandible moves to the right or left






41. Guidance for protrusive occ should be on the






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






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






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






45. ____ is not a sign of occl trauma






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






47. 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






48. 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






49. 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






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