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. Maxillary anterior teeth stick out labially from tongue thrusting






2. 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






3. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






4. Maximum interlocking of cusp






5. Tongue thrusting; thumb sucking - pacifiers






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






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






8. Overlap of anterior teeth






9. Horizontal






10. Tongue thrust or thumb sucking can cause






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






12. Maxillary incisors are are lingual to mandibular incisors






13. Below occlusal plane






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






15. Mandibular molars and maxillary molars are even






16. Max canine occludes with mand. canine and mand. 1st premolar.






17. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II






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






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






20. Mvmt of the mandible in a direction anterior to centric occ






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






22. Anterior; no horizontal overlap






23. Incisal 3rd






24. II (mal)occlusion






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






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






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






28. 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






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






30. Lateral mvmt results in contacct of all posterior teeth






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






32. #7 - 26 - 27






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






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






35. ____ is not a sign of occl trauma






36. Primary teeth set ___________________ for permanent






37. Guidance for protrusive occ should be on the






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






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






40. Crowns tipped lingually - roots tipped laterally






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






42. Mesognathic profile






43. Teeth are misaligned when biting together






44. Spaces between two teeth






45. Functional occlusion






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






47. When no teeth are contacting on this side






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






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






50. Lateral mvmt results in contact btwn the max and mand canines