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. Later






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






3. When no teeth are contacting on this side






4. Incisal 3rd






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






6. Prognathic profile






7. Tooth positioned more lingual






8. Both sides






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






10. Crowns tipped lingually - roots tipped laterally






11. Anterior; no horizontal overlap






12. Tongue thrust or thumb sucking can cause






13. Starts around the mesial of the 1st molar






14. 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






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






16. Retrognathic profile






17. Class III (mal)occlusion of permanent teeth






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






19. 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






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






21. Muscles that work the jaw; may become sore due to occ trauma






22. What is not affected by occ trauma






23. 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






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






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






26. #7 - 26 - 27






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






28. Difference between primary and secondary occ trauma






29. Buck teeth are common and are considered






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






31. Habitual - acquired - convenience - intercuspal & static






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






33. During protrusive occ - ______ is considered undesirable






34. Spaces between two teeth






35. Lateral mvmt results in contacct of all posterior teeth






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






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






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






39. Functional occlusion






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






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






42. Maxillary - Mandibular - Facial






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






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






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






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






47. Vibrational mvmt of a tooth under occ function






48. 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






49. Overlap of anterior teeth






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