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. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth






2. #7 - 26 - 27






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






4. Mesially - Labially






5. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible






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






7. 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






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






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






10. Retrognathic profile






11. 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






12. Mandibular molars more distal than maxillary molars






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






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






15. Mandible moves to the right or left






16. Buck teeth are common and are considered






17. Measurement of horizontal overlap w/ probe






18. Cervical 3rd






19. Maximum interlocking of cusp






20. Middle 3rd






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






22. Tongue thrusting; thumb sucking - pacifiers






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






24. During protrusive occ - ______ is considered undesirable






25. Tooth positioned more lingual






26. Guidance for protrusive occ should be on the






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






28. 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






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






30. Later






31. Rotated or twisted; rotated mesial or distal






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






33. Crowns tipped lingually - roots tipped laterally






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






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






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






37. Tongue thrust or thumb sucking can cause






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






39. Class III (mal)occlusion of permanent teeth






40. 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






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






42. Growth hormone imbalance that causes the mandible to grow faster than the maxilla(all teeth are in crossbite)






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






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






45. After periodontal sugery - mobility will ________






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






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






48. Excessive occ force with adequate bone support =






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






50. Functional occlusion