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. Incisal 3rd






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






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






4. Vertical overlapping






5. Spaces between two teeth






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






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






8. Horizontal distance of anterior teeth in crossbite






9. 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






10. Occlusal guard =






11. 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






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






13. Measurement of horizontal overlap w/ probe






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






15. 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






16. Above occlusal plane






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






18. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






19. What is not affected by occ trauma






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






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






22. Rotated or twisted; rotated mesial or distal






23. Abnormal contacts; occlusal habits - and neuroses






24. Class III (mal)occlusion of permanent teeth






25. 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






26. Tooth extracted






27. Mesially - Labially






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






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






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






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






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






33. Mandible moves to the right or left






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






35. Tongue thrust or thumb sucking can cause






36. 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






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






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






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






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






41. Posterior; no horizontal overlap






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






43. Vibrational mvmt of a tooth under occ function






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






45. 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






46. II (mal)occlusion






47. Below occlusal plane






48. When no teeth are contacting on this side






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






50. Mandibular molars and maxillary molars are even