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






2. Rotated or twisted; rotated mesial or distal






3. 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






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






5. Overlap of anterior teeth






6. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






7. Starts closer to premolars






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






9. Tooth extracted






10. Functional occlusion






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






12. What is not affected by occ trauma






13. Maximum interlocking of cusp






14. Primary teeth set ___________________ for permanent






15. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion






16. 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






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






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






19. Crowns tipped lingually - roots tipped laterally






20. ____ is not a sign of occl trauma






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






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






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






24. Tongue thrusting; thumb sucking - pacifiers






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






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






27. 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






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






29. Below occlusal plane






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






31. Horizontal






32. Mandible moves to the right or left






33. Maxillary overlap mandibular; whole arch






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






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






36. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt






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






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






39. Mesially - Labially






40. During protrusive occ - ______ is considered undesirable






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






42. Horizontal distance of anterior teeth in crossbite






43. Laterally






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






45. 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






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






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






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






49. Above occlusal plane






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