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






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






3. Introduced the concept of codestruction






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






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






6. Occlusal guard =






7. Survival of the dentition despite its deviation from a preconceived hypothetical normal






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






9. Spaces between two teeth






10. Excessive occ force with adequate bone support =






11. Vertical






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






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






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






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






16. Teeth are misaligned when biting together






17. 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






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






19. Buck teeth are common and are considered






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






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






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






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






24. Primary teeth set ___________________ for permanent






25. 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






26. When no teeth are contacting on this side






27. 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






28. Laterally






29. Below occlusal plane






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






31. 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






32. Relationship of the arches bone to bone;






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






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






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






36. Normal contacts between max. and mand. teeth; momentary contacts






37. Tooth extracted






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






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






40. Above occlusal plane






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






42. Mandibular molars more mesial than maxillary molars (most children)






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






44. Retrognathic profile






45. Vibrational mvmt of a tooth under occ function






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






47. 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






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






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






50. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces