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






2. Cusps of maxillary teeth directly over cusps of mandibular teeth






3. Maximum interlocking of cusp






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






5. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






6. When no teeth are contacting on this side






7. Occlusal guard =






8. Starts around the mesial of the 1st molar






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






10. Vibrational mvmt of a tooth under occ function






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






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






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






14. Tooth extracted






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






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






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






18. The side to which the mandible moves(chewing side)






19. Rotated or twisted; rotated mesial or distal






20. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth






21. 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






22. Buck teeth are common and are considered






23. 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






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






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






26. Excessive occ force with adequate bone support =






27. Associated with performance; all contacts during function of the oral cavity






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






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






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






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






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






33. Tooth positioned more lingual






34. Guidance for protrusive occ should be on the






35. Mandibular molars more distal than maxillary molars






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






37. Tongue thrusting; thumb sucking - pacifiers






38. Introduced the concept of codestruction






39. 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






40. Middle 3rd






41. Anterior; no horizontal overlap






42. Incisal 3rd






43. During protrusive occ - ______ is considered undesirable






44. Maxillary incisors are are lingual to mandibular incisors






45. Habitual - acquired - convenience - intercuspal & static






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






47. After periodontal sugery - mobility will ________






48. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap






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






50. Maxillary - Mandibular - Facial