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. Horizontal distance of anterior teeth in crossbite






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






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






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






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






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






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






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






9. 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






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






11. Maxillary overlap mandibular; whole arch






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






13. Vibrational mvmt of a tooth under occ function






14. Mandible moves to the right or left






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






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






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






18. Measurement of horizontal overlap w/ probe






19. Anterior or posterior; bilateral or unitlateral - anterior more common






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






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






22. Laterally






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






24. 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






25. After periodontal sugery - mobility will ________






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






27. Both sides






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






29. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus






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






31. Excessive occ force with adequate bone support =






32. Guidance for protrusive occ should be on the






33. 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






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






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






36. Tooth positioned more facial






37. Functional occlusion






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






39. Maxillary incisors are are lingual to mandibular incisors






40. Retrognathic profile






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






42. Maximum touching of max and mand






43. During selective grinding - occlusion should be adjusted In what four relationships






44. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






45. Maximum interlocking of cusp






46. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract






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






48. Habitual - acquired - convenience - intercuspal & static






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






50. Posterior; no horizontal overlap