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






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






3. Radiographically - the PDL space is wider at the coronal third of the root






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






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






6. Measurement of horizontal overlap w/ probe






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






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






9. Mesognathic profile






10. Incisal 3rd






11. Starts around the mesial of the 1st molar






12. Middle 3rd






13. Buck teeth are common and are considered






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






15. 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






16. Later






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






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






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






20. #10 & #23






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






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






23. Habitual - acquired - convenience - intercuspal & static






24. Introduced the concept of codestruction






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






26. Mandibular molars and maxillary molars are even






27. After periodontal sugery - mobility will ________






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






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






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






31. Above occlusal plane






32. Excessive occ force with adequate bone support =






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






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






35. Class III (mal)occlusion of permanent teeth






36. Selective grinding should always be completed after ______ has been controlled






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






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






39. Mesially - Labially






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






41. Cervical 3rd






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






43. 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






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






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






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






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






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






49. Primary teeth set ___________________ for permanent






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







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