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






2. Tongue thrust or thumb sucking can cause






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






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






5. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






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






8. Vibrational mvmt of a tooth under occ function






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






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






11. Maximum interlocking of cusp






12. 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






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






14. Mesially - Labially






15. Teeth are misaligned when biting together






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






17. Need tooth to tooth contact on both working and non working sides to func effectively






18. Both sides






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






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






21. Below occlusal plane






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






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






24. Prognathic profile






25. Contact between maxillary incisors does not line up with contact of mandibular incisors






26. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






27. Above occlusal plane






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






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






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






31. Max canine occludes with mand. canine and mand. 1st premolar.






32. Tooth extracted






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






34. Starts around the mesial of the 1st molar






35. #7 - 26 - 27






36. Difference between primary and secondary occ trauma






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






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






39. II (mal)occlusion






40. Middle 3rd






41. Introduced the concept of codestruction






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






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






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






45. Lateral mvmt results in contacct of all posterior teeth






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






47. 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






48. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious






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






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






Can you answer 50 questions in 15 minutes?



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