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. Teeth that are in func when the mandible moves in lateral or protrusive excursions or mvmts






2. Tooth positioned more lingual






3. Curve spee & wilson - 3-d - not proven






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






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






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






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






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






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






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






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






12. Starts around the mesial of the 1st molar






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






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






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






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






17. Difference between primary and secondary occ trauma






18. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation






19. #10 & #23






20. 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






21. Mesially - Labially






22. Horizontal






23. Tongue thrusting; thumb sucking - pacifiers






24. Tooth positioned more facial






25. 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






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






27. Cervical 3rd






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






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






30. Retrognathic profile






31. Horizontal distance of anterior teeth in crossbite






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






33. Posterior; no horizontal overlap






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






35. Prognathic profile






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






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






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






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






40. Habitual - acquired - convenience - intercuspal & static






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






42. Maxillary - Mandibular - Facial






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






44. Maxillary anterior teeth stick out labially from tongue thrusting






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






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






47. Tongue thrust or thumb sucking can cause






48. Below occlusal plane






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






50. Starts closer to premolars