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






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






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






5. Maximum touching of max and mand






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






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






8. Both sides






9. Horizontal






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






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






12. What is not affected by occ trauma






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






14. Vibrational mvmt of a tooth under occ function






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






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






17. Incisal 3rd






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






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






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






21. During protrusive occ - ______ is considered undesirable






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






23. Abnormal contacts; occlusal habits - and neuroses






24. Tongue thrusting; thumb sucking - pacifiers






25. Guidance for protrusive occ should be on the






26. Tooth extracted






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






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






29. Tongue thrust or thumb sucking can cause






30. When the jaws are closed - the buccal cusps of the mandibular posterior teeth are interlocked between the buccal & lingual cusps of the maxillary teeth






31. 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






32. #7 - 26 - 27






33. Prognathic profile; buccal groove of mand. 1st molar-mesial to mb cusp of max. 1st molar; distal of mand. canine mesial to mesial of max canine; tendency toward class III






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






35. II (mal)occlusion






36. Lateral mvmt results in contacct of all posterior teeth






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






38. Crowns tipped lingually - roots tipped laterally






39. After periodontal sugery - mobility will ________






40. Class III (mal)occlusion of permanent teeth






41. 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






42. Mandibular molars and maxillary molars are even






43. ____ is not a sign of occl trauma






44. Functional occlusion






45. Measurement of horizontal overlap w/ probe






46. A continuation of the spee of to extend through the condyle






47. Patient forces teeth together in centric occlusion on one side to get a more functional bite and has a crossbite on the other side(the midline of the maxillary anterior teeth does not line up with the midlineof the mandible






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






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






50. Later