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. Vertical






2. Middle 3rd






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






4. Starts closer to premolars






5. Rotated or twisted; rotated mesial or distal






6. Excessive deposition of cementum around the apex - due to excessive occlusal forces






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






8. Vibrational mvmt of a tooth under occ function






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






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






11. Lateral mvmt results in contacct of all posterior teeth






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






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






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






15. Mandible moves to the right or left






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






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






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






19. Buck teeth are common and are considered






20. Teeth are misaligned when biting together






21. Measurement of horizontal overlap w/ probe






22. Above occlusal plane






23. Anterior; no horizontal overlap






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






25. Maxillary overlap mandibular; whole arch






26. What is not affected by occ trauma






27. 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






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






29. Tongue thrusting; thumb sucking - pacifiers






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






31. Horizontal distance of anterior teeth in crossbite






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






33. Abnormal contacts; occlusal habits - and neuroses






34. Tooth positioned more facial






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






36. 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






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






38. 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






39. Mesognathic profile






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






41. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






42. Crowns tipped lingually - roots tipped laterally






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






44. Relationship of the arches bone to bone;






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






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






47. 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






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






49. Starts around the mesial of the 1st molar






50. Prognathic profile