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. Cervical 3rd






2. Middle 3rd






3. Incisal 3rd






4. Rotated or twisted; rotated mesial or distal






5. Vertical






6. Tooth positioned more facial






7. During a left working movement - the right side is known as the






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






9. Tooth positioned more lingual






10. Laterally






11. Mandibular molars and maxillary molars are even






12. Later






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






14. Abnormal contacts; occlusal habits - and neuroses






15. Buck teeth are common and are considered






16. Introduced the concept of codestruction






17. Maximum touching of max and mand






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






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






20. ____ is not a sign of occl trauma






21. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion






22. Retrognathic profile






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






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






25. Malocclusion cause excessive incisal or occlusal wear(attrition); teeth continue to erupt in order to occlude with teeth in the opposite arch & roots become exposed






26. Maxillary - Mandibular - Facial






27. Above occlusal plane






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






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






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






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






33. 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






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






35. 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






36. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II






37. Horizontal distance of anterior teeth in crossbite






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






39. Maximum interlocking of cusp






40. If the mandible moves to the left - the mvmt is known as a left working movement






41. 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






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






43. Horizontal






44. Starts around the mesial of the 1st molar






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






46. Measurement of horizontal overlap w/ probe






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






48. Maxillary anterior teeth stick out labially from tongue thrusting






49. What is not affected by occ trauma






50. Posterior; no horizontal overlap