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. Retrognathic profile






2. Maxillary - Mandibular - Facial






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






4. Maximum interlocking of cusp






5. Overlap of anterior teeth






6. Posterior; no horizontal overlap






7. 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






8. During protrusive occ - ______ is considered undesirable






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






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






11. 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






12. 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






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






14. Later






15. Tooth positioned more lingual






16. #7 - 26 - 27






17. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






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






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






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






21. Starts around the mesial of the 1st molar






22. Widening of the PDL in areas under pressure results due to






23. Mesognathic profile






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






25. 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






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






27. Guidance for protrusive occ should be on the






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






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






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






31. Primary teeth set ___________________ for permanent






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






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






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






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






36. Mandible moves to the right or left






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






38. Tooth extracted






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






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






41. Middle 3rd






42. Maximum touching of max and mand






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






44. 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






45. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






46. #10 & #23






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






48. 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






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






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