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. Introduced the concept of codestruction






2. Relationship of the teeth in opposite arches; static position






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






4. Posterior; no horizontal overlap






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






6. Maximum interlocking of cusp






7. Tongue thrusting; thumb sucking - pacifiers






8. #7 - 26 - 27






9. Mandible moves to the right or left






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






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






12. Vibrational mvmt of a tooth under occ function






13. Functional occlusion






14. During protrusive occ - ______ is considered undesirable






15. Maxillary overlap mandibular; whole arch






16. Above occlusal plane






17. Vertical overlapping






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






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






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






21. Mandibular molars and maxillary molars are even






22. 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






23. Primary teeth set ___________________ for permanent






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






25. Horizontal






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






27. Mandibular molars more distal than maxillary molars






28. Both sides






29. 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






30. 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






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






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






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






34. 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






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






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






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






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






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






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






41. Mesially - Labially






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






43. Vertical






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






45. Middle 3rd






46. Retrognathic profile






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






48. Associated with performance; all contacts during function of the oral cavity






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






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