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. #7 - 26 - 27






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






3. Rotated or twisted; rotated mesial or distal






4. Guidance for protrusive occ should be on the






5. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)






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






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






8. 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






9. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)






10. II (mal)occlusion






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






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






13. Teeth are misaligned when biting together






14. Crowns tipped lingually - roots tipped laterally






15. Class III (mal)occlusion of permanent teeth






16. What is not affected by occ trauma






17. Mesially - Labially






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






19. During protrusive occ - ______ is considered undesirable






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






21. Excessive occ force with adequate bone support =






22. Spaces between two teeth






23. 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






24. 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






25. The way you normally bite your teeth together when not chewing






26. 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






27. Mesognathic profile






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






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






30. Starts around the mesial of the 1st molar






31. Overlap of anterior teeth






32. Incisal 3rd






33. 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






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






35. Difference between primary and secondary occ trauma






36. Horizontal distance of anterior teeth in crossbite






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






38. 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






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






40. Need tooth to tooth contact on both working and non working sides to func effectively






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






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






43. Prognathic profile






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






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






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






47. Maximum interlocking of cusp






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






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






50. Tooth extracted