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






2. 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






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






4. Mandibular molars and maxillary molars are even






5. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced






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






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






8. Tongue thrusting; thumb sucking - pacifiers






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






10. Overlap of anterior teeth






11. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt






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






13. Both sides






14. Lateral mvmt results in contact btwn the max and mand canines






15. Maxillary - Mandibular - Facial






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






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






18. Relationship of the arches bone to bone;






19. 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






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






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






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






23. Guidance for protrusive occ should be on the






24. Maxillary incisors are are lingual to mandibular incisors






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






26. Mesognathic profile






27. Below occlusal plane






28. Crowns tipped lingually - roots tipped laterally






29. Vertical






30. During protrusive occ - ______ is considered undesirable






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






32. Mandible moves to the right or left






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






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






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






36. Posterior; no horizontal overlap






37. Usually indicative of moderate to sever perio and secondary occ trauma






38. Incisal 3rd






39. Maximum interlocking of cusp






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






41. Tooth positioned more lingual






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






43. Buck teeth are common and are considered






44. Vertical overlapping






45. Laterally






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






47. Occlusal guard =






48. What is not affected by occ trauma






49. After periodontal sugery - mobility will ________






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