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. 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






2. Excessive occ force with adequate bone support =






3. Curve spee & wilson - 3-d - not proven






4. Mb cusp of max 1st molar-buccal groove of mand 1st molar






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






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






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






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






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






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






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






12. Vertical overlapping






13. Maximum interlocking of cusp






14. Teeth are misaligned when biting together






15. Overlap of anterior teeth






16. 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






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






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






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






20. Spaces between two teeth






21. 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






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






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






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






25. Mandibular molars more mesial than maxillary molars (most children)






26. Difference between primary and secondary occ trauma






27. 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






28. Mesognathic profile






29. Starts around the mesial of the 1st molar






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






31. Horizontal distance of anterior teeth in crossbite






32. Mandible moves to the right or left






33. Habitual - acquired - convenience - intercuspal & static






34. 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






35. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt






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






37. Above occlusal plane






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






39. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth






40. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors






41. ____ is not a sign of occl trauma






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






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






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






45. Vertical






46. Individual teeth from each arch can be involved in ________________ malocclusion






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






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






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






50. II (mal)occlusion