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. Maxillary incisors are are lingual to mandibular incisors






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






3. ____ is not a sign of occl trauma






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






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






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






7. Radiographically - the PDL space is wider at the coronal third of the root






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






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






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






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






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






13. Guidance for protrusive occ should be on the






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






15. Both sides






16. Horizontal






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






18. Anterior; no horizontal overlap






19. Lateral mvmt results in contacct of all posterior teeth






20. II (mal)occlusion






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






22. Below occlusal plane






23. Tooth-tooth contacts; tooth-hard objects contacts; tooth-oral tissues contact






24. Relationship of the arches bone to bone;






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






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






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






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






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






30. Maximum interlocking of cusp






31. Difference between primary and secondary occ trauma






32. 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






33. Habitual - acquired - convenience - intercuspal & static






34. 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






35. After periodontal sugery - mobility will ________






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






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






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






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






40. Abnormal contacts; occlusal habits - and neuroses






41. 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






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






43. Horizontal distance of anterior teeth in crossbite






44. Retrognathic profile






45. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






46. Introduced the concept of codestruction






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






48. Mesognathic profile






49. Tongue thrust or thumb sucking can cause






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