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. 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






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






3. Teeth are misaligned when biting together






4. Tongue thrust or thumb sucking can cause






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






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






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






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






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






11. Measurement of horizontal overlap w/ probe






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






13. 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






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






15. During protrusive occ - ______ is considered undesirable






16. Later






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






18. After periodontal sugery - mobility will ________






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






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






21. Vertical overlapping






22. Difference between primary and secondary occ trauma






23. Maximum touching of max and mand






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






25. Both sides






26. 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






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






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






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






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






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






32. Starts around the mesial of the 1st molar






33. Incisal 3rd






34. Buck teeth are common and are considered






35. #10 & #23






36. Horizontal






37. Rotated or twisted; rotated mesial or distal






38. Mesially - Labially






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






40. 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






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






42. Habitual - acquired - convenience - intercuspal & static






43. Any deviation from the ideal or normal occl. includes crowding - malpositioned or tipped teeth






44. Guidance for protrusive occ should be on the






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






46. Crowns tipped lingually - roots tipped laterally






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






48. 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






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






50. Vertical