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. Maximum touching of max and mand






2. Retrognathic profile






3. 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






4. Class III (mal)occlusion of permanent teeth






5. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite






6. Vertical






7. Primary teeth set ___________________ for permanent






8. 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






9. Tooth positioned more facial






10. Horizontal






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






12. 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






13. 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






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






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






16. Patients show evidence or signs and syptoms of occ disease






17. Lateral mvmt results in contacct of all posterior teeth






18. Tongue thrust or thumb sucking can cause






19. After periodontal sugery - mobility will ________






20. 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






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






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






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






24. Below occlusal plane






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






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






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






28. Maximum interlocking of cusp






29. During a left working movement - the right side is known as the






30. Maxillary - Mandibular - Facial






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






32. Occlusal guard =






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






34. Tooth positioned more lingual






35. Mandible moves to the right or left






36. Cervical 3rd






37. Functional occlusion






38. Crowns tipped lingually - roots tipped laterally






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






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






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






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






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






44. Overlap of anterior teeth






45. Curve of the occlusal plane; from anterior to posterior - increases with age






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






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






48. Laterally






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






50. Horizontal distance of anterior teeth in crossbite