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. Starts closer to premolars






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






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






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






5. Any occl that produces forces that directly or indirectly cause injury to the attachment apparatus






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






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






8. Maxillary incisors are are lingual to mandibular incisors






9. Class III (mal)occlusion of permanent teeth






10. Functional occlusion






11. Laterally






12. Maxillary anterior teeth stick out labially from tongue thrusting






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






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






15. Above occlusal plane






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






17. Lateral mvmt results in contacct of all posterior teeth






18. 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






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






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






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






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






23. Retrognathic profile






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






25. Middle 3rd






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






27. Abnormal contacts; occlusal habits - and neuroses






28. Starts around the mesial of the 1st molar






29. Excessive occ force with adequate bone support =






30. ____ is not a sign of occl trauma






31. Incisal 3rd






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






33. II (mal)occlusion






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






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






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






37. Tongue thrusting; thumb sucking - pacifiers






38. Teeth are misaligned when biting together






39. 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






40. Crowns tipped lingually - roots tipped laterally






41. Deciduous molars and canines are wider than permanent premolars and canines; space saved during mesial drift of permanent molars






42. Cervical 3rd






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






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






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






46. #10 & #23






47. Later






48. Tooth extracted






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






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