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






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






3. Excessive occ force with adequate bone support =






4. Normal contacts between max. and mand. teeth; momentary contacts






5. Guidance for protrusive occ should be on the






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






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






8. Both sides






9. Teeth are misaligned when biting together






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






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






12. Starts closer to premolars






13. Above occlusal plane






14. Slight buccal inclination of crown - lingual inclination of root






15. During protrusive occ - ______ is considered undesirable






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






17. Relationship of the arches bone to bone;






18. Mand. facial or lingual to max. - unitlateral or bilateral; incorrect horizontal overlap






19. Horizontal distance of anterior teeth in crossbite






20. What is not affected by occ trauma






21. Anterior teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






22. 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






23. Prognathic profile






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






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






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






27. Middle 3rd






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






29. Anterior; no horizontal overlap






30. 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






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






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






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






34. Difference between primary and secondary occ trauma






35. Cervical 3rd






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






37. Tongue thrusting; thumb sucking - pacifiers






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






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






40. After periodontal sugery - mobility will ________






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






42. Overlap of anterior teeth






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






44. Starts around the mesial of the 1st molar






45. Mandibular molars more distal than maxillary molars






46. Vertical






47. Lateral mvmt results in contacct of all posterior teeth






48. The way you normally bite your teeth together when not chewing






49. Incisal 3rd






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