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. Tongue thrusting; thumb sucking - pacifiers






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






3. Mesognathic profile






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






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






6. Posterior; no horizontal overlap






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






8. II (mal)occlusion






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






10. What is not affected by occ trauma






11. Anterior; no horizontal overlap






12. Vertical overlapping






13. 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






14. When no teeth are contacting on this side






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






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






17. Laterally






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






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






20. ____ is not a sign of occl trauma






21. Functional occlusion






22. Below occlusal plane






23. Above occlusal plane






24. Primary teeth set ___________________ for permanent






25. Starts closer to premolars






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






27. Horizontal distance of anterior teeth in crossbite






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






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






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






31. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






32. Retrognathic profile






33. Maxillary - Mandibular - Facial






34. Maximal intercuspation or contact of the max and mand teeth






35. Overlap of anterior teeth






36. Cervical 3rd






37. 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






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






39. Vertical






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






41. Excessive occ force with adequate bone support =






42. Mandibular molars more distal than maxillary molars






43. Rotated or twisted; rotated mesial or distal






44. Mandible moves to the right or left






45. Horizontal






46. Tooth extracted






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






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






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






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