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






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






4. Curve spee & wilson - 3-d - not proven






5. Maxillary overlap mandibular; whole arch






6. Maxillary-between canines and laterals - mandibular-between canines and 1st molars






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






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






9. Mandible moves to the right or left






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






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






12. Vertical overlapping






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






15. Vertical






16. Horizontal






17. When no teeth are contacting on this side






18. Anterior; no horizontal overlap






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






20. After periodontal sugery - mobility will ________






21. Mvmt of the mandible in a direction anterior to centric occ






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






23. 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






24. Relationship of the teeth in opposite arches; static position






25. 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






26. #10 & #23






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






28. Measurement of horizontal overlap w/ probe






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






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






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






32. Can be caused by forces of malocclusion - teeth can become loose - periodontal disease may develop(alveolar bone loss)






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






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






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






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






37. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced






38. Maximum touching of max and mand






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






40. Overlap of anterior teeth






41. Introduced the concept of codestruction






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






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






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






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






46. Mandibular molars and maxillary molars are even






47. Retrognathic profile






48. #7 - 26 - 27






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






50. Difference between primary and secondary occ trauma