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. When no teeth are contacting on this side






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






3. Anterior; no horizontal overlap






4. ____ is not a sign of occl trauma






5. Mandibular molars more distal than maxillary molars






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






7. Later






8. Tongue thrust or thumb sucking can cause






9. After periodontal sugery - mobility will ________






10. Mandibular molars and maxillary molars are even






11. Lateral mvmt results in contacct of all posterior teeth






12. Rotated or twisted; rotated mesial or distal






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






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






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






16. 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






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






18. Tooth positioned more lingual






19. 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






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






21. Mesially - Labially






22. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






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






24. Starts closer to the posterior of the 1st molar






25. Functional occlusion






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






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






28. Vertical






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






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






31. 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






32. Horizontal






33. Middle 3rd






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






35. Maxillary incisors are are lingual to mandibular incisors






36. Tooth extracted






37. Measurement of horizontal overlap w/ probe






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






39. Overlap of anterior teeth






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






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






42. Class III (mal)occlusion of permanent teeth






43. Excessive occ force with adequate bone support =






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






45. Does not result from brushing at all - but from traumatic lateral forces placed on the teeth as a result of a malocclusion or abnormal tongue activity. Root surface is exposed & can become carious






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






47. 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






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






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






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