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






2. Maxillary anterior teeth stick out labially from tongue thrusting






3. The patient is constantly tightening the lower lip against the lower anterior teeth causing the the mandibular teeth to be pushed back into the mouth by this overdeveloped lower lip






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






5. Maxillary overlap mandibular; whole arch






6. Mesially - Labially






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






8. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






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






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






11. 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






12. 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






13. Later






14. Mandible moves to the right or left






15. Tooth extracted






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






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






18. 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






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






20. Retrognathic profile






21. Incisal 3rd






22. Vertical overlapping






23. Maxillary - Mandibular - Facial






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






25. A continuation of the spee of to extend through the condyle






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






27. Maximum touching of max and mand






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






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






30. Functional occlusion






31. Excessive occ force with adequate bone support =






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






33. Mandibular molars and maxillary molars are even






34. Middle 3rd






35. During protrusive occ - ______ is considered undesirable






36. If the mandible moves to the left - the mvmt is known as a left working movement






37. Tooth positioned more facial






38. 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






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






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






41. After periodontal sugery - mobility will ________






42. Above occlusal plane






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






44. Aquired centric occlusion - habitual occlusion - convienience occlusion - or intercuspal position






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






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






47. Buck teeth are common and are considered






48. Patients show evidence or signs and syptoms of occ disease






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






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