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. Maximum touching of max and mand






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






3. 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






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






5. During selective grinding - occlusion should be adjusted In what four relationships






6. ____ is not a sign of occl trauma






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






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






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






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






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






12. During protrusive occ - ______ is considered undesirable






13. Occlusal guard =






14. Teeth are misaligned when biting together






15. Below occlusal plane






16. 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






17. Difference between primary and secondary occ trauma






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






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






20. Anterior; no horizontal overlap






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






22. Individual teeth from each arch can be involved in ________________ malocclusion






23. 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






24. Cervical 3rd






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






26. 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






27. Starts around the mesial of the 1st molar






28. What is not affected by occ trauma






29. Laterally






30. Mesognathic profile






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






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






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






34. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






35. Maximum interlocking of cusp






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






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






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






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






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






41. Horizontal distance of anterior teeth in crossbite






42. II (mal)occlusion






43. Vertical






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






45. Prognathic profile






46. #10 & #23






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






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






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






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