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. Primary teeth set ___________________ for permanent






2. Horizontal distance of anterior teeth in crossbite






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






4. Tongue thrust or thumb sucking can cause






5. Maximum interlocking of cusp






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






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






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






9. Class III (mal)occlusion of permanent teeth






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






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






12. 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






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






14. Prognathic profile






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






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






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






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






19. Mesognathic profile






20. 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






21. Anterior; no horizontal overlap






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






23. 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






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






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






26. Middle 3rd






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






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






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






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






31. Retrognathic profile -buccal groove of mand. 1st molar-distal to mb cusp of 1st max.molar -distal of mand canine distal to mesial of max canine - tendency towards class II






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






33. Both sides






34. Can affect the TMJ - muscles of mastication - pulp and integrity of restorations






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






36. Posterior; no horizontal overlap






37. Tooth extracted






38. Introduced the concept of codestruction






39. Horizontal






40. Cervical 3rd






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






42. Difference between primary and secondary occ trauma






43. Mesially - Labially






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






45. Excessive occ force with adequate bone support =






46. Max canine occludes with mand. canine and mand. 1st premolar.






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






48. Measurement of horizontal overlap w/ probe






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






50. What is not affected by occ trauma