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. 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






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






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






4. #10 & #23






5. Measurement of horizontal overlap w/ probe






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






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






8. Relationship of the teeth in which the incisal ridges of the maxillary anterior teeth extend below the incisal edges of the mandibular anterior teeth when the teeth are placed in a centric occlusal relationship






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






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






11. During protrusive occ - ______ is considered undesirable






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






13. Curved alignment of the occlusal plane when looking from a posterior view(right to left)






14. Teeth are misaligned when biting together






15. Habitual - acquired - convenience - intercuspal & static






16. Laterally






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






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






19. Tooth positioned more facial






20. Vertical






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






22. Occlusal guard =






23. Spaces between two teeth






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






25. Maxillary - Mandibular - Facial






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






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






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






29. Maximum touching of max and mand






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






31. Guidance for protrusive occ should be on the






32. Reshaping of the occ or incisal surfaces of teeth to create contacts btwn upper and lower dentition






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






34. Rotated or twisted; rotated mesial or distal






35. What is not affected by occ trauma






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






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






38. 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






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






40. Tongue thrust or thumb sucking can cause






41. Mesognathic profile






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






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






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






45. Later






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






47. A tooth that occludes with an opposing tooth before full closure is achieved in centric occlusion






48. Lateral mvmt results in contacct of all posterior teeth






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






50. Anterior; no horizontal overlap