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






2. Vibrational mvmt of a tooth under occ function






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






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






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






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






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






9. Tooth positioned more lingual






10. Spaces between two teeth






11. Selective grinding should always be completed after ______ has been controlled






12. Tooth extracted






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






14. Mandibular molars more mesial than maxillary molars (most children)






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






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






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






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






19. 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






20. Transverse occlusal curvature; posterior teeth; medio-lateral postion (r-l)






21. Maxillary incisors are are lingual to mandibular incisors






22. Class III (mal)occlusion of permanent teeth






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






24. Contact between maxillary incisors does not line up with contact of mandibular incisors






25. Mesognathic profile






26. II (mal)occlusion






27. 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






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






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






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






31. Relationship of the arches bone to bone;






32. During protrusive occ - ______ is considered undesirable






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






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






35. Crowns tipped lingually - roots tipped laterally






36. 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






37. Posterior; no horizontal overlap






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






39. Starts closer to premolars






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






41. Mesially - Labially






42. What is not affected by occ trauma






43. Because the permanent premolars are narrower than the primary molars that they replace - this is what happens when the premolars erupt






44. Teeth are misaligned when biting together






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






46. Vertical overlapping






47. #10 & #23






48. ____ is not a sign of occl trauma






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






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