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. Starts closer to premolars






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






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






4. Relationship of the arches bone to bone;






5. Retrognathic profile






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






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






8. Lateral mvmt results in contacct of all posterior teeth






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






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






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






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






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






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






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






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






17. 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






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






19. Symptom free dentition that 'survives' or 'adapts' to a deviated occl






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






21. Mesially - Labially






22. 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






23. What is not affected by occ trauma






24. 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






25. Cervical 3rd






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






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






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






29. Class III (mal)occlusion of permanent teeth






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






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






32. Both sides






33. Difference between primary and secondary occ trauma






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






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






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






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






38. ____ is not a sign of occl trauma






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






40. Vibrational mvmt of a tooth under occ function






41. Overlap of anterior teeth






42. During protrusive occ - ______ is considered undesirable






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






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






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






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






47. 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






48. II (mal)occlusion






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






50. Functional occlusion