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






2. Both sides






3. Middle 3rd






4. 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






5. Lateral mvmt results in contacct of all posterior teeth






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






7. Abnormal contacts; occlusal habits - and neuroses






8. Below occlusal plane






9. Cervical 3rd






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






11. Crowns tipped lingually - roots tipped laterally






12. Tongue thrust or thumb sucking can cause






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






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






15. Vibrational mvmt of a tooth under occ function






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






17. 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






18. Starts closer to premolars






19. Spaces between two teeth






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






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






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






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






24. Horizontal






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






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






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






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






29. Rotated or twisted; rotated mesial or distal






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






31. Anterior; no horizontal overlap






32. Habitual - acquired - convenience - intercuspal & static






33. Vertical overlapping






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






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






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






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






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






39. Laterally






40. Mesognathic profile






41. 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






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






43. Tooth extracted






44. Mesially - Labially






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






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






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






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






49. Teeth are misaligned when biting together






50. Starts around the mesial of the 1st molar