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 tooth has insufficient bone support and normal chewing and swallowing forces are excessive - causing injury to the attachment appartatus






2. Maxillary - Mandibular - Facial






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






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






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






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






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






8. Permits healing of the attachment apparatus by holding a tooth in a totally fixed position; allows the PDL to become narrower and the mobility to be reduced






9. Excessive occ force with adequate bone support =






10. Habitual - acquired - convenience - intercuspal & static






11. The relationship of the teeth in the mandibular arch to those in the maxillary arch as they are brought together






12. Mandibular molars and maxillary molars are even






13. Anterior; no horizontal overlap






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






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






16. Tooth positioned more facial






17. #10 & #23






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






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






20. Starts around the mesial of the 1st molar






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






22. Horizontal






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






25. Cervical 3rd






26. Occlusal guard =






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






28. Lateral mvmt results in contacct of all posterior teeth






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






30. Mesially - Labially






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






32. Maximum interlocking of cusp






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






34. Tooth extracted






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






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






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






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






39. Below occlusal plane






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






41. Cusps of maxillary teeth directly over cusps of mandibular teeth






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






43. Mand. retruded-one or more max. incisors retruded; max. laterals protruded-max centrals retruded; crowded max anterior teeth; deep overbite






44. ____ is not a sign of occl trauma






45. Mandibular molars more distal than maxillary molars






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






47. 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






48. Retrognathic profile






49. Mandible moves to the right or left






50. Maximum touching of max and mand