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 around the mesial of the 1st molar






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






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






4. Habitual - acquired - convenience - intercuspal & static






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






6. Need tooth to tooth contact on both working and non working sides to func effectively






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






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






10. Posterior; no horizontal overlap






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






12. 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






13. Mandible moves to the right or left






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






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






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






17. Tongue thrusting; thumb sucking - pacifiers






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






19. 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






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






21. Incisal 3rd






22. Mesially - Labially






23. 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






24. Middle 3rd






25. Below occlusal plane






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






27. High restoration - parafunctional habits - malpositioned tooth - periapical abcess - physical 'blow' - removable partial - ortho mvmt






28. Vibrational mvmt of a tooth under occ function






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






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






31. Horizontal






32. Anterior or posterior; bilateral or unitlateral - anterior more common






33. Tongue thrust or thumb sucking can cause






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






35. Mandibular molars more distal than maxillary molars






36. Prognathic profile






37. Buck teeth are common and are considered






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






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






40. Position of the mandible relative to the maxilla during swallowing and other times when the jaw muscles contract






41. #7 - 26 - 27






42. Mandibular molars and maxillary molars are even






43. During protrusive occ - ______ is considered undesirable






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






45. Excessive occ force with adequate bone support =






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






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






48. Laterally






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






50. Abnormal contacts; occlusal habits - and neuroses