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. Anterior crossbite; max/mand incisors-edge to edge occlusion; crowded mand. incisors






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






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






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






5. Spaces between two teeth






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






7. Above occlusal plane






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






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






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






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






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






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






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






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






16. Middle 3rd






17. Lateral mvmt results in contacct of all posterior teeth






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






19. Class III (mal)occlusion of permanent teeth






20. Anterior; no horizontal overlap






21. Tongue thrusting; thumb sucking - pacifiers






22. #10 & #23






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






24. Mesially - Labially






25. Retrognathic profile






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






27. Vertical overlapping






28. Mand. retruded-max. incisors protruded; deep overbite; excessive overjet - abnormal muscle function - short mandible - short upper lip






29. Horizontal distance of anterior teeth in crossbite






30. 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






31. 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






32. Starts around the mesial of the 1st molar






33. Rotated or twisted; rotated mesial or distal






34. Tongue thrust or thumb sucking can cause






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






36. #7 - 26 - 27






37. Mandibular molars and maxillary molars are even






38. During protrusive occ - ______ is considered undesirable






39. Starts closer to the posterior of the 1st molar






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






41. Relationship of the arches bone to bone;






42. Maxillary - Mandibular - Facial






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






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






45. Horizontal






46. Tooth positioned more lingual






47. Introduced the concept of codestruction






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






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






50. Excessive occ force with adequate bone support =