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






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






3. Habitual - acquired - convenience - intercuspal & static






4. Occlusal guard =






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






6. 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






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






8. Functional occlusion






9. Tongue thrusting; thumb sucking - pacifiers






10. 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






11. Mandibular molars and maxillary molars are even






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






13. Retrognathic profile






14. Incisal 3rd






15. Later






16. Both sides






17. Abnormal contacts; occlusal habits - and neuroses






18. Above occlusal plane






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






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






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






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






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






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






25. Selective grinding should always be completed after ______ has been controlled






26. Hereditary - Tongue - Intercuspation of teeth - Alignment of previously erupted teeth affects alignment of successive teeth






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






28. 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






29. Relationship of the arches bone to bone;






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






31. Teeth are misaligned when biting together






32. Overlap of anterior teeth






33. Middle 3rd






34. Guidance for protrusive occ should be on the






35. Overclosure of the anterior teeth can cause trauma to the gingiva of the max teeth






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






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






38. Maximum touching of max and mand






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






40. Starts around the mesial of the 1st molar






41. Tongue thrust or thumb sucking can cause






42. Difference between primary and secondary occ trauma






43. Buck teeth are common and are considered






44. Maxillary overlap mandibular; whole arch






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






46. 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






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






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






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






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