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






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






3. Tooth extracted






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






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






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






7. Rotated or twisted; rotated mesial or distal






8. Lateral mvmt results in contacct of all posterior teeth






9. Primary teeth set ___________________ for permanent






10. Crowns tipped lingually - roots tipped laterally






11. Buck teeth are common and are considered






12. When no teeth are contacting on this side






13. Functional occlusion






14. Maxillary overlap mandibular; whole arch






15. Vibrational mvmt of a tooth under occ function






16. Tongue thrust or thumb sucking can cause






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






18. Maximum interlocking of cusp






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






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






21. Difference between primary and secondary occ trauma






22. ____ is not a sign of occl trauma






23. 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






24. Maximum touching of max and mand






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






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






27. Tooth positioned more lingual






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






29. Horizontal distance of anterior teeth in crossbite






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






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






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






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






34. Teeth are misaligned when biting together






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






36. Overlap of anterior teeth






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






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






39. II (mal)occlusion






40. #7 - 26 - 27






41. 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






42. Retrognathic profile; buccal groove of mand 1st molar-distal to mb cusp of max 1st; distal of mand. canine distal to mesial to max caniine - tendency toward class II






43. Incisal 3rd






44. 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






45. Vertical






46. Relationship of the arches bone to bone;






47. Starts around the mesial of the 1st molar






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






49. Excessive occ force with adequate bone support =






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