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 teeth do not occlude - or remain open - while posterior teeth may have a normal occlusion






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






3. Spaces between two teeth






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






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






6. Maxillary incisors are are lingual to mandibular incisors






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






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






9. #7 - 26 - 27






10. Class III (mal)occlusion of permanent teeth






11. Middle 3rd






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






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






14. Guidance for protrusive occ should be on the






15. Vertical






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






17. #10 & #23






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






19. Starts around the mesial of the 1st molar






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






21. Excessive occ force with adequate bone support =






22. ____ is not a sign of occl trauma






23. Teeth are misaligned when biting together






24. Muscles that work the jaw; may become sore due to occ trauma






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






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






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






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






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






30. Mandibular molars and maxillary molars are even






31. Functional occlusion






32. During protrusive occ - ______ is considered undesirable






33. Usually indicative of moderate to sever perio and secondary occ trauma






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






35. Mesially - Labially






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






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






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






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






40. If the mandible moves to the left - the mvmt is known as a left working movement






41. 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






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






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






44. Overlap of anterior teeth






45. After periodontal sugery - mobility will ________






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






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






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






49. Vibrational mvmt of a tooth under occ function






50. Difference between primary and secondary occ trauma