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. Lateral mvmt results in contacct of all posterior teeth






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






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






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






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






6. Injury to the attachment apparatus (bone - PDL - and cementum) as a consequence of normal or excessive occ forces






7. Starts around the mesial of the 1st molar






8. Above occlusal plane






9. Below occlusal plane






10. 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






11. Teeth are misaligned when biting together






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






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






14. II (mal)occlusion






15. Mandible moves to the right or left






16. Curved alignment of the occlusal plane when looking from a lateral view(distal to mesial)






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






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






19. 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






20. Measurement of horizontal overlap w/ probe






21. When no teeth are contacting on this side






22. Tooth extracted






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






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






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






26. Incisal 3rd






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






28. Max. incisors lingual to mand. incisors; incorrect horizontal overlap






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






30. Tongue thrust or thumb sucking can cause






31. Relationship of teeth in which the incisal ridges or buccal cusp ridges of the maxillary anterior teeth extend facially to the incisal ridges/cusps of the mandibular teeth when the teeth are in centric occlusion relationship






32. The way you normally bite your teeth together when not chewing






33. Occlusal guard =






34. Overlap of anterior teeth






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






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






37. Middle 3rd






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






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






40. Difference between primary and secondary occ trauma






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






42. Later






43. Occlusal forces will accelerate the rate of perio destruction and result in CT attachment loss in the presence of preexisting inflammation






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






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






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






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






48. Rotated or twisted; rotated mesial or distal






49. 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






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