Dental Occlusion and Tooth Relations
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Questions and Answers

What is the position of the mandible when the condyles are resting in the most retrusive unstrained position in the glenoid fossa?

  • Terminal masticatory stroke
  • Centric relation (correct)
  • Centric occlusion
  • Maximum intercuspation
  • What is the purpose of overbite in centric occlusion?

  • To prevent soft tissue biting
  • To enable the disocclusion of the posterior teeth during food incision (correct)
  • To increase the efficiency of the anterior teeth in biting
  • To guide the mandible through various lateral movements
  • What is the significance of the curve of Spee in dental occlusion?

  • It guides the mandible movement to complement the condyle paths (correct)
  • It increases the overjet of the upper teeth
  • It prevents soft tissue biting
  • It decreases the overbite of the upper teeth
  • What is the characteristic of the maxillary arch compared to the mandibular arch?

    <p>It is larger in size</p> Signup and view all the answers

    What is the term for the horizontal relation of the upper teeth to the lower teeth in centric occlusion?

    <p>Overjet</p> Signup and view all the answers

    What is the purpose of overjet in centric occlusion?

    <p>To increase the duration of occlusal contact</p> Signup and view all the answers

    What is the name of the space between the occluding surface of maxillary teeth when the mandible is at the vertical dimension of rest position?

    <p>Free Way Space</p> Signup and view all the answers

    What is the typical range of the Free Way Space?

    <p>2-5mm</p> Signup and view all the answers

    In centric occlusion, how do the maxillary teeth relate to the mandibular teeth in the anterior region?

    <p>They overlap</p> Signup and view all the answers

    What is the name of the key of occlusion in Angle's class I occlusion?

    <p>MB cusp of permanent maxillary 1st molar overlaps MB groove of permanent 1st molar</p> Signup and view all the answers

    What is the term for the maximum intercuspation or contact attained between maxillary and mandibular teeth?

    <p>Centric occlusion</p> Signup and view all the answers

    What should coincide in order to have perfect harmony between teeth, TMJ, and neuromuscular system?

    <p>Centric relation and centric occlusion</p> Signup and view all the answers

    What is the primary function of the facial and lingual relations of each tooth in one arch to its antagonist in the opposing arch in centric occlusion?

    <p>To distribute occlusal forces to several teeth</p> Signup and view all the answers

    What happens to the space between teeth in centric occlusion compared to lateral relation?

    <p>The space decreases in centric occlusion and increases in lateral relation</p> Signup and view all the answers

    Which teeth do not occlude with two teeth in the opposing arch in centric occlusion?

    <p>Mandibular central incisors and maxillary third molars</p> Signup and view all the answers

    What type of movement is protrusion in mandibular movements?

    <p>Symmetrical bilateral movement</p> Signup and view all the answers

    What is the term for the movement of the mandible towards the midpoint of the cranial base?

    <p>Elevation</p> Signup and view all the answers

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