DEN203 Jaw Relations in Prosthetic Dentistry II
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Questions and Answers

What does the term 'vertical dimension' refer to?

  • The width of the face
  • The length of the face (correct)
  • The curvature of the face
  • The depth of the face

What acts as a vertical stop in maintaining the vertical dimension?

  • Jawbone
  • Palate
  • Tooth (correct)
  • Gum tissue

What is referred to as 'Vertical dimension of rest or physiologic rest position'?

  • VDR (correct)
  • VDO
  • TMJ
  • Mandibular movements

What happens if the vertical dimension is altered?

<p>Severe discomfort in both TMJ and muscles of mastication occurs (C)</p> Signup and view all the answers

What maintains the vertical dimension?

<p>Occlusion of the teeth or balanced tonic contraction of mandibular muscles (C)</p> Signup and view all the answers

What does VDO stand for?

<p>Vertical Dimension of Occlusion (A)</p> Signup and view all the answers

What does VDR stand for?

<p>Vertical Dimension of Rest Position (D)</p> Signup and view all the answers

What tends to be in a state of minimal tonic contraction in terms of musculature related to jaw relations?

<p>Opening and closing muscles (A)</p> Signup and view all the answers

What will happen if the joint is not measured accurately?

<p>The joint will be strained. (D)</p> Signup and view all the answers

Which factor is related to a patient's esthetical appearance according to jaw relations?

<p>Vertical Dimension (VD) (B)</p> Signup and view all the answers

What is the physiologic rest position of the mandible?

<p>Position where the muscles are in equilibrium and the condyles are in a neutral unstrained position (C)</p> Signup and view all the answers

What is the interocclusal distance (IOD) frequently referred to as?

<p>Free way space (A)</p> Signup and view all the answers

What happens when there is an increase in Vertical Dimension of Occlusion (VDO) / decrease in IOD?

<p>Chin-nose distance increases and patients have an appearance of open mouth (A)</p> Signup and view all the answers

What is potentially damaging to the temporomandibular joint (TMJ)?

<p>Decrease in VDO / Increase in IOD (C)</p> Signup and view all the answers

What is Centric Relation (CR) defined as?

<p>&quot;A maxillomandibular relationship in which the condyles articulate with the thinnest avascular portion of their respective disks&quot; (A)</p> Signup and view all the answers

What does Centric Occlusion refer to?

<p>A tooth to tooth relation providing maximum intercuspidation (A)</p> Signup and view all the answers

What is the purpose of recording centric relation?

<p>It provides a repeatable and recordable guide for developing centric occlusion in complete dentures (C)</p> Signup and view all the answers

What is Horizontal Jaw Relation also known as?

<p>Centric relation (A)</p> Signup and view all the answers

What does Horizontal Jaw Relation refer to?

<p>Relationship of mandible to maxilla in antero-posterior direction (B)</p> Signup and view all the answers

What does Reference Relation provide?

<p>A more definite position than vertical relation, independent of tooth contact. (C)</p> Signup and view all the answers

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