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DEN203: Prosthetic Dentistry II - Jaw Relations

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DEN203: Prosthetic Dentistry II - Jaw Relations

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Questions and Answers

What does the term 'Jaw Relations' refer to?

The occlusion of the teeth

Any spatial relationship of the maxilla to the mandible (correct)

The length of the face

The balanced tonic contraction of the opening and closing muscles

What maintains the vertical dimension (VD) according to the text?

Tooth acts as a vertical stop

Musculature in a state of minimal tonic contraction

Severe discomfort in both TMJ and muscles of mastication

Occlusion of the teeth or balanced tonic contraction of opening and closing muscles (correct)

What are the two important guides for deciding vertical relation mentioned in the text?

Vertical dimension of rest or physiologic rest position (VDR) and Vertical dimension of occlusion (VDO) (correct)

Muscular tonicity and jaw separation

Length of the face and tooth occlusion

Spatial relationship of maxilla to mandible and vice versa

What happens if the vertical dimension (VD) is not measured accurately?

The joint will be strained (B) Signup and view all the answers

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

Vertical separation of the jaws when opening and closing muscles are in minimal tonic contraction (C) Signup and view all the answers

What is responsible for maintaining vertical dimension (VD) as per the text?

Tooth acting as a vertical stop (B) Signup and view all the answers

What does altering the Vertical Dimension (VD) lead to, according to the text?

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

What is related to patient's esthetical appearance according to the text?

Vertical dimension (VD) (A) Signup and view all the answers

What does 'Vertical dimension of occlusion' refer to as mentioned in the text?

The length maintained by occlusion or musculature (A) Signup and view all the answers

What is responsible for maintaining posture according to the text?

Vertical separation maintained by opening and closing muscles (A) Signup and view all the answers

What is the physiologic rest position of the mandible?

Position when the head is upright, muscles are in tonic contraction, and condyles are in a neutral unstrained position (C) Signup and view all the answers

What is the purpose of recording centric relation?

It is a bone to bone relation and serves as a reliable guide for developing centric occlusion in complete dentures (C) Signup and view all the answers

What happens with an increase in vertical dimension of occlusion (VDO)?

Chin-nose distance increases and patients may have an appearance of open mouth (B) Signup and view all the answers

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

"Free way space" (A) Signup and view all the answers

What is centric relation?

The most retruded relation of the mandible to the maxilla when the condyles are in the most posterior unrestrained position (B) Signup and view all the answers