Selection of Artificial Teeth
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Questions and Answers

What does a vertical line along the lateral surface of the ala of the nose help determine?

  • Thickness of the anterior teeth
  • Position of the cervical necks
  • Width of the upper six anteriors (correct)
  • Length of the anterior teeth

What is used to estimate the width of the central incisor?

  • The length of the upper canine
  • The bizygomatic width (correct)
  • The distance between the commissures
  • The thickness of the anterior teeth

Where should the Cervical necks lie for aesthetic purposes?

  • At or above the high lip line (correct)
  • Below the low lip line
  • At or below the middle of the upper canine
  • At or above the bizygomatic width

What helps in determining the length of the anterior teeth?

<p>High &amp; low lip lines (C)</p> Signup and view all the answers

What determines the positions of the anterior teeth?

<p>Central line (A)</p> Signup and view all the answers

Selecting shorter teeth compromises esthetics: true or false?

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

The combined width of the six maxillary anteriors is 1/3 of the bizygomatic width: true or false?

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

A vertical line along the lateral surface of the ala of the nose determines the width of the upper six anteriors: true or false?

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

The distance measured between the two commissures represents the width of the upper six anteriors: true or false?

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

The cervical necks of the anterior teeth should lie below the high lip line: true or false?

<p>False (B)</p> Signup and view all the answers

Flashcards

Width of Upper Six Anteriors

A vertical line drawn along the side of the nose helps determine the ideal width of the upper six front teeth (central incisors, lateral incisors, and canines).

Central Incisor Width

Bizygomatic width, the distance between the cheekbones, acts as an indicator for the ideal width of the central incisor, the largest front tooth.

Cervical Necks Position

The necks of the front teeth should be positioned at or slightly above the high lip line (the line formed when a person smiles broadly).

Anterior Teeth Length

The high and low lip lines (formed by the upper and lower lips when a person smiles) help determine the appropriate length of the front teeth.

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Anterior Teeth Position

The central line, a vertical line that divides the face in half, is used to establish the correct position of the front teeth ensuring symmetry and balance.

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Short Anterior Teeth

It is not aesthetically pleasing to have overly short teeth. They can make the smile appear unnatural and affect the overall balance of the face.

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Combined Width of Maxillary Anteriors

The combined width of the six maxillary anteriors (upper front teeth) should ideally be about one-third of the bizygomatic width (the width of the face measured between the cheekbones).

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Vertical Line & Anterior Width

The vertical line along the lateral surface of the ala of the nose (the side of the nose) actually does help determine the width of the upper six anteriors. It is a guide for ideal teeth width.

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Commissure Distance

The distance measured between the two commissures (corners of the mouth) reflects the width of the upper six anteriors.

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Cervical Necks & High Lip Line

Aesthetically, the cervical necks of the anterior teeth should be positioned at or slightly above the high lip line, not below it. This creates a more balanced and natural appearance.

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