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  Arranging Artificial Teeth

To assist compliance with Gerber’s requirements, there are seven anatomic landmark guidelines that should be followed when placing teeth:
1. The incisive papilla is an invaluable reference point for correct placement of the maxillary anterior teeth and the anterior arch form. The maxillary anterior teeth lie to the facial of the incisive papilla. In the young, the line connecting the tips of the canines transverses the incisive papilla. As the alveolar ridge is increasingly resorbed with increasing years since loss of the teeth, the line moves posteriorly and may eventually pass through the posteriorly extent of the papilla.


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2. The distance from the middle of the incisive papilla to the labial surface of the maxillary central incisor is typically 8 mm. Because this distance is fixed, the apparent curvature of the anterior arch form will increase as a person experiences more alveolar ridge resorption.
3. The labial surface of the canine is normally 10.5 mm from the lateral aspect of the anterior rugae.

 

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4. The distance between the tips of the canines is the same as the width of the base of the nose.
5. Canines are immediately inferior to the side of the nose. They must not be positioned directly at the corners of the mouth when the patient smiles, so the "buccal corridor"—the facial surfaces of the premolars and first molar—can be visualized between the cuspid and the corners of the mouth.
6. The width of the central incisor approximates the width of the philtrum.
7. First premolars appear at the head of the "buccal corridor" and behind the canine.

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