palatal index

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The ratio of the length of the hard palate (palatomaxillary length) to its width (palatomaxillary width) multiplied by 100. The measurement of the length is from the most anterior point on the maxillary anterior process in the midline (alveolar point) to the middle of a transverse line touching the posterior borders of the two maxillae; the measurement of the width is from the outer borders of the alveolar arch just above the middle of the second permanent molar tooth. It is used in anthropology to define the varying forms of the dental arch and palate.

Subjects: Dentistry.

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