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Interalar width as a guide in denture tooth selection.

W Hoffman, T J Bomberg, R A Hatch

    The Journal of Prosthetic Dentistry
    |February 1, 1986
    PubMed
    Summary
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    The interalar width (IAW) shows a moderate correlation with intercanine tooth width (ICTW) and a weaker correlation with the arc distance between maxillary canines (ARCD). These findings are relevant for complete denture selection and arrangement.

    Area of Science:

    • Dentistry
    • Anthropometry

    Background:

    • Accurate selection and arrangement of artificial teeth are crucial for complete dentures.
    • Facial and dental measurements inform prosthetic tooth selection.

    Purpose of the Study:

    • To determine the relationship between interalar width (IAW) and maxillary anterior tooth measurements.
    • To assess the correlation of IAW with intercanine tooth width (ICTW) and arc distance between maxillary canines (ARCD).

    Main Methods:

    • Measurements of IAW, ICTW, and ARCD were taken from subjects.
    • Statistical analysis, including correlation coefficients, was used to evaluate relationships.

    Main Results:

    • The mean ICTW was 3% greater than the mean IAW.
    • The mean ARCD was 31% greater than the mean IAW.

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  • A correlation coefficient of 0.413 was found between IAW and ICTW.
  • A correlation coefficient of 0.217 was observed between IAW and ARCD.

    • Conclusions:

    • Interalar width demonstrates a moderate correlation with intercanine tooth width.
    • Interalar width shows a weaker but definite correlation with the arc distance between maxillary canines.
    • These measurements may aid in the selection and arrangement of artificial teeth for complete dentures.