Abstract
abstract – The correlation between the total widths of the incisors and the widths and lengths of the dental arches was studied in 149 boys and 175 girls, aged 8 years 10 months to 11 years 10 months. Eighty‐two of the children were judged as having normal occlusion. The widths and lengths of the dental arches were positively correlated with the total widths of the incisors. The correlation coefficients were higher for the arch lengths than for the arch widths. The correlation was, however, only weak or moderate. Calculation of the width of the maxillary dental arch from the total widths of the incisors according to Pont's Index is of little diagnostic value because of the weak correlation between the variables. The determination coefficient between the total widths of the maxillary incisors and the anterior maxillary dental arch length was found to be 0.62, so that the total widths of the maxillary incisors is of some value for predicting the anterior dental arch length.
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