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Bolton's ratio

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Comparison Of Tooth Size Discrepancy Of Three Main Ethnics In Malaysia With Bolton's Ratio, Rahman A. N. A. A., Othman S. A. Dec 2011

Comparison Of Tooth Size Discrepancy Of Three Main Ethnics In Malaysia With Bolton's Ratio, Rahman A. N. A. A., Othman S. A.

Siti Adibah Othman

The objective of this study was to investigate the applicability of Bolton's ratios in orthodontic population of Malaysian main ethnics; Malay, Chinese and Indians. Ninety convenient samples consisting of 30 pre-orthodontic study casts from each ethnic that fits the inclusion criteria were selected. The greatest mesiodistal widths of each tooth from six to six for overall ratio and three to three for anterior ratio were measured using a digital callipers linked to Hamilton Arch Tooth System software to the nearest 0.01mm. Means of the ratios were calculated using Bolton analysis. One sample t-test statistic analysis was carried out to compare …