engleski

Appropriate proportions as guidelines in selection of anterior denture teeth

Aim To examine width-to-length and tooth-to-tooth width ratios of maxillary anterior teeth and to compare the obtained proportions with the width- to-length ratio of the hard palate, the Golden Proportion and the 75 % Proportion. Methods The widths and the lengths of the clinical crowns of the maxillary anterior teeth were measured. Hard palate width and length were measured. Width-to- length ratio of the hard palate was calculated, as well as width-to-length ratios of the maxillary anterior teeth. Further, tooth-to-tooth width ratios were calculated for all maxillary anterior teeth. Results Comparison between width-to-length ratios of the maxillary anterior teeth and the 75 % Proportion, the Golden Proportion and the proportion of hard palate revealed statistically significant differences (p<0.05). Tooth-to-tooth width ratio of maxillary anterior teeth were significantly different (p<0.05) from the Golden Proportion. Conclusion The ratios obtained in this study could be helpful in clinical practice and in artificial teeth mould manufacture: widthto- length ratio for maxillary lateral incisor 82 % and for maxillary central incisor 91%, the tooth- to-tooth width ratios ranged from 78 % (between lateral and central incisor) to 91% (between canine and central incisor). The Golden Proportion and the 75 % Proportion should not be used in clinical practice for the selection of maxillary anterior teeth.

maxillary anterior teeth ; tooth crown proportion ;

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