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The selection of maxillary anterior teeth width in relation to facial measurements at different types of face form

Author: Nagham H Kassab
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2005 Volume: 5 Issue: 5 Pages: 15-23
Publisher: Mosul University جامعة الموصل

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Abstract

It is difficult to determine the dimensions of maxillaryanterior teeth for edentulous patient when pre–extraction recordsare not available. Therefore, the present clinical study wascarried out to evaluate the relationships between maxillaryanterior teeth measurements [canine arc distance (CARCD),central incisor width] and certain horizontal facial parameterswhich included: [(interzygomatic, inner and outer canthus andinter-pupillary) distances in addition to that (interalar, mouthand philtrum of upper lip) widths], and also to determine thoserelations at different types of facial form in both sexes for thebest selection of maxillary anterior teeth widths.The facial and dental measurements were obtained directlyfrom 100 Iraqi undergraduate dental students by using anelectronic digital vernier caliper. Depending on facial index foreach subject, the larger percentage of students (80%) had aleptoprosopic (long and narrow) face in which their facialindices were 90 or above, whereas 4% of students had a euryprosopic(square) face in which their facial indices 82.1–83.1;while 16% of those students had a mesoprosopic (ovoid) facein which their facial indices 85.3–89.5.The Pearson Product Moment Correlation Coefficient wasused for all relationships and the results revealed that there wasa significant correlation between CARCD and mouth width inmales with leptoprosopic face while in those with mesoprosopicface the CARCD was significantly correlated with bothmouth and interzygomatic widths but with higher correlationcoefficient value being with mouth width, the maxillary centralincisor width was significantly correlated with both innercanthal distance and philtrum width of upper lip but with highercorrelation coefficient value being with first one. In femaleswith leptoprosopic face, the CARCD had a high significantcorrelation coefficient with inner canthal distance; while inthose with mesoprosopic face the maxillary central incisorwidth was significantly correlated with interzygomatic distancewhile the other correlations in different types of face form forboth sexes were found to be in low magnitude and were notsignificant.On the above mentioned results, this study demonstratedthat certain horizontal facial parameters could be used as aguide in maxillary anterior denture teeth selection to achievethe best esthetic result in each type of face form in both sexes

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