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The significance of biometric parameters in determining anterior teeth width

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Author(s): Strajnić Ljiljana | Vuletić Ivana | Vučinić Predrag

Journal: Vojnosanitetski Pregled
ISSN 0042-8450

Volume: 70;
Issue: 7;
Start page: 653;
Date: 2013;
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Keywords: jaw | edentulous | dental prosthesis | anthropometry | esthetics | dental | anatomy

ABSTRACT
Background/Aim. An important element of prosthetic treatment of edentulous patients is selecting the size of anterior artificial teeth that will restore the natural harmony of one’s dentolabial structure as well as the whole face. The main objective of this study was to determine the correlation between the inner canthal distance (ICD) and interalar width (IAW) on one side and the width of both central incisors (CIW), the width of central and lateral incisors (CLIW), the width of anterior teeth (ATW), the width between the canine cusps (CCW), which may be useful in clinical practice. Methods. A total of 89 subjects comprising 23 male and 66 female were studied. Their age ranged from 19 to 34 years with the mean of 25 years. Only the subjects with the preserved natural dentition were included in the sample. All facial and intraoral tooth measurements were made with a Boley Gauge (Buffalo Dental Manufacturing Co., Brooklyn NY, USA) having a resolution of 0.1mm. Results. A moderate correlation was established between the interalar width and combined width of anterior teeth and canine cusp width (r = 0.439, r = 0.374). A low correlation was established between the inner canthal distance and the width of anterior teeth and canine cusp width (r = 0.335, r = 0.303). The differences between the two genders were highly significant for all the parameters (p < 0.01). The measured facial distances and width of anterior teeth were higher in men than in women. Conclusion. The results of this study suggest that the examined interalar width and inner canthal distance cannot be considered reliable guidelines in the selection of artificial upper anterior teeth. However, they may be used as a useful additional factor combined with other methods for objective tooth selection. The final decision should be made while working on dentures fitting models with the patient’s consent.
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