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International Journal of Morphology

On-line version ISSN 0717-9502

Abstract

FUENTES F, Ramón; BORIE E, Eduardo; BUSTOS M, Luis  and  THOMAS M, David. Third Molar Morphometry: a Study of 55 Cases. Int. J. Morphol. [online]. 2009, vol.27, n.4, pp.1285-1289. ISSN 0717-9502.  http://dx.doi.org/10.4067/S0717-95022009000400050.

Third molars are the teeth with the highest variation of shape, size, number and position. Fifty five molars were extracted from patients of Temuco, Chile, which were classified by age, gender and location jaw. The following parameters were measured: vestibular-palatine diameter (VP), mesial-distal (MD) diameter, coronary height (C-O), root length and total length. Additionally, number of roots and cusps were quantified for each molar identifying those with abnormal molar shape. The data were statistically analyzed and tabulated. The results showed that upper molars have higher total length than lower ones, predominating those with a one fused root. Regarding to crown shape, there was a predominance of tricuspid shape prevailing V-P diameter for upper third molars and tetracuspid for lower, noting M-D diameter. Coronary length was higher for upper molars, but root length was higher for lower molars than upper ones.

Keywords : Third molar; Morphometry; Antrophology; Dentistry.

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