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Quintessence Publishing: Journals: ORTHODONTICS
The Art and Practice of Dentofacial Enhancement

Formerly World Journal of Orthodontics

Edited by
Rafi Romano, DMD, MSc (Editor-in-Chief)

ISSN 2160-2999 (print) / ISSN 2160-3006 (online)

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Spring 2010
Volume 11 , Issue 1

Share Abstract:

Evaluation Of The Bolton Ratios On 3D Dental Casts Of Brazilians With Natural, Normal Occlusions

Renata Pilli Jóias, MSc/Leandro Gonçalves Velasco, DDS/Marco Antonio Scanavini, PhD/André Luis Ribeiro de Miranda, PhD/Danilo Furquim Siqueira, PhD

Pages: 67–70
PMID: 20209180

Aim: To evaluate the Bolton ratios in Brazilians with natural, normal occlusions. Methods: Thirty-five dental casts of Brazilian Caucasians with a natural, normal occlusion from the files of the Postgraduate Program in Orthodontics of the Methodist University of São Paulo were scanned in three dimensions. On the scanned images, the greatest mesiodistal distance of each tooth from right first molar to left first molar was measured with Geomagic Studio 5 software. The Bolton ratios were then calculated. Results: The anterior ratio amounted to 78.66% (SD ± 2.72) and the total ratio to 91.58% (SD ± 2.20). Conclusion: The anterior, but not the overall, ratio was significantly different from the ratio suggested by Bolton. World J Orthod 2010;11:67–70.

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