Evaluation of in vitro resistance of different 2.0-mm titanium plates on the mandibular angle sectioning

Springer Science and Business Media LLC - Tập 19 - Trang 65-70 - 2014
Marco Aurélio Kenichi Yamaji1, Patrício José de Oliveira Neto2, Michel de Campos Ribeiro1, Lucas Cavalieri Pereira2, Márcio de Morais2, Cássio Edvard Sverzut1, Alexandre Elias Trivellato1
1Department of Oral and Maxillofacial Surgery and Periodontology. School of Dentistry of Ribeirão Preto, University of São Paulo, São Paulo, Brazil
2Oral and Maxillofacial Surgeon Department, School of Dentistry of Piracicaba, State University of Campinas, Campinas, Brazil

Tóm tắt

The purpose of this study was to compare, by mechanical in vitro testing, a regular 5-hole plate and a long 4-hole plate with a regular 4-hole plate, applied to stabilize a simulated mandibular angle fracture. The plates from the 2.0-mm titanium-based system were adapted and stabilized passively in the same site in both groups using four screws, 6 mm long. During the resistance-to-load test, the force was applied perpendicular to the occlusal plane at three different points: first molar at the plated side, first molar at the contralateral side, and between the central incisors. The regular 5-hole plates and longer 4-hole plates were superior to the regular 4-hole plates. Furthermore, no statistically significant difference was found between the regular 5-hole plates and long 4-hole plate. The length and shape of plates did not interfere with the effectiveness to stabilize the fragments.

Tài liệu tham khảo

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