Dr. Mario Cappellette Jr
Orthodontics L.4 Orthodontics Cone beam computed tomography Maxillary hypoplasia Dental Radiography and Imaging Orthodontics and Dentofacial Orthopedics Craniofacial Medical physics Adenoid hypertrophy Computed radiography Dental occlusion Computed tomography Radiography Cone beam ct Congenital malformations Cephalometry Maxilla Complementary and alternative medicine Oral Surgery

Bio

Dr. Mario Cappellette Jr is a distinguished orthodontist and researcher affiliated with the Universidade Federal de Sao Paulo (UNIFESP/EPM) in Sao Paulo, Brazil. With a PhD and DDS, his research focuses on orthodontic mechanics, including friction in self-ligating brackets and the impact of rapid maxillary expansion on nasomaxillary complex volume. He has contributed to over 40 publications, accumulating nearly 300 citations, and serves as a reviewer for the Global Journal of Medical Research. His work reflects a deep commitment to advancing dental and orthodontic science.

Educational Journey

PhD, DDS

Experience

Fundação de Apoio à Universidade Federal de São Paulo

Professor Afiliado

2018 - 2024 • Departamento de Otorrinolaringologia - Cabeça e Pescoço

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Research

In Vitro Comparison of Friction Generated by Various Models of Self-Ligating and Conventional Brackets while Performing Retraction with Sliding Mechanics

Article November 13, 2017

Introduction: In vitro studies suggest that certain variables such as friction coefficient, archwire size and force decay affect the effectiveness of sliding mechanics. To maximize the efficiency of sliding mechanics one should seek to control these variables. Objective: This in vitro study aimed to compare frictional forces in several models of self-ligating brackets, conventional systems, as well as different ways to tie the wire to the brackets during a simulation of sliding mechanics using 0.019"X0.025" stainless steel wire. Material and methods: The study evaluated the levels of dynamic and static friction in six different types of brackets and three different ligation systems were used with conventional brackets: elastomeric modules, unconventional elastomeric ligature low friction system, and 0.20mm stainless steel-ligature. Results: The results showed that for both static and dynamic friction all other ligating systems exhibited statistically less friction than Gemini brackets with conventional elastomeric. Systems with lower levels of friction were as follows: SmartClip (E 0.08N; D 0.00N), Gemini brackets with Leone ligature (E 0.08N; D 0.04N), and Vision LP (E 0.04N; D 0.00N). Conclusion: During sliding mechanics frictional forces generated by the conventional ligation system were significantly higher than the forces generated by self-ligating brackets and other ligation systems.