Gabriel Cury Batista Mendes1, Luis Eduardo Marques Padovan, Paulo Domingos Ribeiro-Júnior, Elisa Mattias Sartori, Laiz Valgas, Marcela Claudino. 1. *Former Masters Degree Student of Latin American Institute of Dental Research and Education (ILAPEO), Curitiba, Brazil. †Professor, Latin American Institute of Dental Research and Education (ILAPEO), Curitiba, Brazil. ‡Phd Student, Oral and Maxillofacial Department, São Paulo State University, Araçatuba, Brazil. §Professor, Latin American Institute of Dental Research and Education (ILAPEO), Curitiba, Brazil.
Abstract
PURPOSE: The aim of this study was to evaluate deformation, roughness, and mass loss of stainless steel, diamond-like carbon (DLC)-coated and zirconia drills after multiple osteotomies with sterilization procedures. MATERIALS AND METHODS: Drilling procedures were performed using stainless steel (G1), DLC-coated (G2), and zirconia (G3) drills. All groups were divided in subgroups 1, 2, 3, 4, and 5, corresponded to drills used 0, 10, 20, 30, and 40 times, respectively. RESULTS: No significant differences in mass and roughness were detected among all groups and subgroups. In SEM images, all groups revealed signs of wear while coating delamination was detected in G2. Drills from G1 displayed more irregular surface, whereas cutting edges were more regular in G3. CONCLUSION: Zirconia drills presented more regular surfaces whereas stainless steel drills revealed more severe signs of wear. Further studies must be performed to evaluate the putative influence of these findings in heat generation.
PURPOSE: The aim of this study was to evaluate deformation, roughness, and mass loss of stainless steel, diamond-like carbon (DLC)-coated and zirconia drills after multiple osteotomies with sterilization procedures. MATERIALS AND METHODS: Drilling procedures were performed using stainless steel (G1), DLC-coated (G2), and zirconia (G3) drills. All groups were divided in subgroups 1, 2, 3, 4, and 5, corresponded to drills used 0, 10, 20, 30, and 40 times, respectively. RESULTS: No significant differences in mass and roughness were detected among all groups and subgroups. In SEM images, all groups revealed signs of wear while coating delamination was detected in G2. Drills from G1 displayed more irregular surface, whereas cutting edges were more regular in G3. CONCLUSION: Zirconia drills presented more regular surfaces whereas stainless steeldrills revealed more severe signs of wear. Further studies must be performed to evaluate the putative influence of these findings in heat generation.
Authors: Alessandra Nogueira Porto; Álvaro Henrique Borges; Alex Semenoff-Segundo; Suzane A Raslan; Fábio Luis Miranda Pedro; Antônio Olavo Cardoso Jorge; Matheus Coelho Bandeca Journal: J Int Oral Health Date: 2015-05
Authors: József Szalma; Ole Klein; Bálint Viktor Lovász; Edina Lempel; Sára Jeges; Lajos Olasz Journal: Biomed Res Int Date: 2018-11-19 Impact factor: 3.411
Authors: Gaetano Marenzi; Josè Camilla Sammartino; Giuseppe Quaremba; Vincenzo Graziano; Andrea El Hassanin; Med Erda Qorri; Gilberto Sammartino; Vincenzo Iorio-Siciliano Journal: Biomed Res Int Date: 2018-06-06 Impact factor: 3.411