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A novel model to evaluate the fatigue resistance of NiTi instruments: Rotational and axial movement at body temperature.
Baird, Evan; Huang, Xiangya; Liu, He; Hieawy, Ahmed; Ruse, N Dorin; Wang, Zhejun; Haapasalo, Markus; Shen, Ya.
Afiliación
  • Baird E; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
  • Huang X; Department of Conservative Dentistry & Endodontics, Guanghua School of Stomatology, Guangdong Province Key Laboratory of Stomatology, Sun Yat-Sen University Guangzhou, Guangzhou, China.
  • Liu H; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
  • Hieawy A; Department of Stomatology, Affiliated Hospital of Jining Medical University, Jining, China.
  • Ruse ND; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
  • Wang Z; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
  • Haapasalo M; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
  • Shen Y; Division of Endodontics, Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada.
Aust Endod J ; 49 Suppl 1: 301-307, 2023 Sep.
Article en En | MEDLINE | ID: mdl-36571470
To develop a model to test cyclic fatigue resistance of TruNatomy instruments undergoing rotational and axial movement at body temperature. A total of 288 Prime and Medium instruments were subjected to cyclic fatigue testing in simulated canals (at 37°C) using a model with either rotational movement only or rotational and axial movement simultaneously. Two different sized canals and three different types of curvatures were tested for each instrument (30/0.04 and 30/0.06 for Prime; 38/0.04 and 40/0.06 for Medium). The number of cycles to failure (fatigue resistance) was recorded. Rotational and axial movement of instruments led to greater fatigue resistance compared with rotational movement alone. Apical curvatures led to greater fatigue resistance than curvatures in the coronal and middle third. The developed dynamic model at body temperature to evaluate fatigue resistance of instrument closer simulates clinical scenarios.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura Corporal / Instrumentos Dentales Idioma: En Revista: Aust Endod J Asunto de la revista: ODONTOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Australia
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Temperatura Corporal / Instrumentos Dentales Idioma: En Revista: Aust Endod J Asunto de la revista: ODONTOLOGIA Año: 2023 Tipo del documento: Article País de afiliación: Canadá Pais de publicación: Australia