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Push-out bond strength of different tricalcium silicate-based filling materials to root dentin
Stefaneli Marques, Jorge Henrique; Silva-Sousa, Yara Teresinha Corrêa; Rached-Júnior, Fuad Jacob Abi; Macedo, Luciana Martins Domingues de; Mazzi-Chaves, Jardel Francisco; Camilleri, Josette; Sousa-Neto, Manoel Damião.
  • Stefaneli Marques, Jorge Henrique; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Silva-Sousa, Yara Teresinha Corrêa; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Rached-Júnior, Fuad Jacob Abi; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Macedo, Luciana Martins Domingues de; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Mazzi-Chaves, Jardel Francisco; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Camilleri, Josette; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
  • Sousa-Neto, Manoel Damião; Universidade de Ribeirão Preto - Unaerp. School of Dentistry. Ribeirão Preto. BR
Braz. oral res. (Online) ; 32: e18, 2018. tab, graf
Article in English | LILACS | ID: biblio-889488
Responsible library: BR1.1
ABSTRACT
Abstract The aim of this study was to evaluate the bond strength of different triccalcium silicate cements to retrograde cavity using a push out test. Thirty maxillary central incisors were shaped using #80 hand files and sectioned transversally. Root slices were obtained from the apical 4 mm after eliminating the apical extremity. The specimens were embedded in acrylic resin and positioned at 45° to the horizontal plane for preparation of root-end cavities with a diamond ultrasonic retrotip. The samples were divided into three groups according to the root-end filling material (n = 10) MTA Angelus, ProRoot MTA and Biodentine. A gutta-percha cone (#80) was tugged-back at the limit between the canal and the root-end cavity. The root-end cavity was filled and the gutta-percha cone was removed after complete setting of the materials. The specimens were placed in an Instron machine with the root-end filling turned downwards. The push-out shaft was inserted in the space previously occupied by the gutta-percha cone and push out testing was performed at a crosshead speed of 1.0 mm/min. There was no statistically significant difference in resistance to push out by the materials tested (p > 0.01). MTA Angelus and ProRoot MTA showed predominantly mixed failure while Biodentine exhibited mixed and cohesive failures. The tricalcium silicate-based root-end filling materials showed similar bond strength retrograde cavity.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Oxides / Root Canal Filling Materials / Bismuth / Dental Bonding / Silicates / Calcium Compounds / Dental Pulp Cavity / Dentin Type of study: Evaluation studies Limits: Humans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de Ribeirão Preto - Unaerp/BR

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Full text: Available Index: LILACS (Americas) Main subject: Oxides / Root Canal Filling Materials / Bismuth / Dental Bonding / Silicates / Calcium Compounds / Dental Pulp Cavity / Dentin Type of study: Evaluation studies Limits: Humans Language: English Journal: Braz. oral res. (Online) Journal subject: Dentistry Year: 2018 Type: Article Affiliation country: Brazil Institution/Affiliation country: Universidade de Ribeirão Preto - Unaerp/BR