title: Efficiency in bracket bonding with the use of pretreatment methods to tooth enamel before acid etching: sodium hypochlorite vs. hydrogen peroxide techniques.
abstract: Bond failures are produced by the existence of biofilm on the tooth surface. Because biofilm is impermeable, it prevents contact in many areas, reducing the etching effect which selectively dissolves calcified tissues but does not seem to eliminate biofilm from the tooth surface, and thus the bond between the tooth and the bracket is not strong enough. The aim of this study is to compare bracket bonding efficiency with two dental surface pretreatments: sodium hypochlorite vs. hydrogen peroxide techniques. This was a cross-sectional, comparative, in vitro study. Seventy-five premolars extracted for orthodontic purposes were evaluated. They were divided into three groups of 25 teeth and assigned randomly toone of the pretreatment techniques (5.25%sodium hypochlorite or 3.5% hydrogen peroxide) or to a control group. The most efficient pretreatment technique for bonding to brackets was sodium hypochlorite, with an average of 17.15 (kg/F). Significant differences were observed between groups (p=0.0001). The post hoc bond strength test showed statistically significant differences between the sodium hypochlorite technique and the control group (p=0.0001). The sodium hypochlorite technique improves bracket adhesion to tooth enamel.
authors.affiliation: Departament of Stomatological Sciences, Benemeritus Autonomous University of Puebla.
authors.forename: Hermann
authors.initials: H
authors.lastname: Rivera-Prado
authors.affiliation: Departament of Stomatological Sciences, Benemeritus Autonomous University of Puebla.
authors.forename: Ángeles
authors.initials: Á
authors.lastname: Moyaho-Bernal
authors.affiliation: Departament of Stomatological Sciences, Benemeritus Autonomous University of Puebla.
authors.forename: Alejandro
authors.initials: A
authors.lastname: Andrade-Torres
authors.affiliation: Departament of Stomatological Sciences, Benemeritus Autonomous University of Puebla.
authors.forename: Guillermo
authors.initials: G
authors.lastname: Franco-Romero
authors.affiliation: Division of Health Research, High Speciality Medical Unit, Hospital of Traumatology and Orthopedics, Mexican Institute of Social Security in Puebla, Mexico.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Montiel-Jarquín
authors.affiliation: Division of Health Research, High Speciality Medical Unit, Hospital of Traumatology and Orthopedics, Mexican Institute of Social Security in Puebla, Mexico.
authors.forename: Claudia
authors.initials: C
authors.lastname: Mendoza-Pinto
authors.affiliation: Division of Health Research, High Speciality Medical Unit, Hospital of Traumatology and Orthopedics, Mexican Institute of Social Security in Puebla, Mexico.
authors.forename: Eugenio
authors.initials: E
authors.lastname: García-Cano
authors.affiliation: Division of Health Research, High Speciality Medical Unit, Hospital of Traumatology and Orthopedics, Mexican Institute of Social Security in Puebla, Mexico.
authors.forename: Ana K
authors.initials: AK
authors.lastname: Hernández-Ruíz
mesh_terms: D000134:Acid Etching, Dental; D003430:Cross-Sectional Studies; D001840:Dental Bonding; D003743:Dental Enamel; D003799:Dental Stress Analysis; D006861:Hydrogen Peroxide; D016910:Orthodontic Brackets; D019279:Resin Cements; D033081:Shear Strength; D012973:Sodium Hypochlorite; D013499:Surface Properties
chemical_list: D019279:Resin Cements; D006861:Hydrogen Peroxide; D012973:Sodium Hypochlorite