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Evaluation of the Effect of Enamel Deproteinization Combined with a Self-etching Primer on the Adhesion of Orthodontic Brackets: An In Vitro Study
Renan Morais Peloso1
Renata Cristina Gobbi de Oliveira1
Paula Cotrin1
Daniel Sundfeld Neto1
Ricardo Cesar Gobbi de Oliveira1
Fabricio Pinelli Valarelli1
Karina Maria Salvatore Freitas1
Authors Info & Affiliations
Abstract
Aim:
The study aimed to evaluate enamel deproteinization with sodium hypochlorite in the enamel conditioning using a self-etching primer for adhesion in orthodontic brackets.
Background:
The bonding in orthodontics plays a major role in the success of the treatment. The self-etching primers reduce the chair time and diminish the risk of saliva contamination.
Methods:
The sample comprised 80 bovines' incisors, divided into 4 groups according to the deproteinization process and adhesive system used: G1: enamel deproteinization + Transbond Plus self-etching primer + Transbond XT adhesive; G2: enamel deproteinization + 37% phosphoric acid + conventional primer + and Transbond XT adhesive; G3: Transbond Plus self-etching primer + Transbond XT adhesive; and G4: 37% phosphoric acid + conventional primer + Transbond XT adhesive. EMIC® DL 500 Universal Testing Machine was used for testing the shear bond strength of the samples.
Results:
Brackets bonded with self-etching primer showed greater adhesion force. The enamel deproteinization did not improve the bonding strength, regardless of the primer used.
Conclusion:
The deproteinization process does not improve the result of the adhesive bonding when using a self-etching primer in vitro.
