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Table 2 Clinical protocol of adhesive application in the three groups tested

From: Influence of different application protocols of universal adhesive system on the clinical behavior of Class I and II restorations of composite resin – a randomized and double-blind controlled clinical trial

TechniqueClinical sequence
Etch-and-rinse (ER)- Total acid etching for 30s in enamel and 15s in dentin;
- Abundant washing for 10s with water jet and removal of humidity excess with absorbent paper;
- Application of the adhesive for 20s;
- Air jet for 5s;
- Photopolymerization for 20s.
Selective Enamel Etch (SEE)- Selective acid etching in enamel for 30s;
- Abundant washing for 10s with water jet and removal of humidity excess with absorbent paper;
- Application of the adhesive for 20s;
- Air jet for 5s;
- Photopolymerization for 20s.
Self-Etch (SE)- Application of the adhesive for 20s;
- Air jet for 5s;
- Photopolymerization for 20s.