Fig. 1From: 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 trialCharacterization of the participants of the study (nP- number of Participants; nR- number of Restorations; ER- Etch-and-rise; SEE- Selective Enamel Etch; SE- Self-Etch; T1- first evaluation; T2- second evaluation)Back to article page