Clearfil SE Bond adhesive system (Kuraray Noritake Dental; Sakazu, Kurashiki, Okayama, Japan) Batch No. Primer: 9N0168 Adhesive: 9U0269

Primer: 10-MDP, HEMA, hydrophilic methacrylate, dl-camphorquinone, N,N-dihydroxyethyl-p-toluidine, water. Bond: 10-MDP, bis-GMA, HEMA, hydrophobic methacrylate, dl-camphorquinone, N,N-dihydroxyethyl-p-toluidine, silanized colloidal silica

2.0

1) Active application of primer to the dry dentin surface for 20 s

2) Gentle air-jet drying for 5 s

3) Application of bonding agent

4) Gentle air-jet drying for 5 s

5) Light-curing for 10 s

Sodium bicarbonate (Biodinâmica Química e Farmacêutica LTDA; Ibiporã, Paraná, Brazil) Batch No.: 321/15

Sodium bicarbonate (NaHCO₃) and flavouring agents

8.0

Dilution: 200 mg sodium bicarbonate in 10 mL normal saline

1) Active application to the dry dentin surface for 60 s

2) Removal of excess solution

Chlorhexidine (FGM Dentscare LTDA; Joinville, Santa Catarina, Brazil) Batch No.: 050815

2% chlorhexidine digluconate, deionized water, volatile surfactant

5.5 - 7

1) Active application to the dry dentin surface for 60 s

2) Removal of excess solution

Filtek Z350 XT (3M ESPE; St Paul, MN, USA) Batch No.: 1535700494

Silane-treated ceramic filler, bisphenol A-glycidyl methacrylate (bis-GMA), bisphenol A-polyethylene glycol diether dimethacrylate (bis-EMA), silane-treated silicon dioxide filler, silane-treated silica/zirconia filler, diurethane dimethacrylate, polyethylene glycol dimethacrylate, triethylene glycol dimethacrylate (TEG-DMA), 2,6-di-tert-butyl-p-cresol (BHT), pigments

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1) Composite resin build-up technique

2) Light-curing for 40 s