Table 1.
Materials used, composition and protocol of use
| Material (manufacturer, city, state, country) / Batch number | Composition (wt%) | Application protocol |
|---|---|---|
| Scotchbond Universal (3M Oral Care; St Paul, MN, USA)/ 1926600462 | 2-hydroxyethyl methacrylate (15–25), bis-GMA (15–25), ethanol (10–15), water (10–15), 1,10-decanediol phosphate methacrylate (1–10), acrylic copolymer and itaconic acid (1–5), camphorquinone (< 2) and N, N-dimethylbenzocaine (< 2)* | Apply the adhesive for 20 s (active application); apply a gentle jet of air over the adhesive for 5 s (solvent evaporation); photoactivate for 10 s. |
| Phosphoric acid 35% – Ultra-Etch (Ultradent Products, St. Jordan, Utah, USA)/ D00ZI | Phosphoric acid (< 40), aluminum cobalt blue spinel (< 1) and siloxane (< 1) * | Apply for 15 s; rinse for 30 S; dry with absorbent paper. |
| DMSO 99.5% (Valhoma; Tulsa, Oklahoma, USA)/SHBK9394 | Molecular formula: (CH3)2SO Molecular weight: 7.13 g/mol |
Under light pressure, apply in circular scrubbing movements using the disposable applicator for 60 s (Stape et al35–37); remove excess with absorbent paper. |
| Ethanol 99.5% P.A. (Anidrol Produtos para Laboratórios; Diadema, SP)/32526 | Molecular formula: (C2H6O) Molecular weight: 46.07 g/mol |
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| Resina Filtek Z350 XT (3M Oral Care), A2 Body Shade/ 1927000401, 1812800687, 1819400353 | Treated silanized ceramic (60–80), silane treated silica (1–10), UDMA (1–10), bisphenol A polyethylene glycol dimethacrylate diether (1–10), bis-GMA (1–10), zirconia ceramic (66402-68-4), surface modified with 3-methacryloxypropyltrimethoxysilane (2530-85-0), bulk material (1.96–5), polyethylene glycol dimethacrylate (< 5) and dimethacrylate triethylene glycol (0.2364)* | Increment thickness of 2 mm; photoactivation for 20 s each layer. |
Bis-GMA: bisphenol A diglycidyl ether dimethacrylate; UDMA: dimethacrylate diurethane. *Material Safety Data Sheet of the manufacturer.