Changes in Water Sorption and Solubility of Dental Adhesive Systems after Cigarette Smoke

Table 1

The manufacturer’s composition, classification, and batch number of adhesive systems used in this study.

Adhesive systems	Classification	Composition (wt% and # batch numbers)
Adper Scotchbond Multipurpose Adhesive (3 M/ESPE, St. Paul, MN, USA)	Conventional adhesive	BISGMA (60–70%); HEMA (30–40%), triphenylantimony (<0.5%) (no. 88940 and no. 22072).
Adper Scotchbond Multipurpose Primer (3 M/ESPE)	Conventional adhesive	HEMA (35–45%); water (40–50%); copolymer of acrylic and itaconic acids (10–20%) (no. 21785).
Adper Single Bond Plus Adhesive (3 M/ESPE)	Two-step etch-and-rinse	BISGMA (10–20%); HEMA (5–15%); UDMA (1–5%); ethyl alcohol (25–35%); glycerol 1,3 dimethacrylate (5–10%); copolymer of acrylic and itaconic acids (5–10%); water (<5% by wt); silane-treated silica (no. 67023BR).
Adper Easy One Adhesive (3 M/ESPE)	One-step self-etch	BISGMA (15–25%); HEMA (15–25%); ethanol (10–15%); water (10–15%); phosphoric acid-6-methacryloxy-hexylesters (5–15%); silane-treated silica (8–12%); 1,6-hexanediol dimethacrylate (5–10%); copolymer of acrylic and itaconic acid (1–5%); (dimethylamino)ethyl methacrylate (1–5%); CQ (1–3%); TPO (1–3%) (nos. 392306 and 404261).

Abbreviations: Bis-GMA: bisphenol A diglycidyl ether dimethacrylate; HEMA: 2-hydroxyethyl methacrylate; UDMA: diurethane dimethacrylate; CQ: camphorquinone; TPO: 2,4,6-trimethylbenzoyldiphenylphosphine oxide.