title: The effect of amine-free initiator system and the polymerization type on color stability of resin cements.
abstract: We investigated the short-term (4 weeks) color stability of light-cure and dual-cure resin cements. Sixty disk-shaped test specimens of adhesive resin cement (10 × 1 mm) were prepared. One feldspathic porcelain test specimen (12 × 14 × 0.8 mm) was prepared from a prefabricated ceramic block. The feldspathic sample was placed on the resin cement disk and all the measurements were performed without cementation. Specific color coordinate differences (ΔL, Δa, and Δb), and the total color differences (ΔE) were calculated after immersion in distilled water for different periods. Data were compared using one-way analysis of variance (ANOVA) (α = 0.05). The test results revealed that different chemical structures and curing modes affected the ΔE values (P < 0.05). The highest ΔE values were obtained for RelyX Unicem dual-cure cement (2.14 ± 0.40), and the lowest for NX3 light-cure cement (0.78 ± 0.34). Third generation adhesive resin cement free of tertiary amines and benzoyl peroxide showed relatively slight color change in both test groups (light-cure and dual-cure resin cement). (J Oral Sci 58, 157-161, 2016).
authors.affiliation: Department of Prosthodontics, Faculty of Dentistry, Ondokuz Mayıs University.
authors.forename: Çağrı
authors.initials: Ç
authors.lastname: Ural
authors.forename: İbrahim
authors.initials: İ
authors.lastname: Duran
authors.forename: Numan
authors.initials: N
authors.lastname: Tatar
authors.forename: Özgür
authors.initials: Ö
authors.lastname: Öztürk
authors.forename: İsmail
authors.initials: İ
authors.lastname: Kaya
authors.forename: İdris
authors.initials: İ
authors.lastname: Kavut
mesh_terms: D000588:Amines / Q000737:chemistry*; D003116:Color; D006801:Humans; D058105:Polymerization; D019279:Resin Cements / Q000737:chemistry*
chemical_list: D000588:Amines; D019279:Resin Cements