title: The 24-year clinical performance of porcelain laminate veneer restorations bonded with a two-liquid silane primer and a tri-n-butylborane-initiated adhesive resin.
abstract: This report describes the bonding technique and clinical course of porcelain laminate veneer restorations applied to discolored maxillary incisors and canines. The patient was an 18-year-old woman, and tooth reduction was limited to the enamel. Laminate veneer restorations were made with a feldspathic porcelain material (Cosmotech Porcelain). After try-in, enamel surfaces were etched with 65% phosphoric acid gel, and a tri-n-butylborane-initiated resin (Super-Bond C&B) was applied as a bonding agent. The inner surface of the restorations was etched with 5% hydrofluoric acid gel (HF Gel) and treated with a two-liquid silane primer (Porcelain Liner M), after which the Super-Bond resin was applied. Each restoration was seated with a dual-activated composite luting agent (Cosmotech Composite). After 24 years and 8 months, the restorations are functioning satisfactorily. The luting system and bonding technique described in this report are an option for seating laminate veneer restorations made of silica-based tooth-colored ceramics.
authors.affiliation: Private Practice.
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Nakamura
authors.forename: Hideo
authors.initials: H
authors.lastname: Matsumura
mesh_terms: D000293:Adolescent; D001896:Boron Compounds; D003738:Dental Cements; D003793:Dental Restoration, Permanent; D003801:Dental Veneers; D005260:Female; D006801:Humans; D012821:Silanes
chemical_list: D001896:Boron Compounds; D003738:Dental Cements; D012821:Silanes; C009523:tri-n-butylborane