title: Incisal angle adhesive resins: a 5-year clinical survey of two materials.
abstract: Two hundred and seventy-eight restoration examinations were made of Concise and Nuva-fil resins used to restore fractured incisors, over periods of up to 5 years. Following the placement of wide bevels along the fracture margins, retention was achieved by using acid-etching with bonding resins and by pins in some instances. Although the short-term results were usually reasonable, provided that the materials had been placed and finished correctly, longer-term findings revealed problems of resin darkening and corrosion staining of dentine from exposed pins. The Nuva-Fil restorations were generally superior to the Concise restorations.
mesh_terms: D000180:Acrylic Resins; D017438:Bisphenol A-Glycidyl Methacrylate; D003116:Color; D003188:Composite Resins; D003442:Crowns; D003781:Denture Retention; D005069:Evaluation Studies as Topic; D006801:Humans; D007180:Incisor / Q000293:injuries; D013499:Surface Properties; D013997:Time Factors; D014082:Tooth Fractures / Q000628:therapy*
chemical_list: D000180:Acrylic Resins; D003188:Composite Resins; D017438:Bisphenol A-Glycidyl Methacrylate; C029635:Nuva-Fil