title: Class II composite resin restorations: a three-year clinical study of six different posterior composites.
abstract: Class II restorations of five light-cured posterior composite materials (Occlusion, P 30, Fulfil, Profile and Heliomolar) were followed for three years, and restorations of another material (Distalite) were followed for two years. Twenty-four dentists from The Public Dental Health Service in the county of Bohuslän placed 242 Class II restorations in 213 patients. The restorations were evaluated after three years using the USPHS criteria. Stone casts were used to categorize quantitatively the amount of occlusal wear according to the Leinfelder method. No differences could be found between the different materials regarding clinical properties. The failure rate (USPHS ratings Charlie) was low, 6.5 per cent. The average occlusal wear after three years for most of the materials was about 100 micrometers. Heliomolar showed a better resistance to wear compared with the other materials.
authors: Department of Pedodontics, Postgraduate Dental Education Center, Orebro, Sweden.
authors: S A
authors: SA
authors: Lundin
authors: B
authors: B
authors: Andersson
authors: G
authors: G
authors: Koch
authors: C G
authors: CG
authors: Rasmusson
mesh_terms: D000134:Acid Etching, Dental; D000180:Acrylic Resins / Q000737:chemistry; D000293:Adolescent; D000328:Adult; D000368:Aged; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate; D003188:Composite Resins / Q000737:chemistry; D001840:Dental Bonding; D003736:Dental Cavity Lining; D003793:Dental Restoration, Permanent / Q000145:classification; D006801:Humans; D008875:Middle Aged; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D013499:Surface Properties; D014520:Urethane / Q000737:chemistry
chemical_list: D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; C513709:Distalite; C513708:Heliomolar; D011109:Polymethacrylic Acids; D011140:Polyurethanes; C056413:Occlusin; C048711:P-30 composite resin; D014520:Urethane; D017438:Bisphenol A-Glycidyl Methacrylate; C033469:profile resin; C046503:formula F 70