title: A practice-based, randomized, controlled clinical trial of a new resin composite restorative: one-year results.
abstract: This study evaluated the performance of a low-shrinking resin composite compared with an amalgam for restoration of Class I and II cavities of moderate size in posterior teeth in a general practice setting. Fifty-two pairs of test and control restorations were placed in 49 patients. Clinical evaluations and assessments of replica models were carried out at baseline, six months and one year. Patients recorded their level of satisfaction with the restorations by means of visual analog scales. Apart from one control restoration that failed due to a fractured cusp, all of the restorations reviewed at six months and one year were intact with no unacceptable scores for any of the evaluation criteria. It was concluded that the resin composite evaluated, when used in conjunction with the recommended adhesive system, may be an appropriate alternative to amalgam in the restoration of posterior teeth over one year in clinical service.
authors.affiliation: Unit of Operative Dentistry and Endodontology, University of Manchester, UK. margaret.wilson@man.ac.uk
authors.forename: M A
authors.initials: MA
authors.lastname: Wilson
authors.forename: A J
authors.initials: AJ
authors.lastname: Cowan
authors.forename: R C
authors.initials: RC
authors.lastname: Randall
authors.forename: R J
authors.initials: RJ
authors.lastname: Crisp
authors.forename: N H F
authors.initials: NH
authors.lastname: Wilson
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D017438:Bisphenol A-Glycidyl Methacrylate; D016009:Chi-Square Distribution; D003188:Composite Resins; D003723:Dental Amalgam; D018772:Dental Marginal Adaptation; D003793:Dental Restoration, Permanent / Q000379:methods*; D017220:Dentin-Bonding Agents; D006801:Humans; D008875:Middle Aged; D008963:Molar; D017060:Patient Satisfaction; D016037:Single-Blind Method; D018709:Statistics, Nonparametric; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D017220:Dentin-Bonding Agents; C444701:Filtek Z250; C115612:single bond; D017438:Bisphenol A-Glycidyl Methacrylate; D003723:Dental Amalgam