Jan W V van Dijken1, Karin Sunnegårdh-Grönberg. 1. Dental Hygienist Education, Department of Odontology, Dental School, Umeå University, Umeå, Sweden. jan.van.dijken@odont.umu.se
Abstract
OBJECTIVE: To evaluate the 6-year performance of two glass fiber-reinforced packable resin composites in Class II cavities. METHODS: Sixty-three participants received 87 medium to large, cervically dentin bordered, Class II restorations of two fiber-reinforced resin composites, 42 Nulite F (N) and 45 Alert (A). The restorations were evaluated clinically, according to slightly modified USPHS criteria at baseline, after 6 months, and yearly during 6 years. RESULTS: At 2 years the cumulative failure frequencies for N and A were 4.8% and 2.2%, respectively, which increased at 6 years to 25.0% and 12.8%. Reasons for failure were secondary caries, material and cusp fracture. The majority of the failures occurred after 3 years. Secondary caries occurred between 4 and 6 years. The incorporation of fibers resulted in very rough surface characteristics. CONCLUSIONS: A rather high failure rate was observed for one of the fiber-reinforced resin composites, while the other fulfilled the ADA criteria. The occurrence of most failures after 3 years indicated the necessity of long-term evaluations of new materials.
OBJECTIVE: To evaluate the 6-year performance of two glass fiber-reinforced packable resin composites in Class II cavities. METHODS: Sixty-three participants received 87 medium to large, cervically dentin bordered, Class II restorations of two fiber-reinforced resin composites, 42 Nulite F (N) and 45 Alert (A). The restorations were evaluated clinically, according to slightly modified USPHS criteria at baseline, after 6 months, and yearly during 6 years. RESULTS: At 2 years the cumulative failure frequencies for N and A were 4.8% and 2.2%, respectively, which increased at 6 years to 25.0% and 12.8%. Reasons for failure were secondary caries, material and cusp fracture. The majority of the failures occurred after 3 years. Secondary caries occurred between 4 and 6 years. The incorporation of fibers resulted in very rough surface characteristics. CONCLUSIONS: A rather high failure rate was observed for one of the fiber-reinforced resin composites, while the other fulfilled the ADA criteria. The occurrence of most failures after 3 years indicated the necessity of long-term evaluations of new materials.
Authors: Bruno Castro Ferreira Barreto; Annelies Van Ende; Diogo Pedrollo Lise; Pedro Yoshito Noritomi; Siegfried Jaecques; Jos Vander Sloten; Jan De Munck; Bart Van Meerbeek Journal: Clin Oral Investig Date: 2015-09-16 Impact factor: 3.573
Authors: N J M Opdam; F H van de Sande; E Bronkhorst; M S Cenci; P Bottenberg; U Pallesen; P Gaengler; A Lindberg; M C D N J M Huysmans; J W van Dijken Journal: J Dent Res Date: 2014-07-21 Impact factor: 6.116