Clinical survival of indirect, anterior 3-unit surface-retained fibre-reinforced composite fixed dental prosthesis: Up to 7.5-years follow-up

Abstract

OBJECTIVES This prospective clinical study evaluated the performance of indirect, anterior, surface-retained, fibre-reinforced-composite restorations (ISFRCR). METHODS Between June-2003 and January-2011, a total of 134 patients (83 females, 51 males, 16-68 years old) received 175 ISFRCRs (local ethical registration number: 14/9/4). All restorations were made indirectly on a plaster model using unidirectional E-glass fibres (everStick CB, StickTech) in combination with a laboratory resin composite (Dialogue, Schütz Dental) and cemented according to the instructions of 4 resin cements [(RelyX ARC, 3M-ESPE, n=61), Bifix DC, VOCO, n=45), Variolink II (Ivoclar Vivadent, n=32) and Multilink (Ivoclar Vivadent, n=37)]. After baseline recordings, patients were followed at 6 months and thereafter annually up to 7.5 years. The evaluation protocol involved technical (chipping, debonding or fracture of tooth/restoration) and biological failures (caries). RESULTS Mean observation period was 58 months. Altogether, 13 failures were observed [survival rate: 97.7%] (Kaplan-Meier). One catastrophic fracture [(cement: RelyX ARC), eight partial debonding (cement: Bifix DC (5), Multilink (1), RelyX ARC (1), Variolink II (1)] and four delaminations of veneering composite [(cement: Bifix DC (2), RelyX ARC (1), Multilink (1)] were observed. Except one replacement, all defective restorations were repaired or recemented. Annual failure rate of ISFRCRs was 1.73%. The survival rates with the four resin cements did not show significant differences (RelyX ARC: 98.3%; Bifix DC: 93.5%; Variolink 2: 100%; Multilink: 100%) (p=0.114). Secondary caries did not occur in any of the teeth. CONCLUSION The 3-unit anterior indirect surface-retained resin-bonded FRC FDPs showed similar clinical survival rate when cemented with the resin cements tested. Experienced failures in general were due to debonding of the restoration or delamination of the veneering composite. CLINICAL SIGNIFICANCE 3-unit surface retained resinbonded FRC FDPs could be considered minimal invasive and cost-effective alternatives to conventional tooth-or implant-borne FDPs. Failures were mainly repairable in the form of chipping or debonding depending on the resin cement type. Variolink 2: 100%; Multilink: 100%) (p=0.114). Secondary caries did not occur in any of the teeth. Conclusion:The 3-unit anterior indirect surface-retained resin-bonded FRC FDPs showed similar clinical survival rate when cemented with the resin cements tested. Experienced failures in general were due to debonding of the restoration or delamination of the veneering composite.Clinical Trial Registration Number: NCT02343796.

A systematic review of the survival and complication rates of resin‐bonded fixed dental prostheses after a mean observation period of at least 5 years

“…Two studies (Kumbuloglu & Ozcan ; Sailer et al. ) reported that none of the abutment teeth lost vitality during the observation period.…”

Five‐year success rate of resin‐bonded fixed partial dentures: A systematic review

“…FRC RBFPDs have a variable estimated 5‐year success rate ranging from 58.7% (Van Heumen 2009) to 94.9% (Kumbuloglu and Ozcan) . In both of those studies, the RBFPDs were replacing 1 anterior missing tooth utilizing 2 retainers.…”

“…12 FRC RBFPDs have a variable estimated 5-year success rate ranging from 58.7% (Van Heumen 2009) 11 to 94.9% (Kumbuloglu and Ozcan). 36 In both of those studies, the RBFPDs were replacing 1 anterior missing tooth utilizing 2 retainers. The significant differences in the success rate can be attributed to the technique sensitivity of the bonding procedure and the utilization of retentive features in the design of the prostheses.…”

Effect of clinical and laboratory contamination media on the adhesion of luting cement to direct and indirect resin composite materials

“…[38] On the other hand, survival rate of ISFRCR in previous studies with other fibers and resin cements and veneering composites ranged between 93% up to 1 year in 31 patients [39] and 93.5-100% up to 58 months in 135 patients. [40] In none of these studies, clinical protocols were mentioned prior to adhesion protocols. Thus, future clinical studies should report whether contamination was experienced prior to adhesive cementation and what kind of the cleansing protocols was employed for resin composite materials in case of a failure.…”