Clinical Performance of Two Fluoride-Releasing Resin Materials in Class-I Restorations

Objectives: To evaluate clinical performance of a fluoride-releasing flowable resin composite material, Beautifil Flow Plus F00 (BF00), in restorations of occlusal lesions after 18 months and compare the results to a fluoride-releasing nano-hybrid resin composite, Beautifil II (BEII). Application times for two restorative materials were also compared.
Methods: Forty-six patients (aged between 20 and 40 years) with one or two pairs of class I carious lesions were enrolled in the study. One lesion of each pair was restored with BF00 or BEII after application of dentin adhesive material (FL-Bond II) and a flowable composite liner (Beautifil Flow Plus F03). Restorations (56 pairs) were finished with diamond burs and polished with composite polishing kits. Application time for each restoration was recorded at baseline. The restorations were evaluated by using modified United States Public Health Service criteria at baseline (BL) and after 18 months. Digital color photographs of restorations were taken at each visit. Evaluation parameters were: color match, marginal adaptation, marginal discoloration, retention, secondary caries formation, anatomic form, surface texture and postoperative sensitivity. Evaluations were recoded as clinically ideal situation (Alpha), clinically acceptable situation (Bravo) and clinically unacceptable situation (Charlie). Data were analyzed with Exact Fisher and McNemar tests (p<0.05).
Results: None of the restorations showed retention loss, postoperative sensitivity, secondary caries, or color change. For marginal adaptation, two BF00 and four BEII were rated Bravo. There were no statistically significant differences between BL and 18-month results of each material (p>0.05). Also, no statistically significant difference in overall clinical performance was found between two materials (p>0.05). Application time for BF00 restorations was significantly less (18.12min) than application time for BEII restorations (25.92min) (p<0.05).
Conclusions: Both restorative materials (BF00 and BEII) demonstrate very good clinical performance for Class I restorations after 18 months. Application time of the flowable composite material is shorter.