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Objectives <p>To evaluate the two-year clinical performance of Class V restorations in carious cervical lesions placed with bulk-fill resin composite or ion-releasing composite, combined with either fluoride-free or fluoride-releasing universal adhesives.</p> Materials and methods <p>In this double-blind, randomized clinical trial, 140 Class V restorations were placed using four restorative systems: bulk-fill composite with fluoride-free adhesive, bulk-fill composite with fluoride-releasing adhesive, ion-releasing composite with fluoride-free adhesive, and ion-releasing composite with fluoride-releasing adhesive. Restorations were placed under rubber-dam isolation using selective enamel etching. Clinical evaluations were performed at baseline, 6 months, one year, and two years using periodontal indices and FDI criteria. Data were analyzed using Kruskal–Wallis, Friedman, Mann–Whitney U, and Wilcoxon signed-rank tests (α = 0.05).</p> Results <p>Recall rates were 96.4% at 6 months, 89.3% at 1 year, and 83.5% at 2 years. Periodontal parameters showed no significant differences among groups. No significant differences were observed between restorative systems for any FDI functional, biological, or esthetic criteria at any evaluation point. All restorations remained clinically acceptable, with no loss of retention, fractures, or secondary caries throughout the two-year follow-up. Marginal adaptation scores remained stable and comparable among all groups.</p> Conclusions <p>All four restorative systems demonstrated comparable and favorable clinical performance over two years. The use of fluoride-releasing adhesives or ion-releasing composites did not confer additional clinical benefits under the conditions of this trial.</p> Clinical relevance <p>Both the tested bulk-fill resin composite and ion-releasing composite deliver predictable short-term performance in Class V restorations, without additional benefit from fluoride-releasing components.</p>

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A two-year randomized clinical trial of bulk-fill and ion-releasing composites with universal adhesives in class V carious lesions

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月11日

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  • Hoda Saleh Ismail,
  • Hanan Ahmed Nabil Soliman,
  • Ashraf Ibrahim Ali,
  • Ahmed Gamal Raghip,
  • Eman H. Albelasy

摘要

Objectives

To evaluate the two-year clinical performance of Class V restorations in carious cervical lesions placed with bulk-fill resin composite or ion-releasing composite, combined with either fluoride-free or fluoride-releasing universal adhesives.

Materials and methods

In this double-blind, randomized clinical trial, 140 Class V restorations were placed using four restorative systems: bulk-fill composite with fluoride-free adhesive, bulk-fill composite with fluoride-releasing adhesive, ion-releasing composite with fluoride-free adhesive, and ion-releasing composite with fluoride-releasing adhesive. Restorations were placed under rubber-dam isolation using selective enamel etching. Clinical evaluations were performed at baseline, 6 months, one year, and two years using periodontal indices and FDI criteria. Data were analyzed using Kruskal–Wallis, Friedman, Mann–Whitney U, and Wilcoxon signed-rank tests (α = 0.05).

Results

Recall rates were 96.4% at 6 months, 89.3% at 1 year, and 83.5% at 2 years. Periodontal parameters showed no significant differences among groups. No significant differences were observed between restorative systems for any FDI functional, biological, or esthetic criteria at any evaluation point. All restorations remained clinically acceptable, with no loss of retention, fractures, or secondary caries throughout the two-year follow-up. Marginal adaptation scores remained stable and comparable among all groups.

Conclusions

All four restorative systems demonstrated comparable and favorable clinical performance over two years. The use of fluoride-releasing adhesives or ion-releasing composites did not confer additional clinical benefits under the conditions of this trial.

Clinical relevance

Both the tested bulk-fill resin composite and ion-releasing composite deliver predictable short-term performance in Class V restorations, without additional benefit from fluoride-releasing components.