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Background <p>Resin-bonded fixed dental prostheses, particularly zirconia-based single-retainer cantilever designs, offer a minimally invasive option for the replacement of anterior and, more recently, posterior teeth. This study aimed to develop a cost-effective reusable simulator and evaluate a one-day, simulation-based continuing education program grounded in current evidence for anterior cantilever (AC) and posterior cantilever (PC) zirconia resin-bonded fixed dental prostheses (RBFDPs).</p> Methods <p>Twenty-six volunteer general dental practitioners attended two sessions that blended lectures with two hands-on exercises using custom 3D printed modified typodonts. Self-perceived knowledge, confidence, and satisfaction were captured before, immediately after, and four months postcourse with questionnaires based on the Likert scale. Descriptive statistics (means and standard deviations) were calculated, and repeated items were analysed using non-parametric Kruskal–Wallis tests (R software, version 4.5.1).</p> Results <p>The baseline responses indicated modest experience with AC-RBFDPs (mean 3.54 ± 1.84) and PC-RBFDPs (2.27 ± 1.76) but high demand for theoretical training. Immediate satisfaction reached a very high level (overall 5.00 ± 0.00), and all individual items evaluating the education program exceeded 4.5. At four months, satisfaction remained high (4.63 ± 0.50), and confidence in zirconia bonding improved significantly (3.04 ± 1.04 to 4.00 ± 0.89; <i>p</i> &lt; 0.05), although reported implementations of AC-RBFDPs (3.06 ± 1.18) and PC-RBFDPs (3.00 ± 1.26) in clinical practice remained limited.</p> Conclusions <p>A single-day, simulation-based course using an affordable, recyclable simulator markedly enhanced perceived competence and maintained high satisfaction at four months, while it translated only partially into practice change among general dentists. Given the small sample size and the exclusive use of self-reported outcomes, these findings should be generalised with caution. Future work should rely on larger, longitudinal multimodal strategies and include objective performance and patient-centred outcomes.</p> Clinical trial number <p>Not applicable.</p> Trial registration <p>Not applicable.</p>

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Training in anterior and posterior zirconia cantilevered resin-bonded fixed dental prostheses: design and educational outcomes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年1月26日

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  • Sophie Gosselin,
  • Samuel Morice,
  • Stephane Le-Goff,
  • Elisa Caussin,
  • Sarah Abdel-Gawad,
  • Philippe Boitelle,
  • Elisabeth Dursun,
  • Maria-Antonietta D’Agostino,
  • Helene Gouze,
  • Jean-Pierre Attal,
  • Philippe Francois

摘要

Background

Resin-bonded fixed dental prostheses, particularly zirconia-based single-retainer cantilever designs, offer a minimally invasive option for the replacement of anterior and, more recently, posterior teeth. This study aimed to develop a cost-effective reusable simulator and evaluate a one-day, simulation-based continuing education program grounded in current evidence for anterior cantilever (AC) and posterior cantilever (PC) zirconia resin-bonded fixed dental prostheses (RBFDPs).

Methods

Twenty-six volunteer general dental practitioners attended two sessions that blended lectures with two hands-on exercises using custom 3D printed modified typodonts. Self-perceived knowledge, confidence, and satisfaction were captured before, immediately after, and four months postcourse with questionnaires based on the Likert scale. Descriptive statistics (means and standard deviations) were calculated, and repeated items were analysed using non-parametric Kruskal–Wallis tests (R software, version 4.5.1).

Results

The baseline responses indicated modest experience with AC-RBFDPs (mean 3.54 ± 1.84) and PC-RBFDPs (2.27 ± 1.76) but high demand for theoretical training. Immediate satisfaction reached a very high level (overall 5.00 ± 0.00), and all individual items evaluating the education program exceeded 4.5. At four months, satisfaction remained high (4.63 ± 0.50), and confidence in zirconia bonding improved significantly (3.04 ± 1.04 to 4.00 ± 0.89; p < 0.05), although reported implementations of AC-RBFDPs (3.06 ± 1.18) and PC-RBFDPs (3.00 ± 1.26) in clinical practice remained limited.

Conclusions

A single-day, simulation-based course using an affordable, recyclable simulator markedly enhanced perceived competence and maintained high satisfaction at four months, while it translated only partially into practice change among general dentists. Given the small sample size and the exclusive use of self-reported outcomes, these findings should be generalised with caution. Future work should rely on larger, longitudinal multimodal strategies and include objective performance and patient-centred outcomes.

Clinical trial number

Not applicable.

Trial registration

Not applicable.