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Background <p>Dental practices generate significant environmental impacts, necessitating environmentally sustainable dentistry (ESD) for equitable, ethical, and resource-efficient care. However, a knowledge gap exists among dental practitioners regarding sustainable practices.</p> Objectives <p>This study assessed the effectiveness of an educational program on the knowledge and practice (KP) of undergraduate dental students at Pharos University in Alexandria (PUA), Egypt, regarding ESD.</p> Methods <p>The study was conducted from April to November 2024 and recruited 175 final pre-clinical (3rd) and final clinical (5th) year students. Participants' KP was evaluated before, immediately after, and six months post-program using a structured questionnaire. Statistical analysis employed t-tests, one-way ANOVA, and univariate regression models.</p> Results <p>Participants (58.28% female, mean age 20.88&#xa0;years) initially demonstrated low awareness of sustainability, primarily relying on social media for information (37.14%). The program improved knowledge, increasing the mean percentage from (60.38% ± 17.74%) to (92.60% ± 7.42%) immediately post-program and (76.41% ± 21.66%) after six months (<i>p</i> &lt; 0.001). Self-reported practices also improved, rising from (52.84% ± 10.79%) to (64.14% ± 11.73%) then (61.90% ± 13.47%) (<i>p</i> &lt; 0.001). Participants with good KP increased from (12.57%, 1.14%) pre-program to (93.14%, 15.42%) immediately post-program, then (51.42%, 18.28%) after six months (<i>p</i> &lt; 0.001). Moderate positive correlations were found between knowledge and practice post-intervention (<i>p</i> &lt; 0.05). Regression indicated that prior awareness of sustainability strongly predicted better KP of ESD at baseline, also final clinical educational level predicted good knowledge and using social media/websites predicted good practice.</p> Conclusions <p>Baseline KP regarding ESD was low. The educational program significantly enhanced participants' KP, demonstrating the potential of the multi-component targeted educational intervention in enhancing ESD. Incorporating sustainability into undergraduate curricula is recommended to improve future dental professionals' competencies.</p> Trial registration <p>The clinical trial registration number is PACTR202406623852822 (Date: 12 June 2024), “retrospectively registered”.</p>

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Effectiveness of an educational program on improving the knowledge and practice of environmental sustainability in dentistry among undergraduate students at Faculty of Dentistry in Egypt: an interventional study

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  • 发表日期：

    2026年1月5日

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  • Esraa Mahmoud Bishr,
  • Mohamed Fakhry Hussein,
  • Gaber Abuzaid Ismail,
  • Ebtisam Mohamed Fetohy,
  • Aleya Hanafy El-Zoka

摘要

Background

Dental practices generate significant environmental impacts, necessitating environmentally sustainable dentistry (ESD) for equitable, ethical, and resource-efficient care. However, a knowledge gap exists among dental practitioners regarding sustainable practices.

Objectives

This study assessed the effectiveness of an educational program on the knowledge and practice (KP) of undergraduate dental students at Pharos University in Alexandria (PUA), Egypt, regarding ESD.

Methods

The study was conducted from April to November 2024 and recruited 175 final pre-clinical (3rd) and final clinical (5th) year students. Participants' KP was evaluated before, immediately after, and six months post-program using a structured questionnaire. Statistical analysis employed t-tests, one-way ANOVA, and univariate regression models.

Results

Participants (58.28% female, mean age 20.88 years) initially demonstrated low awareness of sustainability, primarily relying on social media for information (37.14%). The program improved knowledge, increasing the mean percentage from (60.38% ± 17.74%) to (92.60% ± 7.42%) immediately post-program and (76.41% ± 21.66%) after six months (p < 0.001). Self-reported practices also improved, rising from (52.84% ± 10.79%) to (64.14% ± 11.73%) then (61.90% ± 13.47%) (p < 0.001). Participants with good KP increased from (12.57%, 1.14%) pre-program to (93.14%, 15.42%) immediately post-program, then (51.42%, 18.28%) after six months (p < 0.001). Moderate positive correlations were found between knowledge and practice post-intervention (p < 0.05). Regression indicated that prior awareness of sustainability strongly predicted better KP of ESD at baseline, also final clinical educational level predicted good knowledge and using social media/websites predicted good practice.

Conclusions

Baseline KP regarding ESD was low. The educational program significantly enhanced participants' KP, demonstrating the potential of the multi-component targeted educational intervention in enhancing ESD. Incorporating sustainability into undergraduate curricula is recommended to improve future dental professionals' competencies.

Trial registration

The clinical trial registration number is PACTR202406623852822 (Date: 12 June 2024), “retrospectively registered”.