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Objective <p>This study aimed to evaluate the effects of an indirect vision training (IVT) program on dental students’ working postures and cavity preparation performance, using a modified CADEP (Compliance Assessment of Dental Ergonomic Posture) scoring system.</p> Materials and methods <p>In this single-group pre–post quasi-experimental study, The IVT group consisted of 35 third-year dental students, while the control group comprised 67 third-year students from the subsequent academic year who completed the same preclinical restorative dentistry curriculum without receiving IVT. They performed Class I cavity preparations on teeth #16 and #46 using phantom heads. Ergonomic posture was assessed using a modified CADEP scale before and after training. Cavity preparation scores were evaluated for tooth #16 and #46. Data were analyzed using Chi-square, Mann–Whitney U, and Wilcoxon signed-rank tests. Repeated measurements were additionally evaluated using generalized linear mixed models (GLMMs). Statistical significance was set at <i>p</i> &lt; 0.05.</p> Results <p>Following indirect vision training, significant improvements were observed in both ergonomic posture and cavity preparation performance. For Tooth 16, total CADEP scores increased from 47.86 to 62.29 (<i>p</i> &lt; 0.001), while cavity preparation performance scores improved from 64.43 to 72.43 (<i>p</i> &lt; 0.001). For Tooth 46, total CADEP scores increased from 42.29 to 53.86 (<i>p</i> = 0.006), and performance scores improved from 64.14 to 69.91 (<i>p</i> &lt; 0.001). Significant improvements were detected in CADEP-2, CADEP-3, CADEP-6, and CADEP-7 for Tooth 16, and in CADEP-6 and CADEP-7 for Tooth 46. No significant differences were observed according to academic year or gender for most parameters (<i>p</i> &gt; 0.05).</p> Conclusion <p>This study showed that a 16-week indirect vision training program was associated with improvements in ergonomic posture and Class I cavity preparation performance, particularly in lumbar support, stool use, feet positioning, and dental light positioning.</p>

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Effect of a four-month indirect vision training program on ergonomic posture and class I cavity preparation performance in dental students

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年7月2日

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  • Zeynep Ceren Çeli̇k,
  • Gül Dinç Ata,
  • Halil Sağlam

摘要

Objective

This study aimed to evaluate the effects of an indirect vision training (IVT) program on dental students’ working postures and cavity preparation performance, using a modified CADEP (Compliance Assessment of Dental Ergonomic Posture) scoring system.

Materials and methods

In this single-group pre–post quasi-experimental study, The IVT group consisted of 35 third-year dental students, while the control group comprised 67 third-year students from the subsequent academic year who completed the same preclinical restorative dentistry curriculum without receiving IVT. They performed Class I cavity preparations on teeth #16 and #46 using phantom heads. Ergonomic posture was assessed using a modified CADEP scale before and after training. Cavity preparation scores were evaluated for tooth #16 and #46. Data were analyzed using Chi-square, Mann–Whitney U, and Wilcoxon signed-rank tests. Repeated measurements were additionally evaluated using generalized linear mixed models (GLMMs). Statistical significance was set at p < 0.05.

Results

Following indirect vision training, significant improvements were observed in both ergonomic posture and cavity preparation performance. For Tooth 16, total CADEP scores increased from 47.86 to 62.29 (p < 0.001), while cavity preparation performance scores improved from 64.43 to 72.43 (p < 0.001). For Tooth 46, total CADEP scores increased from 42.29 to 53.86 (p = 0.006), and performance scores improved from 64.14 to 69.91 (p < 0.001). Significant improvements were detected in CADEP-2, CADEP-3, CADEP-6, and CADEP-7 for Tooth 16, and in CADEP-6 and CADEP-7 for Tooth 46. No significant differences were observed according to academic year or gender for most parameters (p > 0.05).

Conclusion

This study showed that a 16-week indirect vision training program was associated with improvements in ergonomic posture and Class I cavity preparation performance, particularly in lumbar support, stool use, feet positioning, and dental light positioning.