Objective. The purpose of this study was to radiographically evaluate technical quality of root canal fillings performed by dental undergraduates at Libyan International Medical University in Libya. Methods. Root canal cases were treated at university dental clinic from the fall of 2012 to the fall of 2013 by the fourth and fifth year dental students. Students used step-back preparation and cold lateral compaction in the treatment. Radiographs were reviewed over a two-year period from initial procedure to final restoration. Radiographs were evaluated for adequacy or inadequacy by length, density, and taper. Length inadequacy was classified as short or overextended. Overall quality was considered “adequate” based on all three variables. Chi-square tested differences between teeth groupings and adequacy classification. Significant p value results were adjusted by Bonferroni correction. Results. Adequate length of root canal fillings were observed in roughly half of all samples (48.6%). Density was adequate in 75.8% of the samples. Taper was observed as adequate in 68.8%. Higher quality was evident in anterior teeth (plus premolars) versus molars (65.6% versus 43.3%, resp.; p<0.04). Conclusion. Overall quality of endodontic treatment performed by undergraduate dental students was adequate in 53.9% of the cases. Significant opportunity exists to improve the quality of root canals provided by dental students.
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机译：客观的。这项研究的目的是评估放射学牙科本科生利比亚国际医药大学在利比亚进行根管充填技术质量。方法。根管案件由第四和第五个年头牙科学生在大学的牙科诊所治疗，从2012年秋季到2013年秋季。学生用在处理步骤中回制备与冷侧压缩。 X线检查在两年的时间内从最初的步骤，最后恢复审查。 X光片用于通过长度，密度，和锥形充足或不充分进行了评价。长度不足被列为短期或过度扩张。总体质量被认为是“足够”的基础上的所有三个变量。卡方测试齿分组和充足分类之间的差异。显著p值为结果由Bonferroni校正调节。结果。在大约一半的所有样品（48.6％）中观察到的根管填充物足够长度。密度为样本的75.8％，足够了。锥度观察到充足的68.8％。更高质量的前牙（加上前臼齿）与臼齿是明显的（65.6％对43.3％，RESP; P <0.04）。结论。通过本科牙科学生进行牙髓治疗的总体质量在的情况下，53.9％足够了。显著机会来改善牙科学生提供根管的质量。
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