プレドクトラル学生による根管治療の質が歯内療法の治療成績および患者の QOL に及ぼす影響の評価

Evaluation of quality of root canal therapy performed by predoctoral students on endodontic outcome and quality of life of patients.

抄録

本研究では、プレドクター学生による根管治療(RCT)の技術的質(TQ)と、それが歯内療法の治療成績(EO)および患者の生活の質(QoL)に及ぼす影響を評価した。プレドクトラル学生によるRCTのTQを評価し、RCTの臨床的、X線的転帰および患者のQoLを明らかにするためにフォローアップを行った。度数分布、重回帰、独立標本t検定、一元配置検定を行った。164名の患者の合計226歯について臨床検査とX線検査を行った。満足のいくTQが130歯（57.5％）で観察され、155歯（68.6％）で臨床結果が成功し、206歯（91％）でX線写真の結果が成功し、150歯（66.4％）でEO全体が成功し、80％の患者が好ましいQoLを報告した。EOとQoLの間には有意な正の相関が認められ（p=0.002）、TQ-RCTとEO（p=0.07）、TQ-RCTとQoL（p=0.316）には有意な相関は認められなかった。EOの成功は患者のQoLにプラスの影響を与えた。

This study evaluated the technical quality (TQ) of root canal therapy (RCT) performed by predoctoral students and its impact on endodontic outcome (EO) and patients' quality of life (QoL). The TQ of RCT done by predoctoral students was evaluated and follow-up visits were conducted to determine the clinical, radiographic outcome of RCT and patients' QoL. Frequency distribution, multiple regression, independent-samples t test and one-way anova were performed. A total of 226 teeth of 164 patients were clinically and radiographically examined. A satisfactory TQ was observed in 130 (57.5%), successful clinical outcomes in 155 (68.6%), successful radiographical outcomes in 206 (91%) and overall successful EO in 150 teeth (66.4%) with 80% of patients reporting a favourable QoL. A significant positive correlation was noted between EO and QoL (p = 0.002) with no significant correlation in between TQ-RCT and EO (p = 0.07) and TQ-RCT and QoL (p = 0.316). Successful EO had a positive impact on patients' QoL.