Endodontic characteristics of mandibular premolar with dens evaginatus: a retrospective study.

Restorative Dentistry & Endodontics Pub Date : 2024-07-11 eCollection Date: 2024-08-01 DOI:10.5395/rde.2024.49.e28
Minjin Kim, Sujin Jeon, Min-Seock Seo
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Abstract

Objectives: This study aimed to investigate the endodontic characteristics of mandibular premolars with dens evaginatus (DE) that require endodontic treatment.

Materials and methods: Patients who underwent endodontic treatment were enrolled. The inclusion criteria were patients who underwent root canal treatment in the lower permanent teeth with DE and were followed up for at least 1 year. Preoperative clinical and radiographic variables were obtained. The frequency distribution of the preoperative variables was compared using the χ2 or Fisher's exact tests. The significance of the change in periapical health index (PAI) and root development stages before and after treatment was examined using the Wilcoxon signed-rank test.

Results: A total of 150 teeth of 134 patients with an average age of 15.3 years were included. The percentage distribution comparison of the preoperative variables and obturation techniques revealed significant differences in pulpal and periapical diagnosis, and percussion, and especially regarding age, root development stage, and PAI. Age was the only statistically significant preoperative variable associated with root growth (p < 0.05).

Conclusions: Approximately, 60% of DEs requiring endodontic treatment had immature roots. Age being the most significant predisposing factor, early treatment provides the greatest opportunity for full root development.

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下颌前磨牙牙髓病的特征:一项回顾性研究。
研究目的本研究旨在调查需要进行牙髓治疗的下颌前磨牙牙洞(DE)的牙髓特点:研究对象为接受牙髓治疗的患者。纳入标准为下恒牙牙根管治疗的 DE 患者,并随访至少 1 年。获得术前临床和放射学变量。使用χ2或费雪精确检验比较术前变量的频率分布。治疗前后根尖周健康指数(PAI)和牙根发育阶段变化的显著性采用 Wilcoxon 符号秩检验:共纳入 134 名患者的 150 颗牙齿,平均年龄为 15.3 岁。术前变量和封髓技术的百分比分布比较显示,在牙髓和根尖周诊断以及叩诊方面存在显著差异,尤其是在年龄、牙根发育阶段和 PAI 方面。年龄是唯一一个与牙根生长相关的具有统计学意义的术前变量(P < 0.05):结论:在需要进行牙髓治疗的 DE 中,约有 60% 的牙根尚未发育成熟。年龄是最重要的诱发因素,早期治疗为牙根的充分发育提供了最大的机会。
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来源期刊
CiteScore
0.20
自引率
0.00%
发文量
35
审稿时长
12 weeks
期刊最新文献
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