Chib Adhishree S, Padmawar Neeta S, Waghmare Sonali, Tiwari Durgesh A, Mulani Shahinwaz, Bhatt Megna
Department of Pediatric Dentistry, Consultant Pedodontics, Muskaan Dentals Global, Gurugram, IND.
Department of Pediatric Dentistry, Rural Dental College, Pravara Institute of Medical Sciences, Loni, IND.
Cureus. 2024 Sep 4;16(9):e68623. doi: 10.7759/cureus.68623. eCollection 2024 Sep.
Achieving success in root canal (RC) therapy relies on three key components: comprehensive cleaning of the canal, efficient disinfection, and proper filling of the canal space. The present study aimed to compare the efficacy of four obturation techniques: single cone (SC), GuttaCore (GC), cold lateral condensation (LC), and C Point system for RC filling of permanent teeth.
76 extracted human mandibular first premolars were divided into four groups, with 19 teeth in each group (group A, obturation with SC technique; group B, obturation with GC; group C, obturation with LC; and group D, obturation with C Point system). The samples were marked at 4 mm and 8 mm from the root apex using a marker and calliper, sectioned horizontally, and analyzed under a stereomicroscope at 20x magnification. The mean percentage (%) of gutta-percha (GP)-filled area was compared using a two-way analysis of variance (ANOVA), followed by the Bonferroni post-hoc test.
The mean percentage of GP-filled area at a distance of 4 mm from the apex was highest in group B (0.86±0.04; 95% CI: 0.845-0.881), followed by group D (0.70±0.07; 95% CI: 0.664-0.736), group A (0.61±0.05; 95% CI: 0.595-0.642), and least in group C (0.58±0.09; 95% CI: 0.543-0.627), and the difference was statistically significant (p≤0.05). The post-hoc pairwise comparison of groups at 4 mm revealed that there were statistically significant differences between group D and groups B, C, and A (p ≤ 0.001). The mean percentage of the GP area at a distance of 8 mm from the apex was highest in group B (0.81±0.10; 95% CI: 0.761-0.861), followed by group D (0.75±0.07; 95% CI: 0.725-0.792), group A (0.69±0.07; 95% CI: 0.658-0.729), and lowest in group C (0.65±0.10; 95% CI: 0.607-0.709), and this difference was statistically significant (p≤0.05). Post-hoc pairwise comparison of groups at 8 mm revealed that there was a statistically significant difference between groups D and C (p=0.006), whereas no statistically significant differences were noted between groups D and B (p=0.473). Furthermore, no statistically significant differences were noted between groups C and A at 4 mm and 8 mm (p>0.05).
Obturation with the GC system provided the best results in terms of the percentage of GP-filled area at 4 mm. However, at 8 mm from the apical region, both the GC and C Point systems provided similar results.
根管治疗取得成功依赖于三个关键要素：根管的全面清理、有效的消毒以及根管空间的恰当充填。本研究旨在比较四种充填技术：单尖法（SC）、GuttaCore（GC）、冷侧方加压充填法（LC）和C Point系统用于恒牙根管充填的效果。
76颗拔除的人类下颌第一前磨牙被分为四组，每组19颗牙（A组，采用SC技术充填；B组，采用GC充填；C组，采用LC充填；D组，采用C Point系统充填）。使用标记笔和卡尺在根尖4mm和8mm处对样本进行标记，水平切片，并在20倍放大倍数的体视显微镜下进行分析。采用双向方差分析（ANOVA）比较牙胶（GP）充填面积的平均百分比（%），随后进行Bonferroni事后检验。
距根尖4mm处，GP充填面积的平均百分比在B组最高（0.86±0.04；95%置信区间：0.845 - 0.881），其次是D组（0.70±0.07；95%置信区间：0.664 - 0.736）、A组（0.61±0.05；95%置信区间：0.595 - 0.642），C组最低（0.58±0.09；95%置信区间：0.543 - 0.627），差异具有统计学意义（p≤0.05）。4mm处各组的事后两两比较显示，D组与B组、C组和A组之间存在统计学显著差异（p≤0.001）。距根尖8mm处，GP面积的平均百分比在B组最高（0.81±0.10；95%置信区间：0.761 - 0.861），其次是D组（0.75±0.07；95%置信区间：0.725 - 0.792）、A组（0.69±0.07；95%置信区间：0.658 - 0.729），C组最低（0.65±0.10；95%置信区间：0.607 - 0.709），且该差异具有统计学意义（p≤0.05）。8mm处各组的事后两两比较显示，D组与C组之间存在统计学显著差异（p = 0.006），而D组与B组之间未观察到统计学显著差异（p = 0.473）。此外，4mm和8mm处C组与A组之间未观察到统计学显著差异（p>0.05）。
就4mm处GP充填面积的百分比而言，采用GC系统充填效果最佳。然而，在距根尖区域8mm处，GC和C Point系统的效果相似。
