背景:了解根管形态对于根管治疗的成功至关重要。因此,本研究旨在使用锥形束计算机断层扫描技术在巴基斯坦亚群中评估和分析上颌前磨牙的根管构型。
方法:这项横断面研究利用了来自两个不同中心的CBCT扫描:卡拉奇的AgaKhan大学和拉合尔的JinnahMRI和身体扫描。使用GALAXIS1.9版(SICATGmbHandCo.KG,波恩,德国),集成在Sirona牙科系统(D-64625Bensheim,德国)。扫描参数标准化为85kV,7mA,15秒的曝光时间和0.16毫米的体素大小。共收集707次CBCT扫描,包括2180个上颌前磨牙。根管配置的分类基于(Ahmed等人。IntEndodJ.2017;50(8):761-70)。使用SPSS版本26进行统计分析,采用卡方检验,显著性水平设定为p<0.05。
结果:根管形态的分布随年龄和性别的不同而显著变化。在上颌前磨牙中,50%表现出2MPMB1L1的典型构型(两个根,每个颊和舌根的单管),而26%的上颌右第二前磨牙显示1MPM1(一根根,一条运河)。总的来说,1MPM1占第二前磨牙总病例的27.4%。在第一前磨牙(p=0.338)或第二前磨牙(p=0.833)中,年龄与根管分布之间没有统计学上的显着关系。关于性别,在右上颌第一前磨牙的分布上观察到显著差异(p=0.022*),女性患病率较高。
结论:这项研究为巴基斯坦不同区域亚群上颌前磨牙根管的解剖变异提供了重要的见解。虽然特定的根管构型很普遍,结果表明,年龄与上颌前磨牙根管形态之间无统计学意义的相关性。然而,在右上颌第一前磨牙的分布中观察到明显的性别差异。
BACKGROUND: Understanding the root canal morphology is essential for the success of root canal treatment. Therefore, this study aimed to evaluate and analyze the root canal configuration of maxillary premolars using Cone Beam Computed Tomography in the Pakistani subpopulation.
METHODS: This cross-sectional study utilized CBCT scans from two distinct centres: Aga Khan University in Karachi and Jinnah MRI and Body Scans in Lahore. The CBCT images were visualized using GALAXIS version 1.9 (SICAT GmbH and Co. KG, Bonn, Germany), integrated within the Sirona Dental System (D-64625 Bensheim, Germany). The scanning parameters were standardized at 85 kV, 7 mA, with a 15-s exposure time and a voxel size of 0.16 mm. A total of 707 CBCT scans were collected, encompassing 2180 maxillary premolars. Root canal configurations were classified based on (Ahmed et al. Int Endod J. 2017;50(8):761-70). Statistical analyses were performed using SPSS version 26, employing the Chi-square test with a significance level set at p < 0.05.
RESULTS: The distribution of root canal morphologies varied significantly with age and gender. Among maxillary premolars, 50% exhibited the typical configuration of 2MPMB1 L1 (two roots, single canal in each buccal and lingual root), while 26% of maxillary right second premolars displayed 1MPM1 (one root, one canal). Overall, 1MPM1 accounted for 27.4% of the total cases in the second premolars. There was no statistically significant relationship between age and root canal distribution in either first premolars (p = 0.338) or second premolars (p = 0.833). Regarding gender, a significant difference was observed in the distribution of right maxillary 1st premolars (p = 0.022*), with a higher prevalence among females.
CONCLUSIONS: This study offers significant insights into the anatomical variations of root canals in maxillary premolars across diverse regional subpopulations in Pakistan. While specific root canal configurations were prevalent, the findings indicate no statistically significant correlation between age and root canal morphology in maxillary premolars. However, a notable gender disparity was observed in the distribution of the right maxillary first premolars.