PDF(Pubmed)
Abstract：
UNASSIGNED: One key factor in determining endodontic treatment outcome is the clinicians\' comprehension of tooth anatomy, as missed canals may harbor bacteria ultimately leading to apical periodontitis. The study aimed to investigate the prevalence of middle mesial canal (MMC) in Mandibular first molars (MFMs) of Saudi subpopulation.
UNASSIGNED: The cross-sectional retrospective study was conducted at Qassim University Dental College from June to August 2023. Overall, 302 CBCT images with 604 bilateral lower first molars were examined by two calibrated assessors. The existence of MMC was noted. The data were coded, and analysis was done in SPPS-24. The reliability of inter-evaluator and intra-evaluator agreement for detecting MMC were estimated using Cohen\'s kappa.
UNASSIGNED: The patients\' average age was 30.95±11.61years. The sample\'s female to male ratio was 1:1.75. The overall frequency of MMC was 14.2%. The differences in the frequency of MMC on the basis of gender, quadrants and age groups were found to be insignificant. Inter-evaluator and intra-evaluator reliability was noted to be 0.78 and 0.74, depicting acceptable reliability.
UNASSIGNED: The MMC is an uncommon occurrence with rare bilateral presentation in MFMs of Saudi population. Endodontists performing endodontic treatment in such subjects should mindfully investigate inter mesiobuccal- mesiolingual canals area for locating, negotiating, and managing any present MMC\'s.
UNASSIGNED: The cross-sectional retrospective study was conducted at Qassim University Dental College from June to August 2023. Overall, 302 CBCT images with 604 bilateral lower first molars were examined by two calibrated assessors. The existence of MMC was noted. The data were coded, and analysis was done in SPPS-24. The reliability of inter-evaluator and intra-evaluator agreement for detecting MMC were estimated using Cohen\'s kappa.
UNASSIGNED: The patients\' average age was 30.95±11.61years. The sample\'s female to male ratio was 1:1.75. The overall frequency of MMC was 14.2%. The differences in the frequency of MMC on the basis of gender, quadrants and age groups were found to be insignificant. Inter-evaluator and intra-evaluator reliability was noted to be 0.78 and 0.74, depicting acceptable reliability.
UNASSIGNED: The MMC is an uncommon occurrence with rare bilateral presentation in MFMs of Saudi population. Endodontists performing endodontic treatment in such subjects should mindfully investigate inter mesiobuccal- mesiolingual canals area for locating, negotiating, and managing any present MMC\'s.
摘要：
■确定牙髓治疗结果的一个关键因素是临床医生对牙齿解剖学的理解，因为错过的管道可能含有细菌，最终导致根尖周炎。该研究旨在调查沙特亚群下颌第一磨牙（MFMs）中中膜管（MMC）的患病率。
■横断面回顾性研究于2023年6月至8月在Qassim大学牙科学院进行。总的来说,由两名校准的评估员检查了302张CBCT图像和604张双侧下第一磨牙。注意到MMC的存在。数据被编码了，并在SPPS-24中进行分析。使用Cohen的kappa估计了评估者之间和评估者内部协议检测MMC的可靠性。
■患者的平均年龄为30.95±11.61岁。样本的男女比例为1:1.75。MMC的总体频率为14.2%。基于性别的MMC频率差异，象限和年龄组被发现是微不足道的。评估者间和评估者内的可靠性被指出为0.78和0.74,描述了可接受的可靠性。
■MMC在沙特人口的MFM中是罕见的双侧表现。在此类受试者中进行牙髓治疗的牙髓医生应仔细研究中甲-中舌管之间的定位区域，谈判,并管理任何现有的MMC。
■横断面回顾性研究于2023年6月至8月在Qassim大学牙科学院进行。总的来说,由两名校准的评估员检查了302张CBCT图像和604张双侧下第一磨牙。注意到MMC的存在。数据被编码了，并在SPPS-24中进行分析。使用Cohen的kappa估计了评估者之间和评估者内部协议检测MMC的可靠性。
■患者的平均年龄为30.95±11.61岁。样本的男女比例为1:1.75。MMC的总体频率为14.2%。基于性别的MMC频率差异，象限和年龄组被发现是微不足道的。评估者间和评估者内的可靠性被指出为0.78和0.74,描述了可接受的可靠性。
■MMC在沙特人口的MFM中是罕见的双侧表现。在此类受试者中进行牙髓治疗的牙髓医生应仔细研究中甲-中舌管之间的定位区域，谈判,并管理任何现有的MMC。
