Pertek Hatipoğlu Fatma, Magat Güldane, Karobari Mohmed Isaqali, Madarati Ahmad A, Tulegenova Indira, Hatipoğlu Ömer, Taha Nessrin, Makahleh Nisrein, Fernández-Grisales Rafael, Bekjanova Olga, Rahimi Mehdi, Donnermeyer David, Madfa Ahmed A, Petridis Xenos, Intriago Martha Gallegos, Shah Tanvi, Allawi Safaa, Ivica Anja, Lim Wen Yi, Hamouda Abdelrahman, Jagtap Rohan, Martín-Biedma Benjamín, Lehmann Anna Paulina, Alfirjani Suha, Palma Paulo J, Buchanan Glynn Dale
Department of Endodontics, Recep Tayyip Erdogan University, Rize, Turkey.
Department of Oral Radiology, Faculty of Dentistry, Necmettin Erbakan University, Konya, Turkey.
Sci Rep. 2025 Jun 2;15(1):19290. doi: 10.1038/s41598-025-02669-6.
This study aimed to evaluate the root and root canal morphology of maxillary first premolars (M1Ps) globally using cone-beam computed tomography (CBCT), comparing results with Vertucci's and Ahmed et al.'s classification systems. CBCT images were obtained for various purposes such as orthodontic treatment planning, tooth impaction, implant surgery, and trauma cases. M1Ps were evaluated in three planes to determine root and root canal morphology, and root bifurcation levels were assessed using integrated software. Prevalence variations between countries and overall prevalence were analyzed using meta-analysis software. A total of 6,600 patients (13,200 bilateral M1Ps) were examined. According to Vertucci's classification, Type IV (59%), Type II (12%), Type I (9%), and Type III (8%) were the most common configurations. Based on Ahmed's classification,MP B P was the most prevalent configuration (53%), followed by MP (9%),MP (8%), and MP (7%). The prevalence of MP B P by gender revealed a pooled prevalence of 58% in males and 50% in females. No significant difference was found across age ranges (p > 0.05). Ahmed's classification system provided a more comprehensive analysis by successfully classifying all cases, whereas Vertucci's system failed to categorize 1.8-2.7% of the cases. Significant bilateral symmetry in root morphology was noted. There are regional and gender-specific differences in the root canal morphology of M1Ps. Ahmed et al.'s classification system was more comprehensive, effectively categorizing all observed morphologies compared to Vertucci's system, which had limitations and left some morphologies unclassified.
本研究旨在利用锥形束计算机断层扫描（CBCT）全面评估上颌第一前磨牙（M1P）的牙根及根管形态，并将结果与韦尔图奇（Vertucci）分类系统和艾哈迈德等人（Ahmed et al.）的分类系统进行比较。获取CBCT图像用于正畸治疗计划、阻生牙、种植手术及创伤病例等各种目的。在三个平面评估M1P以确定牙根及根管形态，并使用集成软件评估牙根分叉水平。使用荟萃分析软件分析各国之间的患病率差异及总体患病率。共检查了6600例患者（13200颗双侧M1P）。根据韦尔图奇分类，IV型（59%）、II型（12%）、I型（9%）和III型（8%）是最常见的形态。基于艾哈迈德分类，MP B P是最普遍的形态（53%），其次是MP（9%）、MP（8%）和MP（7%）。按性别划分的MP B P患病率显示，男性汇总患病率为58%，女性为50%。各年龄范围之间未发现显著差异（p＞0.05）。艾哈迈德分类系统通过成功分类所有病例提供了更全面的分析，而韦尔图奇系统未能对1.8 - 2.7%的病例进行分类。注意到牙根形态存在显著的双侧对称性。M1P的根管形态存在区域和性别差异。与存在局限性且留下一些形态未分类的韦尔图奇系统相比，艾哈迈德等人的分类系统更全面，能有效分类所有观察到的形态。
