新疆地区人群下颌前磨牙根管形态的影像学研究

doi:10.13701/j.cnki.kqyxyj.2025.09.004

口腔医学研究 ›› 2025, Vol. 41 ›› Issue (9): 755-760.DOI: 10.13701/j.cnki.kqyxyj.2025.09.004

新疆地区人群下颌前磨牙根管形态的影像学研究

玛丽亚木古丽·帕塔尔^1,2, 阿尔曼·阿卜力孜³, 于甜甜¹, 萨肯德克·居马太^2,4, 赵今^1,2*

1.新疆医科大学第一附属医院(附属口腔医院)牙体牙髓病科新疆乌鲁木齐 830054;
2.新疆维吾尔自治区口腔医学研究所新疆乌鲁木齐 830054;
3.新疆医科大学第七附属医院口腔科新疆乌鲁木齐 830000;
4.新疆医科大学第一附属医院(附属口腔医院)口腔放射科新疆乌鲁木齐 830054

收稿日期:2024-09-23 出版日期:2025-09-28 发布日期:2025-09-24
通讯作者: * 赵今,E-mail:merryljin@sina.com
作者简介:玛丽亚木古丽·帕塔尔(1983~ ),女,乌鲁木齐人,硕士,副主任医师,主要从事牙体牙髓疾病病因及防治工作。

Imaging Study on Root Canal Morphology of Mandibular Premolars in Xinjiang Region Population

Maliyamuguli·PATAER^1,2, Aerman·ABULIZI³, YU Tiantian¹, Sakendeke·JUMATAI^2,4, ZHAO Jin^1,2*

1. Department of Cariology and Endodontics, The First Affiliated Hospital of Xinjiang Medical University (The Affiliated Stomatology Hospital of Xinjiang Medical University), Urumqi 830054, China;
2. Stomatology Disease Institute of Xinjiang Uyghur Autonomous Region, Urumqi 830054, China;
3. Department of Stomatology,Seventh Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China;
4. Department of Oral and Maxillofacial Radiology, The First Affiliated Hospital of Xinjiang Medical University (Affiliated Stomatology Hospital), Urumqi 830054, China

Received:2024-09-23 Online:2025-09-28 Published:2025-09-24

摘要/Abstract

摘要： 目的: 采用锥形束计算机断层扫描(cone beam computed tomography,CBCT)研究新疆地区人群下颌前磨牙牙根数、根管数分布以及根管形态。方法: 对2021年1月~2024年8月在新疆医科大学附属口腔医院因治疗需要进行CBCT检查的患者的影像学资料进行评估并选择符合纳入标准的患者。根据Vertucci根管分类法对符合纳入标准的图像进行初步分析,然后根据年龄、性别和双侧牙位进行分组,分析其对根管形态的影响。结果: 本研究最终纳入2247例患者,其中女性1386例(61.68%),男性861例(38.32%)。在新疆地区人群的下颌第一前磨牙、下颌第二前磨牙单根占比分别为97.42%,99.67%,而双根发生率分别为2.34%,0.20%,C-型根发生率分别为0.22%、0.11%。下颌第一前磨牙中双牙根占比高于下颌第二前磨牙(χ²=81.881,P＜0.001),而左右侧双根发生率之间无统计学差异。下颌前磨牙的根管构型主要以Ⅰ型为主,在下颌第一前磨牙、下颌第二前磨牙中的发生率依次为90.48%,98.53%。多根管的下颌第一、第二前磨牙最常见的根管类型为Ⅴ型,发生率依次为5.41%,0.62%。在根管数目方面,下颌第一前磨牙中有9.52％为多根管,下颌第二前磨牙中有1.47%为多根管,下颌第一前磨牙多根管的发生率高于下颌第二前磨牙(χ²=280.700,P＜0.001)。下颌第一、第二前磨牙不同年龄段人群的根管构型分布比较,差异均无统计学意义。下颌第二前磨牙对称性高于下颌第一前磨牙(χ²=53.822,P＜0.001)。下颌第一、第二前磨牙多根管率性别组间比较发现,下颌第一前磨牙男女性之间差异有统计学意义(χ²=8.613,P<0.05),而下颌第二前磨牙男女性之间差异无统计学意义(χ²=0.336,P=0.562)。结论: 在新疆地区人群中,下颌前磨牙不同程度发生多根管,下颌第一前磨牙根管形态较下颌第二前磨牙更为复杂。

关键词: 锥形束计算机断层扫描, 下颌前磨牙, Vertucci根管分类, 根管形态

Abstract: Objective: To investigate the number of roots, root canal distribution, and root canal morphology of mandibular premolars in Xinjiang Region Population using cone-beam computed tomography (CBCT). Methods: CBCT images of patients who went to the Stomatological Hospital of Xinjiang Medical University from January 2021 to August 2024 for treatment purposes were evaluated. Patients meeting the inclusion criteria were selected. Based on Vertucci's root canal classification, the images were initially analyzed and then grouped by age, gender, and bilateral tooth position to assess their effects on root canal morphology. Results: A total of 2,247 patients [1,386 females (61.68%) and 861 males (38.32%)] were included. Among the mandibular first premolars and second premolars in this population, single-root prevalence was 97.42% and 99.67%, respectively, while the incidence of dual roots was 2.34% and 0.20%. C-shaped roots were observed in 0.22% and 0.11% of cases, respectively. The mandibular first premolar exhibited a higher prevalence of dual roots than the second premolar (χ²=81.881, P<0.001), with no significant differences in bilateral dual-root occurrences. The root canal configuration was predominantly Type Ⅰ, occurring in 90.48% of first premolars and 98.53% of second premolars. Multi-rooted canals were most commonly Type Ⅴ in both premolars, with prevalence rates of 5.41% (first premolar) and 0.62% (second premolar). The multi-rooted canal rate was significantly higher in first premolars than in second premolars (χ²=280.700, P<0.001). No statistically significant differences in root canal configurations were observed across age groups. The second premolar showed higher symmetry than the first premolar (χ²=53.822, P<0.001). Gender-based comparisons revealed significant differences in multi-rooted canal rates for first premolars (χ²=8.613, P<0.05) but not for second premolars (χ²=0.336, P=0.562). Conclusion: In Xinjiang region population, mandibular premolars exhibited varying degrees of multi-rooted canals, with the first premolar demonstrating more complex root canal morphology compared to the second premolar.

Key words: cone beam computed tomography, mandibular premolars, Vertucci root canal classification, root canal morphology

玛丽亚木古丽·帕塔尔, 阿尔曼·阿卜力孜, 于甜甜, 萨肯德克·居马太, 赵今. 新疆地区人群下颌前磨牙根管形态的影像学研究[J]. 口腔医学研究, 2025, 41(9): 755-760.

Maliyamuguli·PATAER, Aerman·ABULIZI, YU Tiantian, Sakendeke·JUMATAI, ZHAO Jin. Imaging Study on Root Canal Morphology of Mandibular Premolars in Xinjiang Region Population[J]. Journal of Oral Science Research, 2025, 41(9): 755-760.

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新疆地区人群下颌前磨牙根管形态的影像学研究

Imaging Study on Root Canal Morphology of Mandibular Premolars in Xinjiang Region Population

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