Li Yujiao, Qian Fei, Wang Dan, Wang Yirong, Wang Wei, Tian Yu
State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Key Laboratory of Stomatology, Department of Prosthodontics, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi 710032, China.
Heliyon. 2023 Apr 15;9(4):e15531. doi: 10.1016/j.heliyon.2023.e15531. eCollection 2023 Apr.
The aim of this retrospective study was to evaluate the prevalence of taurodontism in a group of adult dental patients in Northwest China with the aid of cone-beam computed tomography (CBCT).
This study used Shifman and Chanannel's criteria to statistically analyze the prevalence of taurodontism in the premolars and molars of the Chinese population. CBCT images of 5488 teeth from 580 subjects of Chinese origin were evaluated. The measured data were statistically analyzed and the chi-square test was also used to compare the prevalence of taurodontism between male and female subjects and between the upper and lower jaws ( < 0.05).
Taurodontism was detected in 169 patients, with a prevalence of 29.14%, of which 27.24% were males and 30.65% were females. The chi-square test showed that there was no significant difference between males and females ( > 0.05). Taurodontism was found in 7.45% of all teeth examined. Taurodonts were significantly more common in the maxilla (9.06%) than in the mandible (5.15%) ( < 0.001), and the maxillary second molar (25.18%) was the most common tooth affected. According to morphology, hypotaurodonts were the most common (60.39%) among taurodontic teeth.
Taurodontism was relatively common in the Chinese population and was almost equally distributed between males and females. The maxillary second molar was the most common tooth of all taurodonts measured, and taurodonts were significantly more common in the maxilla than in the mandible. Hypotaurodontism was the most common form of taurodontism. Our study provides a reference for dental deformities in the Chinese population and the diagnosis and treatment of taurodontism.
本回顾性研究旨在借助锥形束计算机断层扫描（CBCT）评估中国西北地区一组成年牙科患者中牛牙症的患病率。
本研究采用希夫曼和查纳内尔的标准，对中国人群前磨牙和磨牙中牛牙症的患病率进行统计分析。评估了580名中国受试者的5488颗牙齿的CBCT图像。对测量数据进行统计分析，并使用卡方检验比较男性和女性受试者以及上下颌之间牛牙症的患病率（P<0.05）。
在169名患者中检测到牛牙症，患病率为29.14%，其中男性为27.24%，女性为30.65%。卡方检验显示男性和女性之间无显著差异（P>0.05）。在所有检查的牙齿中，牛牙症的发生率为7.45%。牛牙症在上颌（9.06%）比下颌（5.15%）更常见（P<0.001），上颌第二磨牙（25.18%）是受影响最常见的牙齿。根据形态学，低牛牙症在牛牙症牙齿中最为常见（60.39%）。
牛牙症在中国人群中相对常见，在男性和女性中分布几乎相等。上颌第二磨牙是所有测量的牛牙症中最常见的牙齿，牛牙症在上颌比下颌更常见。低牛牙症是牛牙症最常见的形式。我们的研究为中国人群的牙齿畸形以及牛牙症的诊断和治疗提供了参考。
