应用激光多普勒血流仪检测中国儿童上颌恒切牙牙髓活力的临床参考值及牙髓血流的符合率：一项临床研究。
Laser doppler flowmetry to detect pulp vitality, clinical reference range and coincidence rate for pulpal blood flow in permanent maxillary incisors in Chinese children: a clinical study.
机构信息
Department of Orthodontics, College of Stomatology, Xi'an Jiaotong University, Xi'an, China.
Department of Orthodontics, Affiliated Hospital of Qingdao University, School of Stomatology, Qingdao University, Qingdao, China.
出版信息
BMC Oral Health. 2023 May 12;23(1):283. doi: 10.1186/s12903-023-02747-z.
BACKGROUND
A laser doppler flowmetry (LDF) test can reflect the pulp vitality caused by the change in pulp blood flow (PBF). This study aimed to investigate the PBF of the permanent maxillary incisors using LDF and to calculate the clinical reference range and coincidence rate for pulp vitality using PBF as an indicator.
METHODS
School-age children (7-12 years) were recruited randomly. A total of 455 children (216 female and 239 male) were included in this study. An additional 395 children (7-12 years) who attended the department due to anterior tooth trauma from October 2015 to February 2018 were included to assess the clinical occurrence rate. The PBF was measured using LDF equipment and an LDF probe.
RESULTS
The clinical reference range of PBF values for the permanent maxillary incisors (teeth 11, 12, 21, and 22) in children were from 7 to 14 perfusion units (PU), 11 (6.016; 11.900 PU), 12 (6.677; 14.129 PU), 21 (6.043;11.899 PU), and 22 (6.668; 14.174 PU). There was a statistically significant correlation between PBF and children's age (p < 0.000) without any significant gender discrimination (p = 0.395). For all incisors, for any age group, the PBF detection value of the lateral incisors was significantly higher than that of the central incisors (p < 0.05). The clinical coincidence rate of detecting PBF in the traumatic teeth was 90.42% and the sensitivity and specificity were 36.99% and 99.88%, respectively.
CONCLUSIONS
The determination of the PBF clinical reference range and clinical coincidence rate for the permanent maxillary incisors in children using LDF provided a promising theoretical basis for clinical applications.
背景
激光多普勒流量测定（LDF）可以反映牙髓血流变化引起的牙髓活力。本研究旨在使用 LDF 测量恒切牙的牙髓血流（PBF），并计算以 PBF 为指标的牙髓活力的临床参考范围和符合率。
方法
随机招募学龄儿童（7-12 岁）。本研究共纳入 455 名儿童（女 216 名，男 239 名）。另外，还纳入了 2015 年 10 月至 2018 年 2 月因前牙外伤就诊的 395 名 7-12 岁儿童，以评估临床发生率。使用 LDF 设备和 LDF 探头测量 PBF。
结果
儿童恒切牙（11、12、21、22 号牙）的 PBF 值临床参考范围为 7-14 灌注单位（PU），11 号牙为 6.016；11.900 PU），12 号牙为 6.677；14.129 PU），21 号牙为 6.043；11.899 PU），22 号牙为 6.668；14.174 PU）。PBF 与儿童年龄呈显著正相关（p<0.000），但无明显性别差异（p=0.395）。对于所有切牙，在任何年龄组，侧切牙的 PBF 检测值均显著高于中切牙（p<0.05）。外伤性牙齿 PBF 检测的临床符合率为 90.42%，敏感性和特异性分别为 36.99%和 99.88%。
结论
使用 LDF 测定儿童恒切牙的 PBF 临床参考范围和临床符合率为临床应用提供了有前途的理论依据。
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