The Clinical Study of Detecting the Endodontic Vitality Clinical Reference Range of Anterior Teeth in Children Used By Laser Doppler Flowmetry

Aim: To measure the pulpal blood flow (PBF) of the upper incisors using the laser Doppler flowmetry (LDF) and to calculate the endodontic vitality clinical reference range using PBF as an indicator in the healthy children. To clarify the factors that might interfere the detection and interpretation of the results. Methods: Seven to twelve-year-old school-age children were recruited randomly. The basic characteristics of the subjects are described in terms of age and gender. The mean, standard deviation, and reference range of the subjects’ PBF values are described based on their age, sex, and tooth position. Multi-factor analysis of variance was implemented, mainly including age, gender, and tooth position. Results: 1) The clinical reference range of the anterior teeth PBF in children of different ages was preliminary defined that was approximately among the range of 7-14. 2). A statistically significant correlation between PBF and age in school-aged children (P 0.05) was detected. The PBF detection value of lateral incisors was higher than that of central incisors, and the difference was statistically significant (P < 0.05). Conclusion: The determination of the range of clinical reference of anterior teeth PBF in children by LDF could provide a good theoretical basis and reference basis for further promotion of its application.