Clinical Study on Optical Coherence Tomography Technique in Diagnosis and Resin-infiltration Efficacy Evaluation of Dental Fluorosis

doi:10.13701/j.cnki.kqyxyj.2025.06.007

Abstract

Abstract: Objective: To explore the feasibility of optical coherence tomography (OCT) in the diagnosis of dental fluorosis and evaluation of the resin infiltration efficacy through clinical research. Methods: Twenty patients with dental fluorosis who visited the Department of Stomatology of Xuzhou Central Hospital from July 2023 to June 2024 were selected as the experimental group, and twenty healthy individuals were selected as the control group. The upper central incisors in the control group underwent OCT scanning. All the incisors and premolars in both maxillary and mandibular arches of the patients in the experimental group were applied minimally invasive enamel whitening therapy comprising microabrasion, in-office bleaching, 17% ethylene diamine tetraacetic acid (EDTA) pretreatment, and resin infiltration technique. The aesthetic treatment effectiveness of dental fluorosis was comprehensively evaluated by analyzing the OCT image data of the enrolled population's teeth, measuring the area of white spots, evaluating the color shade changes, and tooth surface index of fluorosis (TSIF) scores before treatment, immediately after resin infiltration, and the 6-month follow-up. Results: In the control group, the enamel surfaces in the OCT images were smooth, the enamel rods were clear, and the gray values and the thicknesses of the high-brightness layers were significantly higher than those in the experimental group (P<0.05). After bleaching combined with resin infiltration treatment, the aesthetic efficacy of the patients with dental fluorosis showed significant improvements in the thicknesses of the high-brightness layers, gray values, white spot area, TSIF scores, and color shade changes (P<0.05). Conclusion: In-office bleaching combined with resin infiltration can effectively improve the aesthetic effect of dental fluorosis, and the short-term efficacy is stable. The OCT technique can be an alternative method for the diagnosis and efficacy evaluation of dental fluorosis.

Key words: dental fluorosis, optical coherence tomography technique, teeth bleaching, resin infiltration, aesthetic efficacy

DING Yu, TIAN Jingyu, YANG Yuanyuan, HE Jingyu, MENG Jian, MENG Qingfei. Clinical Study on Optical Coherence Tomography Technique in Diagnosis and Resin-infiltration Efficacy Evaluation of Dental Fluorosis[J]. Journal of Oral Science Research, 2025, 41(6): 490-495.

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