冷光美白技术与夜间活髓牙脱色技术协同治疗四环素牙的临床效果

目的 探讨冷光美白技术与夜间活髓牙脱色技术协同治疗四环素牙的效果。方法 选取哈尔滨市 口腔医院2022年1月-12月收治的96例四环素牙患者为研究对象，采取随机数字表法分为对照组和试验 组，各48例。对照组实施冷光美白技术治疗，试验组实施冷光美白技术联合夜间活髓牙脱色技术治 疗，比较两组治疗效果、美白效果及牙齿敏感度。结果 试验组治疗总有效率为95.83%，高于试验组 的75.00%（P ＜0.05）；试验组治疗后色泽正常占比高于对照组（P ＜0.05）；试验组治疗后牙齿敏感度为 12.50%，低于对照组的27.08%，但差异无统计学意义（P ＞0.05）。结论 冷光美白技术与夜间活髓牙脱色 技术协同治疗四环素牙的效果较好，能提升牙齿色阶，改善牙齿颜色，且治疗后患者牙齿敏感度低，值得 临床应用。

Clinical Effect of Cold Light Whitening Technology Combined with Night Guard Vital Bleaching Technology in the Treatment of Tetracycline Tooth

Objective To investigate the clinical efficacy of cold light whitening technology and night guard vital bleaching technology in the treatment of tetracycline tooth. Methods A total of 96 patients with tetracycline tooth admitted to Harbin Stomatological Hospital from January to December 2022 were selected as the research objects. They were divided into control group and experimental group by random number table method, with 48 patients in each group. The control group was treated with cold light whitening technology, and the experimental group was treated with cold light whitening technology combined with night guard vital bleaching technology. The therapeutic effect, whitening effect and tooth sensitivity of the two groups were compared. Results The total effective rate of treatment in the experimental group was 95.83%, which was higher than 75.00% in the experimental group (P <0.05). The proportion of normal color in experimental group was higher than that in control group (P <0.05). After treatment, the tooth sensitivity of the experimental group was 12.50%, which was lower than 27.08% of the control group, but the difference was not statistically significant (P >0.05). Conclusion The combination of cold light whitening technology and night guard vital bleaching technology is effective in the treatment of tetracycline tooth, which can improve the level and the color of tooth. After treatment, the sensitivity of patients'' tooth is low, which is worthy of clinical application.