冷光美白治疗增龄性变色牙和氟斑牙的效果比较

Comparison of efficacy of cold light whitening on aging discolored teeth versus dental fluorosis

目的比较冷光美白对增龄性变色牙和氟斑牙的临床疗效。方法抽取2017年6月至2020年9月在郑州大学第一附属医院进行冷光美白治疗的118例着色牙患者为研究对象,根据着色牙类型将其分为三组:增龄性变色牙组(51例),轻中度氟斑牙组(46例),重度氟斑牙组(21例)。三组患者均行冷光美白治疗,应用16色vita比色板于治疗前及治疗后即刻进行比色并计算患者色阶提高值;治疗后即刻采用视觉模拟评分法(VAS)进行敏感度评价,记录并比较患者VAS评分及敏感程度。结果冷光美白治疗后,增龄性变色牙组牙色提高(7.22±2.59)个色阶,轻中度氟斑牙组牙色提高(8.33±2.82)个色阶,重度氟斑牙组牙色提高(4.81±3.25)个色阶,三组患者牙色色阶提高值比较差异有统计学意义(P<0.05)。轻中度氟斑牙组及增龄性变色牙组治疗效果优于重度氟斑牙组,差异有统计学意义(P<0.05)。三组VAS评分及敏感度比较差异未见统计学意义(P>0.05)。结论冷光美白对增龄性变色牙、轻中度氟斑牙、重度氟斑牙都能取得不同程度的改善,且对增龄性变色牙和轻中度氟斑牙的效果优于重度氟斑牙;患者治疗后敏感度较低。

Objective To compare the clinical efficacy of cold light whitening in the treatment of aging discolored teeth and dental fluorosis.Methods A total of 118 patients with stained teeth treated in the First Affiliated Hospital of Zhengzhou University from June 2017 to September 2020 were selected as the research objects.According to the types of stained teeth,they were divided into three groups:aging discolored teeth group(51 cases),mild to moderate dental fluorosis group(46 cases),and severe dental fluorosis group(21 cases).All patients in the three groups were treated by cold light whitening.The 16 color Vita color plate was used to compare the color before and immediately after treatment.And the improvement value of patients’color scale was calculated.Visual analogue scale(VAS)was used to evaluate the sensitivity immediately after treatment.The VAS score and sensitivity were recorded and compared among groups.Results After cold light whitening treatment,the color of teeth in aging discolored teeth group increased by 7.22±2.59,which increased by 8.33±2.82 in mild to moderate dental fluorosis group,and 4.81±3.25 in severe dental fluorosis group.There was a significant difference in the improvement of tooth color scale among the three groups(P<0.05).The therapeutic effects of mild to moderate dental fluorosis group and aging discolored teeth group were significantly better than that of severe dental fluorosis group(P<0.05),but there was no significant difference in VAS score or sensitivity among the three groups(P>0.05).Conclusions Cold light whitening can improve aging discolored teeth,mild to moderate fluorosis teeth,and severe fluorosis teeth in varying degrees.Among them,the effects on aging discolored teeth and mild to moderate fluorosis teeth are better than those of severe fluorosis teeth.Most of the patients have less postoperative sensitivity.