目的：研究Wy10快速牙齿美白术对各类着色牙的疗效及敏感度的影响。方法：将门诊中要求牙齿美白的20例患者的着色牙，按病因分为増龄性黄牙180颗，外源性染色牙120颗，轻、中度四环素牙60颗，轻、中度氟斑牙40颗。采用Wy10快速牙齿美白术对患牙进行美白治疗，用比色板观察术后即刻及1个月后牙面色泽的改变，探诊和冷诊检测术后即刻及1个月后牙面的敏感度。结果：Wy10快速牙齿美白术对増龄性黄牙和外源性染色牙即刻有效率100％，1个月后的有效率分别为97．2％和97．5％；对四环素牙和氟斑牙即刻有效率为96．6％和97．5％，1个月后有效率分别为93．3％和95％。术后绝大多数治疗牙无明显不适，仅极少数有即刻轻度不适，1个月后均恢复正常。结论：采用Wy10快速牙齿美白术治疗牙齿着色安全高效，其对増龄性黄牙和外源性染色牙的治疗效果较四环素牙和氟斑牙好。%Objective:To study the clinical efficacy and sensitivity of Wy10 fast teeth whitening technique to all kinds of discolored teeth in stomatology clinic .Methods :Twenty cases of outpatients were randomly selected ,whose discolored teath were divided according to their pathogenesis .There were 180 age-related discolorationteeth ,120 extrinsic staining teeth ,60 tetracycline stained teeth and 40 teeth of dental fluorosis which were treated by Wy10 fast teeth whitening technology .The changes of teeth color were examined by Vita shade guide while probing and cold air were used to detect the degree of dental sensitivity ,immeddiately after the operation and a month later .Results:The effective ratios was 100% immediataly after the operation and up to 97 .2% and 97 .5% respectively after a month on the age-related discolored teeth and extrinsic staining teeth .The effective ratios were 96 .6% and 97 .5% respectively immediately after the operation and up to 93 .3% and 95%respectively on tetracycline stained teeth and dental fluorosis teeth after a month .No significant teeth discomfort except individ-ual mild discomfort which return to nomality in a month were detected .Conclusions :The Wy10 fast teeth whitening technigue is a safe and effective treatment for discolored teeth ,and its therapeutic effect on the age-related discolored teeth and extrinsic stained teeth is better than that on the tetracycline stained teeth and dental fluorosis teeth .
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