髓腔内漂白术对死髓变色牙漂白效果的临床疗效评估  

Clinical evaluation of bleaching effect of walking bleaching on discolored non-vital teeth

作　　者：王疆 周炜 王迎捷 张孝霞 刘艳丽 WANG Jiang;ZHU Wei;WANG Yingie;ZHANG Xiaoxia;LU Yanli(State Key Labora-tory of Military Stomatology,National Clinical Research Center for Oral Diseases,Shaanxi International Joint Re-search Center for Oral Diseases,Department of General Dentistry&Emergency,Xi'an 710032;Department of Prosthodontics,The Hospital of Stomatology,The Fourth Military Medical University,China;Xian International University,The Hospital of Stomatology,The Fourth Military Medical University,China)

机构地区：[1]军事口腔医学国家重点实验室,口腔疾病国家临床医学研究中心,陕西省口腔疾病国际联合研究中心,第四军医大学口腔医院急诊与综合临床科,西安710032 [2]军事口腔医学国家重点实验室,口腔疾病国家临床医学研究中心,陕西省口腔疾病国际联合研究中心,第四军医大学口腔医院口腔修复科,西安710032 [3]西安外事学院医学院口腔医学技术系

出　　处：《实用口腔医学杂志》2020年第4期662-665,共4页Journal of Practical Stomatology

摘　　要：目的:用视觉比色和分光光度比色仪比色方法,评估髓腔内漂白技术对因龋坏及牙外伤造成牙齿变色患牙的临床漂白效果。方法:92个患者共115颗患牙,按牙齿变色原因分为龋坏组(n=40)及牙外伤组(n=75),行髓腔内漂白术。Vita比色板及Crystaleye分光光度比色仪分别评估术前术后牙齿色泽改变情况,并计算患牙术前术后的色差值(ΔE)。结果:使用视觉比色和分光光度比色仪比色,髓腔内漂白有效率分别达到:龋坏组97.5%和97.5%(P>0.05),外伤组94.7%和96%(P>0.05)。成功率分别为,龋坏组:90%和92.5%(P>0.05),外伤组88%和88%(P>0.05)。ΔE值分别为龋坏组:9.67±3.22,外伤组:16.64±4.17。结论:髓腔内漂白术是治疗龋坏及外伤导致的死髓变色患牙的有效方法。对于陈旧性牙外伤导致的牙齿变色,单纯的髓腔内漂白效果不理想。Objective: To evaluate the bleaching effect of walking bleaching on discolored non-vital teeth caused by caries and trauma using visual colorimetry and Crystaleye spectrophotometer. Methods: 115 teeth in 92 patients were divided into caries group(n=40) and trauma group(n=75). Visual determination and Olympus Crystaleye spectrophotometer were used to evaluate the tooth discoloration before and after walking bleaching. The chromatic aberration(ΔE) was also calculated. Results: Effective rates of walking bleaching analyzed by visual colorimetry and Crystaleye spectrophotometer in caries group were 97.5% and 97.5%(P>0.05),in trauma group were 94.7% and 96%(P>0.05). Success rates in caries group were 90% and 92.5%(P>0.05),in trauma group were 88% and 88%(P>0.05), respectively. ΔE values of the 2 groups were 9.67±3.22 and 16.64±4.17 respectively. Conclusion: Walking bleaching is an effective treatment for the discolored teeth caused by caries and dental trauma. But for the old tooth discoloration caused by tooth trauma, the effect of walking bleaching alone is not ideal.

关 键 词：髓腔内漂白 死髓牙 牙漂白术 

分 类 号：R783.9[医药卫生—口腔医学]