摘要
目的:探究不同漂白剂对大鼠氟斑牙氧化脱色后釉质颜色、硬度和结构特征变化。方法:通过Vita比色板、显微硬度计和扫描电子显微镜等观察30%H2O2、1%ClO2、1%H2O2+1%CaCl2、1%H2O2+50U/ml辣根过氧化物酶5组漂白处理对大鼠氟斑牙的脱色效果(n=11~12)。结果:ClO2对大鼠氟斑牙漂白效果最明显;1%H2O2+1%CaCl2处理对釉质硬度影响较小;1%H2O2+过氧化物酶、30%H2O22种处理对釉质结构影响相近。结论:ClO2对氟斑牙漂白效果明显,少量钙离子可减少漂白处理对牙体硬度的影响。
Objective:To investigate the whitening effects of fluorotic teeth in rats with different bleaching agents.Methods:30%H2O2,1%ClO2,1%H2O2+1%CaCl2 and 1%H2O2+50 U/ml horseradish peroxidase were used to bleach the fluorotic teeth in rats(n=11-12 teeth),and the bleaching effects were measured by Vita colorimetric plate,micro hardness tester and SEM.Results:The whitening effect of ClO2 was more obvious than that of other agents.1%H 2O 2+CaCl2 group showed the least impact on the hardness of the tooth.The changes on the enamel structure of 1%H2O2+horseradish peroxidase group was similar to that of 30%H 2O2.Conclusion:The addition of calcium ions into the bleaching agents may alleviate the influence of hardness of fluorotic teeth after whitening.ClO2 is effective for whitening of fluorotic teeth.
作者
林丹乐
任丽娜
邱震
瞿亚宁
李陆义
刘斌
LIN Danle;REN Lina;QIU Zhen;QU Yaning;LI Luyi;LIU Bin(School of Stomatology,Lanzhou University,731000,China;The First Clinical Medical College,Lanzhou University)
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2020年第3期451-453,共3页
Journal of Practical Stomatology
基金
2018年兰州大学大学生创新创业行动计划项目(编号:20180150064)。
关键词
氟斑牙
美白
釉质
漂白剂
Fluorotic teeth
Whitening
Enamel
Bleaching agents
