绿茶提取物对牙本质侵蚀治疗的影响：一项体外研究。
Effect of green tea extract on the treatment of dentin erosion: an in vitro study.
作者信息
Mirkarimi M, Toomarian L
机构信息
Assistant Professor, Pediatric Dentistry Department, Children and Adolescence Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
出版信息
J Dent (Tehran). 2012 Fall;9(4):224-8. Epub 2012 Dec 31.
OBJECTIVE
The aim of this study was to analyze the impact of green tea on dentin erosion.
MATERIALS AND METHODS
Twelve extracted sound human premolars were immersed in Coca Cola with a pH of 2.8 for 5 minutes. The surface microhardness was measured with a Knoop diamond under a load of 50gr/10s. The teeth were immersed in green tea (Camellia sinensis) solution for one minute. The microhardness values were measured again and compared with pretreatment values by the Wilcoxon test. Three eroded teeth, which were treated with green tea, were evaluated under scanning electron microscope.
RESULTS
The mean ± SD of microhardness values before and after immersion in green tea were 46.5±2.79 and 54.5±4.4, respectively with statistically significant differences between the two measurements (P<0.01). In SEM evaluation there was an improvement in eroded dentin appearance and there were deposits on the dentin surface.
CONCLUSION
Green tea (Camellia sinensis) increased the microhardness of eroded dentin and improved the eroded texture.
目的
本研究旨在分析绿茶对牙本质侵蚀的影响。
材料与方法
将12颗拔除的健康人前磨牙浸泡在pH值为2.8的可口可乐中5分钟。在50克/10秒的载荷下，用努氏金刚石测量表面显微硬度。将牙齿浸泡在绿茶（茶树）溶液中1分钟。再次测量显微硬度值，并通过威尔科克森检验与预处理值进行比较。对三颗经绿茶处理的侵蚀牙齿进行扫描电子显微镜评估。
结果
浸泡绿茶前后显微硬度值的平均值±标准差分别为46.5±2.79和54.5±4.4，两次测量之间存在统计学显著差异（P<0.01）。在扫描电子显微镜评估中，侵蚀的牙本质外观有所改善，牙本质表面有沉积物。
结论
绿茶（茶树）提高了侵蚀牙本质的显微硬度，并改善了侵蚀纹理。
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