Effects of toothbrushing on eroded dentine
Effects of toothbrushing on eroded dentine
复制标题
DOI：
10.1111/j.1600-0722.2007.00466.x
复制
发表时间：
2007-10-01
影响因子：
1.9
通讯作者：
Klimek, Joachim
中科院分区：
文献类型：
--
作者：
Ganss, Carolina;Schlueter, Nadine;Klimek, Joachim
这是一个既定的假设，被侵蚀的牙齿硬组织特别容易发生牙刷磨损。只有几项研究的目的是证明牙本质是这样的，如果是这样的话，就忽略了这种组织的复杂组织结构。因此，本研究试图(I)调查刷牙对牙本质侵蚀的影响，以及(Ii)分析有机基质如何影响已建立的牙齿硬组织丢失量化方法的结果。用光学(P-O)和机械(P-M)轮廓术、纵向X射线照相(LMR)和扫描电子显微镜(SEM)研究了刷牙的效果。扫描电子显微镜照片显示，已形成脱矿有机层，未受刷牙的影响。在物质损失方面，侵蚀样品和侵蚀/磨损样品之间没有显著差异。然而，当比较不同方法的结果时，出现了相当大的差异。P-O的物质损失值最低(7.0+/-3.4m m)，而LMR的物质损失值最高(109.8+/-10.7m m)。当有机物质被酶法去除时，所有方法都得到了相似的结果。这项研究的结果并不支持刷牙会增加侵蚀牙本质的物质损失的观点。轮廓测量法不适合测量矿物质流失，除非去除有机物质。
It is an established assumption that eroded dental hard tissues are particularly prone to toothbrush abrasion. Only a few studies have aimed to show this for dentine and, if so, disregarded the complex histological structure of this tissue. Therefore, the present study sought (i) to investigate the effects of toothbrushing on eroded dentine and (ii) to analyze how the organic matrix influences the outcome of established methods for quantifying dental hard tissue loss. The effects of brushing were investigated by optical (P-O) and mechanical (P-M) profilometry, by longitudinal microradiography (LMR), and by scanning electron microscopy (SEM). The SEM images showed that a demineralized organic layer had developed, which was unaffected by brushing. For substance loss, there was no significant difference between eroded and eroded/abraded samples. Considerable differences occurred, however, when results from the different methods were compared. P-O yielded the lowest (7.0 +/- 3.4 mu m) and LMR the highest (109.8 +/- 10.7 mu m) substance loss values. When the organic material was removed enzymatically, all methods gave comparable results. The results of this study do not lend support to the notion that brushing increases substance loss of eroded dentine. Profilometry was not suitable for measuring mineral loss, unless the organic material was removed.