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首页> 外文期刊>Dental materials >Nondestructive monitoring of the repair of enamel artificial lesions by an acidic remineralization model using polarization-sensitive optical coherence tomography
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Nondestructive monitoring of the repair of enamel artificial lesions by an acidic remineralization model using polarization-sensitive optical coherence tomography

机译：使用偏振敏感光学相干断层扫描的酸性矿化模型对牙釉质人工病变的修复进行无损监测

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Objectives. It is difficult to completely remineralize carious lesions because diffusion into the interior of the lesion is inhibited as new mineral is deposited in the outermost layers. In previous remineralization studies employing polarization sensitive optical coherence tomography (PS-OCT), two models of remineralization were employed and in both models there was preferential deposition of mineral in the outer most layer. In this study we attempted to remineralize the entire lesion using an acidic remineralization model and demonstrate that this remineralization can be monitored using PS-OCT. Methods. Artificial lesions approximately 100-150 |xm in-depth were exposed to an acidic remineralization regimen and the integrated reflectivity from the lesions was measured before and after remineralization using PS-OCT. Results. Automated integration routines worked well for assessing the integrated reflectivity for the lesion areas after remineralization. Although there was a high degree of remineralization, there was still incomplete remineralization of the body of the lesion. Conclusion. This study demonstrated that PS-OCT can be used to non-destructively measure changes in lesion structure and severity upon exposure to an acidic remineralization model. This study also demonstrated that automated algorithms can be used to assess the lesion severity even with the presence of a weakly reflective surface zone.
机译：目标。很难完全使矿物质矿化，因为当新的矿物质沉积在最外层时，会抑制扩散到病灶内部。在先前的采用极化敏感光学相干断层扫描（PS-OCT）的再矿化研究中，采用了两种再矿化模型，并且在这两种模型中，最外层均优先沉积矿物。在这项研究中，我们尝试使用酸性再矿化模型对整个病灶进行再矿化，并证明可以使用PS-OCT监测该再矿化。方法。将深度约100-150 | xm的人造病变暴露于酸性再矿化方案，并使用PS-OCT在再矿化之前和之后测量病变的综合反射率。结果。自动化的积分程序可以很好地评估矿化后病变区域的积分反射率。尽管再矿化的程度很高，但病变部位仍未完全矿化。结论。这项研究表明，PS-OCT在暴露于酸性矿化模型后可用于无损测量病变结构和严重程度的变化。这项研究还表明，即使存在弱反射表面区域，自动化算法也可用于评估病变严重程度。

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