酸性フッ素リン酸溶液塗布及びNd : YAG レーザー照射後のエナメル質表層下脱灰部のSEMによる観察

概要

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The purpose of this research is to observe the morphology of white spot (WS) by scanning electron microscope. Artificial white spot are made on the human enamel surface and then treated with acid phosphate fluoride (APF) and irradiated Nd: YAG laser (50J/cm^2) 1. The surface of natural WS was observed as being a honeycomb like structure. Artificial WS showed a rough surface from sound enamel but also confirmed a minuteness and ruggedness in the image of the smooth prism. 2. APF treatment accelerated the demineralization of the surface of WS. A lot of prisms were clearly observed as having the resultant surface. 3. The surface of WS irradiated with the laser after APF treatment displayed a melted nature, and many craters with 2〜10μm were observed on the surface. Moreover, cylindrical and granular shaped crystals 1〜2μm in length were observed on the surface under higher magnification.
福岡歯科大学学会の論文
2006-03-25