Dahl B L
J Oral Rehabil. 1977 Jul;4(3):247-54. doi: 10.1111/j.1365-2842.1977.tb00989.x.
Scanning electron microscopy was used to study the formation of a dentine smear in ten premolars ground with a water-cooled diamond in an air turbine. In another ten teeth the pulp reaction in full crown preparation with the same armamentarium was investigated by histological techniques. The findings revealed the formation of a dentine smear which was easily removed by light polishing with wet pumice, leaving plugs of debris in the tubule apertures. The clinical significance of these findings needs further investigation. No bacteria were demonstrated on the prepared surfaces either in the scanning electron micrographs or histologically when stained with Brown & Brenn stain. Severe, acute pulp reactions were observed subjacent to the dentinal tubules cut in full crown preparation. This technique should therefore be limited to superficial use only.
使用扫描电子显微镜研究了用风冷涡轮机中的水冷金刚石研磨的十颗前磨牙中牙本质涂片的形成。用相同器械进行全冠制备时，用组织学技术研究了另外十颗牙齿的牙髓反应。研究结果显示形成了牙本质涂片，用湿浮石轻轻抛光即可轻松去除，牙本质小管开口处留有碎屑栓。这些发现的临床意义需要进一步研究。在扫描电子显微镜照片中或用布朗和布伦染色法进行组织学染色时，在制备的表面均未发现细菌。在全冠制备中切割的牙本质小管下方观察到严重的急性牙髓反应。因此，该技术应仅限于浅表使用。
