Symons A L, Wing G, Hewitt G H
J Oral Rehabil. 1987 Jan;14(1):65-76. doi: 10.1111/j.1365-2842.1987.tb00695.x.
The adaptation of a range of amalgam alloys to the cavosurface margin of Class I cavity preparations was examined for two condensation techniques. The marginal contour of amalgam condensed into the cavity preparation and packed approximately 1 mm past the cavosurface margin was compared with amalgam margins of restorations which were packed to final contour with minimal carving. The effect of burnishing and/or polishing the cavosurface margin was compared with carving the amalgam to the cavosurface margin. Specimens were sectioned, metallographically polished and examined using a light microscope. The technique of overpacking amalgam produced a greater number of acceptable amalgam margins at the cavosurface margin than the condensation technique of packing to final contour, the best cavosurface margin was produced when specimens were burnished and polished, the carved margin being the least desirable. The cuspal incline also influenced the quality of the marginal finish with the difficulty of marginal finishing increasing with the steepness in cuspal incline.
针对两种冷凝技术，研究了一系列汞合金与I类洞预备的洞缘斜面边缘的适应性。将冷凝到洞预备中并填充到超过洞缘斜面边缘约1mm处的汞合金边缘轮廓，与通过最少雕刻填充到最终轮廓的修复体的汞合金边缘进行比较。将洞缘斜面边缘进行打磨和/或抛光的效果与将汞合金雕刻到洞缘斜面边缘的效果进行比较。将标本切片、进行金相抛光并使用光学显微镜检查。与填充到最终轮廓的冷凝技术相比，汞合金超充技术在洞缘斜面边缘产生了更多可接受的汞合金边缘；当标本进行打磨和抛光时，产生的洞缘斜面边缘最佳，而雕刻边缘最不理想。牙尖斜面也影响边缘修整的质量，随着牙尖斜面陡峭程度增加，边缘修整的难度也增加。
