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口腔内直接修复金属烤瓷修复体缺损的关键是瓷粘结面的处理，本文通过氢氟酸对瓷酸蚀刻，修复后临床观察５～３０个月，临床效果好。酸蚀刻后的瓷粘结面在金相显微镜下观察到有微孔，小的沟槽的精糙表面。
The key to repair the defect of metal porcelain restoration directly in oral cavity is the treatment of porcelain adhesion surface. In this paper, clinical observation of 5 ~ 30 months after hydrofluoric acid etching of porcelain is done and the clinical effect is good. The acid-etched ceramic bonded surface was observed under a metallographic microscope to have fine pores and a fine groove with a fine rough surface.