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金瓷结合面经常出现的一个问题是如何修补金瓷修复体的崩瓷面。本实验的目的是确定烤瓷熔附金属修补的不同表面处理对其粘接强度的影响。 材料和方法 样品为Bioband Ⅱ合金铸件,随机分成3个表面处理组:金属、烤瓷及金属瓷结合表面。实验测试了Bioband瓷粉系统和商品修补瓷的结合。金属表面处理组进一步分成2个小组:对照组和喷砂处理组(Al_2O_3,50目,20s)。烤瓷表面处理组又分成3小组:①对照,②喷砂处理,③9.5％氢氟酸酸蚀4min。金
One of the most common problems with gold-porcelain joints is how to repair the porcelain surface of porcelain restoration. The purpose of this experiment is to determine the impact of the different surface treatments of the ceramic fused metal repair on the bond strength. Materials and Methods The samples were Bioband II alloy castings and were randomly divided into three surface treatment groups: metal, porcelain and metal-ceramic bonded surfaces. The experiment tested the combination of Bioband porcelain system and commercial repair porcelain. The metal surface treatment group was further divided into two groups: control group and sandblasting group (Al 2 O 3, 50 mesh, 20s). Porcelain surface treatment group is divided into 3 groups: ① control, ② sand blasting, ③ 4.5% hydrofluoric acid etching 4min. gold