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树脂固位的金属修复体按固位体设计分成称为Rochette桥的大孔固位体和称为M(?)yland桥的酸蚀粘接金属微孔固位体。离体试验表明酸蚀粘接金属固位体比大孔固位体有更好的临床性能。本文调查了固化体设计方式对成功率的影响。总计101个铸造金属背粘接桥在93位患者口内达9个月(13岁～78岁,平均31.5岁)。其中8人口内同时使用了两种粘接桥。固位体设计为下述A、B、C三型。A型:有5个直径1mm小孔的有孔金属支架,覆盖基牙的舌面。B型:有5个直径1mm小孔的有孔金属支架,覆盖舌面和近缺牙间隙的部分邻面,并呈齿状边缘。C型:有一个无固位的溢出孔的酸蚀粘接金属支架,覆盖舌面。 A、B型用钴—铬合金,C型用镍—铬合
Resin-repositioned metal restorations are designed in a retainer design into macropore retainers referred to as Rochette bridges and etched metal micropore retainers referred to as M (?) Yland bridges. In vitro tests show that acid-etched metal retainers have better clinical performance than macropore retainers. This article investigates the effect of the curing design on the success rate. A total of 101 cast metal backbones were found in 93 patients for 9 months (13-78 years, mean 31.5 years). Eight of the population used two bonded bridges at the same time. Retainers designed for the following A, B, C three types. Type A: A perforated metal stent with 5 holes 1mm in diameter covering the lingual surface of the abutment. Type B: A perforated metal stent with 5 holes 1 mm in diameter covering part of the adjacent faces of the lingual and near-gagged spaces with toothed edges. Type C: An acid-etched metal stent with a retention-free overflow hole covering the tongue surface. A, B type with cobalt - chromium alloy, C type with nickel - chrome