铸造桩和核的形成可用于根管治疗后的残冠和RPD修复。采用分段成形可避免树脂桩核内部产生气泡和因倒凹产生的锁结。制作核的模片有①常用的tofflemine型片环,②铜圈,③暂时冠,④成品核。作者用药用胶囊作为模片直接制作核。药用胶囊型号多,易获得,易修整,不与甲基丙烯甲脂、复合树脂、玻璃离子粘固剂等充填材料反应,与核分离简单、迅速,可用锐器去除或水雾溶解。方法①常规方法制作根管铸造塑料桩;②选择适当大小的胶囊,修整使之与牙预备形状吻合;③用装有 Cast piles and nucleus formation can be used for residual crown and RPD repair after root canal therapy. The use of segmented shape can prevent bubbles generated inside the resin post core and lock due to undercut. The production of nuclear modules are ① common tofflemine type ring, ② copper ring, ③ temporary crown, ④ finished core. The author uses medicinal capsules as a direct production of nuclear cores. Medical capsule model and more easy to get, easy to trim, not with methyl methacrylate, composite resin, glass ionomer cement filling material reaction, and the nuclear separation is simple and rapid, available sharp removal or water mist dissolved. Methods ① conventional method of making plastic pipe root canal casting; ② select the appropriate size capsule, dressing to make it consistent with the shape of the tooth preparation; ③ with