暂时水门汀.PPT

暂时水门汀 第四军医大学口腔医学院 口腔材料教研室 对暂时水门汀的基本要求 必须保证能够固定临时修复体 必须易于清除多余的材料 必须易于去除临时修复体 由于粘接膜非常薄，所以高度精确、适合 粘接强度高，但同时又易于去除临时修复体 没有术后敏感 对牙髓有热保护作用 品种多样： 含丁香油 不含丁香油 高或低硬度 (TempoCem Soft) PermaCem Dual 双固化粘剂 可用于冠、桥、嵌体、高嵌体和贴面 可用于金属、金-瓷冠和所有全瓷冠 修复体 对粘结和粘固的区别 粘结剂为有机疏水性树脂材料,抗压抗张强度远大于无机亲水性水门汀粘固材料 不会溶解 低厚度 具有生物相容性 易于使用 PermaCem 具有 良好的抗压强度 200 MPa 很低的溶解性 2 μg/mm3 很小的厚度 17 μm * The material is dispensed from an automix syringe into the provisional. * After the temporary is placed on the preparation, any excess is allowed to set before the material is removed from the restoration. * Once the cement has set, it can be easily removed from the provisional with a scaler. No petroleum jelly is needed to aid in the clean-up. * Once the cement has set, it can be easily removed from the provisional with a scaler. No petroleum jelly is needed to aid in the clean-up. * The material is dispensed from an automix syringe into the provisional. * After the temporary is placed on the preparation, any excess is allowed to set before the material is removed from the restoration. * Once the cement has set, it can be easily removed from the provisional with a scaler. No petroleum jelly is needed to aid in the clean-up. * Once the cement has set, it can be easily removed from the provisional with a scaler. No petroleum jelly is needed to aid in the clean-up.