口腔氧化锆修复材料分代之我见

My opinion on the generations of dental zirconia materials

氧化锆全瓷材料由于具有良好的生物相容性和美学性能,逐渐取代金-瓷修复体广泛用于修复领域。传统的氧化锆全瓷修复体需要在氧化锆基底表面塑堆饰面瓷,但饰面瓷容易崩瓷。近些年来,临床上出现了使用全氧化锆修复体的趋势,但是,临床上可供医生选择的全锆修复材料较多,如何选择适当的氧化锆材料成为修复医生的挑战。氧化锆全瓷修复材料根据材料组成和透光性能等分为4代。本综述介绍了4代氧化锆全瓷材料的材料组成、力学性能、透光性能、临床适应证等。

Given their high biocompatibility and esthetic potential,zirconia materials are a suitable alternative to metalbased restorations for many indications within restorative dentistry.Zirconia frameworks are usually veneered with veneering ceramics,but the latter is easily broken from the former.Recent years have demonstrated a clear trend toward monolithic zirconia restorations in dental clinics.Because of the great number of options currently available,selection of the most suitable restorative zirconia materials in everyday clinical practice has become a complex and challenging task.Zirconia materials can be divided into four generations according to their mechanical and optical properties.This review describe the constituents,physical properties,and indications of the four types of available zirconia materials.