陶瓷有许多性能适合于口腔应用:没有毒性,能抵抗各种化学的侵蚀,是一种良好的热绝缘体,且具有低的热膨胀系数。但陶瓷也有一些缺点:烧结时体积的收缩高达40%;陶瓷的多孔性使材料变弱和增加了它的不透明性;虽然陶瓷的抗压性强,但较脆 Ceramics have many properties suitable for oral applications: non-toxic, resistant to various chemical attacks, a good thermal insulator, and a low coefficient of thermal expansion. However, ceramics also have some disadvantages: the volume shrinks up to 40% upon sintering; the porosity of the ceramic weakens the material and increases its opacity; while ceramic is more compressive, it is more brittle