1. Hilton, T. J. 2001.Fundamentals of Operative Dentistry — A Contemporary Approach, 2nd edn, Edited by: Summitt, J. B., Robbins, J. W., Hilton, T. J. and Schwartz, R. S. 260–305. Chicago, Illinois: Quintessence.
2. Dental ceramics—an update
3. Darvell, B. W. 2002.Material Science for Dentistry, 9th edn, 483–502. HongKong, China: B. W. Darvell.
4. Ceramics in dentistry: Historical roots and current perspectives