1. K.J. Anusavice, Ch 24 in Phillip’s Science of Dental Biomaterials, 10th edn. (Saunders, Philadelphia, 1996), pp. 525–554
2. J. Hicks, F. Garcia-Godoy, K. Donly, K. Flaitz, J. Calif. Dent. Assoc. 31, 229 (2003)
3. E.C. Combe, F.J.T. Burke, W.H. Douglas, Ch 6 in dental biomaterials. (Kluwer Academic Publishers, Norwell, MA, 1999), pp. 190–280
4. Y.H. Li, G.H.W. Bowden, J. Dent. Res. 73, 1615 (1994)
5. L. Forsten, Biomaterials 19, 509 (1998)