1. 1. Furseth R and Mjör I A. Cementum. In: Histology of the human tooth, ed. by Mjör I.A. and Pindborg J.J., Munksgaads, Copenhagen, 1973, pp97-119.
2. 2. Berkovitz B K B, Holland GR and Moxham BJ. Cementum. In: Oral Anatomy, Embryology and Histology, ed. by Berkovitz B.K.B., Holland G.R., Moxham B.J, Mosby, Edinburgh, 2002 pp168-179.
3. 3. Nanci A and Somerman M J. Periodontium. In: Ten Cate’s Oral Histology, ed. by Nanci A., Mosby, St. Louis, 2003, pp240-259.
4. 4. Young W G. Growth hormone and insuline-like growth factor-I in odontogenesis. Int J Dev Biol 39: 263-272, 1995
5. 5. Murakami S, Takayama S, Kitamura M, Shimabukuro Y, Yanagi K, Ikezawa K, Saho T, Nozaki T and Okada H. Recombinant human basic fibroblast growth factor (bFGF) stimulates periodontal regeneration in class II furcation defects created in beagle dogs. J Periodontal Res 38: 97-103, 2003