Letters to the Editor

Koening JL (1999). Spectroscopy of polymers. 2nd ed. New York: Elsevier, pp. 113-122.

Wieliczka DM , Spencer P. , LeGeros RZ (1996). Surface spectroscopy of apatitic materials: limitations and concerns. J Dent Res 75:1865-1870.

Briggs D. , Seah MP ( 1990). Practical surface analysis. Vol. 1. Auger and x-ray photoelectron spectroscopy. 2nd ed. New York : John Wiley & Sons.

Gelius U. , Wannberg B. , Baltzer P. , Fellner-Feldegg H. , Carlsson G. , Johansson C-G. , et al. (1990). A new ESCA instrument with improved surface sensitivity, fast imaging properties and excellent energy resolution. J Electron Spectrosc Relat Phenom 52:747-785.

Nakayama Y. , Baltzer P. , Wannberg B. , Gelius U. , Stafstrom S. , Lunell S. (1994). Valence-band structure of PMDA-ODA polyimide studied by x-ray photoelectron spectroscopy and theoretical calculations. J Vac Sci Technol 12(A):772-782.

Nakayama Y. , Persson P. , Lunell S. , Kowalczyk SP , Wannberg B. , Gelius U. (1999). High resolution x-ray photoelectron spectroscopy and INDO/S-CI study of the core electron shakeup states of pyromellitic dianhydride-4,4'-oxydianiline polyimide. J Vac Sci Technol 17(A):2791-2799.

Wieliczka DM , Spencer P. , LeGeros RZ (1996). Surface spectroscopy of apatitic materials: limitations and concerns. J Dent Res 75:1865-1870.

Yoshida Y. , Van Meerbeek B. , Nakayama Y. , Snauwaert J. , Hellemans L. , Lambrechts P. , et al. (2000). Evidence of chemical bonding at biomaterial-hard tissue interfaces. J Dent Res 79:709-714.

Yoshida Y. , Van Meerbeek B. , Nakayama Y. , Yoshioka M. , Snauwaert J. , Abe Y. , et al. (2001). Adhesion to and decalcification of hydroxyapatite by carboxylic acids. J Dent Res (in press).