Research Interests:
Chemical, physical and biological properties of dental biomaterials; Optical properties of esthetic biomaterials and the theoretical bases for determining optical characteristics; Mathematical modeling of properties of biomaterials; Optimization of chemical compositions; Research design.

Courses Taught (Director or Co-Director):
Dentistry 629; 700.08; 802
Dental Hygiene 373

Publications:
Click here to see my publications via PubMed.

Please ignore all articles listed by the above PubMed link published in Br J Psychol, Cancer Res, or Am J Surg.

Other publications not listed by PubMed:

Dotrong MH, Johnston WM, Culbertson BM. Visible light-curable N-methacryloylglutamic acid modified polyelectrolytes for use in dental applications.  J Macromol Sci - Pure Appl Chem 2000;A37(8):911-26.

Ragain JC, Johnston WM.  Color acceptance of direct dental restorative materials by human observers. Color Res Appl 2000;25(4):278-85.

Xie D, Culbertson BM, Johnston WM. Formulation of visible light-curable glass-ionomer cements containing N-vinylpyrrolidone.  J Macromol Sci - Pure Appl Chem 1998;A35(10):1631-50.

Xie D, Culbertson BM, Johnston WM. Improved flexural strength of N-vinylpyrrolidone modified acrylic acid copolymers for glass-ionomers.  J Macromol Sci - Pure Appl Chem 1998;A35(10):1615-29.

Ebert DW, Roberts C, Farrar SK, Johnston WM, Litsky AS, Bertone AL.  Articular cartilage optical properties in the spectral range 300-850 nm. J Biomed Optics July, 1998;3(3):326-33.

Xie D, Culbertson BM, Johnston WM. Determination of the optimal molar ratio for acrylic acid copolymers, containing N-vinylpyrrolidone, using statistical design of experiment. Polym Prepr 1998;39(1):641.

Johnston WM, O'Brien WJ, Tien T-Y. Concentration additivity of Kubelka-Munk optical coefficients of porcelain mixtures. Color Res Appl 1986;11:131 137.

Johnston WM, O'Brien WJ, Tien T Y. The determination of optical absorption and scattering in translucent porcelain. Color Res Appl 1986;11(2):125 30.

Woolsey GD, Johnston WM, O'Brien WJ. Masking power of dental opaque porcelains. J Dent Res 1984;63(6):936 9. Erratum: J Dent Res 63:1115.