R. F. Birtcil

The marginal seal afforded by new cavity varnishes.

D Kempler, M M Stark, H Judes, 1977, CDA journal.

Extracoronal amalgam restorations utilizing available tooth structure for retention.

R. F. Birtcil, E. A. Venton, 1976, The Journal of prosthetic dentistry (Print).

A 30-month Clinical Evaluation of the Influence of Finishing and Size of Restoration on the Margin Performance of Five Amalgam Alloys

R. Pelzner, M. Stark, R. F. Birtcil, 1981, Journal of dental research.

Individualized matrix bands for amalgam restorations.

J. Starr, R. F. Birtcil, 1975, The Journal of prosthetic dentistry.