Raymond A. Kopczyk

The feasibility and reliability of using a home screening test to detect gingival inflammation.

H. Abrams, A. Kaplan, R. Kopczyk, 1995, Journal of periodontology.

A clinical system for scoring a patient's oral hygiene performance.

R. Kopczyk, J. Lenox, Raymond A. Kopczyk, 1973, Journal of the American Dental Association.

Clinical and microbiological effects of a sanguinaria-containing mouthrinse and dentifrice with and without fluoride during 6 months of use.

H. Abrams, A. Kaplan, R. Kopczyk, 1991, Journal of periodontology.