Article PDF
Rights and permissions
About this article
Cite this article
Thomas Glyn Noel Williams, B.D.S., L.D.S., D. Orth. Br Dent J 139, 296 (1975). https://doi.org/10.1038/sj.bdj.4803595
Published:
Issue Date:
DOI: https://doi.org/10.1038/sj.bdj.4803595