James Leon Williams.

The North American James Leon Williams (1852 - 1932) was the discoverer of dental plaque, besides being a pioneer in the study and development of dental prostheses. His first work on tooth formation "Studies in the Histo-Genesis of the Teeth and Contiguous Parts" published in May 1882 in the journal Cosmo Dental, put in question the concepts of the great figures of the histology of the time. This contracted many problems among scientists, since at that time it was believed that the tooth was an independent structure and that cavities were produced by worms that lived inside the tooth. Despite all the criticism that James got, he was able to get ahead and get the credibility he deserved. I admire this scientist for the perseverance he had with his investigations, since after approximately two decades the investigations of James could be published. Apart it was the first one to demolish the myth of the toothworm that prevailed during years. Thanks to him, a microbiological revolution in dentistry began which allowed great advances in the area. I love microbiology so James deserves to be in this post.