Complex sentence: Fauchard was the pioneer of dental prosthesis, he discovered many methods to replace the loss of teeth, and stated that substitutes could be made from carved blocks of ivory or bone and those artificially-made dental pieces would be useful as the natural ones.
Split into simpler sentences: Fauchard was the pioneer of dental prosthesis, and he discovered many methods to replace the loss of teeth. He suggested that substitutes could be made from carved blocks of ivory or bone and those artificially-made dental pieces would be useful as the natural ones.