Hunter was one of the greatest surgeons of the eighteenth century. Though not a dentist, he wrote several works that laid the foundation for much future dental research. His first major treatise was this meticulous study of the mouth, jaws, and teeth, which described with unparalleled accuracy the growth of the jaws and their relationship to the muscles of mastication. The work also did much to popularize the terms cuspids, bicuspids, molars, and incisors. The illustrations by the Dutch-born artist Jan van Riemsdyck are renowned both for their accuracy and for their beauty.