Creosote particularly used in dentistry to destroy tissues and arrest necrosis. Coal-tar creosote is the most widely used wood treatment today; both industrially, processed into wood using pressure methods such as "full-cell process" or "empty-cell process", and more commonly applied to wood through brushing. In addition to toxicity to fungi, insects, and marine borers, it serves as a natural water repellant. It is commonly used to preserve and waterproof cross ties, pilings, telephone poles, power line poles, marine pilings, and fence posts. Although suitable for use in preserving the structural timbers of buildings, it is not generally used that way because
Tar Heel History of a Southern State" (3rd edition, 1973) that North Carolina led the world in production of naval stores from about 1720 to 1870. At the time, tar was created by piling up pine logs and burning them until hot oil seeped out from a spout. The vast production of tar from North Carolina led many, including Walt Whitman, to give the derisive nickname of "Tarboilers" to the residents of North Carolina. North Carolina was nicknamed the "Tar and Turpentine State" because of this industry. Somehow, these terms evolved until the nickname Tar Heel was used to refer to residents