Dr. Al Johnson's office was built in 1998 and contains very modern equipment to ensure you are getting the care you deserve. We use only the highest quality dental materials available. We follow and exceed all the standards and requirements for sterilization and disinfection outlined by the American Dental Association (ADA) and Occupational Safety and Health Administration (OSHA). Your protection is one of our foremost concerns. Dr. Al Johnson's practice services the York county areas of York, Clover, Rock Hill and Hickory Grove/Sharon. In addition, he also treats clients from neighboring North Carolina cities. Dr. Johnson is a national and state board certified dentist in North and South Carolina.. Dental Implants Implants