1. American Society for Testing and Materials: Standard practice for care and use of mouthguards. Designation: F697-80, 1986, p 323
2. National governing bodies;Blyth,1982
3. Bureau of Dental Health Education: Mouth protectors for football players: The dentist's role;J Am Dent Assoc,1962
4. Bureau of Health Education and Audiovisual Services, Council on Dental Materials, Instruments and Equipment: Mouth protectors and sports team dentists;J Am Dent Assoc,1984
5. The Official Encyclopedia of Pro Football,1985