1. Guidelines for infection control in dental health-care settings: 2003;Kohn;MMWR Recomm Rep,2003
2. Control of cross-infection risks in the dental operatory: prevention of water retraction by bur cooling spray systems;Crawford;JADA,1988
3. Cross-infection risks associated with current procedures for using high-speed dental handpieces;Lewis;J Clin Microbiol,1992
4. Cross-contamination potential with dental equipment;Lewis;Lancet,1992
5. Contamination of dental unit cooling water with oral microorganisms and its prevention;Bagga;JADA,1984