Academics:
Faculty, USC School of Dentistry
Graduate, USC School of Dentistry
Reviewer, Journal of Periodontology
Special Qualifications:
Master,
Academy of General Dentistry
Fellow, International College of
Cranio- Mandibular Orthopaedics
Fellow, International Academy of
Mini Dental Implants
Fellow, International Congress of
Oral Implantologists
Fellow, Institute for Advanced
Laser Dentistry
Permit, Conscious Sedation
Dental Board of California
Professional Associations:
Member, American Dental Association
Member, California Dental Association
Associate Member, American
Academy of Periodontology
Member, American Academy of
Dental Sleep Medicine
Member, American Academy of
Implant Dentistry
Member, American Dental Society
of Anesthesiology
Member, American Academy of
Pain Management
Member, American Academy of
Sleep Medicine
Member, Academy of Microscope
Enhanced Dentistry
Member, Special Care Dentistry
Association
Lectures & Presentations:
San Gabriel Valley Dental Society
San Gabriel Valley Dental
Assistants Society
San Fernando Valley Dental Society
Western Dental Society
Indian Dental Society
Chinese Dental Society
Punjabi Dental Society
Academy for Excellence in Dentistry
University of Texas -
Department of Periodontics
Academy of Laser Dentistry
Everest College
Community Service:
SMILE TALK
Radio Talk Show Host
KFWB, 980 AM
KSPA, 1510 AM
KFSD, 1450 AM
Columnist, Around Alhambra
Columnist, Cascades
Senior Expo
Operation Gratitude
Honors & Recognition:
Doctor of Divinity, Chinese for
Christ Theological Seminary
Lifetime Achievement Award
American Dental Association
California Dental Association
USC Friends of Dentistry
Presidential Level
USC Associates
Recognition for Outstanding
Service, USC School of Dentistry
Articles
John C. Chao, D.D.S., M.A.G.D
Anxiety Management,
Behavior Science,
Faculty, USC School of Dentistry
Save Your Teeth, But Not Your Toothbrush
Consumers should replace toothbrushes approximately every 3-4 months or sooner if the bristles become frayed with use, according to the most recent Statement on Toothbrush Care by the American Dental Association (ADA). The ADA reports that research studies have shown that toothbrushes may harbor microorganisms that could cause oral and/or systemic infection. These microorganisms may be transferred to the toothbrush during use or during storage. Additionally toothbrushes may have organisms on them right out of the box, since they are not required to be stored in a sterile package. Although it has not been scientifically proven so far that any specific systemic disease stems from the transfer of bacteria from the toothbrush to the mouth, the ADA presents the following "common sense" recommendations for toothbrush care:
- Do not share toothbrushes. Sharing a toothbrush could result in an exchange of body fluids and/or microorganisms between the users of the toothbrush, placing the individuals involved at an increased risk for infections. The practice could be a particular concern for persons with compromised immune system or existing infectious disease.
- Thoroughly rinse toothbrushes with tap water after brushing to remove any remaining toothpaste and debris. Store the brush in an upright position if possible and allow the toothbrush to air-dry until used again. If more than one brush is stored in the same holder or area, keep the brushes separated to prevent cross-contamination.
- Do not routinely cover toothbrushes or store them in closed containers. A moist environment such as a closed container is more conducive to the growth of microorganisms than the open air.
- Rinsing with an anti-bacterial mouth rinse before brushing may prevent or decrease how rapidly bacteria build up on toothbrushes.
- Soaking toothbrushes in an antibacterial mouth rinse after use may decrease the level of bacteria that grow on toothbrushes.
- Disposable toothbrushes may be considered, even though cost may be a consideration with long-term use.
- Use only FDA-cleared toothbrush sanitizers.
To keep your teeth clean, you must also keep your toothbrush clean. On a regular basis inspect and replace your toothbrush. And, of course, see your dentist at least every six months.
