A few days back I sent an uncharacteristically polite email to the American Dental Association asking about the 2 minutes of brushing time we’ve had drilled into our heads all these years.
It turns out that may no longer be the official line. Interesting. Below is the response from the science division at the ADA. I’ve redacted the name and contact info of the gentleman who replied. If he happens through and wants his name included, I’ll be happy to do so.
Dear Mr. Kies:
Thank you for your email.
The ADA makes no recommendation regarding time in the brushing of the teeth. In fact, there are no studies that identify a period of time as indicated for the brushing of teeth.
The ADA recommends that patients direct their efforts at cleaning the surfaces of their tooth. The ADA brochure “Toothbrushes and Toothpastes” (2001) states: “Concentrate on cleaning all the surfaces of the teeth.” See also the ADA.org subject page “Cleaning your Teeth and Gums” at www.ada.org/2624.aspx.
When properly used, manual and powered toothbrushes can achieve the same goal – cleaning the surfaces of the teeth. (And we would also recommend the use of dental floss.) Please see “A Look At Toothbrushes” athttp://www.ada.org/sections/scienceAndResearch/pdfs/patient_78.pdf.
Periodical literature on the role of tooth brushing in oral hygiene may be found using PubMed, a search tool of the US National Library of Medicine at http://www.PubMed.gov. Some publications may be accessible in full text (or open access.)
Please let me know if I may be of additional assistance.
Sincerely,
[REMOVED]
Manager, Scientific Information
Council on Scientific Affairs
[REMOVED]
So there you have it. Just do a good job.