Dr. Urban on Today’s Dentistry/Fluoride and the Continuing Saga

Fearful that communists were fluoridating our water supply General Jack D. Ripper in the movie Dr. Strangelove started a nuclear war with Russia. The absurdity is that it reflected the public controversy at the time over the addition of fluoride to our water to help lower the incidence of dental decay. I would like to discuss the brief history of fluoride and the impact it has made.

Modern dentistry came into it’s own early in the 20th century. It was observed that people who lived in areas of the country with naturally higher levels of fluoride in their water had fewer cavities. Research after World War II confirmed that optimal levels of fluoride (0.7-1.0 ppm) reduced cavities by 20%-40%. Furthermore, fluoride was relatively inexpensive and could be safely added to water much like chlorine for general consumption.

Consequently, other formulations (NaF)) of fluoride began to appear in dentifrices and rigorously advertised as anti-cavity agents. This reduction of decay proved especially true in European countries that did not add fluoride to water. Fluoride continues today as one of the great advances in preventing tooth decay.

The public outcry over fluoridating water was eased with announcements from public health agencies like the World Health Organization and professional societies like the ADA that optimal levels of fluoride were safe. There are still those who would believe otherwise.

When I went to dental school it was believed that ingestion of fluoride during childhood was most beneficial. The fluoride was “taken up” in the developing tooth enamel before it erupted and, hence, made the enamel more decay resistant. Although this was somewhat true it proved to be only part of the story. It is now acknowledged that topical applications of fluoride are more effective with the interference of cavity formation.

Dentists have been using topical fluoride rinses (acidulated phosphate fluoride-APF) for years. They come as liquid rinses, gels, or foams and have been very effective in reducing cavities on the smooth surfaces of teeth. I have been most impressed with newer fluoride varnishes (5% NaF). They are extremely safe and are used in adults and children under 1 year. Stronger prescription toothpastes (1.1% NaF) are dispensed as an at-home adjunct for some people.

Are you getting tired yet? Unless you have a lot of time on your hands don’t try to remember this information. Let your dentist and especially your hygienist recommend the best prevention program for your needs. Some of the newer dentifrices are more costly than standard toothpastes. However, when only costs are compared you could buy a three-year supply for less than the cost of one filling.

Back to General Jack D. Ripper. Concern and over reaction are two different beasts. It is smart to be concerned and informed when making health choices. Over reaction is usually based on fear and mistrust. It is ironic that dentists are basically trying to work themselves out of a job by eliminating the very thing they are paid to fix.

For answers to your dental questions, contact
Douglas Urban, D.D.S.
Cerritos, CA 90703
562 924-1523
DrDouglasUrban.com