MODERN DENTISTRY, fluoride treatments, and preventive care alone can’t stop tooth decay when our diets are filled with sugar!
Bisphenol A and Dental Materials
Council on Scientific Affairs Statement
CHICAGO (April 2013) — Bisphenol A (BPA) has been present in many consumer plastic products and food packaging since the 1960s.1 Some studies have suggested that BPA may have adverse health effects, which has raised concerns about its widespread use.
The food industry uses BPA in the manufacture of hard plastic bottles and the lining that coats metal cans used to hold foods and beverages. Bisphenol A also is found in many other hard plastic products (like toys and plastic tableware). In 2012 in response to a petition from the American Chemistry Council, the FDA removed regulatory authorization for BPA as an additive in baby bottles and spill-proof cups. The FDA stated that this action was not based on safety concerns but rather on the manufacturers’ representation that the industry no longer used BPA in those items.2 BPA is also present in the environment from the release of industrial and household wastes. To a lesser extent, dental materials used to treat and prevent caries can contribute to very low-level BPA exposure for a few hours after placement.3,4,5
BPA might be found in dental composites and sealants for two reasons: 1) it’s a by-product of other ingredients in dental composites and sealants that have degraded, and; 2) it’s a trace material left-over from the manufacture of other ingredients used in dental composites and sealants. ADA research, confirmed by direct communications from dental material manufacturers, indicates that BPA is not used as a formula ingredient in dental materials.
As a product of the degradation of the material in the oral cavity: Composite resins are formulated from a mixture of monomers that are commonly based on bisphenol A diglycidyl ether methacrylate (bis-GMA). Some composite resins may contain other monomers, in addition to bis-GMA, that are added to modify the properties of the resin. An example is bisphenol A dimethacrylate (bis-DMA). Bis-DMA-containing materials can release very small quantities of BPA, because bis-DMA is broken down by salivary enzymes.
As a trace material: BPA is used in the production of other ingredients found in many dental composites and sealants. Bis-DMA and bis-GMA are both produced using BPA as a starting ingredient, so residual BPA, which was not chemically converted into bis-DMA or bis-GMA, is likely present in trace amounts in any dental material containing these ingredients.
The U.S. Department of Health and Human Services (HHS) provides scientific guidance on issues that affect the health of Americans, and the U.S. Food and Drug Administration (FDA) provides advice and recommendations on dental product safety. A 2008 report prepared by the National Toxicology Program (NTP) of the HHS states that, “Dental sealant exposure to bisphenol A occurs primarily with use of dental sealants [containing] bisphenol A dimethacrylate. This exposure is considered an acute and infrequent event with little relevance to estimating general population exposures.”6 The NTP reported that bisphenol A in food and beverages accounts for the majority of daily human exposure.6 In 2012, the FDA reiterated that “recent studies provide reason for some concern about the potential effects of BPA on the brain, behavior, and prostate gland of fetuses, infants and children.” However, the FDA “recognizes substantial uncertainties with respect to the overall interpretation of these studies and their potential implications for human health effects of BPA exposure. These uncertainties relate to issues such as the routes of exposure employed, the lack of consistency among some of the measured endpoints or results between studies, the relevance of some animal models to human health, differences in the metabolism (and detoxification) of and responses to BPA both at different ages and in different species, and limited or absent dose response information for some studies.”1 Based on this conclusion, the FDA continues to provide for the use of BPA in dental materials, medical devices and food packaging.
According to the CDC, dental caries remains the most common chronic disease of children 6 to 19 years of age—4 times more common than asthma among adolescents aged 14 to 17 years.7 Untreated cavities can cause pain, dysfunction, absence from school, poor appearance and can lead to the spread of infection—problems that greatly affect a child’s quality of life. The utility of composite resin materials for both restoring dental health and preventing caries is well established, while any health risks from their use are not. The ADA fully supports continued research into the safety of BPA; but, based on current evidence, the ADA does not believe there is a basis for health concerns relative to BPA exposure from any dental material.
The ADA is a professional association of dentists committed to the public’s oral health. As such, the ADA supports ongoing research on the safety of existing dental materials and in the development of new materials. Based on current research, the Association agrees with the authoritative government agencies that the low-level of BPA exposure that may result from dental sealants and composites poses no known health threat.
1. Bisphenol A (BPA). U.S. Food and Drug Administration.
http://www.fda.gov/NewsEvents/PublicHealthFocus/ucm064437.htm accessed January 11, 2013.
2. Indirect Food Additives: Polymers. A Rule by the Food and Drug Administration on 07/17/2012.https://www.federalregister.gov/articles/2012/07/17/2012-17366/indirect-food-additives-polymers accessed January 11, 2013.
3. Joskow R, Boyd Barr D, Barr JR, Calafat AM, Needham LL, Rubin C. Exposure to bisphenol A from bis-glycidyl dimethacrylate-based dental sealants. J Am Dent Assoc. 2006;137:353-62.
4. Fleisch, A.F., Sheffield, P.E., Chinn, C., Edelstein, B.L., and Landrigan, P.J. (2010). Bisphenol A and related compounds in dental materials. Pediatrics. 2010;126(4):760-768.
5. Kingman A, Hyman J, Masten SA, Jayaram B, Smith C, Eichmiller F, Arnold MC, Wong PA, Schaeffer JM, Solanki S, Dunn WJ. Bisphenol A and other compounds in human saliva and urine associated the placement of composite restorations. J Am Dent Assoc . 2012;143(12):1292-1302.
6. National Toxicology Program. Center for the Evaluation of Risks to Human Reproduction. Monograph on the Potential Human Reproductive and Developmental Effects of Bisphenol A. NIH Publication No. 08-5994, September 2008.
7. Department of Health and Human Services. Centers for Disease Control and Prevention. Preventing Dental Caries with Community Programs. 2010 http://www.cdc.gov/oralhealth/publications/factsheets/dental_caries.htm accessed January 11, 2013.
A few of our patients have asked about a controversial article surrounding root canals. An article was published stating that teeth with root canals are linked to terminal cancer. There is no valid research linking root canal teeth to disease elsewhere in the body.
We had a very successful candy trade in at Boger Dental. We collected 110 pounds of Halloween candy from our "trick or treaters"! Thank you to our Boger Dental Team for helping with those brave children ready to hand over their candy for cash! Dr. Chad Boger and Dr. Joe Madden donated $220 to those children, along with a goodie bag including toothbrush, toothpaste, floss, and lip balm. We would like to personally thank Lori Lorence, Lorelle Eng, and Enisa Gluhic for coming in on Saturday to help out with this event.
A big thank you to our Boger Dental team that supported the 3rd Annual Walk/Run for the Twin Cities. The event is sponsored by The Oral Cancer Foundation. Dr. Chad Boger, Dr. Joe Madden, Michelle Sensat and Natalie Christiensen graciously took time out of their weekend to support this wonderful cause. At Boger Dental, we are at the forefront of detecting oral cancer. We have the distinct advantage of seeing much more than a physician would be able to detect. Generally, we are seeing patients 2-4 times per year versus an annual physical visit to your physician. At each dental hygiene visit, both your Dentist and Dental Hygienist are completing a thorough oral cancer screening. If we do see a lesion that looks suspicious, we are working very closely with the referring oral surgeons to make sure that you are receiving the best care possible.
We are proud to announce the reintroduction of our Children's Brushing Reward Program at Boger Dental! Your children will be rewarded with a chance to win a prize each month by simply getting a report from the Dentist that they are cavity free. During each dental visit with their dental hygienist your child not only leaves with a clean teeth, but a chance to win an assortment of prizes, such as movie tickets, Skyzone passes, Pump It Up passes, or a new Sonicare toothbrush. If your child receives a good oral hygiene report from their Dental Hygienist and the Dentist does not find any cavities, they can enter their name into our monthly drawing! Children aged 3-12 years old are eligible for our program. If your child wins, we will notify the parents via phone or email of the fantastic news! We would love to share the winner's photo on our"Kid's Korner"display, so we would need to get permission from the parents to showcase their child's hard work. We welcome you to take a look at this display when you are in for you next visit to Boger Dental. Your children's oral health is our number one priority when they are at our dental office and we strongly believe each child deserves to be recognized for their above and beyond work at keeping their teeth and gums healthy and cavity free ! If you have any questions regarding our new program, please email firstname.lastname@example.org
We had the opportunity to have two of our charitable organizations come to our office last week to give them our donations for 2013. On the left is our dental team with Smile Network International, who are our international partner. On the right are our Doctors with Ronald McDonald House Charities, who are our local partner. As a team, we donated over $20,000 to these two wonderful partners. Our dental team worked very hard to gain these donations from our patients and for that we say thank you! Not only do our patients benefit with a brighter smile, they help underserved children benefit from a healthier smile. 100% of our patient donations go directly to the children who need dental care. Smile Network International organizes dental groups that travel around the world to correct children with cleft lip/palate deformities. Ronald McDonald Care Mobile travels locally to underserved children who would otherwise not receive any dental care. Boger Dental is honored to be a part of both these organizations and look forward to future opportunities that our dental team may be a involved in. Please take a look at what these organizations are doing to better the dental health of our underserved populations. www.rmhc-um.org and www.smilenetwork.org
Tiger Oaks Publishing hosted a "Best of Plymouth & Maple Grove" this past Tuesday night to reveal the results of surveys conducted respectively by Plymouth Magazine and Maple Grove Magazine. It was a beautiful night out at Rush Creek Golf Club with a silent auction to benefit two worthy organizations that serve our communities, Interfaith Outreach and Community Partners and CROSS Food Shelf.
Two sure signs of a healthy dental team are the longevity of the group and the tenure of its members. At Boger Dental in Plymouth, we have been fortunate to bring together and retain some fantastic dental professionals over the years. Several of our team members have been with us for over ten, 15 and 20 years. Melissa Polansky has been a faithful member of the Boger Dental for 25 years now. We are grateful for her loyal dedication to our dental practice and the high standard she sets patient service by our administrative team.