| 2006N-0352 | |||||||||||||||||||||||
| FDA Comment Number : | EC30 | ||||||||||||||||||||||
| Submitter : | Mrs. Diana Green | Date & Time: | 09/05/2006 11:09:28 | ||||||||||||||||||||
| Organization : | Mrs. Diana Green | ||||||||||||||||||||||
| Category : | Individual Consumer | ||||||||||||||||||||||
| Issue Areas/Comments | |||||||||||||||||||||||
| GENERAL | |||||||||||||||||||||||
| GENERAL | |||||||||||||||||||||||
| I had an interesting experience with my teeth this last week and a friend
suggested I write to you about it. I am a 69-year-old woman with five aged amalgam fillings. I eat right, don't smoke or drink and keep active. A week ago, I noticed my teeth were dingy. So I began brushing my teeth 2-3 times a day with a 3% solution of hydrogen peroxide. After each brushing, I also swished some more peroxide around in my mouth for a minute, before spitting it out. Each time (especially the first) I noticed a metallic taste in my mouth afterward. I thought I should look up on the Internet to see if the peroxide would react with my fillings. But I didn't get around to it. I assumed that if there were any danger, the teeth-whitening business would have advised its customers. By the third day of using peroxide, I developed arthritic pains in my ankles, legs, wrists and arms. I have never had arthritis in my life and wondered what was happening. Then it struck me. I remembered hearing recently that amalgam had mercury in it. Could the mercury in my fillings be poisoning me? I was startled to discover on www.pubmed.gov that many scientific studies indicated that peroxide did indeed increase mercury release into the body. (See some of the specific reports below.) Of course, I immediately stopped using the peroxide. The next few days I was involved in house redecorating and yard work that caused a great deal of perspiration. I think that helped me get rid of some of the poison because I now no longer have any pains (in spite of the hard work.) It seems obvious to me that the mercury in my fillings had a definite toxic effect on my body. Sincerely,Diana Green Changes in surface levels of mercury, silver, tin, and copper of dental amalgam treated with carbamide peroxide and hydrogen peroxide in vitro. by Rotstein I, Mor C, and Arwaz JR. Department of Endodontics, Hebrew | |||||||||||||||||||||||
| University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel.
rotstein@cc.huji.ac.il "CONCLUSIONS: It appears that prolonged treatment with bleaching agents may cause microstructural changes in amalgam surfaces, possibly INCREASING EXPOSURE OF PATIENTS TO TOXIC BYPRODUCTS." The effect of bleaching agents on mercury release from spherical dental amalgam. by Certosimo A, Robertello F, Dishman M, Bogacki R, Wexel M. Virginia Commonwealth University, Department of General Practice, Richmond, USA. "CONCLUSIONS: All groups exposed to bleach showed INCREASED MERCURY RELEASE over time." Mercury release from dental amalgam after treatment with 10% carbamide peroxide in vitro. by Rotstein I, Dogan H, Avron Y, Shemesh H, and Steinberg D. Department of Endodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel "CONCLUSIONS: Treatment with 10% carbamide peroxide bleaching agents caused an INCREASE IN MERCURY RELEASE from amalgam restorations, possibly increasing exposure of patients to its adverse effects. Amalgam brands differed in the amounts of mercury release after bleaching with carbamide peroxide." Mercury in solution following exposure of various amalgams to carbamide peroxides. by Hummert TW, Osborne JW, Norling BK, and Cardenas HL. Division of Biomaterials, University of Texas Health Science Center, Dental School, San Antonio 78284-7890. "All background mercury levels were zero, but following the experiment there were SIGNIFICANTLY HIGHER AMOUNTS OF MERCURY in the CP solutions as compared to the 100% saline solutions. These results suggest there is an active oxidation of the amalgam releasing mercury ions into solution." Protective effect of Copalite surface coating on mercury release from dental amalgam following treatment with carbamide peroxide. by Rotstein I, Dogan H, Avron Y, Shemesh H, Mor C, Steinberg D. Department of Endodontics, Hebrew University-Hadassah Faculty of Dental Medicine, Jerusalem, Israel. rotstein@cc.huji.ac.il "CONCLUSION, exposure of amalgam | |||