Exposure to mercury may pose a greater health risk in certain groups of people, who may be more susceptible to potential adverse effects generally associated with mercury.
These high-risk populations include:. If you fall into any of the greater risk groups listed above, the FDA strongly encourages the use of non-amalgam restorations fillings such as composite resins and glass ionomer cements if your dentist thinks these materials are appropriate for your affected tooth's structure and location, and if you have no history of allergic reaction or hypersensitivity to these materials.
The FDA does not recommend anyone remove or replace existing amalgam fillings in good condition unless it is considered medically necessary by a health care professional for example, documented hypersensitivity to the amalgam material. Removing intact amalgam fillings results in unnecessary loss of healthy tooth structure and a temporary increase in exposure due to additional mercury vapor released during the removal process. The durability of any tooth restoration depends on many factors besides dental filling material.
To help your teeth and fillings last as long as possible, you should maintain a healthy diet, proper oral hygiene, and regular dental checkups.
Everyone should discuss treatment options, including their associated benefits and risks, with your dentist. View the FDA's informational brochure for patients and ask your dentist if you have additional questions. FDA is responsible for ensuring that dental amalgam is reasonably safe and effective.
Among other things, FDA also makes sure the product labeling for dentists has adequate directions for use and includes applicable warnings. The choice of dental treatment rests with dental professionals and their patients, so talk with your dentist about available dental treatment options.
In its Amalgam Separators and Waste Best Management , the American Dental Association recommends a series of amalgam waste handling and disposal practices.
If improperly managed by dental offices, dental amalgam waste can be released into the environment. Although most dental offices currently use some type of basic filtration system to reduce the amount of mercury solids passing into the sewer system, dental offices are the single largest source of mercury at sewage treatment plants.
The installation of amalgam separators, which catch and hold the excess amalgam waste coming from office spittoons, can further reduce discharges to wastewater. Without these separators, the excess amalgam waste will be released to the sewers.
From sewers, amalgam waste goes to publicly-owned treatment works POTWs publicly-owned treatment works POTWs A water treatment facility, as defined by Section of the Clean Water Act, that is used in the storage, treatment, recycling, and reclamation of municipal sewage or industrial wastes of a liquid nature, and is owned by a municipality or other governmental entity.
Although dental amalgam is a safe, commonly used dental material, you may wonder about its mercury content. Be assured that credible scientific studies affirm the safety of dental amalgam.
Study after study shows amalgam is safe and effective for filling cavities. The American Dental Association , U. Centers for Disease Control and Prevention and World Health Organization all agree that based on extensive scientific evidence, dental amalgam is a safe and effective cavity-filling material.
Asgar K. Sturdevant's Art and Science of Operative Dentistry. Missouri: Mosby Inc; Massachusetts, U. S: Harvard University; American Society of Dental Surgeons; p. Molin C. Amalgam--fact and fiction. Scand J Dent Res. Bremner MDK. National Institute of Health: Effects and side effects of dental restorative materials.
Whole-body imaging of the distribution of mercury released from dental fillings into monkey tissues. Placental transfer of mercury in pregnant rats which received dental amalgam rstorations. Gastrointestinal and in vitro release of copper, cadmium, indium, mercury and zinc from conventional and copper-rich amalgams.
Berglund A. Estimation by a hour study of the daily dose of intra-oral mercury vapour inhaled after release from dental amalgam. J Dent Res. Mercury release from dental amalgams: an in vitro study under controlled chewing and brushing in an artificial mouth. An in vitro and in vivo study of the release of mercury vapor from different types of amalgam alloys. Inter-individual variations of human mercury exposure biomarkers: a cross-sectional assessment. Environ Health. Comparison of hair, nails and urine for biological monitoring of low level inorganic mercury exposure in dental workers.
Effect of amalgam fillings on the mercury concentration in human amniotic fluid. Arch Gynecol Obstet. Maternal amalgam dental fillings as the source of mercury exposure in developing fetus and newborn. J Expo Sci Environ Epidemiol. Mercury exposure from dental filling placement during pregnancy and low birth weight risk. Am J Epidemiol. Maternal dental history, child's birth outcome and early cognitive development. Paediatr Perinat Epidemiol.
Neuropsychological and renal effects of dental amalgam in children: a randomized clinical trial. Dental amalgam restorations and children's neuropsychological function: the New England Children's Amalgam Trial.
Environ Health Perspect. A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Amalgam exposure and neurological function.
Renal effects of dental amalgam in children: the New England children's amalgam trial. Neurobehavioral effects of dental amalgam in children: a randomized clinical trial.
Neurological outcomes in children with and without amalgam-related mercury exposure: seven years of longitudinal observations in a randomized trial.
The contribution of dental amalgam to urinary mercury excretion in children. Environ Res. Childhood urine mercury excretion: dental amalgam and fish consumption as exposure factors. Health effects of dental amalgam exposure: a retrospective cohort study.
Int J Epidemiol. Adverse health effects related to mercury exposure from dental amalgam fillings: toxicological or psychological causes? Psychol Med. Aminzadeh KK, Etminan M. Dental amalgam and multiple sclerosis: a systematic review and meta-analysis. J Public Health Dent. Blood and urine mercury levels in adult amalgam patients of a randomized controlled trial: interaction of Hg species in erythrocytes.
Resolution of lichen planus following removal of amalgam restorations in patients with proven allergy to mercury salts: a pilot study. Br Dent J. Local adverse effects of amalgam restorations. Metal allergens of growing significance: epidemiology, immunotoxicology, strategies for testing and prevention.
Inflamm Allergy Drug Targets. Mercury sensitisation: review, relevance and a clinical report. Mercury vapour levels in dental practices and body mercury levels of dentists and controls. A year follow-up of residual effects on New Zealand School Dental Nurses, from occupational mercury exposure. Hum Exp Toxicol. Mercury exposure in dental practice. Oper Dent. Dental mercury hygiene recommendations. Fuks AB. The use of amalgam in pediatric dentistry. Pediatr Dent.
J Mater Sci Mater Med. Christensen GJ.
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