Some disadvantages of using dental amalgam include: 1) Destruction of healthy tooth tissue; 2) Lack of esthetic qualities; 3) Replacement as a result of “ditching” caused by long-term corrosion at tooth-restoration interface; 4) Existence of galvanic response potential and local allergic potential; 5) Possible mercury toxicity, and; 6) Marginal breakdown.
Dental amalgam is said to be durable, flexible to suit a broad range of clinical situations, economical and is easily moldable in case of repair. It also lasts for a long period of time and is proven to prevent bacterial leakage since the corrosion products close the tooth-restoration interface. Also, having dental amalgams is convenient since it only needs one appointment replacement.
Dental amalgam is said to be suitable for people of all ages. It is used when there is serious damage on the tooth structure. It is a less expensive treatment applied in the stress-bearing areas of the teeth and in small to moderate sized cavities in the posterior teeth. It also used as a foundation for cast-metal, metal-ceramic and ceramic restorations.
Dental amalgam is said to be one of the oldest materials used in oral health care. It is created by combining equal parts of elemental liquid mercury (43 to 54 percent) and an alloy powder (57 to 46 percent) which is composed of silver, tin, copper, and, at times, even small amounts of zinc, palladium or indium.
The verdict is out. There is little to no scientific evidence that dental amalgam causes mercury poisoning, even over time. Here’s a part of the conclusion of a study conducted on the matter.
The current data are insufficient to support an association between mercury release from dental amalgam and the various complaints that have been attributed to this restoration material. These complaints are broad and nonspecific compared to the well-defined set of effects that have been documented for occupational and accidental Hg0 exposures. Individuals with dental amalgam-attributed complaints had neither elevated HgU nor increased prevalence of hypersensitivity to dental amalgam or mercury when compared with controls. The findings of these studies suggested that individuals with complaints self-attributed to dental amalgam should be screened for underlying dental, physical, and psychiatric conditions.
Little do many know that the silver fillings they have in their teeth may contain significant amounts of mercury which has been proven to result in health risks. That is why the EPA has released information on how dentists should store and dispose of removed fillings as much of them, though put in a long time ago still have active mercury within them making them unsafe for dumping into the waste disposal system.
Considered to be toxic, it has been identified as a source of mercury in the body after some fillings break leading to ingestion. Most dentists today prefer to remove the mercury filled fillings replacing them with composite materials that are inert and safer for the human body without the risk of leeching into the bloodstream.
Amalgam has been used for a long time and used to be favored by dentists the world over. Today however, they are subject to extensive research that has arisen due to a very toxic component, mercury. The only known liquid metal on earth, mercury is highly toxic and has been associated with Alzheimer’s disease and many other psychological disorders. Though called “silver fillings”, it is mostly mercury which has been associated with many diseases. This being the case, many dentists now prefer composite ceramics and plastics in its place and recommend older fillings to be removed and replaced by them.
There is also danger when they are removed for mercury releases vapors and dust as it is ground away from the tooth it used to grace. There are specialist dentists who have extensive experience with their removal and disposal for as said mercury is highly toxic.
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Amalgam is made of mercury and a combination of different metals like silver, tin or copper. It is a strong and steady material used in dental restorations for repairing tooth lost to decay and caries. Amalgam restorations are also known as silver fillings which have been in use for a century. It is the primary material use for filling materials. However, its use has lessened in recent decades because of the presence of other choices for restoration materials like resin and composites. Because of its lasting strength, it can withstand considerable chewing stress and is used to restructure decayed molars which has the biggest chewing load in the mouth.
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歯を元の状態に戻す手頃な値段の材料は歯合成物です。 それは銀色の詰め物で安全で長持ちします。 それはすず、銀、銅、水銀やその他の化合物で出来ています。 稀に水銀に敏感な一部の患者を除けば、一貫した安全成績を持っています。 この一つの物質だけ毒性を持つのですが、歯合成物ではそうではありません。 銅、すずと銀で出来ている合金で水銀が気化する量はごく微量です。
公衆衛生サービスは健康を考慮する上で歯合成物を使わない理由は無いと発表しています。 合成物の詰め物は安全で効果的だと発表しています。 人は合成物の詰め物から発生する気化した水銀より、水や空気、食料で水銀に触れる方が多いのです。 歯合成物は全ての詰め物の中で最も手頃で最も長持ちし、更なる研究で明確な科学的結果とそれがもたらす可能性のある効果を今も求め続けています。
Image Source: adamdental.net
An affordable material that is used to restore teeth is dental amalgam. It is a silver filling that is safe and durable. It is made up of metal mixtures like tin, silver, copper, mercury and other chemical compound. It has fairly consistent safety record cases except for rare ones where patients are sensitive to mercury. This single element is poisonous metal but not in dental amalgam. It’s very little mercury vapour is made in an alloy composed copper, tin and silver.
Public Health Service says that there are no health reasons not to use dental amalgam. They say that amalgam fillings are safe and effective. Besides this, people are more exposed to mercury from water, air and food than the mercury vapor in amalgam fillings. Dental amalgam is still the most affordable and most durable of all dental fillings and further research is still being done to arrive at definite scientific answers of the possible effects of it.