At 92 Dental our aim is to carry out treatments that are not only aesthetic, but are backed by the latest scientific evidence.In the 1800s, amalgam became the dental restorative material of choice due to its low cost, ease of application, strength, and durability. There are however deserved concerns about their aesthetics, environmental pollution and potential effects on general health. In particular, concerns about mercury toxicity have made its use increasingly controversial. A planned phasing out of the use of mercury in Sweden, Norway and Denmark led to a ban on mercury dental amalgam being used in 2008, substituting it with tooth coloured composite materials. The Swedish amalgam ban is on the grounds of both environmental and health issues, according to the Swedish authorities. A worldwide ban draws ever closer yet there are still dentists in the UK who routinely place them.
From an aesthetic perspective silver amalgam does not only look very unattractive but it also tends to stain the surrounding tooth structure which results in an overall greyness to the teeth in people with many silver amalgam fillings.
Silver amalgam does not bond to tooth structure, so the only way dentist can get the material to stay in place is to change the shape of tooth cavities to a dovetail shape. What this effectively does is undermine the tooth structure. This is one of the reasons why so many teeth that have silver amalgam fillings crack after a few years and end up needing crowns and/or root canal treatments or extraction.
White resin bonded fillings are now very reliable if properly carried out. Because dentists can bond these materials to tooth structure the cavity size is kept to a minimum, especially if the practitioner works under magnification, leading to a small, very aesthetic yet durable restoration.