§ Mr. CummingsTo ask the Secretary of State for Health what research has been carried out on the possible toxic effect of mercury amalgam fillings currently used on dental patients in the National Health Service.
§ Mr. FreemanIn 1986, the Committee on Toxicity examined the available evidence on the risks and benefits of using dental amalgam. It found that there was some evidence that mercury is released from dental amalgam during the period following insertion and on removal of the restorations. However, it also found that long-term clinical evidence would seem to suggest the view that substantial amounts of mercury are not released from amalgam fillings. The committee stated that in its opinion the use of dental amalgam is free from risk of systematic toxicity and only a very few cases of hypersensitivity occur. In its view further research in this area would not merit priority.