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At least 37 records · Page 2Linked to original sources
PubMed1988

The effects of mixing capsule geometry on the early compressive strength of dental amalgam.

Three dental amalgams were mixed in a number of different mixing capsules. Compressive strength specimens were prepared using a clinically relevant technique and tested at 1 h and 7 days. The results showed that the early compressive strength of an alloy was influenced by the mixing capsule, and suggested that internal capsule geometry may be an important contributory factor in capsule performance. With one exception, there was a marked difference between the compressive strengths produced under the present method and those reported by manufacturers under test conditions laid down in standards specifications.

Capsules↗
PubMed1997

The future of dental amalgam: a review of the literature. Part 6: Possible harmful effects of mercury from dental amalgam.

This is the sixth article in a series of seven on the future of dental amalgam. It considers the possible toxic and allergic effects which could occur as a result of exposure to mercury from dental amalgam. The main toxic effects covered are neurotoxicity, kidney dysfunction, reduced immunocompetence, effects on the oral and intestinal bacterial flora, fetal and birth effects and effects on general health. The relevant studies in all these areas are described and extensively discussed. In addition, the possible development of hypersensitivity to mercury from amalgam is described and the production of delayed hypersensitivity contact reactions on the skin and mucous membrane, including lichenoid lesions, are considered.

Abnormalities, Drug-Induced↗
PubMed1977

Effect of packing pressure on the abrasion resistance of dental amalgams.

Three dental amalgams were investigated to determine if their abrasion resistance was significantly affected by different packing pressures. Abrasive wear tests were performed on a machine designed to test materials under conditions similar to masticatory function. The results show that the abrasion resistance of the amalgams is unaffected by the packing pressure.

Dental Amalgam↗
PubMed2001

[The "dental amalgam syndrome" - an environmental somatization Syndrome? A comparison between chronic carbon monoxide intoxication and illness related to dental amalgam].

In 1940, during World War II, restrictions in import of petroleum products to Sweden necessitated the use of producer gas in motor traffic. In the following years, the incidence of acute carbon monoxide intoxications raised steeply. However, many patients with minor but longstanding exposition to producer gas exhibited a neurastenic syndrome (fatigue, headaches and vertigo) thought to be specific. In Stockholm, an epidemic of this syndrome can afterwards be traced to the personal conviction of an internist who also had an important influence on various authorities, leading to a forceful campaign to the public about the dangers of using producer gas. After some years, the frequency and even the existence of a chronic carbon monoxide intoxication was called in question and at the end of the war that diagnosis lost its actuality. In Sweden, oral galvanism attributed to dental amalgam was discussed in mass media in the 1970s, not least by evidence given by some well-known personalities. In the 1980s, the frequency of illness attributed to dental amalgam increased to an important epidemic. The question of the dangers of mercury released from amalgam fillings is still an important issue of debate among dentists and physicians, although the majority remains sceptical. Also medical authorities have found little evidence of the importance of dental amalgam toxicity. A patients organisation, Tandvårdsskadeförbundet, seems to have played a significant part in the acceptance of the syndrome among laymen. Thus, various psychosocial factors seem to have played a role in both syndromes which could thus be conceived as environmental somatization syndromes.

Dental Amalgam↗
PubMed1994

[Amalgam. XIII. Criticism on dental amalgam: right or wrong?].

Some brief remarks, partly based on Dutch legislation, are made on the dentists' attitude towards the use of dental amalgam. The patient is entitled to ask for dental restorative materials other than amalgam. On the other hand, the dentist is entitled to refuse to apply materials that are, according to the prevailing professional standards, inappropriate in a given situation.

Attitude of Health Personnel↗
PubMed1998

Dental amalgam.

Explore the source record for details and available documents.

Dental Amalgam↗
PubMed1992

Documented clinical side-effects to dental amalgam.

Since all dental restorative materials are foreign substances, their potential for producing adverse health effects is determined by their relative toxicity and bioavailability, as well as by host susceptibility. Adverse health effects to dental restoratives may be local in the oral cavity or systemic, depending on the ability of released components to enter the body and, if so, on their rate of absorption. The medical scientific community is now in general agreement that patients with dental amalgam fillings are chronically exposed to mercury, that the average daily absorption of mercury from dental amalgam is from 3 to 17 micrograms per day, and that the amalgam mercury absorption averages 1.25-6.5 times the average mercury absorption from dietary sources (World Health Organization, 1991). The health significance of this chronic mercury exposure is now being investigated by several medical research groups.

Dental Amalgam↗