Study on mercury in dental calculus.

A Study of Whole Saliva and Dental Calculus in Submariners

Dental calculus is known to be related to the initiation of periodontal disease. Recent studies have indicated that salivary acid-base changes occur on patrol and that such changes may reasonably be expected to influence the formation and composition of dental calculus. A study was completed to examine these factors. Whole saliva samples were collected from eleven crewmen of a Polaris submarine...

Dental Calculus Arrest of Dental Caries

BACKGROUND An inverse relationship between dental calculus mineralization and dental caries demineralization on teeth has been noted in some studies. Dental calculus may even form superficial layers over existing dental caries and arrest their progression, but this phenomenon has been only rarely documented and infrequently considered in the field of Cariology. To further assess the occurrence ...

Dental amalgam and urinary mercury concentrations: a descriptive study

BACKGROUND Dental amalgam is a source of elemental and inorganic mercury. The safety of dental amalgam in individuals remains a controversial issue. Urinary mercury concentrations are used to assess chronic exposure to elemental mercury. At present, there are no indications of mercury-associated adverse effects at levels below 5 μg Hg/g creatinine (Cr) or 7 μg Hg/L (urine). The purpose of the p...

Mercury Poisoning From Dental Amalgam

This report is a critical evaluation of the use of dental amalgam with special consideration of the possibility of chronic mercury poisoning. The description of psychic and somatic symptoms associated with corrosion of amalgam might help people with similar symptoms to recognize the possible source of their problems. Medical practitioners need to recognize the characteristic manifestations of m...

Urinary mercury excretion in dental personnel.