A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial.

A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Research Abstract Details 

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A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Abstract Text:

David C Bellinger,Felicia Trachtenberg,David Daniel,Annie Zhang,Mary A Tavares,Sonja McKinlay,David C Bellinger,Felicia Trachtenberg,David Daniel,Annie Zhang,Mary A Tavares,Sonja McKinlay,

BACKGROUND: The New England Children's Amalgam Trial (NECAT) was a five-year randomized trial of 534 6- to 10-year-old children that compared the neuropsychological outcomes of those whose caries were restored using dental amalgam with the outcomes of those those whose caries were restored using mercury-free resin-based composite. The primary intention-to-treat analyses did not reveal significant differences between the treatment groups on the primary or secondary outcomes of the administered psychological tests: Full-Scale IQ score on the Wechsler Intelligence Scale for Children-Third Edition, General Memory Index of the Wide Range Assessment of Memory and Learning, and Visual-Motor Composite of the Wide Range Assessment of Visual Motor Abilities. METHODS: To determine whether treatment group assignment, a dichotomous measure of exposure, was sufficiently sensitive to detect associations between mercury exposure and these outcomes, the authors conducted analyses to evaluate the associations between the primary and secondary outcomes and two continuously distributed indexes of potential exposure, surface-years of amalgam and urinary mercury excretion. RESULTS: Neither index of mercury exposure was significantly associated with any of the three outcomes. CONCLUSIONS: The authors found no evidence that exposure to mercury from dental amalgam was associated with any adverse neuropsychological effects over the five-year period after placement of amalgam restorations. CLINICAL IMPLICATIONS: Analyses of the outcomes of the NECAT study indicate that use of dental amalgam was not associated with an increase in children's risk of experiencing neuropsychological dysfunction.

A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Publishing Authors By Initials

DC Bellinger,F Trachtenberg,D Daniel,A Zhang,MA Tavares,S McKinlay,DC Bellinger,F Trachtenberg,D Daniel,A Zhang,MA Tavares,S McKinlay,

For similar psychological phenomena and processes: psychomotor performance research abstracts see: psychological phenomena and processes: psychomotor performance research

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A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Journal of the American Dental Association (1939)

VOLUME: 138

Page Numbers: 1210-6

Journal Abbreviation:

ISSN: 0002-8177

DAY: 3

MONTH: Sep

YEAR: 2007

A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 7503060

A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Keywords Mesh Terms:

KEYWORDS: Psychomotor Performance

MESH TERMS: drug effects

Chemical & Substance for Abstract: A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial. Information

Substance Name: Dental Amalgam

Registry Number: 8049-85-2

Grant and Affiliation Information for A dose-effect analysis of children's exposure to dental amalgam and neuropsychological function: the New England Children's Amalgam Trial.

AFFILIATION: Children's Hospital, Boston, MA, USA.

Country: United States

AGENCY: United States NIDCR

GRANT: U01 DE 11886

ACRONYM: DE

MEDLINETA: J Am Dent Assoc

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