School children residing in area with higher than normal water fluoride level demonstrated more impaired development of intelligence.

PMID: 

J Indian Soc Pedod Prev Dent. 2015 ;33(4):307-11. PMID: 26381633

Abstract Title: 

A cross-sectional study to assess the intelligence quotient (IQ) of school going children aged 10-12 years in villages of Mysore district, India with different fluoride levels.

Abstract: 

INTRODUCTION: Besides dental and skeletal fluorosis, excessive fluoride intake can also affect the central nervous system without first causing the physical deformities associated with skeletal fluorosis. With the existence of widespread endemic fluorosis in India, the possible adverse effect of elevated fluoride in drinking water on the Intelligence Quotient (IQ) level of children is a potentially serious public health problem.AIMS AND OBJECTIVES: This study assessed the Intelligence Quotient (IQ) of school going children aged 10-12 years in villages of Mysore district with different fluoride levels.MATERIALS AND METHODS: In this cross-sectional study, 405 school children aged 10-12 years were selected from three villages in Mysore district with normal fluoride (1.20 mg F/l), low fluoride (0.40 mg F/l) and high fluoride (2.20 mg F/l) in their water supplies. A pre designed questionnaire was used to collect the required data for the survey which included socio demographic details, oral hygiene practices, diet history, body mass index and dental fluorosis. Intelligence Quotient was assessed using Raven's colored Progressive Matrices Test.RESULTS: In bivariate analysis, significant relationships were found between water fluoride levels and Intelligence Quotient of school children (P

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