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Submitted on: 10 June 2000.
Revised on: 25 July 2000.
Accepted on: 08 August 2000.
___________________Journal of Indian Association of Public Health Dentistry
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Submitted on: 26 December 2007.
Revised on: 28 March 2008.
Accepted on: 15 May 2008.
___________________Journal of Indian Association of Public Health Dentistry
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Submitted on: 19 May 2018.
Revised on: 02 September 2018.
Accepted on: 14 October 2018.
___________________Journal of Indian Association of Public Health Dentistry
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Submitted on: 12 November 2019.
Revised on: 23 December 2019.
Accepted on: 05 January 2020.
___________________Journal of Indian Association of Public Health Dentistry