Submitted on: 17 November 2000.
Revised on: 11 January 2001.
Accepted on: 10 March 2001.
___________________International Journal of Dental Hygiene
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Submitted on: 28 April 2007.
Revised on: 07 June 2007.
Accepted on: 20 June 2007.
___________________International Journal of Dental Hygiene
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Submitted on: 08 May 2000.
Revised on: 14 July 2000.
Accepted on: 02 August 2000.
___________________International Journal of Dental Hygiene
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