Submitted on: 28 January 2003.
Revised on: 23 April 2003.
Accepted on: 16 June 2003.
___________________Journal of Clinical Pediatric Dentistry
Submitted on: 03 July 2007.
Revised on: 24 October 2007.
Accepted on: 21 November 2007.
___________________Journal of Clinical Pediatric Dentistry
http://reply.papertrans.cn/2/160/15918/15918-23.png
Submitted on: 14 November 2008.
Revised on: 19 December 2008.
Accepted on: 17 January 2009.
___________________Journal of Clinical Pediatric Dentistry
Submitted on: 25 February 2004.
Revised on: 11 April 2004.
Accepted on: 05 May 2004.
___________________Journal of Clinical Pediatric Dentistry
Submitted on: 31 December 2010.
Revised on: 16 March 2011.
Accepted on: 01 April 2011.
___________________Journal of Clinical Pediatric Dentistry
Submitted on: 27 December 2000.
Revised on: 20 January 2001.
Accepted on: 28 February 2001.
___________________Journal of Clinical Pediatric Dentistry
http://reply.papertrans.cn/2/160/15918/15918-28.png
http://reply.papertrans.cn/2/160/15918/15918-29.png
http://reply.papertrans.cn/2/160/15918/15918-30.png