Submitted on: 23 October 2017.
Revised on: 03 February 2018.
Accepted on: 20 March 2018.
___________________Clinical Advances in Periodontics
http://reply.papertrans.cn/1/56/5546/5546-12.png
http://reply.papertrans.cn/1/56/5546/5546-13.png
http://reply.papertrans.cn/1/56/5546/5546-14.png
http://reply.papertrans.cn/1/56/5546/5546-15.png
Submitted on: 25 October 2001.
Revised on: 09 January 2002.
Accepted on: 21 February 2002.
___________________Clinical Advances in Periodontics
http://reply.papertrans.cn/1/56/5546/5546-17.png
http://reply.papertrans.cn/1/56/5546/5546-18.png
http://reply.papertrans.cn/1/56/5546/5546-19.png
http://reply.papertrans.cn/1/56/5546/5546-20.png