This publication includes abstracts and/or translated articles from Joumal of Clinical Periodontology， published 12 times a year in association with The European Federation of Periodontology （EFP） by Blackwell Publishing， Ltd.， The Atrium， Southern Gate， Chichester PO 19 8SQ. UK-2012 John Wiley&Sons A/S.This material is published by Liaoning Science & Technology Publishing House Ltd. with the permission of Blackwell Publishing Asia Pty Ltd. EFP and Blackwell Publishing Asia Pty Ltd disclaim any responsibility of the accuracy of the translation from the published English original and are not liable for any errors which may occur. If professional advice or other expert assistance is required， the services of a competent professional should be sought.A11 rights reserved. No part of this publication may be reproduced， stored in a retrieval system， or transmitted， in any form or by any means， electronic， mechanical， photocopying， recording or otherwise， without the prior permission of the copyright owner. This...
