RESEARCH ARTICLEDOI: 10.2174/1874210601105010190
All articles published in Open Dentistry Journal are now available worldwide under an open-access license. No specific permission is required to reuse all or part of the Open Dentistry Journal article, including figures and tables. Any part of an article published under a Creative Commons CC BY license may be copied without permission as long as the original material is clearly referenced.
https://opendentistryjournal.com/open-access-policy.php.
Volume: 5 (2011): 190.
[Electronic Publication Date: December 19, 2011]Marika Takahashi , Zhiyong Chen , Kaoru Watanabe , Hiroaki Kobayashi , Toshiaki Nakajima , Akinori Kimura and Yuichi Izumi