. 2016 Mar-Apr;19(2):157–160. doi: 10.4103/0972-0707.178697
Copyright: © 2016 Journal of Conservative Dentistry
This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.