. 2016 Nov-Dec;6(6):549–553. doi: 10.4103/2231-0762.195519
Copyright: © Journal of International Society of Preventive and Community 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.
Figure 2.
The questionnaire used in the study