**Author details**

Gayathri Krishnamoorthy, Aparna I. Narayana\* and Dhanasekar Balakrishnan Manipal College of Dental Sciences, Manipal Academy of Higher Education, Manipal, India

\*Address all correspondence to: aparna.narayan@manipal.edu

© 2021 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
