@incollection{, 25AA1EB4283F0C644D4306AE851F9169 , author={{Dr. TusharPruthi} and {I.T.S Dental College, Muradnagar}}, journal={{Global Journal of Medical Research}}, journal={{GJMR}}2249-46180975-588810.34257/GJMR, address={Cambridge, United States}, publisher={Global Journals Organisation}1911316 } @incollection{b0, , title={{Evidence based medicine: what it is and what it isn't}} , author={{ D LSackett } and { W MRosenberg } and { J AGray } and { R BHaynes } and { WSRichardson }} , journal={{BMJ}} 312 7023 , year={1996} } @incollection{b1, , title={{Evidence-based Dentistry: Part IV. Research Design and Levels of Evidence}} , author={{ SusanESutherland }} , journal={{J Can Dent Assoc}} 67 , year={2001} } @incollection{b2, , title={{}} , author={{ WilliamVGiannobile } and { BrianABurt } and { RobertJGenco }} , journal={{Clinical Research in Oral Health}} } @book{b3, , title={{}} , author={{ IanCstat } and { Anne-MarieNeedleman } and { Glenn }} , address={Helen Worthington} } @incollection{b4, , title={{Evidence based dentistry: Why & How?}} , journal={{Narendra Padiyar, Shobhit Agarwal, Piyush Tandon.J. Int Oral Health}} , year={2011} }