00295nam a22001217a 4500003000400000082001800004100001900022245004300041260004400084300000700128650001900135653001900154SGT  a617.632bC21M  aMehta, Deeksha  aComparative evaluation of hard and....  aGurugram, HaryanabSGT Universityc2021  a90  aPeriodontology  aPeriodontology