00415nam a22001097a 4500003000400000082001800004100002000022245019200042260004500234300000700279650001900286SGT  a617.632bC25B  aBhambhu, Chetna  aComparative evaluation of the efficacy of microneedling approach with a combination of Vitamin-C and Diode laser alone in the management of Gingival hyperpigmentationbA split mouth study  aGurugram, HaryanabSGT University c2025  a84  aPeriodontology