TY - BOOK AU - Bhambhu, Chetna TI - Comparative evaluation of the efficacy of microneedling approach with a combination of Vitamin-C and Diode laser alone in the management of Gingival hyperpigmentation: A split mouth study U1 - 617.632 PY - 2025/// CY - Gurugram, Haryana PB - SGT University KW - Periodontology ER -