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Gupta S, Patra A, Ojha R, Das A, Baby A. Sonal Appliance an innovative space maintainer in management of early loss of first permanent molar: A Rare Case Report. Int J Med Res Rev [Internet]. 2023Sep.12 [cited 2024Oct.9];11(4):96-100. Available from: https://ijmrr.medresearch.in/index.php/ijmrr/article/view/1436