Cahyani, A., Yulita, I. and Nurilawaty, V. 2026. Effect of Toothbrushing Demonstration Method on Students Knowledge of Gingival Recession. Journal Center of Excellent : Health Assistive Technology . 4, 1 (Mar. 2026), 70–74. DOI:https://doi.org/10.36082/jchat.v4i1.3082.