Zhunio Belesaca, H., Peña Astudillo, P.X. and Palacios Vivar, .D.E. 2023. ORAL AND SINUS COMMUNICATION IN UPPER MOLAR, CASE REPORT. Killkana Salud y Bienestar. 7, 2 (May 2023), 93–102. DOI:https://doi.org/10.26871/killcanasalud.v7i2.1135.