The excavation of the book "Essentials of Oral Hygiene" written by Dr. Heijirou Oohashi and published in 1944.

Cheng, Feng-ChouFeng-ChouChengTaso, Chang-YuanChang-YuanTasoLin, Yueh-TuanYueh-TuanLinCHUN-PIN CHIANG2025-05-072025-05-072025-04https://scholars.lib.ntu.edu.tw/handle/123456789/728999enDental educationDentistDr. Heijirou OohashiOral hygiene[SDGs]SDG3The excavation of the book "Essentials of Oral Hygiene" written by Dr. Heijirou Oohashi and published in 1944.journal article10.1016/j.jds.2025.01.00840224053