Black Friday: lifetime access is on a special offer in the app, until November 30. Black Friday: special offer on lifetime access, until November 30. Download
치과학은 치아와 구강의 건강을 연구하는 학문입니다.chigwa hageun chiawa gugang-ui geongang-eul yeonguhaneun hakmunimnida.Odontology is the study of the health of teeth and the oral cavity.