R, Lisna Unita; NISAK, Rahayu. DIFFERENCE OF pH AND CALCIUM LEVEL OF SALIVARYIN CARIES AND CARIES FREE STUDENTS OF FAKULTAS KEDOKTERAN GIGI UNIVERSITAS SUMATERA UTARA: PERBEDAAN VOLUME, pH DAN KADAR KALSIUM SALIVA KARIES DAN BEBAS KARIES PADA MAHASISWA FAKULTAS KEDOKTERAN GIGI UNIVERSITAS SUMATERA UTARA. Dentika: Dental Journal, [S. l.], v. 19, n. 2, p. 128–132, 2016. DOI: 10.32734/dentika.v19i2.415. Disponível em: https://talenta.usu.ac.id/dentika/article/view/415. Acesso em: 12 jan. 2026.