Status periodontal pada pasien periodontitis dengan terapi temporary periodontal splint: studi retrospektif di Rumah Sakit Khusus Gigi dan Mulut Fakultas Kedokteran Gigi Universitas Indonesia periode 2018-2020 = Periodontal status of periodontitis patients with temporary periodontal splint therapy: retrospective study at Faculty of Oral and Dental Hospital Dentistry, University of Indonesia period 2018-2020