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Siti Muthi’atun Naila, Wulandari P. COMPARISON OF PERIODONTAL STATUS AMONG MILD, MODERATE AND HEAVY SMOKERS IN FACULTY OF DENTISTRY, UNIVERSITAS SUMATERA UTARA: PERBANDINGAN STATUS PERIODONTAL PADA PEROKOK RINGAN, SEDANG DAN BERAT DI FAKULTAS KEDOKTERAN GIGI UNIVERSITAS SUMATERA UTARA. Dentika Dental J. [Internet]. 2017Dec.1 [cited 2025Aug.5];20(2):57-61. Available from: https://talenta.usu.ac.id/dentika/article/view/996