Distribusi elemen gigi yang mengalami periodontitis kronis pada penderita diabetes melitus tipe-2: studi retrospektif di klinik periodonsia RSKGM FKG UI periode 2006-2016 = Distribution of teeth affected by chronic periodontitis in type 2 diabetic subjects: a retrospective study in klinik periodonsia RSKGM FKG UI periode of 2006-2016