ANALYSIS OF ROOT CANAL MORPHOLOGY OF INCISOR TEETH USING PERIAPICAL RADIOGRAPHY BISECTING TECHNIQUE AND CHANGE HORIZONTAL ANGULATION 30º IN SUB RACE PROTO AND DEUTRO MALAY: ANALISIS MORFOLOGI SALURAN AKAR GIGI INSISIVUS MENGGUNAKAN RADIOGRAFI PERIAPIKAL TEKNIK BISEKTRIS DAN PERUBAHAN ANGULASI HORIZONTAL 30º PADA SUB RAS PROTO DAN DEUTRO – MELAYU . Dentika Dental J. [Internet]. 2018 Jul. 1 [cited 2026 Feb. 5];21(01):1-9. Available from: https://idjpcr.usu.ac.id/dentika/article/view/1107