ABSTRAK Latar Belakang: Penggunaan gutaperca yang dipanaskan menghasilkan adaptasiyang baik dan material obturasi yang homogen. Teknik kompaksi lateral panasmenggabungkan kon gutaperca utama dan aksesoris menjadi satu massa homogenyang solid. Teknik carrier-based gutta-percha memiliki seal dan adaptasi yangbaik. Teknik downpack-backfill mengkombinasikan teknik kompaksi vertikal daninjeksi termoplastis. Tujuan: Membandingkan adaptasi tepi sepertiga apikalapeks antara teknik kompaksi lateral panas, carrier-based gutta-percha, dandownpack-backfill. Metode: Preparasi saluran akar pada 90 gigi saluran akartunggal dan dibagi menjadi tiga kelompok, yaitu kompaksi lateral panas (KLP),carrier-based gutta-percha (T), dan downpack-backfill (DB). Adaptasi tepisepertiga apikal apeks ditentukan dengan melihat penetrasi pewarna di antaramaterial obturasi dan dinding dentin pada sampel yang dipotong melintang. Hasil:Adaptasi tepi sepertiga apikal apeks DB paling baik, diikuti T dan KLP (p>0,05).Kesimpulan: Adaptasi tepi sepertiga apikal apeks teknik downpack-backfillpaling baik, namun tidak berbeda bermakna. ABSTRACT Background: The use of heated gutta-percha can provide good adaptation andhomogeneity of obturation material. Warm lateral compaction techniquecombines primary and accessory gutta-percha cones into one solid homogeneousmass. Carrier-based gutta-percha technique has a good adaptation and sealingability. Downpack-backfill technique combines warm vertical compaction andthermoplastic injection techniques. Aim: Compare the apical third marginaladaptation of warm lateral compaction, carrier-based gutta-percha, anddownpack-backfill techniques. Methods: Ninety single rooted teeth were preparedand assigned to three groups: warm lateral compaction (KLP), carrier-basedgutta-percha (T), and downpack-backfill (DB). Apical third marginal adaptationwas evaluated by observing the dye penetration between the obturation materialand the root canal walls on cross sectioned samples. Results: DB showed the bestapical third marginal adaptation, followed by T and KLP (p>0,05). Conclusion:Downpack-backfill technique has the best apical third marginal adaptation, butno significant difference was observed between the three techniques. |