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Abstrak :
ABSTRAK
Latar Belakang: siler polidimetilsiloksan merupakan siler baru yang berpotensi menutup saluran akar lebih baik. Tujuan: membandingkan tingkat kerapatan pengisian di sepertiga apeks antara teknik kon tunggal (KT) dan downpackbackfill (DB) menggunakan siler polidimetilsiloksan. Metode: empat puluh gigi premolar bawah dibagi menjadi dua kelompok KT dan DB. Setelah pengisian saluran akar, sampel diinkubasi, dilapisi cat kuku, direndam dalam tinta India, lalu dibuat transparan dengan metode Robertson. Kebocoran di sepertiga apeks dievaluasi dengan mikroskop stereo. Hasil: skor kebocoran terendah (0-0,5 mm) dimiliki oleh kelompok KT dan skor kebocoran tertinggi (>1 mm) dimiliki oleh kelompok DB. Kesimpulan: teknik kon tunggal memberikan tingkat kerapatan yang lebih baik dibandingkan downpack-backfill, walaupun secara statistik perbedaan antar keduanya tidak signifikan. ABSTRACT
Background: polydimethylsiloxane sealer is a brand new sealer that potentially has a better sealing ability to the root canal. Aim: to compare the apical sealing ability in one third apex between single cone (SC) and downpack-backfill (DB) technique using polydimethylsiloxane sealer. Methods: fourty extracted human manibular premolars devided into two group, SC and DB. After obturated with polydimethylsiloxane sealer, samples were stored in incubator, coated with nail varnish, immersed in India ink, and then specimens were cleared using Robertson?s technique. The apical dye penetration was evaluated using a stereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SC group and the highest score(>1 mm) in DB group. Summary: single cone technique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques. ;Background: polydimethylsiloxane sealer is a brand new sealer that potentially has a better sealing ability to the root canal. Aim: to compare the apical sealing ability in one third apex between single cone (SC) and downpack-backfill (DB) technique using polydimethylsiloxane sealer. Methods: fourty extracted human manibular premolars devided into two group, SC and DB. After obturated with polydimethylsiloxane sealer, samples were stored in incubator, coated with nail varnish, immersed in India ink, and then specimens were cleared using Robertson?s technique. The apical dye penetration was evaluated using a stereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SC group and the highest score(>1 mm) in DB group. Summary: single cone technique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques. ;Background: polydimethylsiloxane sealer is a brand new sealer that potentially has a better sealing ability to the root canal. Aim: to compare the apical sealing ability in one third apex between single cone (SC) and downpack-backfill (DB) technique using polydimethylsiloxane sealer. Methods: fourty extracted human manibular premolars devided into two group, SC and DB. After obturated with polydimethylsiloxane sealer, samples were stored in incubator, coated with nail varnish, immersed in India ink, and then specimens were cleared using Robertson?s technique. The apical dye penetration was evaluated using a stereomicroscope. Result: the lowest leakage score (0-0,5 mm) was found in SC group and the highest score(>1 mm) in DB group. Summary: single cone technique exibited better sealing ability rather than downpack-backfill technique, although no statistical significant difference between this two techniques.

Abstrak :
Kontaminasi bakteri pada tumpatan sementara dapat menyebabkan kegagalan perawatan. Tujuan penelitian ini adalah untuk mengetahui perbandingan sealing ability tumpatan sementara berbasis zinc oxide eugenol dan non-eugenol. Dua puluh gigi premolar yang telah diekstraksi ditumpat 4 bahan tumpatan sementara zinc oxide yang berbeda lalu direndam selama 5 hari dalam methylene blue 1% dan diuji penetrasi pewarna dengan skoring menggunakan alat stereomikroskop Nikon SMZ800, Japan (perbesaran 63x). Hasil penelitian menunjukkan sealing ability pada tumpatan sementara zinc oxide non-eugenol lebih baik dibandingkan zinc oxide eugenol. ......Bacteria contamination on temporary filling can cause treatment failure. The aim of this study was to evaluate the sealing ability of zinc oxide eugenol and noneugenol based temporary filling by dye penetration test using scoring. Twenty extracted maxillary premolar were filled with 4 different temporary filling, then immersed in 1% methylene blue solution for 5 days and evaluated under stereomicroscope Nikon SMZ800, Japan (63x). Results showed that sealing ability of zinc oxide non-eugenol based temporary filling was better than temporary filling based of zinc oxide eugenol.