Evaluation of the effect of Bioaggregate thickness on microleakage used in one-step apexifi- cation treatment

Abstract

Providing adequate apical plug forms a challenge for dentist when dealing with immature teeth with open apices that has necrotic pulp. The sealing ability of the filling used has an important role in success of the root canal treatment. The aim of this study was to evaluate the microleakage of Bioaggregate [ BioAggregate, Verio Dental Co. Ltd., Vancouver, Canada BA ] by liquid filtration technique with different application thicknesses in an apexification model. In this study, 24 lower premolar teeth extracted for orthodontic reasons were used. After sectioning from enamelcement conjunction, teeth were sectioned from apical 3-4 mm to achieve 12mm root length. To mimic the clinical situation, apical&coronal 1/3 parts of the roots were prepared with 2-6 no Gates Glitten burs. Teeth were divided into 3 groups according to thickness of BA: Group 1: 2mm, Group 2: 4mm and Group 3: 12mm total length . After teeth were stored at 37°C for 4 days for setting of the BA, the empty parts of roots were filled with gutta-percha in first 2 groups and leakage amounts were evaluated. Kruskal Wallis H test was used for statistical analysis. There was no statistical difference between Group 1 and 2 p>0.05 . Root that were filled with BA totally Group 3 showed statistically less leakage then other groups p

Keywords

• Apexification treatment, Bioaggregate, Immature permanent teeth, Liquid filtration technique

Tek seans apeksfikasyon tedavisinde kullanılan bioagregat kalınlığının mikrosızıntı üzerine etkisinin değerlendirilmesi

Abstract

Nekrotik pulpalı kök ucu kapanmamış daimi dişlerin kanal tedavisinde, yeterli apikal tıkanmanın sağlanması diş hekimliğinde zorluk yaratan klinik bir durumdur. Kullanılan kanal dolgu materyalinin sızdırmazlığı başarı için önem taşımaktadır. Bu çalışmanın amacı, tek seans apeksifikasyon modelinde, farklı kalınlıklarda uygulanan BioAgregat’ın [ BioAggregate, Verio Dental Co. Ltd., Vancouver, Kanada BA ] sızıntı oranlarının sıvı filtrasyon yöntemi kullanılarak karşılaştırılmasıdır. Çalışmamızda 24 adet ortodontik amaçla çekilmiş tek köklü alt küçük azı dişi kullanıldı. Dişler, mine-sement birleşiminden kesildikten sonra, kök boyu 12mm olacak şekilde apikal kök ucundan 3-4mm kesildi. Klinik durumu taklit etmek için köklerin apikal ve kuronal 1/3’lük kısımları 2-6 numaralı Gates glidden frezlerle genişletildi. Dişler kanala yerleştirilen BA kalınlığına göre rastgele 3 gruba ayrıldı: Grup 1:2mm, Grup 2:4mm, ve Grup 3:12mm tam kanal boyu . BA’nın sertleşme reaksiyonunun gerçekleşmesi amacıyla dişler 37°C’de 4 gün bekletildikten sonra, ilk 2 grupta kanalların boş kısımları gütaperka ile dolduruldu ve tüm gruplarda sıvı transport yöntemi ile sızıntı miktarları ölçüldü. Verilerin analizinde Kruskal Wallis H testi kullanıldı. Grup 1 ve 2 arasında istatistiksel olarak anlamlı fark tespit edilmezken p>0,05 , tamamı BA ile doldurulmuş kanalların Grup 3 diğer gruplara göre sızdırmazlığı istatistiksel olarak anlamlı düzeyde daha az bulundu p

Keywords

• Apeksifikasyon tedavisi, Bioagregat, Genç daimi diş, Sıvı transport yöntemi

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