A quantitative evaluation of apical leakage of four root-canal sealers

Abstract

Root fillings with RoekoSeal in combination with cold lateral condensation technique showed better sealing than those with Ketac-Endo, AH Plus and Sultan sealers after 21 days. The fluid filtration test used in this study gave quantitative results and allowed nondestructive long-term evaluation of specimens.

Methodologies for assessment of apical and coronal leakage of endodontic filling materials: a critical review

“…Leakage may, however, occur at the interfaces between the sealer and dentin, sealer and gutta-percha and in spaces within the sealer itself. Thus, the quality of the filling depends largely on the sealing capacity offered by sealers (7,8).…”

“…Leakage may, however, occur at the interfaces between the sealer and dentin, sealer and gutta-percha and in spaces within the sealer itself. Thus, the quality of the filling depends largely on the sealing capacity offered by sealers (7,8).Methodologies in vitro are used to estimate sealing quality, generally by measuring microleakage that allows the tracer agent to penetrate the filled canal. Commonly used tracers are dyes, radioisotopes, bacteria and their products, such as endotoxins.…”

Lack of correlation between obturation limits and apical leakage

“…Barthel et al 26 applied the dye leakage test after mine leakage. 9,17 The root apex was connected to a Luer type metal needle by a plastic tube. 4 The leakage allowed by the tested groups was quantified according to the movement of a small air bubble inside a 25 µL micropipette (Fisher Scientific, Philadelphia, USA).…”

“…Although thermoplastic techniques show a certain superiority in achieving gutta-percha density, compared to cold techniques, 5 neither technique can effectively prevent the leakage, which has been analyzed by several different methods. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] Considering that different filling techniques and sealers have resulted in similar apical seals, [20][21][22] it seems wise to investigate other reasons associated with greater or lesser leakage rates.…”

The comparison of apical microleakage of single-cone tapered gutta-percha canal filling technique with the other gutta-percha canal filling techniques using with four different canal sealers

“…Kök kanal dolgu materyal ve tekniklerini apikal sızdırma-zlık yönünden incelemek amacıyla kullanılan en yaygın yöntemler, boya sızıntı, bakteriyal penetrasyon, elektrokimyasal ve radyoizotop yöntemleridir. 29,30 Bununla beraber en yaygın kullanılan işaretleyiciler hassasiyetlerinden, kolay kullanımlarından ve uygunluğundan dolayı boyalardır. 31 Boya penetrasyonu yöntemi, basit, ucuz ve kolay uygulanabilir olmasından dolayı günümüze kadar en çok tercih edilen olmuştur.…”