Search results for "Apical leakage"
showing 4 items of 4 documents
Long-term sealing ability of GuttaFlow versus Ah Plus using different obturation techniques.
2010
Objective. To compare the long-term sealing ability of GuttaFlow® using different obturation techniques. Study Design. Three hundred teeth, prepared with a crown-down technique, were divided into thirty experimental groups (n=10) to evaluate the apical and coronal leakage, at 3, 30 and 120 days, of lateral compaction gutta-percha + AH Plus?, lateral compaction gutta-percha + GuttaFlow®, single cone + AH Plus?, single cone + GuttaFlow®, and GuttaFlow® only. Results. Both coronal and apical leakage, at the three times of measurement, no significant differences were found among GuttaFlow® + lateral compaction gutta-percha and GuttaFlow® + single cone groups, whereas the only GuttaFlow® reached…
Sealing ability of lateral compaction and tapered single cone gutta-percha techniques in root canals prepared with stainless steel and rotary nickel …
2011
Objectives: The aim of this study was to evaluate the sealing ability of lateral compaction and tapered single cone gutta-percha techniques in root canals prepared with stainless steel and rotary nickel titanium root canal instruments by fluid filtration method. Study design: The root canals were prepared with stainless steel (SS) and nickel titanium (NiTi) instruments. The canals prepared with SS were obturated with lateral compaction technique using .02 tapered cones and the canals prepared with NiTi instruments were obturated with lateral compaction technique using .02 tapered cones or 06 tapered single cones. The amount of leakage was evaluated by fluid filtration model. The results wer…
Estudo Comparativo da Infiltração Apical entre Dois Cimentos Endodônticos
2009
ResumoO objectivo deste estudo é comparar a capacidade de selamento apical de dois cimentos endodônticos. Foram utilizados trinta e oito dentes monorradiculares e divididos em dois grupos de 15 elementos, de acordo com o cimento utilizado (Grupo A: AH Plus e Grupo B: Tubli-Seal). Foram utilizados oito dentes nos grupos controlo positivo e negativo que não foram obturados (Grupo C). Os canais foram instrumentados pela técnica de crown-down, utilizando as limas Hero Shaper® and Hero 642® (Micro-Mega S.A., Besançon, France) e irrigados com hipoclorito de sódio a 5,25% entre cada instrumento. O smear layer foi removido utilizando 3ml de EDTA a 17% no final da instrumentação durante 3 minutos, s…
Effect of post space preparation on apical seal : influence of time interval and sealer
2007
Objective: To assess the efficacy of two sealants to preserve the apical seal after root canal preparation and cementation of posts at 24 h or 72 h after endodontic treatment. Study design: Sixty human single-root teeth were instrumented and obturated using lateral compaction technique with EndoFill® [30] or AH-Plus® [30] and were prepared in one of three ways, leaving a 3 mm gutta percha remnant in all cases: without cast post preparation, with preparation after 24 h or after 72 h. After cementing the posts, the specimens were thermal cycled at 5 and 55?C in water baths, submerged in 2% methylene blue dye for 72 h, embedded in acrylic resin and cut transversally into three 1-mm apical sect…