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    An谩lisis de la obturaci贸n de conductos laterales y ramificaciones apicales utilizando dos t茅cnicas de obturaci贸n: condensaci贸n lateral versus t茅cnica h铆brida de Tagger

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    El prop贸sito de este estudio es comparar la capacidad de dos t茅cnicas de obturaci贸n, condensaci贸n lateral y t茅cnica h铆brida de Tagger, para obturar satisfactoriamente los conductos laterales y ramificaciones apicales, que son constituyentes anat贸micos del complejo sistema de conductos radiculares, considerando que la falta de sellado de los mismos pudiese conducir a patolog铆a perirradicular y consecuentemente a una evoluci贸n no favorable de la terapia endod贸ntica, particularmente en casos de necrosis pulpar. Sesenta premolares inferiores extra铆dos fueron seleccionados y divididos en dos grupos de treinta cada uno. La instrumentaci贸n de cada uno de los dientes se realiz贸 mediante la t茅cnica crown down, y se sigui贸 un protocolo de irrigaci贸n con NaOCl 5%, EDTA 17% y agua destilada. Se obturaron los dientes seg煤n cada t茅cnica de obturaci贸n en cada grupo y, se emple贸 topseal como cemento sellador en ambos casos; los dientes fueron diafanizados y examinados en estereomicroscopio. Se evalu贸 la penetraci贸n de gutapercha y cemento en los conductos laterales y ramificaciones apicales mediante un sistema de 5 puntos. El an谩lisis estad铆stico se hizo con la prueba U de Mann Whitney, no encontr谩ndose diferencia significativa entre los grados de obturaci贸n en ambos grupos de estudio (p>0.05)The aim of this study was to compare the ability of two obturation techniques, Lateral Condensation and Tagger麓s Hybrid Technique to successfully seal lateral canals and apical ramifications, which are anatomic constituents of the complex root canal system, taking into consideration that a lack of seal of them could result in further periradicular disease and endodontic treatment failure, specially in cases with a necrotic dental pulp. Sixty extracted human mandibular premolars were selected and divided in two groups of 30 teeth. Root canal preparation was performed with a crown down technique, irrigation protocol was NaOCl 5,25%, EDTA 17% and distilled water. Canal sealing was performed according to one of the two experimental techniques, 15 teeth per group, topseal was used as canal sealer in both cases. Teeth were then cleared and analyzed in a stereomicroscope; the depth of penetration of gutta-percha and cement into lateral canals and apical ramifications was scored using a 5 point scale. For statistical analysis data were submitted to Mann-Whitney U test, with no statistical significant difference between the two study groups (p>0.05)Especialista en EndodonciaCuenc
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