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PubMed2006

Leakage of bovine serum albumin in root canals obturated with super-EBA and IRM.

The aim of this study was to determine the leakage of SuperEBA and intermediate restorative material (IRM) in root canal samples, with or without orthograde filling, by evaluating bovine serum albumin (BSA) microleakage using spectrophotometry. Thirty-five single-rooted teeth were divided into five groups, instrumented, and had apices resected. Root-end cavities in groups I and II were filled with SuperEBA and IRM. The samples from the groups III, IV, and V were filled with gutta-percha and sealer. In groups IV and V, root-end cavities were filled with SuperEBA and IRM. After 60 days, the greatest microleakage of BSA was observed in group II (4.1 +/- 0.0011 ng), followed by group III (3.4 +/- 0.0064 ng), and then group I (2.6 +/- 0.0019 ng). Samples from groups IV and V leaked the least (0.7 +/- 0.0014 ng). Significantly less leakage (p < 0.05) occurred in samples filled with orthograde and root-end fillings than did in samples filled only with an orthograde approach and the samples with IRM root-end fillings.

Animals↗
PubMedDate not supplied

[The periodontal reaction to root canal obturation with different filling materials].

Periodontal reactions and the apexification process in the teeth with open apex of the root in response to different filling materials and the relationship between these processes and the quality of filling of the root channels were studied in experiments. Zinc-eugenol paste, intradont, itradont-D and intradont with lysozyme were used to fill the root channels in puppies aged 6-7 months. Filling of the root channel up to the apex was found to be the optimal variant, preventing the development of necrosis and promoting periodontal tissue regeneration.

Animals↗