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Universidade Federal Do Rio Grande Do Sul Faculdade De Odontologia Programa De Pós-graduação Em Odontologia
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ines, Liliane Massoni, Sachet |
| Copyright Year | 2003 |
| Abstract | The present research study evaluated the longitudinal apical infiltration in root canals chemically prepared with or without 17% EDTA and filled with 2 types of epoxi resin-based cement (AH Plus and Sealer 26); it also evaluated cross-sectional infiltration in different thirds of the root. Eighty human upper and lower canines were chosen, in which chemical and mechanical preparations were performed, and the samples were divided randomly into 4 groups of 20 teeth. In group 1 the teeth were irrigated with 1% NaClO and filled with gutta-percha cones and Sealer 26 cement, in group 2 the teeth were irrigated with 1% NaClO, followed by irrigation with 17% EDTA; in group 3 the teeth were irrigated with 1% NaClO and filled with gutta-percha cones and AH Plus cement, in group 4 the teeth were irrigated with 1% NaClO, followed by irrigation with 17% EDTA and filled with gutta-percha cones and AH Plus cement. The samples were fixed on a wax slide, placed in a shallow container with India Ink for 14 days. Then the samples underwent a clearing that allowed a 3-dimensional visualization of the dental structure. Next, a stereoscopic microscope was used to measure apical longitudinal infiltration with the help of a millimetered mesh. As to cross-sectional infiltration, after clearing and measuring apical longitudinal infiltration, the samples were cut with a razor blade, into three slices, at the three third (cervical, middle and apical). Each slice of tooth was placed in the stereoscopic microscope and the millimetered mesh was placed on top of this slide. The total area of the sample, the area infiltrated by the stain was observed in the cross-sectional slices, and the percentage of infiltration was established in each third of the root. The results were analyzed using the ANOVA and Qui-Quadrado. It was concluded that there were no statistically significant differences between the cements and/ or between the groups studied as to apical and cross-sectional longitudinal infiltration. Both cements presented good longitudinal apical and transversal sealing, and the EDTA did not influence these results. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://lume.ufrgs.br/bitstream/handle/10183/4365/000410984.pdf;jsessionid=6896AF6412273EFAD1A79E920239585F?sequence=1 |
| Alternate Webpage(s) | https://lume.ufrgs.br/bitstream/handle/10183/4362/000500602.pdf;jsessionid=7DBDBD11748971F3B57A1E09C821D21D?sequence=1 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
