| Autor: |
Jáder Camilo PINTO, Fernanda Ferrari Esteves TORRES, Airton Oliveira SANTOS-JUNIOR, Karina Ines Medina Carita TAVARES, Juliane Maria GUERREIRO-TANOMARU, Mário TANOMARU-FILHO |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Brazilian Oral Research, Vol 38 (2024) |
| Druh dokumentu: |
article |
| ISSN: |
1807-3107 |
| DOI: |
10.1590/1807-3107bor-2024.vol38.0022 |
| Popis: |
Abstract Both root canal sealer-based and supplementary protocols may influence removal of filling material during endodontic retreatment. Mesial root canals of extracted mandibular molars were prepared using HyFlex EDM 25/.08, and filled with a calcium silicate sealer (Bio-C Sealer), or an epoxy resin (AH Plus), using the single cone technique (n = 12). Retreatment was performed using ProDesign Logic (PDL) RT and PDL 35/.05. The specimens were randomly divided into two experimental groups (n = 12), and the sealers were distributed similarly. A supplementary protocol was performed with PDL 50/.01 or XP-endo Finisher. Root canal transportation and volume, in addition to the remaining filling material percentage were evaluated using high-resolution (5 µm voxel size) micro-CT. Statistical analysis was performed using t-tests (α = 0.05). Root canals filled with AH Plus presented high residual filling material (p < 0.05). Both protocols decreased residual volume of filling material in the apical third (p < 0.05). PDL 50/.01 increased the apical root canal volume (p < 0.05). No difference was observed between the systems regarding canal transportation (p > 0.05). In conclusion, AH Plus is more difficult to remove from the apical third than Bio-C Sealer. PDL 50/.01 and XP-endo Finisher enabled greater removal of filling materials in the apical third, in the retreatment of curved root canals, without promoting apical transport. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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