| Autor: |
Carmona Tirintan, Fábio, Henrique Borges, Álvaro, Djalma Pécora, Jesus, Santos da Silva Neto, Manoel dos, Gehrke Barbosa, Matheus, de Araújo Estrela, Cyntia Rodrigues |
| Předmět: |
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| Zdroj: |
RSBO: Revista Sul-Brasileira de Odontologia; jul-dez2020, Vol. 17 Issue 2, p73-78, 7p |
| Abstrakt: |
Introduction and Objective: This study verified of remaining filling materials in flattened/oval-shaped root canals after use of several endodontic retreatment protocols. Material and methods: Seventy human mandibular incisors were selected. Sixty specimens received crown-apex preparation performed by ProTaper Next® system and were filled with hybrid Tagger technique with gutta-percha and AH Plus®. Ten specimens were left unprepared (Control Group). The specimens were randomly distributed in six groups, according the different retreatment protocols: G1 - Clearsonic® + ProTaper Universal Retreatment® + Reciproc®; G2 - Reciproc®; G3 - Clearsonic® + ProTaper Universal Retreatment®; G4 - Clearsonic® + Reciproc®; G5 - Oscillatory EndoEze® + Manual files; G6 - ProTaper Universal Retreatment®. Presence of root canal filling material residual were evaluated using Scanning Electron Microscopy. The relative differences of remaining filling materials between the groups and root thirds were determined by Kolmogorov-Smirnov and Levene tests followed by Tukey post hoc test. The level of significance was set at a = 5%. Results: Regarding the presence residual, G1 (Clearsonic® +ProTaper Universal Retreatment® + Reciproc®), G2 (Reciproc®), G3 (Clearsonic® + ProTaper Universal Retreatment®) and G6 (ProTaper Universal Retreatment®) protocols presented a lower amount (p<0.05). The highest values (p<0.05) of remaining filling materials were presented in the G5 (Oscillatory EndoEze® + Manual files) protocol. Intermediate values (p<0.05) were presented by G4 (Clearsonic® + Reciproc®) protocol. Conclusion: The endodontic retreatment protocols no showed effectiveness for complete removal of remaining sealing material from flattened/oval-shaped root canals. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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