Effect of root canal filling techniques on the bond strength of epoxy resin-based sealers

Autor: Flares Baratto-Filho, Luciana Martins Domingues de Macedo, Bruno Marques da Silva, Angélica Moreira Souza, Yara Teresinha Corrêa Silva-Sousa, Walter Raucci-Neto, Fuad Jacob Abi Rached-Junior
Jazyk: angličtina
Rok vydání: 2016
Předmět:
Zdroj: Brazilian Oral Research v.30 n.1 2016
Brazilian Oral Research
Sociedade Brasileira de Pesquisa Odontológica (SBPqO)
instacron:SBPQO
Brazilian Oral Research, Vol 30, Iss 1 (2016)
Brazilian Oral Research, Volume: 30, Issue: 1, Article number: e24, Published: 23 FEB 2016
Popis: The aim of this study was to evaluate the effects of different root canal filling techniques on the bond strength of epoxy resin-based sealers. Sixty single-rooted canines were prepared using ProTaper (F5) and divided into the following groups based on the root filling technique: Lateral Compaction (LC), Single Cone (SC), and Tagger Hybrid Technique (THT). The following subgroups (n = 10) were also created based on sealer material used: AH Plus and Sealer 26. Two-millimeter-thick slices were cut from all the root thirds and subjected to push-out test. Data (MPa) was analyzed using ANOVA and Tukey’s test (α = 0.05). The push-out values were significantly affected by the sealer, filling technique, and root third (p < 0.05). AH Plus (1.37 ± 1.04) exhibited higher values than Sealer 26 (0.92 ± 0.51), while LC (1.80 ± 0.98) showed greater bond strength than THT (1.16 ± 0.50) and SC (0.92 ± 0.25). The cervical (1.45 ± 1.14) third exhibited higher bond strength, followed by the middle (1.20 ± 0.72) and apical (0.78 ± 0.33) thirds. AH Plus/LC (2.26 ± 1.15) exhibited the highest bond strength values, followed by AH Plus/THT (1.32 ± 0.61), Sealer 26/LC (1.34 ± 0.42), and Sealer 26/THT (1.00 ± 0.27). The lowest values were obtained with AH Plus/SC and Sealer 26/SC. Thus, it can be concluded that the filling technique affects the bond strength of sealers. LC was associated with higher bond strength between the material and intra-radicular dentine than THT and SC techniques.
Databáze: OpenAIRE