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Long‐term sealing ability of resin‐based root canal fillings

2010; Wiley; Volume: 43; Issue: 6 Linguagem: Inglês

10.1111/j.1365-2591.2010.01687.x

1365-2591

Juliana Nascimento Santos, Leo Tjäderhane, Caio Cézar Randi Ferraz, Alexandre Augusto Zaia, Marcelo Corrêa Alves, Mário Fernando de Góes, Marcela Rocha de Oliveira Carrilho,

Dental materials and restorations

Santos J, Tjäderhane L, Ferraz C, Zaia A, Alves M, De Goes M, Carrilho M. Long‐term sealing ability of resin‐based root canal fillings. International Endodontic Journal, 43 , 455–460, 2010. Abstract Aim To evaluate the ability of two resin‐based filling materials to provide immediate and long‐term sealing of the root canal. Methodology A total of eighty‐two human roots were instrumented and filled with AH Plus/gutta‐percha or Epiphany/Resilon. Root filled teeth were sealed coronally either with Coltosol or Clearfil SE Bond/Filtek Z250 or were left unsealed. The quality of root canal sealing was assessed by a fluid filtration method performed at immediate and 180‐day time intervals. Mean fluid filtration rates were analyzed by three‐way repeated measures anova and Tukey post hoc test. Results Specimens filled with Epiphany/Resilon exhibited higher leakage than specimens filled with AH Plus/gutta‐percha ( P < 0.05), regardless of the coronal sealing condition and period of evaluation. No difference was detected between coronal restorative materials ( P > 0.05), whilst leakage in teeth without any coronal restoration was significantly higher ( P < 0.05). After storage, a significant decrease in leakage ( P < 0.05) was observed in all experimental groups. Conclusions AH Plus/gutta‐percha provided superior root canal sealing at both immediate and 180‐day time periods. The presence of a coronal seal reduced leakage significantly. Storage of root filled specimens did not disturb the sealing ability of the tested materials.