Leakage of 4 resin-based root-canal sealers used with a single-cone technique.
OBJECTIVE
The aim of this study was to measure leakage of 4 resin-based sealers.


METHODS
Four groups of premolars (n = 60) were prepared using GT Rotary files and the crown-down technique and filled by the single-cone technique with AH26, AHPlus, EndoREZ, and an experimental MBP as sealer. Leakage was measured using the fluid filtration method after 15, 30, and 60 days and determined as microL/min(-1) x 10 psi.


RESULTS
Statistical analysis by ANOVA and Tukey HSD test indicated that root fillings with AH Plus and the MBP showed lower leakage values after 15 days (P < .05). At 30 days, AH26 presented higher leakage values when compared to other sealers (P < .05). At 60 days, MBP and AH Plus presented the lower leakage values, differing significantly from EndoREZ (P < .05).


CONCLUSIONS
It was observed that AH Plus and the experimental MBP showed lower leakage after 60 days than AH 26 and EndoREZ.
da Silva Neto
Ulisses Xavier
UX
Pontifical Catholic University of Paraná, Curitiba, Paraná, Brazil. ulix@terra.com.br
de Moraes
Ivaldo Gomes
IG
Westphalen
Vânia Portela Ditzel
VP
Menezes
Renato
R
Carneiro
Everdan
E
Fariniuk
Luiz Fernando
LF
D000704:Analysis of Variance; D001641:Bicuspid; D001729:Bismuth; D003188:Composite Resins; D003763:Dental Leakage / Q000517:prevention & control*; D004338:Drug Combinations; D004853:Epoxy Resins; D006801:Humans; D019279:Resin Cements; D012387:Root Canal Filling Materials; D012389:Root Canal Obturation / Q000379:methods*; D012834:Silver; D018709:Statistics, Nonparametric; D014025:Titanium
D003188:Composite Resins; D004338:Drug Combinations; C481259:EndoRez; D004853:Epoxy Resins; D019279:Resin Cements; D012387:Root Canal Filling Materials; C534916:epoxy resin-based root canal sealer; D012834:Silver; C028044:epoxy resin AH-26; D014025:Titanium; D001729:Bismuth