Apical sealing of root canal fillings performed with five different endodontic sealers: analysis by fluid filtration

Ricardo Affonso Bernardes,Ivaldo Gomes de Moraes,Clóvis Monteiro Bramante,Marco Antonio Húngaro Duarte,Bruno Carvalho de Vasconcelos

doi:10.1590/s1678-77572011005000005

Ricardo Affonso Bernardes, Ivaldo Gomes de Moraes + Show 3 more

Open Access

https://doi.org/10.1590/s1678-77572011005000005

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Abstract

ObjectivesTo evaluate the sealing ability of five root canal sealers, including two experimental cements (MBP and MTA-Obtura) using the fluid filtration method. Material and MethodsTeeth were divided into 5 study groups: G1-AH Plus; G2-Acroseal; G3-Sealapex; G4-MBP; G5-MTA-Obtura; and two controls. Chemical-mechanical preparation was performed with ProFile rotary nickel-titanium instruments 1 mm short of the apical foramen. The sealing ability was evaluated by fluid filtration at 15, 30, and 60 days. ResultsThe statistical analysis showed significant difference between the materials at different periods (p<0.05). AH Plus and MBP had similar leakage values at 15 and 60 days, alternating with significant reduction at 30 days, while the other materials showed progressive increase in leakage values. Acroseal and Sealapex presented the best results at 15 days and the worst at 60 days. ConclusionsAll sealers evaluated presented fluid leakage, with AH Plus and MBP showing the best results at the end of the experimental period. Acroseal, Sealapex, and MTA-Obtura presented increase in leakage values at longer observation periods.

Highlights

Endodontic obturation comprises complete WKUHHGLPHQVLRQDO ¿OOLQJ RI WKH URRW FDQDO V\VWHP with materials that exhibit satisfactory physical and biological properties4,22,GHDOO\ WKH ¿OOLQJ material should adequately seal the root canal DQG VLPXOWDQHRXVO\ SUHYHQW ÀXLG SHUFRODWLRQ LQWR the root canal space, stimulate the resolution of periapical pathologies, and encourage deposition of cementum to achieve biological seal20,22,25.Filling materials should meet several requirements, such as biocompatibility, antibacterial properties, dimensional stability, radiopacity, ease RI PDQLSXODWLRQ LQVROXELOLW\ LQ RUDO ÀXLGV DQG adaptability to the root canal walls2, as well as ability to produce a hermetical seal
D JUHDW QXPEHU RI QHZ HQGRGRQWLF ¿OOLQJ PDWHULDOV are developed7,11 with hopes of revolutionizing the endodontic obturation technique23, but none of these materials have presented better results than the association of gutta-percha with conventional sealers12,28
Resin-based endodontic cements have received considerable attention from endodontists due to their good physical-chemical10,11 and biological properties17. Other sealers, namely those based on calcium hydroxide or calcium oxide7,15 or mineral trioxide aggregate (MTA)28, present yet better biological properties

Summary

Introduction

Endodontic obturation comprises complete WKUHHGLPHQVLRQDO ¿OOLQJ RI WKH URRW FDQDO V\VWHP with materials that exhibit satisfactory physical and biological properties4,22 ,GHDOO\ WKH ¿OOLQJ material should adequately seal the root canal DQG VLPXOWDQHRXVO\ SUHYHQW ÀXLG SHUFRODWLRQ LQWR the root canal space, stimulate the resolution of periapical pathologies, and encourage deposition of cementum to achieve biological seal20,22,25.Filling materials should meet several requirements, such as biocompatibility, antibacterial properties, dimensional stability, radiopacity, ease RI PDQLSXODWLRQ LQVROXELOLW\ LQ RUDO ÀXLGV DQG adaptability to the root canal walls, as well as ability to produce a hermetical seal. Endodontic obturation comprises complete WKUHHGLPHQVLRQDO ¿OOLQJ RI WKH URRW FDQDO V\VWHP with materials that exhibit satisfactory physical and biological properties4,22 ,GHDOO\ WKH ¿OOLQJ material should adequately seal the root canal DQG VLPXOWDQHRXVO\ SUHYHQW ÀXLG SHUFRODWLRQ LQWR the root canal space, stimulate the resolution of periapical pathologies, and encourage deposition of cementum to achieve biological seal. D JUHDW QXPEHU RI QHZ HQGRGRQWLF ¿OOLQJ PDWHULDOV are developed with hopes of revolutionizing the endodontic obturation technique, but none of these materials have presented better results than the association of gutta-percha with conventional sealers. Resin-based endodontic cements have received considerable attention from endodontists due to their good physical-chemical and biological properties. Other sealers, namely those based on calcium hydroxide or calcium oxide or mineral trioxide aggregate (MTA), present yet better biological properties.

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