Retreatability of a bioceramic root canal sealing material.

Abstract:

INTRODUCTION:The efficacy of retreatment techniques for BC Sealer (BCS) (Brasseler USA, Savannah, GA) removal has not yet been assessed. The purpose of this study was to evaluate the efficacy of solvent and rotary instrumentation in the removal of BCS when used in combination with gutta-percha (GP) as compared with AH Plus sealer (Dentsply, Tulsa, OK). METHODS:The mesiobuccal canals of 40 mandibular molars were instrumented and obturated with either GP/AH Plus with warm vertical compaction or GP/BCS using a single cone. The groups were subdivided into samples with the master GP cone placed to the working length (WL) or intentionally 2 mm short of the WL. Canals were then retreated using heat, chloroform, rotary instruments, and hand files. The ability to regain the WL and patency were evaluated as well as the time required to remove obturation material. Representative samples were also analyzed via scanning electron microscopy. RESULTS:The WL was not regained in 70% of samples with BCS/master cone short of the WL. Patency was not re-established in 20% of samples with BCS/master cone to the WL or in 70% of samples with BCS/master cone short of the WL. CONCLUSIONS:Conventional retreatment techniques are not able to fully remove BCS.

journal_name

J Endod

journal_title

Journal of endodontics

authors

Hess D,Solomon E,Spears R,He J

doi

10.1016/j.joen.2011.08.016

subject

Has Abstract

pub_date

2011-11-01 00:00:00

pages

1547-9

issue

11

eissn

0099-2399

issn

1878-3554

pii

S0099-2399(11)00979-4

journal_volume

37

pub_type

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