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Removal of overextended gutta-percha root canal fillings in endodontic failure cases
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Abstract
A procedure is proposed for the complete removal of an overextended root canal filling
when associated with a root canal treatment failure. First, the gutta-percha is softened
with xylene and removed to a distance of 2 to 3 mm short of the apex. Second, the
remaining gutta-percha, which is preserved as solid as possible, is removed by a Hedstrom
file. The file is extended 0.5 to 1.0 mm beyond the apex, firmly engages the gutta-percha
and is slowly removed. In 17 of the 18 cases, this procedure successfully removed
the overextended gutta-percha.