Endodontics

Removing root canal obturation materials a comparison of rotary file systems and re-treatment agents

Jamie Ring, Peter E. Murray, Kenneth N. Mamerow, Ivan Moldauer, Franklin Garcia-Godoy

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Background. The authors conducted a study to compare the effectiveness and working time of two rotary instrumentation file systems with two solvents for the removal of gutta-percha (GP) (ProTaper Universal, Dentsply Tulsa Dental, Tulsa, Okla.) or resin-based composite (RBC) (RealSeal 1 Bonded Obturator, SybronEndo, Orange, Calif.) endodontic obturation materials. Methods. The authors instrumented 88 human extracted teeth and obturated the root canals of 80 of the teeth with either GP with AH Plus root canal sealer (Dentsply Maillefer, Tulsa, Okla.) or RBC with adhesive according to the manufacturers' instructions. They re-treated each tooth by using one of two rotary instrumentation file systems. They assessed each file system by using chloroform or orange solvent re-treatment agents. The authors measured the time needed to remove the obturation material from each tooth. They processed the teeth for scanning electron microscopy, and two blinded reviewers categorized the micrographs according to several criteria. Results. The authors observed more RBC remnants on the root canal surfaces compared with GP remnants after re-treatment. The re-treatment solvents and file systems were equally effective in removing the obturation materials. Conclusion. The study results show that the quickest root canal retreatment can be accomplished by using EndoSequence rotary files (Brasseler, Savannah, Ga.) and orange solvent to remove RBC obturation material. Clinical Implications. Re-treatment with EndoSequence rotary files was quicker than re-treatment with ProTaper Universal re-treatment files (Dentsply Tulsa Dental). However, in this study, the file systems were similarly effective in removing GP and RBC. Orange solvent was as effective as chloroform in removing obturation materials, but its use is less timeconsuming.

Original languageEnglish (US)
Pages (from-to)680-688
Number of pages9
JournalJournal of the American Dental Association
Volume140
Issue number6
StatePublished - Jan 1 2009

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Root Canal Obturation
Endodontics
Composite Resins
Gutta-Percha
Tooth
Dental Pulp Cavity
Chloroform
Therapeutics
Tooth Root
Retreatment
Adhesives
Electron Scanning Microscopy

All Science Journal Classification (ASJC) codes

  • Dentistry(all)

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Endodontics : Removing root canal obturation materials a comparison of rotary file systems and re-treatment agents. / Ring, Jamie; Murray, Peter E.; Mamerow, Kenneth N.; Moldauer, Ivan; Garcia-Godoy, Franklin.

In: Journal of the American Dental Association, Vol. 140, No. 6, 01.01.2009, p. 680-688.

Research output: Contribution to journalArticle

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