The importance of final rinse after disinfection of gutta-percha and Resilon cones

Objectives The aim of this study was to evaluate the morphologic alterations on the surface of gutta-percha and Resilon cones exposed to disinfectant solutions. Study design Fifty-six gutta-percha and Resilon cones were used. Seven groups were analyzed: G1: control; G2, G3, and G4: 5.25% NaOCl, 2% C...

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Published in:Oral surgery, oral medicine, oral pathology, oral radiology and endodontics oral medicine, oral pathology, oral radiology and endodontics, 2011-06, Vol.111 (6), p.e21-e24
Main Authors: Prado, Maíra, BDS, MSc, Gusman, Heloisa, BDS, MSc, PhD, Gomes, Brenda P.F.A., BDS, MSc, PhD, Simão, Renata A., MSc, PhD
Format: Article
Language:English
Subjects:
Chlorhexidine - chemistry
Citric Acid - chemistry
Dentistry
Disinfection - methods
Doxycycline - chemistry
Gutta-Percha - chemistry
Humans
Polysorbates - chemistry
Root Canal Filling Materials - chemistry
Root Canal Irrigants - chemistry
Sodium Hypochlorite - chemistry
Surface Properties - drug effects
Surgery
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Summary:Objectives The aim of this study was to evaluate the morphologic alterations on the surface of gutta-percha and Resilon cones exposed to disinfectant solutions. Study design Fifty-six gutta-percha and Resilon cones were used. Seven groups were analyzed: G1: control; G2, G3, and G4: 5.25% NaOCl, 2% CHX, and MTAD, respectively, without final rinse; G5, G6, and G7: the same solutions with final rinse. Then the samples were analyzed by means of scanning electron microscopy and energy dispersive spectroscopy. Results Regarding the use of NaOCl without rinse, there was chloride crystal formation in all samples. When the cones were rinsed, the crystals were removed. When 2% chlorhexidine was used, no change was observed. MTAD without rinse showed the presence of a precipitate in gutta-percha cones. When the cones were rinsed, it was eliminated. Conclusions The final rinse is essential, especially when NaOCl and MTAD are used in the cones' disinfection process.
ISSN:1079-2104
1528-395X
DOI:10.1016/j.tripleo.2011.01.014