Evaluation of gutta-percha points decontamination through different disinfection methods

Humberto Ramah Menezes de Matos, Francisco Jardel Anfrisio Alves, Igor Eleutério Pinheiro, Claudio Maniglia-Ferreira, Fabio De Almeida-Gomes, Márcia Maria de Negreiros Pinto Rocha.

Susceptibility to bacterial growth in gutta-percha (GP) cones and their decontamination by four different chemical substances were assessed. Six GP cones were selected from a clinical environment and taken to Brain Heart Infusion (BHI) growth medium with the aid of sterile tweezers to assess bacterial growth. Other twelve cones were divided into four groups of three cones each: Group 1 with 2.5% sodium hypochlorite; Group 2 with 70% alcohol; Group 3 with 2% chlorhexidine gel; and Group 4 with 0.12% chlorhexidine. Each cone was submerged in its respective substance for 1 minute, dried with sterile gauze and inserted into BHI culture, so as to allow assessment of the presence or absence of contamination. Results showed that gutta-percha cones had no contamination, regardless of being subjected or not to decontamination. Thus, it is concluded that there is no need for decontamination of gutta-percha cones, as long as the aseptic chain of endodontic treatment is respected.

Keywords: Decontamination. Root canal filling. Root canal irrigants.

How to cite: Matos HRM, Alves FJA, Pinheiro IE, Maniglia-Ferreira C, Almeida-Gomes F, Rocha MMNP. Evaluation of gutta-percha points decontamination through different disinfection methods. Dental Press Endod. 2017 Jan-Apr;7(1):26-31. DOI: http://dx.doi.org/10.14436/2358-2545.7.1.026-031.oar

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