Solvent effect of sodium hypochlorite solutions commercialized in Pelotas (Brazil) on bovine dental pulp

Milena Goveia Mathies Hasse, Juliana Freitas Gonçalves, Julio Cesar Emboava Spano, Luiz Fernando Machado Silveira, Josué Martos, Eduardo Luiz Barbin

Objective: The aim of this study is to evaluate the effect of sodium hypochlorite solvent solutions on bovine pulp tis- sue by analyzing products commercialized in Pelotas/RS, Brazil. Methods: The following substances were tested: Dakin’s solution, Milton’s solution, Labarraque’s solution and double-strength chlorinated soda (5% sodium hypo- chlorite). Prescriptions were given out by compounding pharmacies and solutions were bought in dental supply stores. Four hypochlorite-based bleaches (Qboa, Clorofi- na and Brilhante), three bought at ordinary grocery stores and one solution prepared in a compounding pharmacy, were also evaluated. To test tissue dissolution, a peristaltic pump with 15 ml sodium hypochlorite was used. Bovine pulp fragments, previously sectioned into 10 mm slices from their central portion, were inserted into the pump. Pulp dissolution data were tested for normality by means of Anderson-Darling test which directed towards para- metric and nonparametric tests. Results: 5% sodium hy- pochlorite proved to have the greatest pulp tissue dissolv- ing ability. Dakin’s solution proved the lowest while 2.5% and 2.0 to 2.5% products had intermediate bovine pulp dissolving ability. The ability to dissolve bovine pulp tissue was not observed in all samples tested.

Keywords: Dental pulp. Sodium hypochlorite. Dissolution.

How to cite: Hasse MGM, Gonçalves JF, Spano JCE, Silveira LFM, Martos J, Barbin EL. Solvent effect of sodium hypochlorite solutions commercial- ized in Pelotas (Brazil) on bovine dental pulp. Dental Press Endod. 2014 May- Aug;4(2):45-51. DOI: http://dx.doi.org/10.14436/2178-3713.4.2.045-051.oar

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