EFFECT OF THE MOUTHWASH CONTAINING CHLORINE DIOXIDE AND CHLORHEXIDINE ON HYDROGEN SULFIDE GAS IN HALITOSIS TREATMENT

Tóm tắt

Objectives: To evaluate the effectiveness of mouthwash that contains chlorhexidine and chlorine dioxide in neutralizing hydrogen sulfide gas. Methods: Hydrogen sulfide was prepared from sodium sulfide and sulfuric acid, and the amount of gas was calculated by the standard curve method. Evaluate the interaction between hydrogen sulfide gas (H₂S) and chlorine dioxide (ClO₂) and chlorhexidine (CHX) by letting the H₂S gas through the flask containing ClO₂ 0.05%, 0.1%, and the mixture of ClO₂ 0.05% + CHX 0.01%, ClO₂ 0.1% + CHX 0.01%, and performing the UV-vis absorption spectra change of dye solutions. The results were compared to the one when H₂S gas passed through water. Results: When the volume of H₂S was 0.262 µmol, over 90% of H₂S reacted with the mouthwash containing ClO₂. As the ClO₂ concentration increases, the amount of responding H₂S also increases. The CHX + ClO₂ mixture did not affect the capacity of H₂S neutralization. Conclusion: Chlorine dioxide was a potential agent to reduce the oral unpleasant breath.