TY  - JOUR
AU  - Stojičić, Sonja
AU  - Živković, Slavoljub
AU  - Qian, Wei
AU  - Zhang, Hui
AU  - Haapasalo, Markus
PY  - 2010
UR  - https://smile.stomf.bg.ac.rs/handle/123456789/1586
AB  - Aim: Sodium hypochlorite is the most commonly used endodontic irrigant because of its antimicrobial and tissue-dissolving activity. The aim of this study was to evaluate and compare the effects of concentration, temperature, and agitation on the tissue-dissolving ability of sodium hypochlorite. In addition, a hypochlorite product with added surface active agent was compared with conventional hypochlorite solutions. Methods: Three sodium hypochlorite solutions from two different manufacturers in concentrations of 1%, 2%, 4%, and 5.8% were tested at room temperature, 37 degrees C, and 45 degrees C with and without agitation by ultrasonic and sonic energy and pipetting. Distilled and sterilized tap water was used as controls. Pieces of bovine muscle tissue (68 +/- 3 mg) were placed in 10 mL of each solution for five minutes. In selected samples, agitation was performed for one, two, or four 15-second periods per each minute. The tissue specimens were weighed before and after treatment, and the percentage of weight loss was calculated. The contact angle on dentin of the three solutions at concentrations of 1% and 5.8% was measured. Results: Weight loss (dissolution) of the tissue increased almost linearly with the concentration of sodium hypochlorite. Higher temperatures and agitation considerably enhanced the efficacy of sodium hypochlorite. The effect of agitation on tissue dissolution was greater than that of temperature; continuous agitation resulted in the fastest tissue dissolution. Hypochlorite with added surface active agent had the lowest contact angle on dentin and was most effective in tissue dissolution in all experimental situations. Conclusions: Optimizing the concentration, temperature, flow, and surface tension can improve the tissue-dissolving effectiveness of hypochlorite even 50-fold. (J Endod 2010;36:1558-1562)
PB  - Elsevier Science Inc, New York
T2  - Journal of Endodontics
T1  - Tissue Dissolution by Sodium Hypochlorite: Effect of Concentration, Temperature, Agitation, and Surfactant
VL  - 36
IS  - 9
SP  - 1558
EP  - 1562
DO  - 10.1016/j.joen.2010.06.021
ER  - 

@article{
author = "Stojičić, Sonja and Živković, Slavoljub and Qian, Wei and Zhang, Hui and Haapasalo, Markus",
year = "2010",
abstract = "Aim: Sodium hypochlorite is the most commonly used endodontic irrigant because of its antimicrobial and tissue-dissolving activity. The aim of this study was to evaluate and compare the effects of concentration, temperature, and agitation on the tissue-dissolving ability of sodium hypochlorite. In addition, a hypochlorite product with added surface active agent was compared with conventional hypochlorite solutions. Methods: Three sodium hypochlorite solutions from two different manufacturers in concentrations of 1%, 2%, 4%, and 5.8% were tested at room temperature, 37 degrees C, and 45 degrees C with and without agitation by ultrasonic and sonic energy and pipetting. Distilled and sterilized tap water was used as controls. Pieces of bovine muscle tissue (68 +/- 3 mg) were placed in 10 mL of each solution for five minutes. In selected samples, agitation was performed for one, two, or four 15-second periods per each minute. The tissue specimens were weighed before and after treatment, and the percentage of weight loss was calculated. The contact angle on dentin of the three solutions at concentrations of 1% and 5.8% was measured. Results: Weight loss (dissolution) of the tissue increased almost linearly with the concentration of sodium hypochlorite. Higher temperatures and agitation considerably enhanced the efficacy of sodium hypochlorite. The effect of agitation on tissue dissolution was greater than that of temperature; continuous agitation resulted in the fastest tissue dissolution. Hypochlorite with added surface active agent had the lowest contact angle on dentin and was most effective in tissue dissolution in all experimental situations. Conclusions: Optimizing the concentration, temperature, flow, and surface tension can improve the tissue-dissolving effectiveness of hypochlorite even 50-fold. (J Endod 2010;36:1558-1562)",
publisher = "Elsevier Science Inc, New York",
journal = "Journal of Endodontics",
title = "Tissue Dissolution by Sodium Hypochlorite: Effect of Concentration, Temperature, Agitation, and Surfactant",
volume = "36",
number = "9",
pages = "1558-1562",
doi = "10.1016/j.joen.2010.06.021"
}

Stojičić, S., Živković, S., Qian, W., Zhang, H.,& Haapasalo, M.. (2010). Tissue Dissolution by Sodium Hypochlorite: Effect of Concentration, Temperature, Agitation, and Surfactant. in Journal of Endodontics
Elsevier Science Inc, New York., 36(9), 1558-1562.
https://doi.org/10.1016/j.joen.2010.06.021

Stojičić S, Živković S, Qian W, Zhang H, Haapasalo M. Tissue Dissolution by Sodium Hypochlorite: Effect of Concentration, Temperature, Agitation, and Surfactant. in Journal of Endodontics. 2010;36(9):1558-1562.
doi:10.1016/j.joen.2010.06.021 .

Stojičić, Sonja, Živković, Slavoljub, Qian, Wei, Zhang, Hui, Haapasalo, Markus, "Tissue Dissolution by Sodium Hypochlorite: Effect of Concentration, Temperature, Agitation, and Surfactant" in Journal of Endodontics, 36, no. 9 (2010):1558-1562,
https://doi.org/10.1016/j.joen.2010.06.021 . .