Diana Dumitriu1, Tanase Dobre2. 1. Park Street Dental Practice, Weymouth, Dorset, United Kingdom. Electronic address: info@dentist-weymouth.co.uk. 2. Mass Transfer Department, Politechnica University, Bucharest, Romania.
Abstract
INTRODUCTION: The aim of this research was to quantify the effects of temperature on the rate of collagen dissolution in different concentrations of sodium hypochlorite solution. METHODS: A customized laboratory apparatus was used to immerse 23 samples of reticulated collagen matrices and 20 samples of non-reticulated collagen matrices in a continuously agitated solution of 1%-5% (m/v) sodium hypochlorite at 20°C-35°C. The time needed for complete dissolution of each sample was used to generate mathematical equations that described the effects of temperature and hypochlorite concentration on the dissolution of collagen. RESULTS: Both temperature and concentration of sodium hypochlorite were positively correlated with the rate of collagen dissolution. The same speed of dissolution was obtained for 5% sodium hypochlorite at 20°C, 4% solution at 20.8°C, 3% solution at 23.5°C, 2% solution at 26.9°C, and 1% solution at 36°C. CONCLUSIONS: Treatment protocols that involve sodium hypochlorite, which is the preferred root canal irrigant, should consider the important effects caused by variations in the use of different irrigant temperatures and concentrations. Further investigation is required to establish the optimal concentration and temperature of sodium hypochlorite solution for root canal irrigation.
INTRODUCTION: The aim of this research was to quantify the effects of temperature on the rate of collagen dissolution in different concentrations of sodium hypochlorite solution. METHODS: A customized laboratory apparatus was used to immerse 23 samples of reticulated collagen matrices and 20 samples of non-reticulated collagen matrices in a continuously agitated solution of 1%-5% (m/v) sodium hypochlorite at 20°C-35°C. The time needed for complete dissolution of each sample was used to generate mathematical equations that described the effects of temperature and hypochlorite concentration on the dissolution of collagen. RESULTS: Both temperature and concentration of sodium hypochlorite were positively correlated with the rate of collagen dissolution. The same speed of dissolution was obtained for 5% sodium hypochlorite at 20°C, 4% solution at 20.8°C, 3% solution at 23.5°C, 2% solution at 26.9°C, and 1% solution at 36°C. CONCLUSIONS: Treatment protocols that involve sodium hypochlorite, which is the preferred root canal irrigant, should consider the important effects caused by variations in the use of different irrigant temperatures and concentrations. Further investigation is required to establish the optimal concentration and temperature of sodium hypochlorite solution for root canal irrigation.
Authors: Rafaela Fernandes Zancan; Mohammed Hadis; David Burgess; Zhenyu Jason Zhang; Alessandro Di Maio; Phillip Tomson; Marco Antonio Hungaro Duarte; Josette Camilleri Journal: Sci Rep Date: 2021-02-25 Impact factor: 4.379
Authors: Ronald Ordinola-Zapata; Dina Mansour; Flavia Saavedra; Christopher Staley; Ruoqiong Chen; Alex S Fok Journal: Int Endod J Date: 2022-03-08 Impact factor: 5.165
Authors: Aldo Del Carpio-Perochena; Clovis Monteiro Bramante; Marco Hungaro Duarte; Flaviana Bombarda de Andrade; Marcia Zardin Graeff; Marina Marciano da Silva; Bruno Cavalini Cavenago; Samuel Lucas Fernandes Journal: J Dent Res Dent Clin Dent Prospects Date: 2015-12-30