Xiaogang Cheng1, Yu Tian2, Chunmiao Zhao3, Tiejun Qu2, Chi Ma4, Xiaohua Liu5, Qing Yu6. 1. State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Shaanxi, People's Republic of China; Biomedical Sciences Department, Texas A&M University Baylor College of Dentistry, Dallas, Texas. 2. State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Shaanxi, People's Republic of China. 3. State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Shaanxi, People's Republic of China; Department of Operative Dentistry and Endodontics, Baoji Stomatology, Baoji, People's Republic of China. 4. Biomedical Sciences Department, Texas A&M University Baylor College of Dentistry, Dallas, Texas. 5. Biomedical Sciences Department, Texas A&M University Baylor College of Dentistry, Dallas, Texas. Electronic address: xliu@bcd.tamhsc.edu. 6. State Key Laboratory of Military Stomatology and National Clinical Research Center for Oral Diseases and Shaanxi Key Laboratory of Oral Diseases, Department of Operative Dentistry and Endodontics, School of Stomatology, The Fourth Military Medical University, Shaanxi, People's Republic of China. Electronic address: yuqing_fmmu@hotmail.com.
Abstract
INTRODUCTION: This study evaluated the bactericidal effect of strong acid electrolyzed water (SAEW) against flow Enterococcus faecalis biofilm and its potential application as a root canal irrigant. METHODS: Flow E. faecalis biofilms were generated under a constant shear flow in a microfluidic system. For comparison, static E. faecalis biofilms were generated under a static condition on coverslip surfaces. Both the flow and static E. faecalis biofilms were treated with SAEW. Sodium hypochlorite (NaOCl, 5.25%) and normal saline (0.9%) were included as the controls. Bacterial reductions were evaluated using confocal laser scanning microscopy and the cell count method. Morphological changes of bacterial cells were observed using scanning electron microscopy. RESULTS: The confocal laser scanning microscopic and cell count results showed that SAEW had a bactericidal effect similar to that of 5.25% NaOCl against both the flow and static E. faecalis biofilms. The scanning electron microscopic results showed that smooth, consecutive, and bright bacteria surfaces became rough, shrunken, and even lysed after treated with SAEW, similar to those in the NaOCl group. CONCLUSIONS: SAEW had an effective bactericidal effect against both the flow and static E. faecalis biofilms, and it might be qualified as a root canal irrigant for effective root canal disinfection.
INTRODUCTION: This study evaluated the bactericidal effect of strong acid electrolyzed water (SAEW) against flow Enterococcus faecalis biofilm and its potential application as a root canal irrigant. METHODS: Flow E. faecalis biofilms were generated under a constant shear flow in a microfluidic system. For comparison, static E. faecalis biofilms were generated under a static condition on coverslip surfaces. Both the flow and static E. faecalis biofilms were treated with SAEW. Sodium hypochlorite (NaOCl, 5.25%) and normal saline (0.9%) were included as the controls. Bacterial reductions were evaluated using confocal laser scanning microscopy and the cell count method. Morphological changes of bacterial cells were observed using scanning electron microscopy. RESULTS: The confocal laser scanning microscopic and cell count results showed that SAEW had a bactericidal effect similar to that of 5.25% NaOCl against both the flow and static E. faecalis biofilms. The scanning electron microscopic results showed that smooth, consecutive, and bright bacteria surfaces became rough, shrunken, and even lysed after treated with SAEW, similar to those in the NaOCl group. CONCLUSIONS: SAEW had an effective bactericidal effect against both the flow and static E. faecalis biofilms, and it might be qualified as a root canal irrigant for effective root canal disinfection.
Authors: Daniela Guadalupe Lucio-Sauceda; Víctor Hugo Urrutia-Baca; Ricardo Gomez-Flores; Myriam Angélica De La Garza-Ramos; Patricia Tamez-Guerra; Alonso Orozco-Flores Journal: Biomed Res Int Date: 2019-12-18 Impact factor: 3.411
Authors: José Antonio García-Vidal; Jesús Salinas; Pilar Escolar-Reina; Francisco Cuello; Nieves Ortega; Juan de Dios Berná-Mestre; Manuel López-Nicolás; Fermín Valera-Garrido; Francesc Medina-Mirapeix Journal: Sci Rep Date: 2021-09-23 Impact factor: 4.379
Authors: Héctor Armando Jimenez-Gonzalez; María Argelia Akemi Nakagoshi-Cepeda; Sergio Eduardo Nakagoshi-Cepeda; Víctor Hugo Urrutia-Baca; Myriam Angélica De La Garza-Ramos; Juan Manuel Solis-Soto; Ricardo Gomez-Flores; Patricia Tamez-Guerra Journal: Biomed Res Int Date: 2021-11-09 Impact factor: 3.411