Penetration of sodium hypochlorite into root canal dentine: effect of surfactants, gel form and passive ultrasonic irrigation
| Autor: | L. R. A. Oliveira, Renato de Toledo Leonardo, Gisele Faria, Kennia Scapin Viola, Hernán Coaguila-Llerena, J. M. Guerreiro-Tanomaru, Arturo Javier Aranda-Garcia |
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| Rok vydání: | 2018 |
| Předmět: |
Sodium Hypochlorite
Root canal 0206 medical engineering Cetrimide 02 engineering and technology In Vitro Techniques Surface-Active Agents 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine stomatognathic system Stereo microscope medicine Animals Ultrasonics Crystal violet Tooth Root Therapeutic Irrigation General Dentistry Ultrasonic irrigation Root Canal Irrigants 030206 dentistry Penetration (firestop) 020601 biomedical engineering Solutions stomatognathic diseases Dentinal Tubule medicine.anatomical_structure chemistry Sodium hypochlorite Dentin Cattle Gels Nuclear chemistry |
| Zdroj: | International Endodontic Journal. 52:385-392 |
| ISSN: | 1365-2591 0143-2885 |
| DOI: | 10.1111/iej.13015 |
| Popis: | AIM To assess the penetration of sodium hypochlorite (NaOCl) gel or NaOCl solutions with surfactants, and the effect of passive ultrasonic irrigation (PUI) on penetration into dentinal tubules. METHODOLOGY Bovine incisor root canals were instrumented, the roots sectioned and the dentine blocks obtained were stained with crystal violet. Dentine blocks (n = 10 per group) were exposed to 3% NaOCl gel or 3% NaOCl solution for 10 and 20 min. Other dentine blocks (n = 10 per group) were exposed to Chlor-Extra (6% NaOCl + surfactant), 6% NaOCl, 2.5% NaOCl with 0.2% cetrimide and 2.5% NaOCl for 10 and 20 min. The penetration depth of irrigants into dentinal tubules was measured in micrometres by viewing the bleached crystal violet under a stereomicroscope. Additionally, bovine incisor root canals, instrumented and stained with crystal violet, were distributed into two groups (n = 10) and irrigated with 2.5% NaOCl with PUI or conventional syringe irrigation (CSI). The penetration depth of irrigants into dentinal tubules was assessed 3 and 7 mm from the apex. Statistical analysis was performed by ANOVA and Tukey tests (α = 0.05). RESULTS There was significantly greater penetration of 3% NaOCl solution into dentinal tubules compared with the gel form (P 0.05) between 6% NaOCl and Chlor-Extra, and between 2.5% NaOCl and 2.5% NaOCl + cetrimide. PUI significantly increased the penetration depth of NaOCl into dentinal tubules when compared with CSI (P |
| Databáze: | OpenAIRE |
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