title: The crystallization of sodium hypochlorite on gutta-percha cones after the rapid-sterilization technique: an SEM study.
abstract: The purpose of this study was to identify the presence, crystallization, and subsequent removal of sodium hypochlorite crystals on gutta-percha cones after rapid sterilization. Seventy-two, fresh, standardized, gutta-percha cones were randomly selected. Each cone was observed under the scanning electron microscope and the elemental analysis machine before and after rapid sterilization using 5.25% and 2.5% sodium hypochlorite. Gutta-percha cones were rinsed after sterilization with 96% ethyl alcohol, 70% isopropyl alcohol, and distilled water independently to determine which of these agents removed the sodium-chloride crystals. There were no crystals present on the gutta-percha cones directly from the box. All gutta-percha cones had sodium-chloride crystals present after the rapid-sterilization technique using 5.25% and 2.5% sodium hypochlorite. However, the sodium-chloride crystals were removed by 96% ethyl alcohol, 70% isopropyl alcohol, and distilled water.
authors: Nova Southeastern University, Ft Lauderdale, FL, USA.
authors: Rico D
authors: RD
authors: Short
authors: Samuel O
authors: SO
authors: Dorn
authors: Sergio
authors: S
authors: Kuttler
mesh_terms: D000438:Alcohols; D003460:Crystallization; D003666:Decontamination / Q000379:methods; D019551:Dental Disinfectants / Q000737:chemistry*; D006171:Gutta-Percha; D008855:Microscopy, Electron, Scanning; D012965:Sodium Chloride / Q000032:analysis; D012973:Sodium Hypochlorite / Q000737:chemistry*; D013242:Sterilization
chemical_list: D000438:Alcohols; D019551:Dental Disinfectants; D012965:Sodium Chloride; D006171:Gutta-Percha; D012973:Sodium Hypochlorite