dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:21:53Z | |
dc.date.accessioned | 2022-10-05T18:01:54Z | |
dc.date.available | 2014-05-27T11:21:53Z | |
dc.date.available | 2022-10-05T18:01:54Z | |
dc.date.created | 2014-05-27T11:21:53Z | |
dc.date.issued | 2006-07-01 | |
dc.identifier | Journal of Prosthodontics, v. 15, n. 4, p. 235-242, 2006. | |
dc.identifier | 1059-941X | |
dc.identifier | 1532-849X | |
dc.identifier | http://hdl.handle.net/11449/68938 | |
dc.identifier | 10.1111/j.1532-849X.2006.00112.x | |
dc.identifier | 2-s2.0-33745576539 | |
dc.identifier | 8000248781842587 | |
dc.identifier | 3003130522427820 | |
dc.identifier | 5737127334248549 | |
dc.identifier | 8867670539105403 | |
dc.identifier | 0000-0002-7375-4714 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3918445 | |
dc.description.abstract | Purpose: Potential effects on hardness and roughness of a necessary and effective disinfecting regimen (1% sodium hypocholorite and 4% chlorhexidine) were investigated for two hard chairside reline resins versus a heat-polymerizing denture base acrylic resin. Materials and Methods: Two standard hard chairside reliners (Kooliner and Duraliner II), one heat-treated chairside reliner (Duraliner II +10 minutes in water at 55°C), and one standard denture base material (Lucitone 550) were exposed to two disinfecting solutions (1% sodium hypochlorite; 4% chlorhexidine gluconate), and tested for two surface properties [Vickers hardness number (VHN, kg/mm2); Roughness (Ra, μm)] for different times and conditions (1 hour after production, after 48 hours at 37 ± 2°C in water, after two disinfection cycles, after 7 days in disinfection solutions, after 7 days in water only). For each experimental condition, eight specimens were made from each material. Data were analyzed by analysis of variance followed by Tukey's test, and Student's t-test (p= 0.05). Results: For Kooliner (from 6.2 ± 0.3 to 6.5 ± 0.5 VHN) and Lucitone 550 (from 16.5 ± 0.4 to 18.4 ± 1.7 VHN), no significant changes in hardness were observed either after the disinfection or after 7 days of immersion, regardless of the disinfectant solution used. For Duraliner II (from 4.0 ± 0.1 to 4.2 ± 0.1 VHN), with and without heat treatment, a small but significant increase in hardness was observed for the specimens immersed in the disinfectant solutions for 7 days (from 4.3 ± 0.2 to 4.8 ± 0.5 VHN). All materials showed no significant change in roughness (Kooliner: from 0.13 ± 0.05 to 0.48 ± 0.24 μm; Duraliner II, with and without heat treatment: from 0.15 ± 0.04 to 0.29 ± 0.07 μm; Lucitone 550: from 0.44 ± 0.19 to 0.49 ± 0.15 μm) after disinfection and after storage in water for 7 days. Conclusions: The disinfectant solutions, 1% sodium hypochlorite and 4% chlorhexidine gluconate, caused no apparent damage on hardness and roughness of the materials evaluated. Copyright © 2006 by The American College of Prosthodontists. | |
dc.language | eng | |
dc.relation | Journal of Prosthodontics | |
dc.relation | 1.745 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Denture base acrylic resins | |
dc.subject | Disinfection | |
dc.subject | Hard chairside reline resins | |
dc.subject | Hardness | |
dc.subject | Removable prostheses | |
dc.subject | Roughness | |
dc.subject | acrylic acid resin | |
dc.subject | chlorhexidine | |
dc.subject | chlorhexidine gluconate | |
dc.subject | disinfectant agent | |
dc.subject | drug derivative | |
dc.subject | hypochlorite sodium | |
dc.subject | chemistry | |
dc.subject | denture | |
dc.subject | drug effect | |
dc.subject | hardness | |
dc.subject | surface property | |
dc.subject | time | |
dc.subject | Acrylic Resins | |
dc.subject | Chlorhexidine | |
dc.subject | Denture Rebasing | |
dc.subject | Disinfectants | |
dc.subject | Sodium Hypochlorite | |
dc.subject | Surface Properties | |
dc.subject | Time Factors | |
dc.title | Effect of disinfectants on the hardness and roughness of reline acrylic resins | |
dc.type | Artigo | |