![]() Each of them is coated with a plethora of microorganisms, which made up the proverbial biofilm ( Aas et al., 2005 Yamashita & Takeshita, 2017). The oral cavity is the entry portal of the gastrointestinal tract and comprised of many surfaces ( Aas et al., 2005 Sampaio-Maia et al., 2016). Meanwhile, elastomeric impressions are strongly recommended to be disinfected with 0.5% sodium hypochlorite or 2% glutaraldehyde using immersion disinfection method for 10 min, however, polyether impression should be disinfected with 2% glutaraldehyde. ConclusionsĪlginate impressions are strongly recommended to be disinfected with 0.5% sodium hypochlorite using spray disinfection method for 10 min. ![]() However, the wettability of addition silicone impressions and the dimensional stability of condensation silicone impressions were adversely affected after chemical disinfection, while other surface properties of these two dental impressions were out of significant influence. With regard to surface properties, chemical disinfection within 30 min could not alter the dimensional stability, detail reproduction and wettability of alginate and polyether impressions. A 10-minute disinfection with 0.5–1% sodium hypochlorite or 2% glutaraldehyde was effective to inactivate oral flora and common oral pathogenic bacteria. Of these studies, 13 studies evaluated disinfection efficacy of two disinfectants, and 39 studies evaluated their effects on the surface properties of dental impressions. Main resultsĪ total of 50 studies were included through electronic database searches. MethodsĪ systematic literature search was performed in four databases until May 1st, 2022 to select the studies which evaluated disinfection efficacy of disinfectants or surface properties of dental impressions after chemical disinfection. To systematically evaluate the disinfection efficacy of the two most frequently used disinfectants, sodium hypochlorite and glutaraldehyde, and their effects on the surface properties of four different dental impression materials. Disinfection efficacy of sodium hypochlorite and glutaraldehyde and their effects on the dimensional stability and surface properties of dental impressions: a systematic review. Cite this article Qiu Y, Xu J, Xu Y, Shi Z, Wang Y, Zhang L, Fu B. For attribution, the original author(s), title, publication source (PeerJ) and either DOI or URL of the article must be cited. Licence This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Dental Materials and Devices for Zhejiang Provincial Engineering Research Center, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China DOI 10.7717/peerj.14868 Published Accepted Received Academic Editor Pedro Silva Subject Areas Dentistry Keywords Dental impression materials, Disinfection, Efficacy, Surface properties Copyright © 2023 Qiu et al.
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