EdenteV2, Istex, Corpus, bibRecord, 004551

Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant Candida albicans: in vitro study

Identifieur interne : 004551 ( Istex/Corpus ); précédent : 004550; suivant : 004552

Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant Candida albicans: in vitro study

Auteurs : Ewerton Garcia De Oliveira Mima ; Ana Cláudia Pavarina ; Fernanda Da Silveira Vargas ; Eunice Teresinha Giampaolo ; Ana Lucia Machado ; Carlos Eduardo Vergani

Source :

Mycoses [ 0933-7407 ] ; 2011-09.

RBID : ISTEX:8B9DFACA474EFEC2EAD9F15439BA079100C4A34E

English descriptors

Abstract

This in vitro study evaluated different concentrations of chlorhexidine (CHX) solution on the disinfection of dentures colonised with a reference (ATCC 90028) and azole‐resistant (R1, R2 e R3) strains of Candida albicans. Sterile dentures were individually inoculated with one of the strains and incubated at 37 °C for 24 h. Then, each denture was immersed in sterile saline (control) or CHX (2%, 1% or 0.2%) for 10 min. Samples of serial dilutions were spread on Agar Sabouraud Dextrose and incubated at 37 °C for 48 h. The colonies were counted and the values of log(cfu ml−1) were analysed by Kruskal–Wallis test (P < 0.05). Dentures immersed in CHX were incubated for 7 days. For all strains, the cfu ml−1 values of 0.2% CHX were significantly higher than those of 2% and 1% CHX. There was no difference between the cfu ml−1 values of 2% and 1% CHX. For dentures immersed in CHX, ATCC 90028 strain showed lower cfu ml−1 values than R2 and R3 strains. For control dentures, cfu ml−1 values of ATCC 90028 strain were higher than those of R strains. Immersion in 2% CHX resulted in the highest number of dentures without fungal growth after 7 days. For denture disinfection, 2% CHX was the most effective concentration, and R strains were less susceptible to disinfection. Chlorhexidine is effective in disinfection of dentures contaminated with azole‐resistant C. albicans.

Url:

https://api.istex.fr/document/8B9DFACA474EFEC2EAD9F15439BA079100C4A34E/fulltext/pdf

DOI: 10.1111/j.1439-0507.2010.01968.x

Links to Exploration step

ISTEX:8B9DFACA474EFEC2EAD9F15439BA079100C4A34E

Le document en format XML

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<front><div type="abstract" xml:lang="en">This in vitro study evaluated different concentrations of chlorhexidine (CHX) solution on the disinfection of dentures colonised with a reference (ATCC 90028) and azole‐resistant (R1, R2 e R3) strains of Candida albicans. Sterile dentures were individually inoculated with one of the strains and incubated at 37 °C for 24 h. Then, each denture was immersed in sterile saline (control) or CHX (2%, 1% or 0.2%) for 10 min. Samples of serial dilutions were spread on Agar Sabouraud Dextrose and incubated at 37 °C for 48 h. The colonies were counted and the values of log(cfu ml−1) were analysed by Kruskal–Wallis test (P < 0.05). Dentures immersed in CHX were incubated for 7 days. For all strains, the cfu ml−1 values of 0.2% CHX were significantly higher than those of 2% and 1% CHX. There was no difference between the cfu ml−1 values of 2% and 1% CHX. For dentures immersed in CHX, ATCC 90028 strain showed lower cfu ml−1 values than R2 and R3 strains. For control dentures, cfu ml−1 values of ATCC 90028 strain were higher than those of R strains. Immersion in 2% CHX resulted in the highest number of dentures without fungal growth after 7 days. For denture disinfection, 2% CHX was the most effective concentration, and R strains were less susceptible to disinfection. Chlorhexidine is effective in disinfection of dentures contaminated with azole‐resistant C. albicans.</div>
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<sourceDesc><biblStruct type="article"><analytic><title level="a" type="main">Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant <hi rend="italic">Candida albicans</hi>
: <hi rend="italic">in vitro</hi>
 study</title>
<title level="a" type="short">Azole‐resistant Candida on dentures and chlorhexidine</title>
<author xml:id="author-0000"><persName><forename type="first">Ewerton Garcia de Oliveira</forename>
<surname>Mima</surname>
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<affiliation>Dentistry School, São Francisco University, Bragança Paulista, SP, Brazil<address><country key="BR"></country>
</address>
</affiliation>
</author>
<author xml:id="author-0001"><persName><forename type="first">Ana Cláudia</forename>
<surname>Pavarina</surname>
</persName>
<affiliation>Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP – Univ Estadual Paulista, Araraquara, SP, Brazil<address><country key="BR"></country>
</address>
</affiliation>
</author>
<author xml:id="author-0002"><persName><forename type="first">Fernanda</forename>
<surname>da Silveira Vargas</surname>
</persName>
<affiliation>Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP – Univ Estadual Paulista, Araraquara, SP, Brazil<address><country key="BR"></country>
</address>
</affiliation>
</author>
<author xml:id="author-0003"><persName><forename type="first">Eunice Teresinha</forename>
<surname>Giampaolo</surname>
</persName>
<affiliation>Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP – Univ Estadual Paulista, Araraquara, SP, Brazil<address><country key="BR"></country>
</address>
</affiliation>
</author>
<author xml:id="author-0004"><persName><forename type="first">Ana Lucia</forename>
<surname>Machado</surname>
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<affiliation>Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP – Univ Estadual Paulista, Araraquara, SP, Brazil<address><country key="BR"></country>
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</affiliation>
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<author xml:id="author-0005"><persName><forename type="first">Carlos Eduardo</forename>
<surname>Vergani</surname>
</persName>
<affiliation>Department of Dental Materials and Prosthodontics, Araraquara Dental School, UNESP – Univ Estadual Paulista, Araraquara, SP, Brazil<address><country key="BR"></country>
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<p>This <hi rend="italic">in vitro</hi>
 study evaluated different concentrations of chlorhexidine (CHX) solution on the disinfection of dentures colonised with a reference (ATCC 90028) and azole‐resistant (R1, R2 e R3) strains of <hi rend="italic">Candida albicans</hi>
. Sterile dentures were individually inoculated with one of the strains and incubated at 37 °C for 24 h. Then, each denture was immersed in sterile saline (control) or CHX (2%, 1% or 0.2%) for 10 min. Samples of serial dilutions were spread on Agar Sabouraud Dextrose and incubated at 37 °C for 48 h. The colonies were counted and the values of log(cfu ml<hi rend="superscript">−1</hi>
) were analysed by Kruskal–Wallis test (<hi rend="italic">P </hi>
< 0.05). Dentures immersed in CHX were incubated for 7 days. For all strains, the cfu ml<hi rend="superscript">−1</hi>
 values of 0.2% CHX were significantly higher than those of 2% and 1% CHX. There was no difference between the cfu ml<hi rend="superscript">−1</hi>
 values of 2% and 1% CHX. For dentures immersed in CHX, ATCC 90028 strain showed lower cfu ml<hi rend="superscript">−1</hi>
 values than R2 and R3 strains. For control dentures, cfu ml<hi rend="superscript">−1</hi>
 values of ATCC 90028 strain were higher than those of R strains. Immersion in 2% CHX resulted in the highest number of dentures without fungal growth after 7 days. For denture disinfection, 2% CHX was the most effective concentration, and R strains were less susceptible to disinfection. Chlorhexidine is effective in disinfection of dentures contaminated with azole‐resistant <hi rend="italic">C. albicans</hi>
.</p>
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<correspondenceTo>Prof. Dr Ana Cláudia Pavarina, Faculdade de Odontologia de Araraquara – UNESP, Rua Humaitá, nº 1680 – CEP: 14801–903, Araraquara, SP, Brazil. Tel.: +55 016 3301 6410. Fax: +55 016 3301 6406. E‐mail: <email>pavarina@foar.unesp.br</email>
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<titleGroup><title type="main">Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant <i>Candida albicans</i>
: <i>in vitro</i>
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<title type="shortAuthors">E. G. d. O. Mima <i>et al.</i>
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<title type="short">Azole‐resistant <i>Candida</i>
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<p>This <i>in vitro</i>
 study evaluated different concentrations of chlorhexidine (CHX) solution on the disinfection of dentures colonised with a reference (ATCC 90028) and azole‐resistant (R1, R2 e R3) strains of <i>Candida albicans</i>
. Sterile dentures were individually inoculated with one of the strains and incubated at 37 °C for 24 h. Then, each denture was immersed in sterile saline (control) or CHX (2%, 1% or 0.2%) for 10 min. Samples of serial dilutions were spread on Agar Sabouraud Dextrose and incubated at 37 °C for 48 h. The colonies were counted and the values of log(cfu ml<sup>−1</sup>
) were analysed by Kruskal–Wallis test (<i>P </i>
< 0.05). Dentures immersed in CHX were incubated for 7 days. For all strains, the cfu ml<sup>−1</sup>
 values of 0.2% CHX were significantly higher than those of 2% and 1% CHX. There was no difference between the cfu ml<sup>−1</sup>
 values of 2% and 1% CHX. For dentures immersed in CHX, ATCC 90028 strain showed lower cfu ml<sup>−1</sup>
 values than R2 and R3 strains. For control dentures, cfu ml<sup>−1</sup>
 values of ATCC 90028 strain were higher than those of R strains. Immersion in 2% CHX resulted in the highest number of dentures without fungal growth after 7 days. For denture disinfection, 2% CHX was the most effective concentration, and R strains were less susceptible to disinfection. Chlorhexidine is effective in disinfection of dentures contaminated with azole‐resistant <i>C. albicans</i>
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<name type="personal"><namePart type="given">Ewerton Garcia de Oliveira</namePart>
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<abstract lang="en">This in vitro study evaluated different concentrations of chlorhexidine (CHX) solution on the disinfection of dentures colonised with a reference (ATCC 90028) and azole‐resistant (R1, R2 e R3) strains of Candida albicans. Sterile dentures were individually inoculated with one of the strains and incubated at 37 °C for 24 h. Then, each denture was immersed in sterile saline (control) or CHX (2%, 1% or 0.2%) for 10 min. Samples of serial dilutions were spread on Agar Sabouraud Dextrose and incubated at 37 °C for 48 h. The colonies were counted and the values of log(cfu ml−1) were analysed by Kruskal–Wallis test (P < 0.05). Dentures immersed in CHX were incubated for 7 days. For all strains, the cfu ml−1 values of 0.2% CHX were significantly higher than those of 2% and 1% CHX. There was no difference between the cfu ml−1 values of 2% and 1% CHX. For dentures immersed in CHX, ATCC 90028 strain showed lower cfu ml−1 values than R2 and R3 strains. For control dentures, cfu ml−1 values of ATCC 90028 strain were higher than those of R strains. Immersion in 2% CHX resulted in the highest number of dentures without fungal growth after 7 days. For denture disinfection, 2% CHX was the most effective concentration, and R strains were less susceptible to disinfection. Chlorhexidine is effective in disinfection of dentures contaminated with azole‐resistant C. albicans.</abstract>
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<topic>azole resistance</topic>
<topic>disinfection</topic>
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Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant Candida albicans: in vitro study

Effectiveness of chlorhexidine on the disinfection of complete dentures colonised with fluconazole‐resistant Candida albicans: in vitro study

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