Microbiological assessment of the effectiveness of chlorhexidine mouthrinse before taking impressions of the oral cavity

Moura, Carmem Dolores Vilarinho Soares de; Nogueira, Lorenna Bastos Lima Verde; Nascimento, Caroline Costa; Soares, Isadora Melo Vilarinho; Castro, Janaína Cordeiro de Oliveira; Moura, Walter Leal de

doi:10.1590/s1980-65232012000200012

Cited by 4 publications

(6 citation statements)

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“…Irreversible hydrocolloids are routinely used in clinical dental practice; however, they require proper disinfection because their structure is similar to agar polysaccharides, which are known to be excellent substrates for microorganisms 2,3 . The hydrophilic nature of this impression material allows greater retention of bacteria (two to five times greater than that with elastomer molds) 3,4 .…”

Section: Discussionmentioning

confidence: 99%

“…The hydrophilic nature of this impression material allows greater retention of bacteria (two to five times greater than that with elastomer molds) 3,4 . Therefore, it is necessary the implementation protocols disinfection of dental impressions during graduation, as a basic requirement for the control of cross infection 8 .…”

Section: Discussionmentioning

confidence: 99%

“…This outcome Rev Odontol UNESP. 2016 Jan-Feb; 45(1): [1][2][3][4][5][6] Conducts of disinfection, pouring and storage... 3 attests for the progression of learning and the increased perception of the use of biosecurity measures in infection control.…”

Section: Discussionmentioning

confidence: 99%

“…This material is characterized as unstable when considering the need to disinfect it, because it has a structure similar to agar polysaccharides that are known as excellent substrates for microorganisms 2,3 , as well as its hydrophilic nature allows greater retention of bacteria, being checked two to five times larger when compared to elastomeric impression 3,4 . The possibility of contamination between the patient and the dental team by manipulating molds and models, makes it essential to carry out disinfection of the molds as cross-infection control measures [5][6][7] .…”

Section: Introductionmentioning

confidence: 99%

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Conducts of disinfection, pouring and storage of irreversible hydrocolloid impressions by undergraduate students

Silva

Vasconcelos

Martins

et al. 2016

Rev. odontol. UNESP

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ResumoIntrodução: A obtenção de modelos odontológicos que representam com precisão os tecidos moldados requer do profissional muita atenção, principalmente quando se utiliza o hidrocolóide irreversível como material de moldagem. Objetivo: Avaliar as condutas dos alunos de graduação em Odontologia em diferentes estágios sobre os procedimentos de desinfecção de moldes de hidrocolóide irreversível, vazamento e acondicionamento dos modelos odontológicos. Material e método: Trata-se de um estudo observacional, transversal e descritivo, com amostra censitária constituída por 89 alunos matriculados nos estágios supervisionados I, II, III e IV. A coleta de dados foi realizada por meio de um formulário estruturado contendo 8 questões. Os dados foram analisados com nível de significância de 5%. Resultado: A maioria dos graduandos (88,8%) realizavam o procedimento de desinfecção, sendo o método de desinfecção mais utilizado (64,6%) o spray de hipoclorito de sódio a 1% acondicionado em recipiente fechado. O tempo de desinfeção por 10 minutos foi o mais relatado (86,1%). Os alunos dos estágios iniciais apresentaram melhores condutas referente a proporção água/gesso, quando comparados com os alunos dos estágios finais. Em todos os estágios as condutas de vazamento e acondicionamento do conjunto molde e modelo durante a reação de presa foram negligenciadas. Verificou-se associação estatisticamente significativa entre o estágio cursado e o método de desinfecção, proporção água/pó e método de vazamento dos moldes (p<0,05). Conclusão: Os alunos apresentam condutas adequadas de desinfeção, no entanto devem ser estimulados a utilizar a prática clínica baseada em evidências a fim de melhorar as condutas de vazamento e acondicionamento dos moldes de hidrocolóide irreversível.Descritores: Sulfato de cálcio; desinfecção; odontologia. AbstractIntroduction: Obtaining dental models that accurately represent the molded oral tissue requires professional attention, especially when using irreversible hydrocolloid as a molding material. Objective: To evaluate the conducts of undergraduate dental students at different internships for the disinfecting procedures, pouring, and storage of irreversible hydrocolloid impressions. Material and method: This is an observational, cross-sectional and descriptive study with a census sample of 89 students enrolled in the supervised internships I, II, III and IV. Data collection was performed using a structured questionnaire containing eight questions. Data were analyzed at the 5% significance level. Result: Most of the students (88.8%) performed the disinfection procedure, for which the most widely used method (64.6%) was the application of sodium hypochlorite 1% spray stored in a sealed container. The most common disinfection time was 10 minutes (86.1%). Students in the early internships performed better in regard to the proportion of water/plaster to be used compared with students in the final internships. At all internships, pouring and storage of the ensemble of mold and model were neglected during the ...

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Conducts of disinfection, pouring and storage of irreversible hydrocolloid impressions by undergraduate students

Silva

Vasconcelos

Martins

et al. 2016

Rev. odontol. UNESP

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“…O uso da clorexidina com o objetivo de minimizar a carga microbiana aderida aos moldes de HI foi relatado em estudo do qual o bochecho com solução de clorexidina previamente à obtenção de moldes de HI demonstrou redução da sua contaminação, sendo a concentração de 0,2% mais eficaz quando comparada à de 0,12% 24 .…”

Section: Discussionunclassified

Precisão dimensional de moldes de hidrocoloide irreversível manipulado com solução de clorexidina

Moura

Verde²,

Silva³

et al. 2014

Rev. da Fac. de Odontologia, UPF

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IntroduçãoNa impossibilidade de uso do processo clássico de esterilização nos moldes da cavidade bucal, a desinfecção química com soluções desinfetantes vem sendo utilizada e discutida em relação aos materiais de moldagem. O hidrocoloide irreversível (alginato), por exemplo, apresenta limitações quanto ao processo de desinfecção por imersão do molde na solução desinfetante, considerando que a natureza hidrófila desse material exige um limite de tempo de contato com os líquidos desinfetantes 1,2 . No entanto, alguns estudos relatam que técnicas de imersão, spray 3 e nebulização de hipoclorito de sódio 4,5 mostraram-se métodos eficazes do ponto de vista microbiológico e da precisão dimensional.

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2019

JDHODT

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Objective: It was evaluated the influence of pre-procedural rinse with mouthwash with chlorhexidine (0.12%) on the degree of air contamination in a dental clinic. Methods:The sample consisted of 21 patients with periodontal disease were randomly divided into three groups: pre-procedural mouthwash Absence (Control); pre-procedural rinse mouthwash with distilled water (Water) and pre-procedural rinse with mouthwash with chlorhexidine base 0.12% (Chlorhexidine). It was conducted basic periodontal treatment using ultrassonic device. The microbial load generated during the service was captured by sedimentation plates with half Agar Blood culture (AS), exposed for a time of 10 minutes. The boards remained in an oven at 37°C for 48h. It held the count of colony forming units (cfu/cm²).Results: By applying Kruskal-Wallis test, there was a statistically significant difference between groups. Dunn's test for multiple comparisons revealed that the Control group average showed a statistically significant difference compared to the others. Conclusion:Prior mouthwash dental care (chlorhexidine-based 0.12% and distilled water) influenced air contamination, being effective in reducing the amount of microorganisms present in the aerosol generated by dental procedures with ultrasonic device. Clinical relevance: Proven spread of contaminants in the air through aerosols and their reduction with the prior mouthwash dental care, it is suggested that this measure is routinely adopted to reduce the risk of cross-infection.

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Microbiological assessment of the effectiveness of chlorhexidine mouthrinse before taking impressions of the oral cavity

Cited by 4 publications

References 13 publications

Conducts of disinfection, pouring and storage of irreversible hydrocolloid impressions by undergraduate students

Conducts of disinfection, pouring and storage of irreversible hydrocolloid impressions by undergraduate students

Precisão dimensional de moldes de hidrocoloide irreversível manipulado com solução de clorexidina

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