Revista de Odontologia da UNESP
https://revodontolunesp.com.br/article/doi/10.1590/1807-2577.04219
Revista de Odontologia da UNESP
Original Article

Sutures modified by incorporation of chlorhexidine and cinnamaldehyde: anti-Candida effect, bioavailability and mechanical properties

Suturas modificadas pela incorporação de clorexidina e cinamaldeído: 
efeito anti-Candida, biodisponibilidade e propriedades mecânicas

Raphael Cavalcante COSTA; Yuri Wanderley CAVALCANTI; Ana Maria Gondim VALENÇA; Leopoldina de Fátima Dantas de ALMEIDA

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Abstract

Abstract: Introduction: Antimicrobial sutures are a therapeutic alternative for the control of oral infections.

Objective: Incorporate Chlorhexidine (CHX) and Cinnamaldehyde (CN) in sutures and evaluate the anti-Candida effect, release of antimicrobials and mechanical properties.

Material and method: Silk (S) and Polyglactin 910 (P) sutures were aseptically sectioned (20 mm) and immersed for incorporation in 0.12% CHX, 0.4% CN and 0.9% saline solutions under stirring for 60 minutes (n = 10 / group). Suspensions of 500 μL of Candida albicans (ATCC 90028/ 1 × 106 CFU/mL) were used to evaluate fungal adhesion after the 48 h period at 37°C. The release of CLX and CN were evaluated at 0, 24 and 48 hours (n=3/group) by UV-VIS spectrophotometer (275 nm). The tensile strength and displacement (n=5/group) were evaluated after incorporation (30 mm/min, 50N). Data were analyzed by Anova and Tukey (α = 5%).

Result: No anti-Candida effect was observed on S and P sutures incorporated with CLX and CN (p>0.05). However, progressive release was verified up to 48 after treatment with CLX (S = 0.075 / P = 0.073 μg/mL) and CN (S = 35.33 /P= 5.72 μg/mL). There was a decrease in tensile strength in S (CLX = 9.9 / CN = 9.9 N) and P (CLX = 14.4 / CN = 15.5 N) (p<0.05). No differences were observed for the displacement for S (CLX = 19.3 / CN=20.7 mm) and P (CLX = 16.2 / CN=15.8 mm) (p>0.05).

Conclusion: The incorporation of CLX and CN did not have a positive effect on the biological and mechanical properties of the sutures evaluated.

Keywords

Sutures, Candida albicans, drug liberation, tensile strength

Resumo

Resumo: Introdução: Fios de suturas com antimicrobianos são uma alternativa terapêutica para o controle de infecções orais.

Objetivo: Incorporar Clorexidina (CHX) e Cinamaldeído (CN) em fios de sutura e avaliar o efeito anti-Candida, liberação de antimicrobianos e as propriedades mecânicas.

Material e método: Fios de Seda (S) e Poliglactina 910 (P) foram seccionadas assepticamente (20 mm) e imersos para incorporação em CHX a 0,12%, CN a 0,4% e solução fisiológica a 0,9% sob agitação por 60 minutos (n = 10 / grupo). Suspensões de 500 μL de Candida albicans (ATCC 90028/1 × 106 UFC / mL) foram utilizadas para avaliar a aderência fúngica após o período de 48 horas a 37 ° C. A liberação de CLX e CN foi avaliada em 0, 24 e 48 horas (n = 3 / grupo) por espectrofotômetro UV-VIS (275 nm). A resistência à tração e o deslocamento (n = 5 / grupo) foram avaliados após a incorporação (30 mm / min, 50N). Os dados foram analisados ​​por Anova e Tukey (α = 5%).

Resultado: Não foi observado efeito anti-Candida nas suturas S e P incorporadas com CLX e CN (p> 0,05). No entanto, a liberação progressiva foi verificada até 48 após o tratamento com CLX (S = 0,075 / P = 0,073 μg / mL) e CN (S = 35,33 / P= 5,72 μg / mL). Houve uma diminuição na resistência à tração em S (CLX = 9,9 / CN = 9,9 N) e P (CLX = 14,4 / CN = 15,5 N) (p <0,05). Não foram observadas diferenças para o deslocamento para S (CLX = 19,3 / CN=20,7 mm) e P (CLX = 16,2 /CN= 15,8 mm) (p> 0,05).

Conclusão: A incorporação de CLX e CN não teve efeito positivo sobre as propriedades biológicas e mecânicas das suturas avaliadas.
 

Palavras-chave

Suturas, Candida albicans, libertação de drogas, resistência à tração

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