Fernanda Valentini-Mioso1, Tamires T Maske2, Maximiliano S Cenci3, Noéli Boscato3, Tatiana Pereira-Cenci4. 1. Graduate student, Graduate Program in Dentistry, Federal University of Pelotas (UFPEL), Pelotas, Brazil. 2. Graduate student, Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil. 3. Associate Professor, Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil. 4. Associate Professor, Graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil. Electronic address: tatiana.cenci@ufpel.tche.br.
Abstract
STATEMENT OF PROBLEM: Clinical evidence on the best chemical protocol for the disinfection and removal of biofilm from complete dentures is lacking. PURPOSE: The purpose of this crossover randomized clinical trial was to assess the effectiveness of various chemical hygiene clinical protocols in reducing the microbial viability of biofilm formed on complete dentures. MATERIAL AND METHODS: In this triple-blind (participants, dentist, and outcome evaluator) study, complete denture wearers without candidiasis were randomly divided into 4 groups (n=40) according to the chemical hygiene protocol: water (placebo), 0.5% sodium hypochlorite solution, 0.12% chlorhexidine gluconate solution, and 5% sodium bicarbonate solution. The biofilm formed on the palate intaglio and denture teeth was collected and assessed in each experimental phase for quantitative microbial viability at the seventh and 14th day after using the chemical protocol. RESULTS: Two participants were lost. Data were analyzed by MANOVA and Tukey HSD tests. Soaking dentures was not effective in decreasing Candida albicans, C. non-albicans, and lactobacillus counts. The use of sodium hypochlorite and chlorhexidine decreased total microorganisms and Streptococcus mutans counts for both palate and teeth compared with water and sodium bicarbonate. The intaglio of the dentures always presented higher microbial counts than did the denture teeth. CONCLUSIONS: The use of sodium hypochlorite and chlorhexidine and mechanical cleansing with a toothbrush decreased microbial viability in healthy complete denture wearers.
RCT Entities:
STATEMENT OF PROBLEM: Clinical evidence on the best chemical protocol for the disinfection and removal of biofilm from complete dentures is lacking. PURPOSE: The purpose of this crossover randomized clinical trial was to assess the effectiveness of various chemical hygiene clinical protocols in reducing the microbial viability of biofilm formed on complete dentures. MATERIAL AND METHODS: In this triple-blind (participants, dentist, and outcome evaluator) study, complete denture wearers without candidiasis were randomly divided into 4 groups (n=40) according to the chemical hygiene protocol: water (placebo), 0.5% sodium hypochlorite solution, 0.12% chlorhexidine gluconate solution, and 5% sodium bicarbonate solution. The biofilm formed on the palate intaglio and denture teeth was collected and assessed in each experimental phase for quantitative microbial viability at the seventh and 14th day after using the chemical protocol. RESULTS: Two participants were lost. Data were analyzed by MANOVA and Tukey HSD tests. Soaking dentures was not effective in decreasing Candida albicans, C. non-albicans, and lactobacillus counts. The use of sodium hypochlorite and chlorhexidine decreased total microorganisms and Streptococcus mutans counts for both palate and teeth compared with water and sodium bicarbonate. The intaglio of the dentures always presented higher microbial counts than did the denture teeth. CONCLUSIONS: The use of sodium hypochlorite and chlorhexidine and mechanical cleansing with a toothbrush decreased microbial viability in healthy complete denture wearers.
Authors: Rodrigo Moreira Bringel da Costa; Rodrigo Lorenzi Poluha; Giancarlo De la Torre Canales; Joel Ferreira Santiago Junior; Paulo Cesar Rodrigues Conti; Karin Hermana Neppelenbroek; Vinicius Carvalho Porto Journal: Clin Oral Investig Date: 2020-09-24 Impact factor: 3.573
Authors: Amanda Aparecida Maia Neves Garcia; Carolina Yoshi Campos Sugio; Lucas José de Azevedo-Silva; Anna Clara Gurgel Gomes; André Ulisses Dantas Batista; Vinicius Carvalho Porto; Simone Soares; Karin Hermana Neppelenbroek Journal: Arch Microbiol Date: 2021-12-24 Impact factor: 2.552