9 documents found, page 1 of 1
Alkaline Peroxides Versus Sodium Hypochlorite for Removing Denture Biofilm: a C...
Peracini,Amanda; Regis,Rômulo Rocha; Souza,Raphael Freitas de; Pagnano,Valéria Oliveira; Silva,Cláudia Helena Lovato daAbstract This study evaluated the efficacy of cleanser solutions on denture biofilm removal by a crossover randomized clinical trial. Thirty two edentulous patients were instructed to brush their dentures (specific brush and liquid soap) three times a day (after breakfast, lunch and dinner) and to soak them (≥ 8 h) in: (C) control -water; (AP): alkaline peroxide; or (SH) 0.5% sodium hypochlorite. Each solution ...
Soft denture liners and sodium perborate: sorption, solubility and color change
Pisani,Marina Xavier; Leite,Vanessa Maria Fagundes; Badaró,Maurício Malheiros; Malheiros-Segundo,Antônio de Luna; Paranhos,Helena de Freitas de OliveiraAbstract Aim: To evaluate the sorption, solubility and color change in two lining materials after 120 days of immersion in either sodium perborate or artificial saliva. Methods: Thirty disk-shaped specimens (15×3 mm) of each material, Mucopren(r) soft (MS) and Elite(r) soft (ES) were manufactured and divided into two groups. The specimens in the control group (CG, n=15) were stored in artificial saliva at 37 °C...
Effect of cleanser solutions on the color of acrylic resins associated with tit...
Paranhos,Helena de Freitas Oliveira; Bezzon,Osvaldo Luiz; Davi,Letícia Resende; Felipucci,Daniela Nair Borges; Silva,Cláudia Helena Lovato daThis study evaluated the effect of cleanser solutions on the color of heat-polymerized acrylic resin (HPAR) and on the brightness of dental alloys with 180 immersion trials. Disk-shaped specimens were made with I) commercially pure titanium, II) nickel-chromium-molybdenum-titanium, III) nickel-chromium molybdenum, and IV) nickel-chromium-molybdenum beryllium. Each cast disk was invested in the flasks, incorpora...
Effect of experimental Ricinus communis solution for denture cleaning on the pr...
Pisani,Marina Xavier; Macedo,Ana Paula; Paranhos,Helena de Freitas Oliveira; Silva,Cláudia Helena Lovato daThis study evaluated Knoop hardness, surface roughness and color alteration of artificial teeth for dentures after immersion in water, 1% sodium hypochlorite and an experimental solution of 2% Ricinus communis (RC). Thirty specimens of Vipi, Biolux and Trilux were analyzed. Tests of Knoop hardness, surface roughness and color alteration were conducted immediately after specimen preparation (T0) and after two im...
Behaviors and hygiene habits of complete denture wearers
Peracini,Amanda; Andrade,Ingrid Machado de; Paranhos,Helena de Freitas Oliveira; Silva,Cláudia Helena Lovato da; Souza,Raphael Freitas deIn this study, a questionnaire was applied to patients from Ribeirão Preto Dental School, University of São Paulo, Brazil, to evaluate the hygiene methods and habits concerning the use of complete dentures, the age of dentures, and whether patients have been instructed on how to clean their dentures. The mean age of patients was 63.35 years, and most of them were females (82.08%). The results showed that 62.26%...
The Effect of Experimental Denture Cleanser Solution Ricinus communis on Acryli...
Pisani,Marina Xavier; Silva,Cláudia Helena Lovato da; Paranhos,Helena de Freitas Oliveira; Souza,Raphael Freitas; Macedo,Ana PaulaThis study evaluated heat-polymerized (HPR) and microwave-polymerized acrylic resins (MPR), after immersion in water, 1% hypochlorite and Ricinus communis solution (RC). Knoop hardness, color alteration, roughness and flexural strength tests were performed after obtaining the specimens and after time intervals of 15 (T15) and 183 (T183) days. Variations in data (Δ) were submitted to ANOVA and Tukey tests (P = 0...
Efficacy of biofilm disclosing agent and of three brushes in the control of com...
Silva,Cláudia Helena Lovato da; Paranhos,Helena de Freitas OliveiraOBJECTIVE: This report evaluated the efficacy of three brushes and one biofilm disclosing agent in complete denture cleansing. METHODS: Twenty-seven wearers of maxillary dentures were distributed into three groups and received different brushes: Oral B40, conventional toothbrush (Oral B); Denture, denture-specific brush (Condor); Johnson & Johnson, denture-specific brush (Johnson & Johnson). The 60-day ...
Modified functional impression technique for complete dentures
Malachias,Alexandre; Paranhos,Helena de Freitas Oliveira; Silva,Cláudia Helena Lovato da; Muglia,Valdir Antônio; Moreto,CarlaThis report describes the use of a removable acrylic resin tray handle that can be easily attached to custom impression trays to produce an improved peripheral sealing zone. This device can be indicated to develop functional impressions for complete dentures using the patient-conducted muscular motion technique. In upper trays, the handle is fixed in the midline with acrylic resin, while in lower trays the cent...
Comparative study of methods for the quantification of biofilm on complete dent...
Paranhos,Helena de Freitas Oliveira; Silva,Cláudia Helena Lovato daThis study compared the application and reliability of 4 methods for biofilm quantification (computerized, paper-weighing, point-counting, and planimetric) in complete dentures, verifying the correlation between them. The internal surfaces of 62 complete dentures were stained (5% erythrosine) and photographed. The slides were projected on paper, and the areas (total and biofilm-covered) were outlined with a pen...