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临床试验/NCT01732744
NCT01732744已完成不适用

A Castor Bean Solution Reduces Complete Denture Biofilm

University of Sao Paulo0 个研究点目标入组 50 人开始时间: 2008年3月最近更新:
适应症

试验速览

阶段
不适用
状态
已完成
入组人数
50
主要终点
Denture area covered with biofilm

研究概览

简要总结

To evaluate the efficacy of a castor bean-based solution (Ricinus communis) for removal of complete denture biofilm, comparing it with two products available on the market (sodium hypochlorite and alkaline peroxide). Fifty complete maxillary denture-wearers were instructed to brush their dentures after meals and once a day, for a period of 07 days, immerse them in the following solutions: A - Control: Physiological solution(20 minutes). B - Polident alkaline peroxide(3 minutes). C - 1% sodium hypochlorite(20 minutes). D - castor bean-based solution(20 minutes). The participants immersed their dentures in each of the solutions, according to a randomized sequence. For biofilm quantification, before (Baseline) and after the use of each product, the internal surfaces of maxillary complete dentures were revealed (1% neutral red), photographed and the stained biofilm was quantified with the aid of software (Image Tool 3.0). After concluding measurements of the areas (total and biofilm), the percentage of surface covered by biofilm of the complete denture was calculated .

详细描述

The study sought to minimize the occurrence of bias, and whenever possible sought to "blind" the parties involved (researchers, volunteers and statisticians), since none of them had knowledge of the allocation of treatments. The present study also followed the criteria described in the CONSORT Declaration

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Crossover
主要目的
Prevention
盲法
Triple (Participant, Investigator, Outcomes Assessor)

入排标准

年龄范围
45 Years 至 80 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • Adult patients of both genders, age-range 45 years and over, completely edentulous, in a good state of general health, wearers of maxillary complete dentures fabricated of heat polymerized acrylic resin and acrylic artificial teeth.

排除标准

  • Dentures that had been used for less than 03 years, and broken, fractured or relined dentures.

结局指标

主要结局

Denture area covered with biofilm

时间窗: 8 weeks

The volunteers were instructed to brush their dentures ,3 times a day and use the following chemical immersion methods, only once a day after dinner: A)Physiological solution .B) 1% Sodium Hypochlorite .C) Polident Alkaline Peroxide .D) 2,0% Castor bean solution . All the volunteers used one of the four chemical methods in a random sequence for a period of 07 days each. Between each period of use, there was a one week wash out period during which the patient performed his/her habitual cleaning procedure.On the first day and after 07 days of using the interventions, the internal surfaces of dentures were revealed with 1% neutral red solution and photographed with a digital photographic camera. Biofilm was measured on the photographic images of the complete dentures, using the computerized quantitative method "ImageTool". After concluding measurements of the areas (total and biofilm), the percentage of surface covered by biofilm of the complete denture was calculated .

次要结局

未报告次要终点

研究者

申办方类型
Other
责任方
Principal Investigator
主要研究者

Ingrid Machado de Andrade

Phd

University of Sao Paulo

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