Evaluation of the Fluoride Dose Response of MFP Dentifrice Using In Situ Caries Model
试验速览
- 阶段
- 4 期
- 状态
- 已完成
- 发起方
- 入组人数
- 15
- 试验地点
- 1
- 主要终点
- Enamel Fluoride Uptake (EFU)
研究概览
简要总结
The purpose of this study is to evaluate the fluoride dose response of different dentifrice fluoride concentrations - 0, 250, 1100 and 2800 ppm fluoride as sodium monofluorophosphate (MFP) and a fifth leg of 1100 ppm Stannous Fluoride (SnF2) using an in situ caries model.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Other
- 盲法
- Double (Participant, Investigator)
盲法说明
Fifth leg of the study will not be randomized, participants will remain blinded but all will use the same product.
入排标准
- 年龄范围
- 18 Years 至 85 Years(Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Be between 18 and 85 years of age;
- •Provide written informed consent prior to participation and be given a signed copy of the informed consent form;
- •Be in general good health as determined by the Investigator based on a review of the health history/update for participation in the trial;
- •Be wearing a removable mandibular partial denture with sufficient room in one posterior buccal flange area to accommodate two 4 mm round enamel specimens and room on the same side to accommodate two 4 mm round specimens in the buccal surface of two posterior denture teeth;
- •Be willing and capable of wearing their removable partial denture 24 hours a day for four (4), three-week treatment periods;
- •Be willing to allow study personnel to drill specimen sites (as described in #iv) in their mandibular partial denture;
- •Be in good medical and dental health with no active caries or periodontal disease (NOTE: subjects presenting at screening with caries may continue in the study if their carious lesions are restored prior to beginning treatment 1);
- •Have a salivary flow rate in the range of normal values (unstimulated whole saliva flow rate ≥ 0.2 mL/min; gum base stimulated whole saliva flow rate ≥ 0.8 mL/min).
排除标准
- •Currently being pregnant, intending to become pregnant during the study period, or breast feeding;
- •Currently having any medical condition that could be expected to interfere with the subject's safety during the study period;
- •Currently taking antibiotics or having taken antibiotics in the two weeks prior to beginning treatment 1;
- •Having participated in another clinical study or receipt of an investigational drug within 30 days of beginning treatment 1; or
- •Taking fluoride supplements, required to use a fluoride mouth rinse, or have received a professional fluoride treatment in the two weeks preceding specimen placement;
- •Currently taking or have ever taken bisphosphonate drugs (e.g., Fosamax, Actonel and Boniva) for the treatment of osteoporosis.
研究组 & 干预措施
Period 1
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 0 ppm F (Drug)
Period 1
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 250 ppm F as MFP (Drug)
Period 1
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 1100 ppm as MFP (Drug)
Period 1
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 2800 ppm F as MFP (Drug)
Period 2
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 0 ppm F (Drug)
Period 2
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 250 ppm F as MFP (Drug)
Period 2
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 1100 ppm as MFP (Drug)
Period 2
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 2800 ppm F as MFP (Drug)
Period 3
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 0 ppm F (Drug)
Period 3
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 250 ppm F as MFP (Drug)
Period 3
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 1100 ppm as MFP (Drug)
Period 3
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 2800 ppm F as MFP (Drug)
Period 4
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 0 ppm F (Drug)
Period 4
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 250 ppm F as MFP (Drug)
Period 4
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 1100 ppm as MFP (Drug)
Period 4
0 ppm F (placebo, negative control), 250 ppm F as MFP (dose-response control), 1100 ppm F as MFP (reference), 2800 ppm F as MFP (dose-response control)
干预措施: 2800 ppm F as MFP (Drug)
Period 5
1100 ppm SnF2 toothpaste only
干预措施: 1100 ppm SnF2 (Drug)
结局指标
主要结局
Enamel Fluoride Uptake (EFU)
时间窗: Evaluations will occur after 21 days of product use
The EFU test will evaluate the level of fluoride in partially demineralized enamel specimens via the microdrill enamel biopsy technique by \[Sakkab et al., 1984\]. The calculated scores will be measured in μg F/cm2.
次要结局
- Enamel Fluoride Uptake (EFU)(Evaluations will occur after 14 days of product use)
- Percent Surface Microhardness (SMH)(Evaluations will occur after 21 days of product use)
