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临床试验/NCT04763044
NCT04763044已完成4 期

Evaluation of the Fluoride Dose Response of MFP Dentifrice Using In Situ Caries Model

Procter and Gamble1 个研究点 分布在 1 个国家目标入组 15 人开始时间: 2021年3月1日最近更新:
适应症
干预措施
相关药物

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

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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

Other

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)

研究者

发起方
Procter and Gamble
申办方类型
Industry
责任方
Sponsor

研究点 (1)

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