PDT With Blue Light and Curcumin for Oral Disinfection
试验速览
- 阶段
- 1 期
- 状态
- 已完成
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Microbiological analysis by the total number of colony-forming units (CFU).
研究概览
简要总结
Photodynamic therapy (PDT) is a technique used for the oral disinfection. In dentistry, PDT for microbial inactivation may reduces both dental plaque and risk of developing caries as well as contributes to treat gingivitis, periodontitis, peri-implantitis and endodontic diseases. The investigators hypothesis was that PDT with blue light and curcumin promotes oral disinfection during 2 hours after treatment.
详细描述
PDT uses a non-toxic drug that is activated by exposure to light in the presence of oxygen. The excited state this drug transfers energy or electrons to ground state molecular oxygen producing cytotoxic effects on cell. There are productions of reactive oxygen species (ROS) and disrupts several of the cell's functions. This results in bacterial disinfection. In order to perform the PDT on the oral cavity, a device based on blue LED with transparent acrylic diffuser tip and cylindrical shape was developed.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 35 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •non-users of any antibiotic therapy
- •those who do not perform any oral hygiene, such as flossing, brushing and antiseptic mouthwash
- •those who performed 12-hour fasting prior the treatment and measurements
排除标准
- •oral cancer
- •smoking habits
- •pregnancy
- •patients with partial or total dentures
- •orthodontic brackets users
研究组 & 干预措施
PDT with blue light and curcumin
PDT treatment was performed with light and curcumin.The irradiation parameters were: blue-light emitting diode (LED) illumination (455±30 nm), 400 mW of average optical power, 5 min of application, illumination area of 0.666 cm2, 600 mW/cm2 of intensity and 120 J/cm2 of fluence. The curcumin concentration of 30 mg/L was used.
干预措施: mouthwash with curcumin (Drug)
PDT with blue light and curcumin
PDT treatment was performed with light and curcumin.The irradiation parameters were: blue-light emitting diode (LED) illumination (455±30 nm), 400 mW of average optical power, 5 min of application, illumination area of 0.666 cm2, 600 mW/cm2 of intensity and 120 J/cm2 of fluence. The curcumin concentration of 30 mg/L was used.
干预措施: blue LED illumination (Device)
Curcumin
The curcumin concentration of 30 mg/L was used.
干预措施: mouthwash with curcumin (Drug)
Blue light
The irradiation parameters were: blue-light emitting diode (LED) illumination (455±30 nm), 400 mW of average optical power, 5 min of application, illumination area of 0.666 cm2, 600 mW/cm2 of intensity and 120 J/cm2 of fluence.
干预措施: blue LED illumination (Device)
结局指标
主要结局
Microbiological analysis by the total number of colony-forming units (CFU).
时间窗: Two hours
Two saliva samples from each volunteer were collected. The saliva samples underwent serial dilutions and 100-microliters aliquots were plated on brain heart infusion agar plates (in duplicate) and then incubated under microaerophilic conditions. After incubation, the total number of colony-forming units (CFU) was determined.
次要结局
未报告次要终点
研究者
Fernanda Rossi Paolillo
Ph.D
University of Sao Paulo