Efficacy in the Reduction of Hypersensitivity During Home Whitening With 16% Carbamide Peroxide Applied on Alternate Days: a Randomized Clinical Trial
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 110
- 试验地点
- 2
- 主要终点
- Dental Sensitivity Visual Analog Scale (VAS) 0-10
研究概览
简要总结
The concentration of 16% carbamide peroxide is the highest concentration that European regulations allow for use in home whitening (Council directive 2011/84/EU). This concentration allows for faster results, but instead patients may suffer more frequently from dental sensitivity. The most commonly described side effect of all whitening procedures is the appearance of dentin hypersensitivity, hence the efforts to counteract or overcome this adverse effect.
The objective of the study is to clinically evaluate the difference in dental hypersensitivity produced by home dental whitening treatment using 16% carbamide peroxide in a tray for two hours daily applied daily or every other day for three weeks.
详细描述
Volunteers will be instructed to use the whitening gel once a day for 2 hours, completing a total of 3 weeks of whitening procedure. Depending on the randomization, the bleaching procedure will be performed every other day or daily. In the upper arch, the teeth to be whitened will be from 15 to 25. The evaluations of efficacy, dental sensitivity and satisfaction will be carried out in the upper and lower arch. The color will be recorded before, weekly for 1 month, 6 months and 12 months after finishing the treatment. Shade assessment using the subjective method will be recorded with the Vita Classical color scale (Vita Zahnfabrik, Bad Säckingen, Germany), it will also be determined with the Vita 3D-MASTER scale (Vita Zahnfabrik, Bad Säckingen, Germany). For objective evaluation, the Vita Easyshade spectrophotometer (Vita Zahnfabrik, Bad Säckingen, Germany) will be used, according to the CIEL*a*b* system.
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
- Double (Investigator, Outcomes Assessor)
盲法说明
The present study presents blinding of both the evaluator and the person who will carry out the statistical analysis, and therefore double-blind. The evaluators are considered blind in this study because they do not know the randomization of the patients, being a blind study. The operator and patients know the groups in which they are assigned, due to the delivery and placement of the splints.
A block randomization of the treatment applied to the patients will be carried out, to ensure that the sample size is similar in both groups. The operator will open an envelope for the group's allocation. The assignment of the groups will be carried out using opaque, sealed and sequentially numbered envelopes. The operator will open the envelope when the splints are delivered, and will give the pertinent explanations to the patient. Data will be collected from each patient that may influence treatment results such as age, sex, initial color, systemic pathologies and pharmacological treatments.
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Patients older than 18 years.
- •Patients with vital teeth without restorations, single crowns, implants and/or bridges at the level of the anterior teeth.
- •Absence of cavities in the teeth to be whitened.
- •Patients with satisfactory oral hygiene and periodontally healthy, who are not undergoing periodontal maintenance and who do not use chlorhexidine mouthwashes. Patients with recessions without presenting sensitivity will be included.
- •Absence of sensitivity, measured with the application of air with the dental team's syringe.
- •Patients whose canines have at least an A2-A3 shade (VITA Classic® Guide).
排除标准
- •Patients who have previously undergone whitening (less than 5 years).
- •Patients undergoing orthodontic treatment.
- •Patients with white spots or alterations in the development of enamel or with stains.
- •Patients with a history of trauma to anterior teeth.
- •Patients who require internal whitening.
- •Pregnant or lactating.
- •Patients with allergies to any whitening component.
- •Patients presenting alterations of the oral mucosa (desquamative gingivitis, oral lichen planus, leukoplakia, etc.).
- •Patients with medical conditions considered by the researchers that may compromise the study or the individual safety of the patient.
- •Patients with poor oral hygiene.
- •Patients with previous hypersensitivity.
结局指标
主要结局
Dental Sensitivity Visual Analog Scale (VAS) 0-10
时间窗: 3 weeks
The aim of this study is to clinically evaluate the incidence of tooth sensitivity induced by home whitening with 16% carbamide peroxide applied in a tray for two hours daily or every other day for three weeks. For the assessment, the operators will apply air to the cervical area of the upper and lower canines and ask the patient if he/she experienced sensitivity at any time during the treatment.
次要结局
- Whitening Efficacy CIEL*a*b*(1 month)
研究者
Isabel Giráldez de Luis
Lecturer of Department for Conservative Dentistry at Rey Juan Carlos University
Universidad Rey Juan Carlos