Dentin Sensitivity Clinical Trial
Official title:
Efficacy of a Fluoride Varnish and a Glass Ionomer Sealant on Cervical Dentin Hypersensitivity: A Randomized Clinical Trial
Dentin hypersensitivity (DH) can be defined as acute, short-duration pain from open dentin tubules in exposed dentin. The symptom of DH is subjective and varies from patient to patient and may present as mild discomfort or as a high-intensity pain, which can affect the individual's quality of life, interfering with their eating and hygiene habits. One approach to treatment would be the use of agents that chemically desensitize sensory nerves, blocking the transmission of nerve stimuli to the central nervous system. The effectiveness of desensitizing treatments is influenced by several factors present in the oral cavity, which can contribute to a greater effect of these agents but can also be responsible for removing them from the dental surface. To date, studies have been carried out in the short term, not exceeding an average period of 12 weeks, so there is no consensus on the technique or agent that will guarantee the most effective and lasting effect against DH, not even the ideal period for reapplication. Thus, more studies are needed to assess the clinical behavior of desensitizing products on the market, especially the most recent releases. Therefore, the aim of this study was to clinically compare the effectiveness of different office treatments for DH, being ClinproTM White Varnish, ClinproTM XT Varnish, and a control group (placebo) through pain assessment with the Visual Analog Scale (VAS), after stimulation with air from the triple syringe.
This study compares the effectiveness of two in-office treatment for dentin hypersensitivity: G1:ClinproTM White Varnish, G2:ClinproTM XT Varnish, and a G3:placebo (where the application of a product was only simulated). Recruitment of the 121 volunteers were based on their self-reported complaint of dentin hypersensitivity, which confirmed with the use of an air blast from a triple syringe. Then, he/she showed in the VAS scale (which varies from 0=no pain to 10=the worst pain possible) the value that best describes the pain sensation. The subjects that present at least one tooth with a value of 4 and above in the VAS scale (if more than one hypersensitive tooth was present, the mean VAS values obtained were used, for each patient) was randomly allocated into the experimental groups. Two weeks before the study started, the volunteers went through a wash out period, where they used only the oral hygiene products donated by the researchers, which were used up to the end of the study. The in-office treatments were performed after prophylaxis, according to the manufacturer´s instructions, by one trained researcher, which was blind to the treatments. DH evaluation was performed 15 min after the application of the treatments, by a different researcher, which also blind to the treatment, and which used the same methodology described early for the detection of initial pain. The volunteers were recalled for the DH evaluation after one and four weeks of the treatments. DH evaluation was also performed after 12 and 24 weeks of the treatments, except in the placebo group, which received the proper DH treatment after the first four weeks of the study. Data was analyzed with the appropriate statistical methods (α=0.05). ;
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