Fluoride Varnish X Glass Ionomer Sealant on Cervical Dentin Hypersensitivity

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).

Inclusion criteria

• Minimum age of 18 years old;
• Presented good general health;
• Presented at least one tooth with DH reported in the cervical region, which has a graded sensitivity of 4 or more on the VAS scale.

Exclusion criteria

• Presented active caries lesions or with defective restorations in the tooth to be analyzed;
• Presented enough dentin loss that required restorative treatment or periodontal surgery;
• Volunteers who underwent any professional desensitizing treatment in the last 6 months;
• Volunteers who used desensitizing pastes in the 3 months;
• Volunteers who were using anti-inflammatory or analgesic drugs at the time of recruitment;
• Volunteers were are pregnant or breastfeeding.