Comparative Evaluation of Dentin Hypersensitivity Reduction Over One Month after a Single Topical Application of...

Dentinal hypersensitivity (DH) is a prevalent condition characterized by sharp, transient pain arising from exposed dentine in response to various stimuli. It is common among patients with gingival recession, tooth abrasion, and erosion.

A prospective experimental study was conducted in the Department of Periodontology at the Chhattisgarh Dental College and Research Institute. A total of 45 patients with DH were randomly assigned to three groups: Test Group I (5% potassium nitrate gel), Test Group II (Tetric-N-Bond self-etch adhesive), and Test Group III (fluoride varnish). Clinical assessments of DH were conducted immediately after treatment, at one week, and at one month, using tactile sensation, cold stimuli, and air blast tests. Pain levels were measured using a 10-point visual analog scale (VAS).

Tetric-N-Bond demonstrated the most significant reduction in DH at all follow-up intervals. Immediately after application, VAS scores (tactile) were potassium nitrate (1.33 ± 0.48), Tetric-N-Bond (1.53 ± 0.74), and fluoride varnish (3.06 ± 0.88). After one month, the scores were: Tetric-N-Bond (2.53 ± 1.12), potassium nitrate (3.20 ± 0.41), and fluoride varnish (4.73 ± 1.57). Significant differences were observed between all groups (P < 0.05). The Schiff cold air score also supported these findings, showing Tetric-N-Bond as the most effective treatment, followed by potassium nitrate and fluoride varnish.

The study concluded that Tetric-N-Bond is the most effective treatment for reducing DH immediately and over a one-month period, followed by potassium nitrate and fluoride varnish.