Effectiveness of Different Desensitizing Protocols in In-Office Dental Whitening: Clinical, Blind and Randomized Study

Aims: To evaluate the efficacy of ozonated sunflower oil in managing sensitivity during and after in-office dental bleaching.

Methodology: Thirty patients were selected and allocated into two distinct groups - 5% Potassium Nitrate and 2% Sodium Fluoride (NF) and ozonated sunflower oil (OGO). Desensitization was performed before the application of the bleaching gel for 10 minutes. Hydrogen peroxide was applied for 30 minutes. The evaluation of the degree of sensitivity (DS) was performed on an illustrative scale from 0 to 4, and the patients were questioned during bleaching (05 minutes, 10 minutes, 15 minutes, 20 minutes, 25 minutes, and 30 minutes) and after bleaching (1 hour, 24 hours, 48 hours and 7 days). The degree of whitening (DW) was assessed before and 7 days after treatment. The data were subjected to Wilcoxon statistical analysis (p<0.05).

Results: In the intra-group analysis, there was a statistical difference between the times. In the inter-group analysis, ozonated sunflower oil compared to the conventional desensitizing agent resulted in statistical differences for the times of 25 minutes, 30 minutes and 1 hour post-bleaching. In the color saturation analysis, both groups showed statistical differences between the initial color and the final color.

Conclusion: Ozonated sunflower oil demonstrates significant management of sensitivity during and after in-office dental bleaching, in addition to not interfering with the degree of color saturation of the bleached teeth and the efficiency of hydrogen peroxide.