Methods: In this single-blind randomized clinical study, fourteen patients were randomly divided into the first group (Pola Office), and the second group (Opalescence Xtra Boost). Color change (ΔE) was calculated using the color-difference equation established by the Commission Internationale de l’Eclairage. Subsequently, data concerning dental hypersensitivity was assessed by subjective panelist questionnaires administered after the 7-day recall examination.
Results: The mean ΔE for the first treatment group was 4.8 ± 1.3, whereas the mean ΔE for the second group was 4.5 ± 1.3 immediately after the treatment (P=0.44). Furthermore, after one week the mean ΔE for the first group was 2.7 ± 1.0, and for the second treatment group was 3.3 ± 1.4 (P=0.18). In addition, there was no statistically significant difference in gingival irritation and tooth sensitivity between the two groups.
Conclusions: Both whitening agents are clinically equivalent regarding tooth color change, sensitivity, and gingival irritation.