Effectiveness and impact of the walking bleach technique on esthetic self-perception and psychosocial factors: A randomized double-blind clinical trial
Objective: This trial evaluates the impact of
psychosocial and esthetic self-perceptions of
patients undergoing nonvital tooth bleaching
using the walking bleach technique. We also
assessed the clinical effectiveness of bleaching
tooth discoloration. Methods: Fifty volunteers with nonvital tooth
discoloration were enrolled. Teeth were randomized into two groups: 35% hydrogen peroxide (n=25) and 37% carbamide peroxide (n=25).
Intracoronal bleaching was performed over
four sessions using the walking bleach technique. Tooth color was evaluated at each session to measure total color variation. The shade
guide was arranged from highest (B1) to lowest
(C4) values to assess the color and calculate the
color change in the number of shade guide
units. Subjective and objective assessments
were compared with the tooth counterpart. Esthetic self-perception and psychosocial factors were assessed before and after treatment.
Results: Color change was 15.48,5.17 for hydrogen peroxide and 14.02,4.85 for carbamide
peroxide. There was no significant difference
at any time point (p.0.05) except at sessions 3
and 4 (p,0.05). Overall, whitened teeth values
were similar to those of counterpart teeth
(p.0.05). There was a decrease in Oral Health
Impact Profile and Psychosocial Impact of
Dental Esthetics questionnaire scores after
treatment compared with baseline (p,0.05).
Conclusion: The walking bleach technique
was highly effective on nonvital teeth and
had a positive effect on self-esthetic perception
and psychological impact for the patients.
Effectiveness and impact of the walking bleach technique on esthetic self-perception and psychosocial factors: A randomized double-blind clinical trial