The influence of smoking on the effectiveness of at-home bleaching: A prospective clinical study.
J Esthet Restor Dent
; 35(6): 869-877, 2023 09.
Article
de En
| MEDLINE
| ID: mdl-36960913
ABSTRACT
OBJECTIVES:
To evaluate the effect of smoking on tooth whitening and color change after at-home bleaching. MATERIALS ANDMETHODS:
This prospective clinical study evaluated two groups ofparticipants:
NS-non-smokers (n = 24) and S-smokers (n = 16). All subjects were treated with at-home bleaching using 22% carbamide peroxide (CP) for 1 h/day for 14 days. Color coordinates (L*-luminosity, a*-red-green axis and b*-yellow-blue axis) were obtained before bleaching (D0-baseline), 1 day (D1), 15 days (D15), and 1 month (D30) after bleaching. The whiteness index (WID ) and CIEDE2000 color differences (ΔE00 ) were calculated for S and NS. Color changes between S and NS subjects for specific teeth (CI-Central Incisors, LI-Lateral Incisors, and C-Canines) were analyzed using the Mann-Whitney test (α = 0.05).RESULTS:
There was no significant difference in WID between S and NS subjects at baseline. NS participants showed higher WID than S at D1, D15, and D30 (p < 0.05). NS showed higher ΔWID for CI and C between D0 and the other evaluation times (D1, D15, and D30) compared to S. Smokers showed higher darkening of CI than NS in ΔWID D30-D1 (p < 0.05). Color changes showed similar overall behavior for ΔWID . For all evaluation times, ΔWID and ΔE00 values were below the corresponding acceptability thresholds.CONCLUSION:
At-home bleaching was effective on smokers and nonsmokers. Smoking negatively affected color stability after bleaching. ΔE00 and ΔWID were acceptable for both groups. CLINICALSIGNIFICANCE:
Although smoking negatively affected color stability after bleaching, the observed changes were clinically acceptable.Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Blanchiment dentaire
/
Agents de blanchiment des dents
Type d'étude:
Observational_studies
Langue:
En
Journal:
J Esthet Restor Dent
Sujet du journal:
ODONTOLOGIA
Année:
2023
Type de document:
Article
Pays d'affiliation:
Brésil