The influence of smoking on the effectiveness of at‐home bleaching: A prospective clinical study

Objectives To evaluate the effect of smoking on tooth whitening and color change after at‐home bleaching. Materials and Methods This prospective clinical study evaluated two groups of participants: NS—non‐smokers (n = 24) and S—smokers (n = 16). All subjects were treated with at‐home bleaching using...

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Vydáno v:Journal of esthetic and restorative dentistry Ročník 35; číslo 6; s. 869 - 877
Hlavní autoři: Silva, Rodrigo Rohenkohl, Carli, João Paulo, Della Bona, Alvaro, Collares, Kauê Faria, Pecho, Oscar Emilio, Meireles, Sônia Saeger, Júnior, João Renato Dieterich, Benetti, Paula
Médium: Journal Article
Jazyk:angličtina
Vydáno: Hoboken, USA John Wiley & Sons, Inc 01.09.2023
Blackwell Publishing Ltd
Témata:
Bleaching
Canine teeth
Color
color science
dental materials
Incisors
prospective study
Smoking
tooth bleaching
tooth bleaching
prospective study
dental materials
smoking
color science
ISSN:1496-4155, 1708-8240, 1708-8240
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Shrnutí:Objectives To evaluate the effect of smoking on tooth whitening and color change after at‐home bleaching. Materials and Methods This prospective clinical study evaluated two groups of participants: 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. Clinical Significance Although smoking negatively affected color stability after bleaching, the observed changes were clinically acceptable.
Bibliografie:ObjectType-Article-1
SourceType-Scholarly Journals-1
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ISSN:1496-4155
1708-8240
1708-8240
DOI:10.1111/jerd.13040