Universität zu Köln

Schoppmeier, Christoph Matthias ORCID: 0000-0002-3269-8920, von Kohout, Max ORCID: 0009-0006-7390-1557, Sun, Li ORCID: 0009-0002-7251-7976, Janson, Malin ORCID: 0009-0006-6486-6825, Deeg, Isabel ORCID: 0000-0003-0306-5873, Barbe, Anna Greta ORCID: 0000-0003-0169-2582 and Wicht, Michael Jochen ORCID: 0000-0003-4693-7184 (2025). Influence of home or in-office tooth bleaching on the color stability of white-spot lesions after resin infiltration. The Journal of the American Dental Association, 156 (7). 517-529.e3. Elsevier. ISSN 00028177

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Abstract

Background: The authors investigated the color stability of resin-infiltrated white-spot lesions (WSL) after in-office tooth bleaching (IB) or home tooth bleaching (HB) and assessed the potential for staining and rebleaching. Methods: Sixty caries-free third molars were demineralized to create WSLs and then divided into 4 groups: (1) no treatment (control) group; (2) demineralization plus resin infiltration group; (3) demineralization plus resin infiltration plus IB group; (4) and demineralization plus resin infiltration plus HB group. After exposure to coffee solution to simulate 12-month staining potential, a second bleaching procedure was performed. Color measurements were obtained at 10 defined time points using standardized digital imaging and analyzed in the Commission Internationale de l’Eclairage-L∗a∗b∗ (lightness, red-green axis, yellow-blue axis) color space. To precisely document color changes, time points included baseline, after WSL creation, after resin infiltration, after bleaching procedures, after thermocycling (aging), after coffee exposure, and after rebleaching. Results: No significant differences in bleaching effectiveness were observed between IB and HB after initial (P=.127) or subsequent (P=.111) bleaching. Similarly, there were no significant differences (P=.867) in staining potential between the IB and HB groups after 12 days. Both bleaching methods restored the WSL color close to the baseline after staining. Conclusions. Both IB and HB restored the color of resin-infiltrated WSLs to near-baseline levels after staining in vitro, with no significant differences between the 2 methods. Although results of the treatments showed responsiveness to whitening protocols, color stability under staining conditions remained limited, highlighting the need for further investigation into long-term maintenance strategies. Practical implications: Both IB and HB approaches may be clinically viable for maintaining the esthetic stability of treated WSLs over time once sufficient evidence from clinical studies becomes available.

Item Type:	Article
Creators:	Creators Email ORCID ORCID Put Code Schoppmeier, Christoph Matthias UNSPECIFIED https://orcid.org/0000-0002-3269-8920 UNSPECIFIED von Kohout, Max UNSPECIFIED https://orcid.org/0009-0006-7390-1557 UNSPECIFIED Sun, Li UNSPECIFIED https://orcid.org/0009-0002-7251-7976 UNSPECIFIED Janson, Malin UNSPECIFIED https://orcid.org/0009-0006-6486-6825 UNSPECIFIED Deeg, Isabel UNSPECIFIED https://orcid.org/0000-0003-0306-5873 UNSPECIFIED Barbe, Anna Greta UNSPECIFIED https://orcid.org/0000-0003-0169-2582 UNSPECIFIED Wicht, Michael Jochen UNSPECIFIED https://orcid.org/0000-0003-4693-7184 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-803690
Identification Number:	10.1016/j.adaj.2025.04.009
Journal or Publication Title:	The Journal of the American Dental Association
Volume:	156
Number:	7
Page Range:	517-529.e3
Number of Pages:	16
Date:	July 2025
Publisher:	Elsevier
ISSN:	00028177
Language:	English
Faculty:	Faculty of Medicine
Divisions:	Faculty of Medicine > Medizinische Statistik und Bioinformatik Faculty of Medicine > Zahn-, Mund- und Kieferheilkunde > Klinik und Poliklinik für Mund-, Kiefer- und Plastische Gesichtschirurgie und Interdisziplinäre Klinik für Orale Chirurgie und Implantologie
Subjects:	Medical sciences Medicine
Uncontrolled Keywords:	Keywords Language Color stability ; home bleaching ; in-office bleaching ; resin infiltration ; white-spot lesions English
['eprint_fieldname_oa_funders' not defined]:	Publikationsfonds UzK
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/80369