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CC BY 4.0 · Eur J Dent 2023; 17(03): 828-833
DOI: 10.1055/s-0042-1756689
Original Article

Methylene Blue Penetration of Resin Infiltration and Resin Sealant in Artificial White-Spot Lesions

Awiruth Klaisiri 
1   Division of Restorative Dentistry, Faculty of Dentistry, Thammasat University, Pathumthani, Thailand
2   Thammasat University Research Unit in Restorative and Esthetic Dentistry, Thammasat University, Pathumthani, Thailand
,
Jarukit Vongsang
3   Faculty of Dentistry, Thammasat University, Pathumthani, Thailand
,
Thanach leelaudom
3   Faculty of Dentistry, Thammasat University, Pathumthani, Thailand
,
Nantawan Krajangta
1   Division of Restorative Dentistry, Faculty of Dentistry, Thammasat University, Pathumthani, Thailand
2   Thammasat University Research Unit in Restorative and Esthetic Dentistry, Thammasat University, Pathumthani, Thailand
› Institutsangaben
Funding This study was funded and supported by the Faculty of Dentistry Research Fund and Thammasat University Research Unit in Restorative and Esthetic Dentistry, Thammasat University, Pathumthani, Thailand.
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Abstract

Objective This study determined the potency of resin infiltrations and resin sealant in impeding microleakage on artificial white-spot lesions (AWL) by methylene blue penetration.

Materials and Methods Eighty AWL specimens were randomly separated into two groups for water storage for 24 hours (groups 1–4) and 20,000 cycles of thermocycling (TC) (groups 5–8). Each group was then separated into four subgroups (n = 10) based on the AWL surface treatments: (1) no Tx, (2) treated with resin infiltration (ICON, DMG, Hamburg, Germany), (3) treated with resin infiltration (Surface pre-reacted glass-ionomer (S-PRG) barrier coat, SHOFU, Kyoto, Japan), (4) treated with resin sealant (Clinpro sealant, 3M ESPE, Minnesota, United States). Nail varnish was covered to all samples, with the exception of a 4 × 4 mm2 patch on the buccal measurement region, which was subsequently submerged in a 2% methylene blue solution and cut into buccolingual sections. Stereomicroscope measurements were used to calculate methylene blue penetration scores.

Statistical Analysis The Kruskal–Wallis test and the Bonferroni post-hoc correction were performed to evaluate the data.

Results Application of resin infiltrants and resin sealant reduced microleakage in AWL by methylene penetration both before and after thermal cycling. In addition, group 6 (ICON + TC) and group 7 (S-PRG + TC) had a significantly different value from group 8 (sealant + TC).

Conclusion Both the resin infiltration approach and the resin sealant seem to help seal AWL and might perhaps offer long-term defense against microleakage in AWL caused by methylene blue penetration. The greatest sealing and defense for microleakage in AWL were demonstrated by the resin infiltrations.

Keywords

methylene blue - microleakage - resin infiltration - resin sealant - white-spot lesion


Publikationsverlauf

Artikel online veröffentlicht:
11. Oktober 2022

© 2022. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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