The Staining Susceptibility and Surface Roughness of Teeth Restored by Microabrasion and Resin Infiltration: An In Vitro Study

被引：1
作者：
Inna, Treetossatep [1 ]
Krajangta, Nantawan [1 ]
Rakmanee, Thanasak [1 ]
机构：
[1] Department of Restorative Dentistry, Faculty of Dentistry, Thammasat University, 99 M. 18, Paholyothin Road, Klong Luang
来源：
Polymers | 2024年 / 16卷 / 24期
关键词：
microabrasion; resin infiltration; spectrophotometer; staining; surface roughness; thermocycling;
D O I：
10.3390/polym16243523
中图分类号：
学科分类号：
摘要：
This study assessed the susceptibility to staining and surface roughness of white-spot lesions (WSLs) treated with resin infiltration (RIT) and microabrasion (MA) under simulated aging through thermocycling in red wine. Seventy-eight extracted human premolars with artificial WSLs were divided into three groups: untreated WSLs (control), RIT-treated (ICON®, DMG), and MA-treated (Opalustre®, Ultradent). Each group was further split: one subgroup immersed in artificial saliva and the other thermocycled in red wine. The color change (∆E) and surface roughness (Ra) were measured before and after staining using a spectrophotometer and a non-contact profilometer. Thermocycling in red wine increased color change (ΔE) across all groups, with the highest values observed for MA (43.94 ± 3.57), followed by RIT (31.40 ± 4.89). Surface roughness (Ra) was highest in untreated WSLs (0.61 ± 0.18 µm) and lowest in RIT (0.15 ± 0.03 µm). While RIT and MA similarly improved WSL appearance, RIT exhibited superior smoothness. These findings suggest that RIT provides a more durable surface with reduced roughness, although staining susceptibility remains comparable to MA. Moderate positive correlation was found between ΔE and Ra, indicating that roughness is one of the factors influencing color changes. © 2024 by the authors.
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