Hammad Shaza M, El-Wassefy Noha A, Alsayed Mohamed A
Mansoura University, Faculty of Dentistry, Department of Orthodontics (Mansoura, Egypt).
Mansoura University, Faculty of Dentistry, Department of Dental Biomaterials (Mansoura, Egypt).
Dental Press J Orthod. 2020 Jan-Feb;25(1):26-27. doi: 10.1590/2177-6709.25.1.27.e1-7.onl.
To qualitatively and quantitatively assess the color changes effect and the color stability of the resin infiltrant on white spot lesions (WSLs), in comparison with nano-hydroxyapatite (nano-HA) toothpaste and microabrasion.
WSLs were artificially created on sixty human premolars enamel surfaces and randomly assigned to equal four groups (n = 15 each): nano-HA toothpaste, microabrasion (Opalusture), resin infiltrant (Icon) treatment, or artificial saliva (control group). The color change (ΔE) of each specimen was measured by dental spectrophotometer (Vita Easyshade) at different time points: baseline, after WSLs' creation, after application of treatments, one month, three and six months after treatments application.
The ΔE value did not differ significantly for the four groups at baseline measurement before treatment (p> 0.05). Icon resin infiltrant improved the color of WSLs significantly immediately after its application, giving the lowest ΔE value (3.00 ± 0.59), when compared to other treatments (p< 0.001). There were no significant changes in ΔE (p> 0.05) for all groups during the follow up intervals (one month, three and six months after treatments application).
Resin infiltrant can improve the color of WSLs and restore the natural appearance of enamel better than nano-HA toothpaste and microabrasion.
与纳米羟基磷灰石（nano-HA）牙膏和微打磨相比，定性和定量评估树脂浸润剂对白斑病变（WSLs）的颜色变化效果和颜色稳定性。
在60颗人类前磨牙牙釉质表面人工制造白斑病变，并随机分为四组（每组n = 15）：纳米羟基磷灰石牙膏组、微打磨（Opalusture）组、树脂浸润剂（Icon）治疗组或人工唾液组（对照组）。在不同时间点用牙科分光光度计（Vita Easyshade）测量每个标本的颜色变化（ΔE）：基线、白斑病变形成后、治疗应用后、治疗应用后1个月、3个月和6个月。
治疗前基线测量时，四组的ΔE值无显著差异（p > 0.05）。与其他治疗相比，Icon树脂浸润剂应用后立即显著改善了白斑病变的颜色，ΔE值最低（3.00±0.59）（p < 0.001）。在随访期间（治疗应用后1个月、3个月和6个月），所有组的ΔE均无显著变化（p > 0.05）。
与纳米羟基磷灰石牙膏和微打磨相比，树脂浸润剂能更好地改善白斑病变的颜色，恢复牙釉质的自然外观。
