Marouane Omar, Manton David John, Cebula Marcus, Schwendicke Falk, Effenberger Susanne
Oralys Dental Clinic, Rue de la Feuille d'Érable, Les Berges du Lac, 1053, Tunis, Tunisia.
University of Groningen, UMCG, Center for Dentistry and Oral Hygiene, Hanzeplein1, 9713, Groningen, The Netherlands.
J Dent. 2025 Feb;153:105554. doi: 10.1016/j.jdent.2024.105554. Epub 2024 Dec 31.
Success of resin infiltration for the masking of MIH-lesions remains difficult to predict, prompting suggestions to adjust the treatment protocol. This exploratory in vivo study aims to evaluate whether monitoring the resin infiltration process using transmitted light, compared to ambient light, enables a better estimation of when the infiltration process is completed, and to assess how the treatment success, i.e. masking effect and infiltration proportion, is influenced accordingly.
15 patients with 19 MIH-lesions, diagnosed according to EAPD diagnostic criteria, were enrolled. MIH-lesions were randomly assigned to two treatment groups. In one group resin infiltration progression was monitored under transmitted light, whereas in the second group ambient light was used, representing the standard procedure. Pictures were taken before infiltration and when progression became evident until infiltration was judged to be completed. Infiltration proportion and color difference between the opacity and surrounding sound enamel were calculated and analyzed using the independent-sample t-test with a level of significance of p < 0.05.
Compared to the ambient light group, the transmitted light group showed a significantly higher infiltration time (17.7 ± 8.2 min vs. 9.3 ± 1.6 min); a significantly higher mean infiltration proportion (97.6 ± 2.8% vs. 83.9 ± 9.7%) and a significantly better masking effect (i.e. lower mean color difference (∆E) between effected and sound enamel: 4.5 ± 2.4 vs. 7.5 ± 3.3).
Transillumination-guided resin infiltration required prolonged infiltration time but led to an increased infiltration proportion and improved masking effects.
Transillumination guided resin infiltration enables a more accurate judgement as to when the infiltration process has been completed, which leads, through extension of the infiltration time, to a significantly higher mean infiltration proportion and provides favorable esthetic outcomes.
树脂浸润用于掩盖乳牙釉质发育不全（MIH）病变的成功率仍难以预测，这促使人们建议调整治疗方案。这项探索性的体内研究旨在评估与环境光相比，使用透射光监测树脂浸润过程是否能更好地估计浸润过程何时完成，并评估相应地治疗成功率，即掩盖效果和浸润比例，会受到怎样的影响。
纳入15例根据欧洲儿科牙科学会（EAPD）诊断标准诊断为患有19处MIH病变的患者。将MIH病变随机分为两个治疗组。一组在透射光下监测树脂浸润进展，而另一组使用环境光，这代表标准程序。在浸润前以及进展明显时直至判断浸润完成时拍照。计算浸润比例以及不透明区与周围健康釉质之间的色差，并使用独立样本t检验进行分析，显著性水平为p < 0.05。
与环境光组相比，透射光组的浸润时间显著更长（17.7 ± 8.2分钟对9.3 ± 1.6分钟）；平均浸润比例显著更高（97.6 ± 2.8%对83.9 ± 9.7%），并且掩盖效果显著更好（即患牙与健康釉质之间的平均色差更低：4.5 ± 2.4对7.5 ± 3.3）。
透照引导下的树脂浸润需要更长的浸润时间，但会导致浸润比例增加且掩盖效果改善。
透照引导下的树脂浸润能够更准确地判断浸润过程何时完成，通过延长浸润时间，这会导致平均浸润比例显著更高，并提供良好的美学效果。
