Jabbour Zaher, Esmaeili Maryam, Hayashi Marc, Kim Reuben
Restorative Materials Research Laboratory, Section of Restorative Dentistry, School of Dentistry, University of California, Los Angeles, CA 90095, USA.
Dent J (Basel). 2022 Aug 9;10(8):149. doi: 10.3390/dj10080149.
Silver diamine fluoride (SDF) is radiopaque. This in vitro study compares the changes in the radiopacity of carious lesions after SDF application, potassium iodide (PI) application, and water rinse. Ten recently extracted human teeth were sectioned and divided into two groups (n = 10 in each group): Group 1 = SDF, Group 2 = SDF + PI. Teeth in Group 1 received SDF for 1 min and rinsed with 15 mL water. Group 2 received the same protocol with the addition of PI application for 1 min after SDF application. All samples were scanned with micro-computed tomography before SDF application, after SDF application, after PI application (group 2) and after water rinse. The radiopacity of the carious lesions increased significantly after SDF application in Group 1 and 2 (p < 0.017, p < 0.008, respectively). A significant increase in radiopacity after PI application was also observed in Group 2 (p < 0.008). Water rinsing significantly decreased the radiopacity in Group 1 and 2 (p < 0.017, p < 0.008, respectively), but the radiopacity remained significantly higher than the preoperative values (Group 1 p < 0.017, Group 2 p < 0.008). The radiopacity of carious lesions increases after SDF and SDF + PI applications. Water rinsing could reduce the radiopacity of SDF and SDF + PI treated carious lesions, and might reduce the content of SDF in carious lesions.
氟化亚锡（SDF）是不透射线的。这项体外研究比较了应用SDF、碘化钾（PI）和清水冲洗后龋损的射线不透性变化。将十颗近期拔除的人牙进行切片并分为两组（每组n = 10）：第1组 = SDF组，第2组 = SDF + PI组。第1组的牙齿接受SDF处理1分钟，然后用15毫升水冲洗。第2组接受相同方案，但在应用SDF后额外应用PI 1分钟。所有样本在应用SDF前、应用SDF后、应用PI后（第2组）以及清水冲洗后均用微型计算机断层扫描进行扫描。第1组和第2组在应用SDF后龋损的射线不透性显著增加（分别为p < 0.017，p < 0.008）。第2组在应用PI后射线不透性也显著增加（p < 0.008）。清水冲洗使第1组和第2组的射线不透性显著降低（分别为p < 0.017，p < 0.008），但射线不透性仍显著高于术前值（第1组p < 0.017，第2组p < 0.008）。应用SDF和SDF + PI后龋损的射线不透性增加。清水冲洗可降低经SDF和SDF + PI处理的龋损的射线不透性，并可能降低龋损中SDF的含量。
