铒铬：钇钪镓石榴石激光照射联合氟化物应用对控制牙釉质侵蚀进展的影响。
The effects of combining erbium, chromium: Yttrium-scandium-gallium-garnet laser irradiation with fluoride application in controlling the progression of enamel erosion.
作者信息
AlShamrani Ahoud, AlHabdan Alhanouf, AlDaweesh Malak, Bin Hamdan Rahaf, AlRajhi Randa
机构信息
Department of Restorative Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
出版信息
Saudi Dent J. 2021 Dec;33(8):1126-1132. doi: 10.1016/j.sdentj.2021.03.004. Epub 2021 Mar 25.
OBJECTIVE
Increasing enamel resistance to acid may be useful for preventing cavitation and could reduce changes in the enamel's microhardness. Topical fluoride application and laser irradiation promote acid resistance of dental substrates. The aim of the study was to assess the efficacy of erbium, chromium: yttrium-scandium-gallium-garnet laser irradiation in combination with fluoride application to control enamel erosion.
DESIGN
Sixty human premolar specimens were prepared (N = 60) and were randomly assigned to 5 groups, twelve specimens in each group (n = 12/group) according to surface treatment. The groups were as follows: group 1 (C): control with no treatment; group 2 (F): application of 1.23% acidulated phosphate fluoride gel alone; group 3 (L): laser irradiation alone; group 4 (F+L): acidulated phosphate fluoride gel followed by laser irradiation; group 5 (L+F): laser irradiation followed by acidulated phosphate fluoride gel. All the specimens were eroded 10 min in citric acid. Baseline measurements were performed using a Vickers microhardness tester before surface treatment. Subsequently, all specimens were subjected to a 60 min erosion-remineralization cycle for five days followed by measurements of the final surface microhardness. Statistical comparisons were performed by a one-way analysis of variance and Tukey's analysis.
RESULTS
The control, laser, and fluoride + laser groups showed a statistically significant decrease in microhardness values between baseline and post-erosion measurements (P < 0.05), indicating that these treatments could not prevent erosion progression. However, the fluoride and laser + fluoride groups showed a significant increase in microhardness values compared to baseline.
CONCLUSIONS
Our results suggest that compared to that of the control group, acidulated phosphate fluoride application as well as laser irradiation prior to fluoride application increased enamel surface microhardness and prevented the progression of enamel erosion.
目的
提高牙釉质的抗酸性可能有助于预防牙釉质龋洞形成，并能减少牙釉质显微硬度的变化。局部应用氟化物和激光照射可增强牙齿基质的抗酸性。本研究旨在评估铒铬：钇钪镓石榴石激光照射联合氟化物应用对控制牙釉质侵蚀的效果。
设计
制备60颗人前磨牙标本（N = 60），根据表面处理方法随机分为5组，每组12个标本（n = 12/组）。分组如下：第1组（C）：未处理的对照组；第2组（F）：单独应用1.23% 酸蚀处理的磷酸氟凝胶；第3组（L）：单独进行激光照射；第4组（F+L）：先应用酸蚀处理的磷酸氟凝胶，再进行激光照射；第5组（L+F）：先进行激光照射，再应用酸蚀处理的磷酸氟凝胶。所有标本在柠檬酸中侵蚀10分钟。在表面处理前使用维氏显微硬度测试仪进行基线测量。随后，所有标本进行为期5天、每天60分钟的侵蚀 - 再矿化循环，之后测量最终表面显微硬度。采用单因素方差分析和Tukey分析进行统计学比较。
结果
对照组、激光组以及氟化物 + 激光组在基线测量和侵蚀后测量之间的显微硬度值有统计学显著下降（P < 0.05），表明这些处理不能阻止侵蚀进展。然而，氟化物组和激光 + 氟化物组与基线相比，显微硬度值有显著增加。
结论
我们的结果表明，与对照组相比，应用酸蚀处理的磷酸氟以及在应用氟化物之前进行激光照射可提高牙釉质表面显微硬度，并阻止牙釉质侵蚀进展。
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