Gunasekaran Rajasekar, Sharmin Ditto, Baghkomeh Parisa N, Jaganathan Gayathri, Ravindran Vignesh
Department of Pedodontics and Preventive Dentistry, Saveetha Dental College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu, India.
Department of Pediatric and Preventive Dentistry, Sri Venkateswara Dental College and Hospital, Vels University, Kancheepuram, Tamil Nadu, India.
Int J Clin Pediatr Dent. 2024 Jan;17(1):31-35. doi: 10.5005/jp-journals-10005-2726.
The role of sealants for pits and fissures has been emphasized in caries prevention. Considering the advantages of a surface sealer and the effects of its application over restorative materials; the study is aimed at evaluating two pit and fissure sealants with a nanofilled resin coating.
In this double-blinded study, a total of 60 caries-free extracted third molars were collected and divided into two groups of 30 each receiving either a resin-based sealant (Helioseal F) or a glass ionomer-based sealant (GC Fuji VII). Each sample was then applied with GCoat Plus surface sealer. 15 samples each containing GC Fuji VII and 15 containing Helioseal F were then subjected to wear. Another 15 samples of GC Fuji VII and 15 of Helioseal F were subjected to compressive load.
On assessing the wear strength, the weight loss in group I (resin sealant with surface sealer) was 1.73 ± 0.50 (μg) which was statistically significant ( = 0.023). There was no significant difference in comparing the wear depth between both groups. There was a high statistically significant difference when assessing the compressive strength, group II (glass ionomer sealant with surface sealer) had 3566.4 ± 757 (μm) when compared to group I (resin sealant with surface sealer) 1568.53 ± 680 ( ≤ 0.01).
Sealants are known for their poor retention and keeping that in mind we designed this study to evaluate the physical properties of sealants with a resin coating over them. Within the limitations of this study, the conclusions are glass ionomer sealant showed greater resistance to wear when compared to the resin-based sealant and the resin-based sealant showed higher compressive strength values than the glass ionomer sealant.
Gunasekaran R, Sharmin D, Baghkomeh PN, Comparative Evaluation of Wear Strength and Compressive Strength of Two Pit and Fissure Sealants with a Nanofilled Resin Coating: An Study. Int J Clin Pediatr Dent 2024;17(1):31-35.
窝沟封闭剂在预防龋齿方面的作用已得到强调。考虑到表面封闭剂的优势及其应用于修复材料的效果，本研究旨在评估两种带有纳米填充树脂涂层的窝沟封闭剂。
在这项双盲研究中，共收集60颗无龋的拔除第三磨牙，并分为两组，每组30颗，分别接受树脂基封闭剂（Helioseal F）或玻璃离子基封闭剂（GC Fuji VII）。然后给每个样本涂抹GCoat Plus表面封闭剂。接着，对各含15个GC Fuji VII样本和15个含Helioseal F样本进行磨损测试。另外，对15个GC Fuji VII样本和15个Helioseal F样本施加压缩载荷。
在评估磨损强度时，第一组（带有表面封闭剂的树脂封闭剂）的重量损失为1.73±0.50（μg），具有统计学意义（P = 0.023）。两组之间的磨损深度比较无显著差异。在评估抗压强度时，存在高度统计学差异，第二组（带有表面封闭剂的玻璃离子封闭剂）为3566.4±757（μm），而第一组（带有表面封闭剂的树脂封闭剂）为1568.53±680（P≤0.01）。
封闭剂因其固位性差而闻名，考虑到这一点，我们设计了本研究来评估带有树脂涂层的封闭剂的物理性能。在本研究的局限性范围内，结论是玻璃离子封闭剂与树脂基封闭剂相比显示出更强的耐磨性，而树脂基封闭剂的抗压强度值高于玻璃离子封闭剂。
Gunasekaran R, Sharmin D, Baghkomeh PN, 两种带有纳米填充树脂涂层的窝沟封闭剂的磨损强度和抗压强度的比较评估：一项研究。《国际临床儿科牙科学杂志》2024；17(1):31 - 35。
