Ferreira Fernanda de Morais, do Vale Miriam Pimenta Parreira, Jansen Wellington Corrêa, Paiva Saul Martins, Pordeus Isabela Almeida
Department of Pediatric Dentistry, Dental School, University of São Paulo (FO-USP), São Paulo, SP, Brazil.
J Appl Oral Sci. 2006 Oct;14(5):312-8. doi: 10.1590/s1678-77572006000500003.
With the aim of assessing the performance of Brazilian and imported glass ionomer cements (GIC) with regard to microleakage, 40 primary molars received two standard class II cavity preparations with margins in enamel. Twenty cavities were filled with Brazilian materials (Vidrion R and Vidrion R(Caps)) and the other 20 cavities were filled with imported materials (Fuji IX and Fuji IX(GPFast) capsule). All fillings were performed by a single operator according to the manufacturer's instructions. Teeth were immersed in 0.5% methylene blue and half-sectioned. Three independent calibrated examiners assessed microleakage using scores (0-3). Data were submitted to the Kruskal-Wallis statistical test and Wilcoxon analysis. High microleakage indexes were verified for all ionomer cements: 59.5% of the samples restored with Vidrion R or Vidrion R(Caps) and 83.4% of the samples restored with Fuji IX or Fuji IX(GPFast) capsule obtained the maximum score (3). The Brazilian ionomer cements presented less microleakage than imported cements, although this difference was only significant (p=0.003) among the encapsulated materials.
为了评估巴西产和进口玻璃离子水门汀（GIC）在微渗漏方面的性能，40颗乳牙制备了两个标准的Ⅱ类洞，洞缘位于牙釉质。20个洞用巴西材料（Vidrion R和Vidrion R（Caps））充填，另外20个洞用进口材料（Fuji IX和Fuji IX（GPFast）胶囊）充填。所有充填均由一名操作人员按照制造商的说明进行。将牙齿浸泡在0.5%的亚甲蓝中并切成两半。三名独立校准的检查人员使用评分（0 - 3）评估微渗漏情况。数据进行Kruskal - Wallis统计检验和Wilcoxon分析。所有离子水门汀均显示出高微渗漏指数：用Vidrion R或Vidrion R（Caps）修复的样本中有59.5%，用Fuji IX或Fuji IX（GPFast）胶囊修复的样本中有83.4%获得了最高分（3分）。巴西离子水门汀的微渗漏比进口水门汀少，尽管这种差异仅在胶囊装材料中具有统计学意义（p = 0.003）。
