99m Tc in the evaluation of microleakage of composite resin restorations with SonicFill TM . An in vitro experimental model
99m Tc in the evaluation of microleakage of composite resin restorations with SonicFill TM . An in vitro experimental model
复制标题
99m Tc 使用 SonicFill TM 评估复合树脂修复体的微渗漏。
DOI：
10.4236/ojst.2012.24058
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
F. Marques
中科院分区：
文献类型：
--
作者：
Carrilho Eunice;A. Margarida;Casalta;Botelho Maria Filomena;Paula Anabela;A. Pedro;M. C. Miguel;R. Diana;M. Joana;Polido Mário;F. Marques
简介：复合材料SonicFillTM （Kerr/Kavo）适用于后牙修复，由于减少了聚合收缩，单次增量可达5mm，从而减少了工作时间。目的：应用SonicFillTM评价边缘微漏。方法与材料：在咬合-颈椎方向对60颗无龋齿的人磨牙进行切片。按照标准方法在每颗牙的龈缘壁上制备V类空腔。将标本分为4组：1组用SonicFillTM （Kerr/Kavo）修复，2组用FiltekTM SupremeXTE （3M ESPE）修复，3组不修复龋洞；第4组采用SonicFillTM （Kerr/Kavo）修复。在第1、2和4组中，牙釉质用37%的正磷酸处理，并应用自蚀刻胶系统Clear- fillTM SE BOND （Kuraray）。标本保存在37℃蒸馏水中。C 7天。之后，将标本浸泡在99mtc -高锝酸盐溶液中，用伽马照相机评估其放射性。统计分析采用非参数Kruskal-Wallis和Mann-Whitney检验，Bonferroni校正显著性水平为5%。结果：阳性对照组与阴性对照组之间、阳性对照组与实验组（p TM、FiltekTM SupremeXTE）之间存在显著差异。结论：新型复合材料SonicFillTM与FiltekTM SupremeXTE在染料穿透性方面无显著差异。超声填充修复系统对微渗漏无明显影响。
Introduction: The composite SonicFillTM (Kerr/Kavo) is indicated for posterior restorations, with a single increment up to 5 mm due to reduced polymerization shrinkage, thus reducing working time. Aim: Evaluation of marginal microleakage with SonicFillTM. Method and Materials: There were sectioned sixty noncarious human molars in the occluso-cervical direction. Class V cavities were prepared on each tooth with gingival margin walls in a standardized way. The specimens were divided into 4 groups: group 1—restored with SonicFillTM (Kerr/Kavo), group 2—restored with FiltekTM SupremeXTE (3M ESPE), group 3—the cavities were not restored; group 4—restored with SonicFillTM (Kerr/Kavo). In groups 1, 2 and 4 the enamel was conditioned with 37% orthophosphoric acid and applied the self-etch adhesive system Clear- fillTM SE BOND (Kuraray). The specimens were stored in distilled water at 37?C for 7 days. After, the specimens, were immersed in a solution of 99mTc-Pertechnetate and the radioactivity was assessed with a gamma camera. The nonparametric Kruskal-Wallis and Mann-Whitney test with Bonferroni correction at a significance level of 5% were used for the statistical analyses. Results: There are significant differences between the positive and negative control groups and between these and experimental groups (p TM and FiltekTM SupremeXTE. Conclusion: The new composite SonicFillTM and FiltekTM SupremeXTE showed no difference concerning dye penetration. The Sonic- FillTM restorative system showed no influence in concerning microleakage.