Department of Dentistry, Ponta Grossa State University (UEPG), Ponta Grossa, PR, Brazil.
Gerodontology. 2010 Sep;27(3):230-5. doi: 10.1111/j.1741-2358.2009.00312.x. Epub 2009 Jun 25.
This study evaluated the effect of post-polymerisation treatments on the glass transition temperature (T(g)) of five hard chairside reline materials (Duraliner II-D, Kooliner-K, New Truliner-N, Ufi Gel hard-U and Tokuso Rebase Fast-T).
Specimens (10 x 10 x 1 mm) were made following the manufacturers' instructions and divided into three groups (n = 5). Control group specimens were left untreated. Specimens from the microwave group were irradiated with pre-determined power/time combinations, and specimens from the water-bath group were immersed in hot water at 55 degrees C for 10 min. Glass transition ( degrees C) was performed by differential scanning calorimetry. Data were analysed using anova, followed by post hoc Tukey's test (alpha = 0.05).
Both post-polymerisation treatments promoted a significant (p < 0.05) increase in the T(g) of reline material K. Materials K, D and N showed the lowest T(g) (p < 0.05). No significant difference between T and U specimens was observed.
Post-polymerisation treatments improved the glass transition of material Kooliner, with the effect being more pronounced for microwave irradiation.
本研究评估了后聚合处理对五种硬式椅旁衬垫材料（Duraliner II-D、Kooliner-K、New Truliner-N、Ufi Gel hard-U 和 Tokuso Rebase Fast-T）玻璃化转变温度（T(g)）的影响。
按照制造商的说明制作（10 x 10 x 1 毫米）试件，并将其分为三组（n = 5）。对照组试件未经处理。微波组试件用预定的功率/时间组合进行辐照，水浴组试件在 55°C 的热水中浸泡 10 分钟。通过差示扫描量热法进行玻璃化转变（摄氏度）。使用方差分析对数据进行分析，然后进行事后 Tukey 检验（alpha = 0.05）。
两种后聚合处理均显著（p < 0.05）提高了衬垫材料 K 的 T(g)。材料 K、D 和 N 的 T(g)最低（p < 0.05）。T 和 U 试件之间无显著差异。
后聚合处理提高了 Kooliner 材料的玻璃化转变温度，微波辐射的效果更为明显。
