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研究浸在异丁基甲基丙烯酸酯和 2-羟乙基甲基丙烯酸酯中的硅橡胶基软衬材料与义齿基托的黏附性能。

Investigation of bonding properties of denture bases to silicone-based soft denture liner immersed in isobutyl methacrylate and 2-hydroxyethyl methacrylate.

机构信息

Department of Prosthodontics, Faculty of Dentistry, Cumhuriyet University, Sivas, Turkey.

出版信息

J Adv Prosthodont. 2014 Apr;6(2):121-5. doi: 10.4047/jap.2014.6.2.121. Epub 2014 Apr 22.

DOI:10.4047/jap.2014.6.2.121
PMID:24843397
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC4024556/
Abstract

PURPOSE

The purpose of this study was to investigate the bonding properties of denture bases to silicone-based soft denture liners immersed in isobutyl methacrylate (iBMA) and 2-hydroxyethyl methacrylate (HEMA) for various lengths of time.

MATERIALS AND METHODS

Polymethyl methacrylate (PMMA) test specimens were fabricated (75 mm in length, 12 mm in diameter at the thickest section, and 7 mm at the thinnest section) and then randomly assigned to five groups (n=15); untreated (Group 1), resilient liner immersed in iBMA for 1 minute (Group 2), resilient liner immersed in iBMA for 3 minutes (Group 3), resilient liner immersed in HEMA for 1 minute (Group 4), and resilient liner immersed in HEMA for 3 minutes (Group 5). The resilient liner specimens were processed between 2 PMMA blocks. Bonding strength of the liners to PMMA was compared by tensile test with a universal testing machine at a crosshead speed of 5 mm/min. Data were evaluated by 1-way ANOVA and post hoc Tukey-Kramer multiple comparisons tests (α=0.05).

RESULTS

The highest mean value of force was observed in Group 3 specimens. The differences between groups were statistically significant (P<.05), except between Group 1 and Group 4 (P=.063).

CONCLUSION

Immersion of silicone-based soft denture liners in iBMA for 3 minutes doubled the tensile bond strength between the silicone soft liner and PMMA denture base materials compared to the control group.

摘要

目的

本研究旨在研究义齿基托与浸入异丁基甲基丙烯酸酯（iBMA）和 2-羟乙基甲基丙烯酸酯（HEMA）中的硅橡胶基软衬料的粘结性能，浸泡时间不同。

材料和方法

制备聚甲基丙烯酸甲酯（PMMA）试件（长 75mm，最厚处直径 12mm，最薄处直径 7mm），然后随机分为五组（n=15）；未处理组（第 1 组）、弹性衬垫浸入 iBMA 1 分钟（第 2 组）、弹性衬垫浸入 iBMA 3 分钟（第 3 组）、弹性衬垫浸入 HEMA 1 分钟（第 4 组）和弹性衬垫浸入 HEMA 3 分钟（第 5 组）。将弹性衬垫试件在 2 块 PMMA 块之间加工。用万能试验机以 5mm/min 的十字头速度进行拉伸试验，比较衬垫与 PMMA 的粘结强度。采用单因素方差分析和事后 Tukey-Kramer 多重比较检验（α=0.05）对数据进行评估。

结果

第 3 组试件的平均力值最高。组间差异有统计学意义（P<.05），除第 1 组和第 4 组（P=.063）外。

结论

与对照组相比，硅橡胶基软衬料浸入 iBMA 3 分钟可使硅橡胶软衬料与 PMMA 义齿基托材料之间的拉伸粘结强度增加一倍。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/db6c7ec93d05/jap-6-121-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/5a54959bfa68/jap-6-121-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/bb2603fd4006/jap-6-121-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/eae8ea123b8d/jap-6-121-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/58f2691df793/jap-6-121-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/db6c7ec93d05/jap-6-121-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/5a54959bfa68/jap-6-121-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/bb2603fd4006/jap-6-121-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/eae8ea123b8d/jap-6-121-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/58f2691df793/jap-6-121-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/d517/4024556/db6c7ec93d05/jap-6-121-g005.jpg

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