Wyszyńska Magdalena, Białożyt-Bujak Ewa, Chladek Grzegorz, Czelakowska Aleksandra, Rój Rafał, Białożyt Agata, Gruca Olaf, Nitsze-Wierzba Monika, Kasperski Jacek, Skucha-Nowak Małgorzata
Unit of Dental Material Sciences, Department/Institute of Prosthetic Dentistry and Dental Material Sciences, Medical University of Silesia in Katowice, 15 Poniatowskiego Street, 40-055 Katowice, Poland.
Department of Engineering Materials and Biomaterials, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A Street, 44-100 Gliwice, Poland.
Materials (Basel). 2021 Nov 14;14(22):6868. doi: 10.3390/ma14226868.
Abrasions and pressure ulcers on the oral mucosa are most often caused by excessive pressure or incorrect fitting of the denture. The use of soft relining materials can eliminate pain sensations and improve patient comfort. The main functional feature of soft elastomeric materials is the ability to discharge loads from the tissues of the mucosa. (1) Background: The aim of the work was a comparative laboratory study of ten materials used for the soft lining of acrylic dentures. (2) Methods: There were materials based on acrylates (Vertex Soft, Villacryl Soft, Flexacryl Soft) and silicones (Sofreliner Tough Medium, Sofreliner Tough Medium, Ufi Gel SC, GC Reline Soft, Elite Soft Relining, Molloplast). Laboratory tests include the analysis of the tensile bond strength between the relining material and the acrylic plate of the prosthesis. The tests were conducted taking into account 90-day term aging in the distilled water environment based on the methodology presented in the European Standard ISO 10139-2. (3) Results: After three months of observation, the highest strength of the joint was characterized by Flexacryl Soft acrylic, for which the average value was 2.5 MPa. The lowest average value of 0.89 MPa was recorded for the GC Reline Soft silicone material. Over time, an increase in the value of the strength of the combination of acrylic materials and a decrease in these values in the case of silicone materials was observed. (4) Conclusion: Each of the tested silicone materials showed all three types of damage, from adhesive to mixed to cohesive. All acrylic-based materials showed an adhesive type of failure. Time did not affect the type of destruction.
口腔黏膜擦伤和压疮最常见的原因是假牙压力过大或佩戴不当。使用软衬材料可以消除疼痛感并提高患者舒适度。软质弹性体材料的主要功能特性是能够减轻黏膜组织的负荷。(1) 背景：本研究旨在对用于丙烯酸假牙软衬的十种材料进行对比实验室研究。(2) 方法：有基于丙烯酸酯的材料（Vertex Soft、Villacryl Soft、Flexacryl Soft）和硅酮材料（Sofreliner Tough Medium、Sofreliner Tough Medium、Ufi Gel SC、GC Reline Soft、Elite Soft Relining、Molloplast）。实验室测试包括分析软衬材料与假牙丙烯酸板之间的拉伸粘结强度。测试是根据欧洲标准ISO 10139-2中提出的方法，在蒸馏水环境中考虑90天老化期进行的。(3) 结果：经过三个月的观察，Flexacryl Soft丙烯酸材料的结合强度最高，其平均值为2.5MPa。GC Reline Soft硅酮材料的最低平均值为0.89MPa。随着时间的推移，观察到丙烯酸材料组合的强度值增加，而硅酮材料的强度值下降。(4) 结论：每种测试的硅酮材料都表现出从粘结破坏到混合破坏再到内聚破坏的所有三种破坏类型。所有基于丙烯酸的材料都表现出粘结型破坏。时间不影响破坏类型。
