Kuźniarski Amadeusz, Huss Weronika, Dąbrowa Tomasz, Kijak Edward
Department of Prosthetic Dentistry, Wroclaw Medical University, 50-425 Wrocław, Poland.
Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland.
Materials (Basel). 2024 Jul 11;17(14):3439. doi: 10.3390/ma17143439.
In patients undergoing surgery for oral cancer, soft support materials are used to minimise trauma to the soft tissues. Silicone-based liners are widely used in prosthetic dentistry. A prerequisite for long-term Adhesion of the liner to the denture base is largely dependent on the surface preparation of the denture material.
The aim of the present study was to investigate whether surface preparation of the acrylic material by sandblasting increases the adhesion of the silicone support material to the acrylic denture plate.
The study included adhesion testing of four silicone-based soft cushioning materials (Silagum Comfort, Elite Soft Re-lining, Ufi Gel SC, Mucopren Soft) on a total of 270 samples. Each material was tested on 15 samples. Three subgroups with different surfaces were separated: 1 raw-standard surface treatment with a cutter, and 2 sandblasted, with 100 and 350 µm alumina grain at 90°. The samples were subjected to seasoning: 24 h and six weeks. The adhesion force of silicone to acrylic was measured by performing a tensile test using a universal two-column testing machine.
The highest bond strength was recorded for Silagum on the surface prepared using 100 µm abrasive and seasoned for 6 weeks (291.5 N). The smallest among the maximum forces was recorded for the Mucopren material (81.1 N). For the Mucopren system with a raw and sand-blasted surface (350 µm), the adhesion strength increased after six weeks. In contrast, the durability of the joint decreased for the 100 µm sandblasted surface. The Elite material exhibited similar values for maximum forces (271.8 N) and minimum forces (21.1 N). The highest strength (226.1 N) was recorded for the sample from the group prepared with 350 µm abrasive and seasoned for 24 h. The lowest value (72.6 N) occurred for the sample from the group with 100 µm abrasive and seasoned for 6 weeks.
Sandblasting of acrylic plastic improves adhesion to selected relining silicones. 2. The size of the abrasive employed has an impact on the adhesion between the acrylic plastic and the bedding silicone. 3. In the case of some relining systems (Mucopren), an increase in roughness through sandblasting has the effect of reducing the durability of the bonded joint.
在接受口腔癌手术的患者中，使用软质支撑材料以尽量减少对软组织的创伤。硅酮基衬垫在口腔修复学中广泛应用。衬垫与义齿基托长期黏附的一个先决条件很大程度上取决于义齿材料的表面处理。
本研究的目的是调查通过喷砂对丙烯酸材料进行表面处理是否会增加硅酮支撑材料与丙烯酸义齿基托之间的黏附力。
该研究包括对总共270个样本上的四种硅酮基软缓冲材料（Silagum Comfort、Elite Soft Re-lining、Ufi Gel SC、Mucopren Soft）进行黏附测试。每种材料在15个样本上进行测试。将具有不同表面的三个亚组分开：1用刀具进行原始标准表面处理，2喷砂处理，分别使用90°的100和350μm氧化铝颗粒。样本进行时效处理：24小时和六周。通过使用通用双柱试验机进行拉伸试验来测量硅酮与丙烯酸之间的黏附力。
在使用100μm磨料制备并时效处理6周的表面上，Silagum记录到最高的粘结强度（291.5N）。Mucopren材料记录到的最大力中最小（81.1N）。对于具有原始和喷砂表面（350μm）的Mucopren系统，六周后黏附强度增加。相比之下，100μm喷砂表面的接头耐久性降低。Elite材料的最大力（271.8N）和最小力（21.1N）表现出相似的值。用350μm磨料制备并时效处理24小时的组中的样本记录到最高强度（226.1N）。用100μm磨料制备并时效处理6周的组中的样本出现最低值（72.6N）。
