Effect of different surface treatments and thermocycling on shear bond strength to polyetheretherketone
| Autor: | Li Zhou, Xiuju Liu, Hong Liu, Deli Niu, Kang Gan, Yuetong Qian |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Materials science
Argon Polymers and Plastics Organic Chemistry Composite number chemistry.chemical_element 030206 dentistry 02 engineering and technology 021001 nanoscience & nanotechnology 03 medical and health sciences 0302 clinical medicine Distilled water chemistry Femtosecond Materials Chemistry Peek Surface roughness Wetting Adhesive Composite material 0210 nano-technology |
| Zdroj: | High Performance Polymers. 29:87-93 |
| ISSN: | 1361-6412 0954-0083 |
| DOI: | 10.1177/0954008316628966 |
| Popis: | This study was designed to evaluate the shear bond strength of an adhesive/composite system subjected to different pretreated polyetheretherketone (PEEK) surfaces using different thermocycling conditioning methods. A total of 128 specimens were equally divided into four main groups ( n = 32/group): control (no pretreatment), air abrasion, argon plasma pretreatment, and femtosecond laser groups. The surface topographies and surface roughness were observed by atomic force microscopy after different pretreatments. The specimens were bonded with SE Bond/Clearfil AP-X™. All bonded specimens were stored in distilled water at 37°C for 24 h. Afterward, each group was divided into three subgroups ( n = 8/group) as follows: (a) stored in water for 56 h (37°C); (b) thermal aging for 5000 cycles (5°C/55°C); and (c) thermal aging for 10,000 cycles (5°C/55°C). The shear bond strengths were measured. Air abrasion, argon plasma pretreatment, and femtosecond laser significantly strengthened the bond of SE Bond/Clearfil AP-X™ to PEEK composite compared with that without additional pretreatment. In the same surface pretreatment, the shear bond strengths of specimens conditioned using water storage were higher than that using thermocycles (TCs). Additionally, the specimens with 5000 TC showed significantly higher shear bond strength than that with 10000 TC. |
| Databáze: | OpenAIRE |
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