A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Effect of Surface Polishing on Physical Properties of an Occlusal Splint Material for Additive Manufacturing under Protection Gas Post-Curing Condition
Tekijät: Wada Junichiro, Wada Kanae, Gibreel Mona, Wakabayashi Noriyuki, Iwamoto Tsutomu, Vallittu Pekka K, Lassila Lippo
Kustantaja: MDPI
Julkaisuvuosi: 2023
Journal: Polymers
Tietokannassa oleva lehden nimi: POLYMERS
Lehden akronyymi: POLYMERS-BASEL
Artikkelin numero: 625
Vuosikerta: 15
Numero: 3
Sivujen määrä: 11
DOI: https://doi.org/10.3390/polym15030625
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/178965341
The aim of this study was to evaluate the effect of surface polishing as well as the post-curing atmospheres (air and nitrogen gas) on the physical properties of an occlusal splint material for additive manufacturing. Flexural strength, flexural modulus, Vickers hardness number (VHN), degree of carbon double bond conversion (DC), water sorption (W-SP), and water solubility (W-SL) were evaluated. Surface polishing significantly affected the evaluated properties. Regardless of the post-curing atmosphere, flexural strength, flexural modulus, VHN, and DC showed significantly higher values for the polished specimens when compared with the unpolished ones, while W-SP and W-SL were significantly lower for the polished specimens. Unpolished specimens post-cured at nitrogen gas showed significantly higher VHN and DC values. However, the effect of the post-curing at a nitrogen gas atmosphere was non-significant in polished specimens. The current results suggested that surface polishing plays a role in the physical properties of the evaluated occlusal splint material and can enhance all the evaluated properties regardless of the post-curing atmosphere. Meanwhile, the post-curing at a nitrogen gas atmosphere can enhance the VHN and DC but its effect is confined only to the surface layers, which can be removed during surface polishing.
Ladattava julkaisu This is an electronic reprint of the original article. |  |
