The Influence of Contemporary Denture Base Fabrication Methods on Residual Monomer Content, Flexural Strength and Microhardness

Znanstveni rad - Izvorni znanstveni rad

• Autor: Josip Vukšić
• Autor: Ana Pilipović
• Autor: Tina Poklepović Peričić
• Autor: Josip Kranjčić
• Autorova ustanova: Sveučilište u Splitu; Medicinski fakultet
• Autorova ustanova: Sveučilište u Zagrebu; Fakultet strojarstva i brodogradnje
• Autorova ustanova: Sveučilište u Zagrebu; Stomatološki fakultet
• Znanstveno / umjetničko područje, polje i grana: BIOMEDICINA I ZDRAVSTVO; Dentalna medicina

Sažetak (engleski)

(1) Background: Digital technologies are available for denture base fabrication, but there is a lack of scientific data on the mechanical and chemical properties of the materials produced in this way. Therefore, the aim of this study was to investigate the residual monomer content, flexural strength and microhardness of denture base materials as well as correlations between investigated parameters. (2) Methods: Seven denture base materials were used: one conventional heat cured polymethyl methacrylate, one polyamide, three subtractive manufactured materials and two additive manufactured materials. High-performance liquid chromatography was used to determine residual monomer content and the test was carried out in accordance with the specification ISO No. 20795-1:2013. Flexural strength was also determined according to the specification ISO No. 20795-1:2013. The Vickers method was used to investigate microhardness. A one-way ANOVA with a Bonferroni post-hoc test was used for the statistical analysis. The Pearson correlation test was used for the correlation analysis. (3) Results: There was a statistically significant difference between the values of residual monomer content of the different denture base materials (p < 0.05). Anaxdent pink blank showed the highest value of 3.2% mass fraction, while Polident pink CAD-CAM showed the lowest value of 0.05% mass fraction. The difference between the flexural strength values of the different denture base materials was statistically significant (p < 0.05), with values ranging from 62.57 megapascals (MPa) to 103.33 MPa. The difference between the microhardness values for the different denture base materials was statistically significant (p < 0.05), and the values obtained ranged from 10.61 to 22.86 Vickers hardness number (VHN). A correlation was found between some results for the material properties investigated (p < 0.05). (4) Conclusions: The selection of contemporary digital denture base manufacturing techniques may affect residual monomer content, flexural strength and microhardness but is not the only criterion for achieving favourable properties.

• Ključne riječi (engleski): denture bases; hardness; flexural strength; computer-aided design; computer-aided manufacturing
• Jezik: engleski
• Vrsta publikacije: Znanstveni rad - Izvorni znanstveni rad
• Status objave: Objavljen
• Vrsta recenzije: Recenziran - međunarodna recenzija
• Verzija publikacije: Objavljena verzija rada (izdavačev PDF)
• Naslov časopisa: Materials
• Brojčani podaci: vol. 17, br. 5, 1052
• e-ISSN: 1996-1944
• DOI: https://doi.org/10.3390/ma17051052
• URN:NBN: urn:nbn:hr:127:844196
• Datum objave publikacije: 2024-02-24
• URL dokumenta: https://www.mdpi.com/1996-1944/17/5/1052
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-07-01 07:33:38