Mechanical Properties of Alkasite Material with Different Curing Modes and Simulated Aging Conditions

Znanstveni rad - Izvorni znanstveni rad

• Autor: Višnja Negovetić Mandić
• Autor: Laura Plančak
• Autor: Danijela Marović
• Autor: Zrinka Tarle
• Autor: Milena Trutina Gavran
• Autor: Matej Par
• Autorova ustanova: (Klinički bolnički centar Zagreb)
• Autorova ustanova: Sveučilište u Zagrebu; Stomatološki fakultet
• Znanstveno / umjetničko područje, polje i grana: BIOMEDICINA I ZDRAVSTVO; Dentalna medicina; Endodoncija i restaurativna dentalna medicina

Sažetak (engleski)

This study aimed to evaluate the micro-mechanical and macro-mechanical properties of self-cured and light-cured alkasite and to investigate how accelerated degradation in acidic, alkaline, and ethanol solutions affects the macro-mechanical properties of self-cured and light-cured alkasite. The specimens of the alkasite material (Cention Forte, Ivoclar Vivadent) were prepared according to the following three curing modes: (1) light-cured immediately, (2) light-cured after a 5-min delay, and (3) self-cured. Microhardness was tested before and after immersion in absolute ethanol to indirectly determine crosslink density, while flexural strength and flexural modulus were measured using a three-point bending test after accelerated aging in the following solutions: (1) lactic acid solution (pH = 4.0), (2) NaOH solution (pH = 13.0), (3) phosphate-buffered saline solution (pH = 7.4), and (4) 75% ethanol solution. The data were statistically analyzed using a two-way ANOVA and Tukey post hoc test. The results showed that the microhardness, flexural strength, and flexural modulus were significantly lower in self-cured specimens compared to light-cured specimens. A 5-min delay between the extrusion of the material from the capsule and light curing had no significant effect on any of the measured properties. A significant effect of the accelerated aging solutions on macro-mechanical properties was observed, with ethanol and alkaline solutions having a particularly detrimental effect. In conclusion, light curing was preferable to self-curing, as it resulted in significantly better micro- and macro-mechanical properties, while a 5-min delay between mixing the capsule and light curing had no negative effects.

• Ključne riječi (engleski): dental materials; alkasite; resin composite; flexural properties; crosslink density
• 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. 11, 2777
• e-ISSN: 1996-1944
• DOI: https://doi.org/10.3390/ma17112777
• URN:NBN: urn:nbn:hr:127:976686
• Datum objave publikacije: 2024-06-06
• URL dokumenta: https://www.mdpi.com/1996-1944/17/11/2777
• Vrsta resursa: Tekst
• Prava pristupa: Otvoreni pristup
• Datum i vrijeme pohrane: 2024-06-27 08:58:09