hrvatski

Kompozitni materijali s mezoporoznim nanosferama bioaktivnog stakla infiltriranog bakrom – utjecaj na dubinu polimerizacije

Aim: Copper-doped mesoporous bioactive glass nanospheres (Cu- MBGN) are developed to ensure remineralization and antibacterial properties. This study investigated the influence of Cu-MBGN on resin composites' depth of cure (DoC). Materials and methods: Eight materials were tested in the study: giomer as a reference material (Beautifil II, Shofu) and seven experimental materials with 45% photoactive resin (60/40 BisGMA / TEGDMA) and 65% filler. Inert barium glass was combined with 10% Cu-MBGN, silica, or conventional 45S5 bioactive glass in the bimodal group. In the trimodal group, the fillers consisted of 0, 1, or 5% Cu- MBGN or 45S5 glass, silica, and inert silanized barium glass fillers. The materials were fed into 4 mm diameter and 10 mm high cylindrical molds and cured with 920 mW/cm2 for 20 s. The unpolymerized excess material was removed, the length of the remaining part was measured with a movable gauge and divided by 2 to obtain DoC according to ISO 4049. Data were statistically processed by one-way ANOVA and Tukey post-hoc test (p <0.05). Results: The lowest DoC of 2.06 mm was exhibited by the control material. In the bimodal group, the inert material with silica fillers (3.67 mm) had the statistically highest DoC, and the material with Cu-MBGN (2.75 mm) had the lowest DoC. In the trimodal group, the DoC reached 2.6–3.32 mm while the lowest value was obtained for the material with 5% Cu-MBGN and silica. Conclusion: An increase in the Cu-MBGN content led to a decrease in DoC. Nevertheless, all experimental materials achieved significantly greater curing depth than the commercial reference material. This study was supported by Croatian Science Foundation (IP-2019- 04-6183).

mesoporous ; bioactive glass ; depth of cure ; dental composites

nije evidentirano

engleski

Resin composites containing copper-doped mesoporous bioactive glass – influence on the depth of cure

Aim: Copper-doped mesoporous bioactive glass nanospheres (Cu- MBGN) are developed to ensure remineralization and antibacterial properties. This study investigated the influence of Cu-MBGN on resin composites' depth of cure (DoC). Materials and methods: Eight materials were tested in the study: giomer as a reference material (Beautifil II, Shofu) and seven experimental materials with 45% photoactive resin (60/40 BisGMA / TEGDMA) and 65% filler. Inert barium glass was combined with 10% Cu-MBGN, silica, or conventional 45S5 bioactive glass in the bimodal group. In the trimodal group, the fillers consisted of 0, 1, or 5% Cu- MBGN or 45S5 glass, silica, and inert silanized barium glass fillers. The materials were fed into 4 mm diameter and 10 mm high cylindrical molds and cured with 920 mW/cm2 for 20 s. The unpolymerized excess material was removed, the length of the remaining part was measured with a movable gauge and divided by 2 to obtain DoC according to ISO 4049. Data were statistically processed by one-way ANOVA and Tukey post-hoc test (p <0.05). Results: The lowest DoC of 2.06 mm was exhibited by the control material. In the bimodal group, the inert material with silica fillers (3.67 mm) had the statistically highest DoC, and the material with Cu-MBGN (2.75 mm) had the lowest DoC. In the trimodal group, the DoC reached 2.6–3.32 mm while the lowest value was obtained for the material with 5% Cu-MBGN and silica. Conclusion: An increase in the Cu-MBGN content led to a decrease in DoC. Nevertheless, all experimental materials achieved significantly greater curing depth than the commercial reference material. This study was supported by Croatian Science Foundation (IP-2019- 04-6183).

mezoporozni ; bioaktivno staklo ; dupuna polimerizacije ; stomatološki kompozitni materijali

nije evidentirano