Fourier-Transform Infrared Spectroscopy Analysis of 3D-Printed Dental Resins Reinforced with Yttria-Stabilized Zirconia Nanoparticles.

IF 2.5 Q2 DENTISTRY, ORAL SURGERY & MEDICINE
Andrea Izabella Borș
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Abstract

Background/Objectives: This study investigates the chemical structure and molecular interactions in 3D-printed dental resins reinforced with varying concentrations of Yttria-Stabilized Zirconia (YSZ) nanoparticles, using Fourier-Transform Infrared Spectroscopy (FTIR) to assess the compatibility and bonding behavior at the molecular level. Methods: Three groups of 3D-printed methacrylate-based resin discs were fabricated: a control (0% YSZ), and experimental groups reinforced with 1% and 3% YSZ nanoparticles. Samples were produced using Digital Light Processing (DLP) technology and post-processed under standardized conditions. FTIR spectra were collected via ATR mode over a wavenumber range of 4000-600 cm-1. Spectral differences at key wavenumbers (1721.16, 1237.11, and 929.62 cm-1) were statistically analyzed using one-way ANOVA and Tukey's post hoc test. Results: FTIR spectra showed no significant shifts in the ester carbonyl band at 1721.16 cm-1, suggesting the preservation of the core resin matrix. However, a statistically significant increase in absorbance at 1237.11 cm-1 was observed in the 1% YSZ group (p = 0.034), indicating dipolar interaction. A distinct new peak at 929.62 cm-1, corresponding to Zr-O vibrations, emerged in the 3% YSZ group (p = 0.002), confirming successful nanoparticle integration. Conclusions: YSZ nanoparticles enhance specific molecular interactions within methacrylate-based dental resins without compromising structural integrity. These findings support the potential application of YSZ-reinforced 3D-printed resins in durable, biocompatible permanent dental restorations.

氧化钇稳定氧化锆纳米颗粒增强3d打印牙科树脂的傅里叶变换红外光谱分析。
背景/目的:本研究研究了不同浓度氧化钇稳定氧化锆(YSZ)纳米颗粒增强3d打印牙科树脂的化学结构和分子相互作用,利用傅里叶变换红外光谱(FTIR)在分子水平上评估相容性和键合行为。方法:制备三组3d打印的甲基丙烯酸酯基树脂盘:对照组(0% YSZ),实验组分别用1%和3% YSZ纳米颗粒增强。样品采用数字光处理(DLP)技术生产,并在标准化条件下进行后处理。在4000 ~ 600 cm-1的波数范围内,采用ATR模式采集FTIR光谱。关键波数(1721.16、1237.11和929.62 cm-1)的光谱差异采用单因素方差分析和Tukey事后检验进行统计学分析。结果:FTIR光谱显示在1721.16 cm-1处酯羰基带无明显移位,表明核心树脂基体保存完好。然而,1% YSZ组在1237.11 cm-1处的吸光度有统计学意义的增加(p = 0.034),表明偶极相互作用。在3%的YSZ组中,出现了一个明显的新峰,位于929.62 cm-1处,对应于Zr-O振动(p = 0.002),证实了纳米颗粒的成功整合。结论:YSZ纳米颗粒增强了甲基丙烯酸酯基牙科树脂中特定的分子相互作用,而不影响结构完整性。这些发现支持ysz增强3d打印树脂在耐用、生物相容性永久牙齿修复中的潜在应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Dentistry Journal
Dentistry Journal Dentistry-Dentistry (all)
CiteScore
3.70
自引率
7.70%
发文量
213
审稿时长
11 weeks
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