Influence of Hydroxyapatite Nanospheres in Dentin Adhesive on the Dentin Bond Integrity and Degree of Conversion: A Scanning Electron Microscopy (SEM), Raman, Fourier Transform-Infrared (FTIR), and Microtensile Study.
Influence of Hydroxyapatite Nanospheres in Dentin Adhesive on the Dentin Bond Integrity and Degree of Conversion: A Scanning Electron Microscopy (SEM), Raman, Fourier Transform-Infrared (FTIR), and Microtensile Study.
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牙本质粘接剂中羟基磷灰石纳米球对牙本质粘接完整性和转化度的影响：扫描电子显微镜（SEM）、拉曼、傅立叶变换红外（FTIR）和微拉伸研究。
DOI：
10.3390/polym12122948
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发表时间：
2020-12-10
期刊：
影响因子：
5
通讯作者：
Abduljabbar T
中科院分区：
文献类型：
--
作者：
Al-Hamdan RS;Almutairi B;Kattan HF;Alsuwailem NA;Farooq I;Vohra F;Abduljabbar T
合成了一种掺有不同纳米羟基磷灰石 (n-HA) 颗粒浓度的实验粘合剂，并分析了牙本质相互作用、微拉伸粘合强度 (μTBS) 和转化度 (DC)。将 n-HA 粉末（5 wt% 和 10 wt%）添加到粘合剂中以产生三组； gp-1：对照实验粘合剂（CEA，0 wt% HA），gp-2：5 wt% n-HA（HAA-5%），gp-3：10 wt% n-HA（HAA-10%）。使用扫描电子显微镜 (SEM) 评估 n-HA 球体的形态。它们在粘合剂中的相互作用通过 SEM、能量色散 X 射线 (EDX) 和显微拉曼光谱进行了鉴定。对牙齿进行切片，分为研究组，并评估 μTBS 和失效模式。采用傅里叶变换红外 (FTIR) 光谱仪评估粘合剂的 DC。 EDX 图显示了 HAA-5% 和 HAA-10% 组中氧、钙和磷的出现情况。 HAA-5% 的 μTBS 值最大，其次是 HAA-10%。 FTIR 光谱显示了磷灰石的存在，显微拉曼显示了 n-HA 球体的磷酸盐和碳酸盐基团。观察到 CEA 组的 DC 最高，其次是 HAA-5%。 n-HA 球体表现出牙本质相互作用，并与树脂标签形成混合层。与 HAA-10% 和对照粘合剂相比，HAA-5% 表现出优异的 μTBS。 HAA-5% 的 DC 与对照粘合剂相当。
An experimental adhesive incorporated with different nano-hydroxyapatite (n-HA) particle concentrations was synthesized and analyzed for dentin interaction, micro-tensile bond strength (μTBS), and degree of conversion (DC). n-HA powder (5 wt % and 10 wt %) were added in adhesive to yield three groups; gp-1: control experimental adhesive (CEA, 0 wt % HA), gp-2: 5 wt % n-HA (HAA-5%), and gp-3: 10 wt % n-HA (HAA-10%). The morphology of n-HA spheres was evaluated using Scanning Electron Microscopy (SEM). Their interaction in the adhesives was identified with SEM, Energy-Dispersive X-ray (EDX), and Micro-Raman spectroscopy. Teeth were sectioned, divided in study groups, and assessed for μTBS and failure mode. Employing Fourier Transform-Infrared (FTIR) spectroscopy, the DC of the adhesives was assessed. EDX mapping revealed the occurrence of oxygen, calcium, and phosphorus in the HAA-5% and HAA-10% groups. HAA-5% had the greatest μTBS values followed by HAA-10%. The presence of apatite was shown by FTIR spectra and Micro-Raman demonstrated phosphate and carbonate groups for n-HA spheres. The highest DC was observed for the CEA group followed by HAA-5%. n-HA spheres exhibited dentin interaction and formed a hybrid layer with resin tags. HAA-5% demonstrated superior μTBS compared with HAA-10% and control adhesive. The DC for HAA-5% was comparable to control adhesive.
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影响因子：
2.1
作者：
Mortazavi, Vajihesadat;Fathi, Mohammadhosein;Askari, Navid
通讯作者：
Askari, Navid
影响因子：
3
作者：
Amaechi, Bennett T.;AbdulAzees, Parveez Ahamed;Evans, Veronica
通讯作者：
Evans, Veronica
影响因子：
4.6
作者：
Jun SK;Yang SA;Kim YJ;El-Fiqi A;Mandakhbayar N;Kim DS;Roh J;Sauro S;Kim HW;Lee JH;Lee HH
通讯作者：
Lee HH
DOI：
10.1002/jbm.10053
发表时间：
2001-12-05
期刊：
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH
影响因子：
--
作者：
Jones, JR;Sepulveda, P;Hench, LL
通讯作者：
Hench, LL
影响因子：
4.4
作者：
Branco Leitune, Vicente Castelo;Collares, Fabricio Mezzomo;Werner Samuel, Susana Maria
通讯作者：
Werner Samuel, Susana Maria