Assessment of Bond Integrity, Durability, and Degree of Conversion of a Calcium Fluoride Reinforced Dentin Adhesive.
Assessment of Bond Integrity, Durability, and Degree of Conversion of a Calcium Fluoride Reinforced Dentin Adhesive.
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DOI：
10.3390/polym13152418
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发表时间：
2021-07-23
期刊：
影响因子：
5
通讯作者：
Abduljabbar T
中科院分区：
文献类型：
--
作者：
AlRefeai MH;AlHamdan EM;Al-Saleh S;Farooq I;Abrar E;Vohra F;Abduljabbar T
我们的研究旨在合成并比较两种粘合剂的机械性能和牙本质相互作用;实验粘合剂（EA）和EA含有5 wt.%氟化钙（CaF 2）纳米晶体（CaF 2粘合剂-CAFA）。通过在玻璃腔室中使用加热空气系统使两种溶液（含有钙和氟化物）反应来合成CaF 2纳米晶体。使用单体、光引发剂、邻苯二酚和电子引发剂的混合物产生EA。将合成的CaF 2纳米晶体离心以保证在粘合剂内部存在填料颗粒的均匀分散。它们在EA中的整合产生两组; Gp-1：EA（不含CaF 2，对照）和Gp-2：（5重量%）含CaF 2的粘合剂，CAFA）。使用两种粘合剂制备并设置60颗牙齿以形成粘合样本。CaF 2纳米晶体形状不规则，平均粒径为30-200 nm。CAFA非热循环（NTC）样本获得的μTBS值最高（32.63 ± 3.15），其次是EA-NTC样本（31.80 ± 3.75）。在热循环（TC）时，两个粘合剂组的μTBS值均较低（CAFA-TC：29.47 ± 3.33和EA-TC：24.04 ± 3.69）。混合层（HL）的形成和不同深度的树脂标签被认为是两个粘合剂组。EDX分析表明CAFA组存在碳（C）、二氧化硅（Si）、钙（Ca）和氟化物（F）。显微拉曼光谱显示CaF 2纳米晶体的明显峰。中央美术学院组的DC最大。在胶粘剂中加入CaF_2纳米晶可提高粘接强度μTBS和DC。掺入还证明了适当的牙本质相互作用，通过适当的HL和树脂标签开发来描述。
Our study aimed to synthesize and compare the mechanical properties and dentin interaction of two adhesives; experimental adhesive (EA) and EA containing 5 wt.% calcium fluoride (CaF2) nano-crystals (CaF2 adhesive-CAFA). CaF2 nano-crystals were synthesized by reacting two solutions (containing calcium and fluoride) in a glass chamber using a heated air system. The EA was produced using a mix of monomers, photo-initiators, camphorquinone, and electron initiators. The synthesized CaF2 nano-crystals were centrifuged to guarantee that inside the adhesive there is homogenized dispersion of the filler particles. Their integration in the EA yielded two groups; Gp-1: EA (without CaF2, control) and Gp-2: (5 wt.% CaF2 containing adhesive, CAFA). Sixty teeth were prepared and set to form bonded specimens using the two adhesives. The CaF2 nano-crystals were irregularly shaped with an average particle size of 30–200 nm. The highest μTBS values were obtained for CAFA-non-thermocycled (NTC) samples (32.63 ± 3.15), followed by EA-NTC (31.80 ± 3.75) specimens. On thermocycling (TC), both adhesive groups presented lower μTBS values (CAFA-TC: 29.47 ± 3.33 and EA-TC: 24.04 ± 3.69). Hybrid layer (HL) formation and resin tags of varying depths were perceived for both adhesive groups. The EDX analysis demonstrated the presence of carbon (C), silica (Si), calcium (Ca), and fluoride (F) for CAFA group. Micro-Raman spectroscopy revealed distinct peaks for CaF2 nano-crystals. The CAFA group presented the greatest DC. The addition of CaF2 nano-crystals in the adhesive caused improved bond μTBS and DC. The incorporation also demonstrated suitable dentin interaction, depicted by appropriate HL and resin tag development.
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DOI：
10.11607/prd.3992
发表时间：
2020-05-01
影响因子：
1.6
作者：
Mahrous, Aliaa;Radwan, Mohamed M.;Kamel, Samah Mohamed
通讯作者：
Kamel, Samah Mohamed
影响因子：
4.8
作者：
Mitwalli H;Balhaddad AA;AlSahafi R;Oates TW;Melo MAS;Xu HHK;Weir MD
通讯作者：
Weir MD
影响因子：
2.5
作者：
Almutairi, Basil;Kattan, Hiba F.;Abduljabbar, Tariq
通讯作者：
Abduljabbar, Tariq
DOI：
10.1007/s10856-014-5200-x
发表时间：
2014-07-01
影响因子：
3.7
作者：
Koeser, Joachim;Carvalho, Thiago Saads;Lussi, Adrian
通讯作者：
Lussi, Adrian
影响因子：
5
作者：
Al-Hamdan RS;Almutairi B;Kattan HF;Alsuwailem NA;Farooq I;Vohra F;Abduljabbar T
通讯作者：
Abduljabbar T