Influence of ER-CR-YSGG Laser and Photodynamic Therapy on the Dentin Bond Integrity of Nano-Hydroxyapatite Containing Resin Dentin Adhesive: SEM-EDX, Micro-Raman, Micro-Tensile, and FTIR Evaluation

被引：39

作者：

Aljamhan, Abdullah S. ^{[1
]}

Alrefeai, Mohammad H. ^{[1
]}

Alhabdan, Alhanouf ^{[1
]}

Alhusseini, Sarah A. ^{[1
]}

Farooq, Imran ^{[2
]}

Vohra, Fahim ^{[3
]}

Naseem, Mustafa ^{[4
]}

Alkhudhairy, Fahad ^{[1
]}

机构：

[1] King Saud Univ, Coll Dent, Restorat Dent Sci Dept, Riyadh 11545, Saudi Arabia

[2] Univ Toronto, Fac Dent, Toronto, ON M5G 1G6, Canada

[3] King Saud Univ, Coll Dent, Prosthet Dent Sci, Riyadh 11545, Saudi Arabia

[4] Dow Int Dent Coll, Dept Community & Prevent Dent Sci, Karachi 74200, Pakistan

来源：

POLYMERS | 2021年 / 13卷 / 12期

关键词：

adhesive; hydroxyapatite; H3PO4; photodynamic therapy; laser; YAG-LASER; STRENGTH; NANOPARTICLES; SYSTEMS; PHOTOPOLYMERIZATION; MICROTENSILE; CONVERSION; COMPOSITE; FILLERS; ENAMEL;

D O I：

10.3390/polym13121903

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理];

摘要：

The study aimed to analyze the effect of the addition of nano-hydroxyapatite (nano-HA) particles on the mechanical properties of experimental adhesive (EA). Furthermore, dentin interaction of EA (without nano-HA) and EA with nano-HA (hereon referred to as HA-10%) were also investigated and equated. Methods consisting of scanning electron microscopy (SEM)-energy-dispersive X-ray spectroscopy (EDX), micro-Raman spectroscopy, micro-tensile bond strength (mu TBS) test, and Fourier transform infrared (FTIR) spectroscopy were employed to study nano-HA particles shape, dentin bond strength, degree of conversion (DC), and adhesive-dentin interaction. Ninety teeth (N = 90) were collected, and pre-bonding, conditioning of dentin was performed utilizing phosphoric acid (H3PO4) etching, photodynamic therapy (PDT), and ER-CR-YSGG (ECY) laser. The teeth were set to form bonded specimens using two adhesives. Nano-HA particles were spherical-shaped, and EDX confirmed the presence of oxygen, calcium, and phosphorus. Micro-Raman spectroscopy revealed distinct phosphate and carbonate peaks for nano-HA. The mu TBS test demonstrated highest values for HA-10% group on the H3PO4 conditioned dentin. The greatest DC was observed for the EA group. The addition of nano-HA-10 wt.% particles in dentin adhesive resulted in improved bond strength. The incorporation also demonstrated acceptable DC (although lower than EA group), suitable dentin interaction, and resin tag formation.

引用

页数：13

共 49 条

[1]

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