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使用多技术分析方法对高金合金烤瓷熔附的氧化层特性及界面分析

Oxide layer characteristics and interfacial analysis of porcelain fused to high-gold alloy using multitechnique analysis methods.

作者信息

Chang Hao-Sheng, Chiu Yu-Chun, Yang Chao-Sen, Chen Ming

机构信息

Department of Dentistry, Kaohsiung Veteran General Hospital, Kaohsiung, Taiwan.

Department of Dental Technology, Shu Zen College of Medicine and Management, Kaohsiung, Taiwan.

出版信息

J Dent Sci. 2017 Dec;12(4):319-327. doi: 10.1016/j.jds.2017.03.003. Epub 2017 Apr 4.

DOI:10.1016/j.jds.2017.03.003
PMID:30895070
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC6395368/
Abstract

BACKGROUND/PURPOSE: In a previous fractural study, high-gold crowns possessed the second highest fracture force. The objective of this study is to analyze the interface of porcelain fused to high-gold alloy using different observation devices.

MATERIALS AND METHODS

High-gold crowns specimens with the morphology of a maxillary second premolar were compressed vertically in the center of the occlusal surface until fracture using a universal testing machine. The fractured surfaces were examined using scanning electron microscopy combined with energy-dispersive X-ray spectroscopy (SEM/EDX) to determine the failure mode. The ceramic-metal interface of the crown was examined with electron probe microanalysis (EPMA). In addition, sheet specimens with dimensions of 10 × 9 × 4 mm were prepared to examine the surface morphology and composition of high-gold alloy after oxidation using X-ray photoelectron spectrometer (XPS).

RESULTS

The average fracture force was 1368 ± 312 N. Photograph of fractured crown and SEM/EDX analyses reveal that the crown initially suffered from cohesive failure in the upper and middle regions, with the fracture occurring mostly within the ceramic. XPS results and both EPMA color photomicrographs of crown and sheet specimens show that indium was observed along the porcelain-metal interface with a 1- to 2-μm disrupted zone of oxide layer.

CONCLUSION

InO and Au were found along the interface from the multitechnique analysis methods; the presence of this oxide at the boundary promotes ceramic-metal adhesion. InO is suggested to be beneficial for the second highest fracture resistance in a previous fractural study of implant-supported crowns.

摘要

背景/目的：在先前的一项断裂研究中，高金冠的断裂力第二高。本研究的目的是使用不同的观察设备分析烤瓷熔附高金合金的界面。

材料与方法

采用万能试验机，对上颌第二前磨牙形态的高金冠标本在咬合面中心垂直压缩直至断裂。使用扫描电子显微镜结合能量色散X射线光谱仪（SEM/EDX）检查断裂表面，以确定失效模式。用电子探针微分析（EPMA）检查冠的陶瓷-金属界面。此外，制备尺寸为10×9×4mm的薄片标本，用X射线光电子能谱仪（XPS）检查高金合金氧化后的表面形态和成分。

结果

平均断裂力为1368±312N。断裂冠的照片和SEM/EDX分析表明，冠最初在上部和中部区域发生内聚破坏，断裂大多发生在陶瓷内部。XPS结果以及冠和薄片标本的EPMA彩色显微照片显示，在陶瓷-金属界面观察到铟，氧化层有1至2μm的破坏区。

结论

通过多种技术分析方法在界面处发现了InO和Au；边界处这种氧化物的存在促进了陶瓷-金属的结合。在先前关于种植体支持冠的断裂研究中，InO被认为有利于第二高的抗断裂性。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/56b09ec6978e/figs5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/4c82d221ea31/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/5456d7d91826/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/3051dedb8dbc/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/bc3e4dcaaf43/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/80a782c9c7de/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/71668a4f8ffa/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/2a6130ba2afe/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/0d057bd9f512/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/2c4bc81109f0/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/27d39b117776/figs1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/4f24c7b953cf/figs2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/e85a7fb8a384/figs3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/01a6f487723e/figs4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/56b09ec6978e/figs5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/4c82d221ea31/gr1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/5456d7d91826/gr2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/3051dedb8dbc/gr3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/bc3e4dcaaf43/gr4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/80a782c9c7de/gr5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/71668a4f8ffa/gr6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/2a6130ba2afe/gr7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/0d057bd9f512/gr8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/2c4bc81109f0/gr9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/27d39b117776/figs1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/4f24c7b953cf/figs2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/e85a7fb8a384/figs3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/01a6f487723e/figs4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/6108/6395368/56b09ec6978e/figs5.jpg

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