Piddock V, Qualtrough A J, Brough I
Department of Restorative Dentistry, University of Manchester Dental School, United Kingdom.
Int J Prosthodont. 1991 Mar-Apr;4(2):132-7.
The effect of a commercial ion exchange paste on the tensile strength of high- and low-expansion dental porcelains was investigated. Strength measurements were correlated with changes in surface chemistry. The paste was found to be more effective for aluminous porcelains than for an inlay ceramic, although only when applied to the surface placed in tension. Surface finish also influenced the effectiveness of the paste. The depth of ion exchange was assessed by energy dispersive x-ray analysis and was found to extend to at least 100 microns, although the most marked change occurred within a 10-microns layer below the surface.
研究了一种商用离子交换糊剂对高膨胀和低膨胀牙科陶瓷拉伸强度的影响。强度测量结果与表面化学变化相关。发现该糊剂对氧化铝陶瓷比对嵌体陶瓷更有效，不过仅在应用于受拉表面时如此。表面光洁度也影响糊剂的有效性。通过能量色散X射线分析评估离子交换深度，发现其至少延伸至100微米，不过最显著的变化发生在表面以下10微米的层内。
