奈米氧化鋅於牙科瓷層表面抗菌性質之研究

The study of antibacterial property of zinc oxide nanoparticle on porcelain surface

郭思攸(Shih-Yu Kuo)

指導教授 ： 楊永欽

國立臺北科技大學/工程學院/材料科學與工程研究所/碩士(2008年)

https://doi.org/10.6841/NTUT.2008.00447

摘要

本研究主要是以牙科瓷表材粉添加不同比例之奈米氧化鋅，分別以820°C、860°C、900°C及940°C進行燒結，探討由不同氧化鋅含量、不同燒結溫度等製程參數所製作之各牙科瓷材料，在抗菌性及玻璃化等方面之表現。實驗結果顯示，在相同燒結條件下，氧化鋅含量增加，試片之抗菌能力亦隨之提升。另外，在燒結溫度低於860°C時，由於牙科瓷粉尚未完成變相，故材料皆無法有進一步的實務利用。綜觀各類牙科瓷/氧化鋅試片，在考量抗菌性及保留原有之牙科瓷性質之情況下，以氧化鋅添加量為15%~20%經900°C燒結之材料為最佳配比。

關鍵字

奈米氧化鋅 ； 牙科瓷 ； 抗菌性

並列摘要

In this study, we used the enamel shade porcelain powder (American Pentron®) mixed with 10%, 15%, 20%, and 25% nano-ZnO particles. The pre-shaped samples were first dried at 540ºC for 5 min and then fired for 820ºC, 860ºC, 900ºC, and 940ºC, respectively. The results showed that the addition of nano-ZnO particle could enhance the antibacterial properties of dental porcelain. Porcelain with 15~20% nano-ZnO and firing at 900ºC would reveal the excellent ability. This study will continue to advance the dental porcelain surface character and enable it to have the better antibacterial ability.

並列關鍵字

Nano-ZnO ； Porcelain ； Antibacterial

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