低溫製備氫氧基磷灰石及含SiO2-B2O3-P2O5玻璃假牙複合材料

Low-temperature preparation of Hydroxyapatite-containing and SiO2-B2O3- P2O5 Dental Bio-composite

曹俊清(Jyun-Ching Cao)

指導教授 ： 許澤勳

義守大學/理工學院/材料科學與工程學系/碩士(2015年)

https://doi.org/10.6343/ISU.2015.00228

摘要

現今社會，因為飲食以及生活習慣改變，口腔疾病罹患率升高，而牙齒對於生活，具有著非常重要的地位、扮演著生活中種種的重要角色。由於不良的飲食習慣，導致牙齒損壞機會大增，近年來假牙使用比率升高，而使用假牙之年齡層有逐年下降之趨勢。
假牙複合材料一般製備的溫度均在900℃-1000℃左右，所以研究的主要題材是降低陶瓷材料燒結溫度，一則在常溫或低溫製備，另一方法是加入燒結添加劑用以降低燒結溫度。氫氧基磷灰石(HA)製備方法是：利用Ca(OH)2之生胚和過飽和之Ca(OH)2及H3PO4溶液作用產生多孔性之磷酸鈣材料。另一方法在HA中添加2SiO2．Na2O在900℃以下燒結。
至於矽酸鹽玻璃則是以4SiO2 Al2O3 Na2O (4:1:1)及6SiO2 Al2O3 Na2O (6:1:1)之矽酸鹽玻璃添加B2O3/P2O5=1:1鹽類在燒結溫度低於900℃來製備完成，至於相關之相組成，微觀組織及生物活性將於論文中詳細討論。

關鍵字

氫氧基磷灰石 ； 氧化鋯 ； 氧化鋁 ； 微觀結構 ； 生醫複合材料

並列摘要

Recently, due to eating and living habits are changed, the prevalence of oral diseases is abruptly increased. However the teeth play an important role in our daily life. Therefore, unhealthy eating habits will cause tooth damage and further produce a very inconvenient life. Except for natural teeth, in the recent years, artificial dentures have been used increasingly as the human being is getting younger.
　　Most dental bio-composites are fabricated at T<900℃-1000℃. For decreasing the sintering temperature of dental ceramics, two methods are proposed in this thesis: one is directly obtained dental bio-composites at ambient or low temperatures, the other is introduced a low-temperature sintering aid. For preparing hydroxyapatite (HA) composite, Ca(OH)2+H3PO4 to obtain a porous calcium phosphate material, the other method is introduce a sintering aid 2SiO2．Na2O in HA to sinter it at T<900℃. As to silicate dental glass, silicate-contain glasses with the composition of 4SiO2．Al2O3．Na2O and 6SiO2．Al2O3．Na2O are mixed with the B2O3/P2O5 =1:1 salts to sinter it at T<900℃.
Except for the preparation of dental bio-composites, phase existence, microstructures, and bio-active behaviors one also discussed or evaluated.

並列關鍵字

hydroxyapatite ； zirconia ； alumina ； micro-structure ； bio-composites

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