以氟化高嶺土及氧化鋁作複合樹脂之無機填料以達到釋氟及再填充氟離子之研究

牙科複合樹脂因在美觀上的優勢，故已漸漸取代汞齊合金來做於後牙填補的主要材料，但因為機械強度不足，無法負荷當我們口腔牙齒的咀嚼，咬合而發生變形甚至脫落，而使牙科複合樹脂補綴材料在應用上到限制。氟離子有助於鞏固牙齒及防止齲齒的功效，但是臨床上所使用的複合樹脂都不法達到有良好的持續性氟離子釋放的效果。高嶺土（Kaolinite）為一種由許多矽酸鹽層所堆爹構成的黏土礦物，由於層間可被外來分子或離子插入，故理論上可進行有機化處理，將單體或高分子導入層間，在於表面接枝適當構造之高分子，例如 Bis-GMA，使無機填料與高分子基質充分混和、硬化已提供良好之機械性質。故本實驗之研究目的為改善複合樹脂機械性質不足之缺點及增進氟離子吸收及再釋放之能力。本實驗室已開發過利用氟化蒙脫石作為無機填料，且擁有良好之氟離子吸收及再釋放之能力，故本實驗將利用氟化過之高嶺土添加氧化鋁粉，預期能擁有良好之氟離子釋放能力且能夠有效提升其機械性質。

關鍵字

齲齒；複合樹脂；氟離子；高嶺土

並列摘要

The use of composite resin material for posterior tooth restorations is increasing. This increase is attributed primarily to demand for improved esthetics. However, poor material properties limited the success of composite restoration in posterior teeth. Microleakage, fractures within the body of the restorations, marginal ditching, protruding, and imperfect wear resistance are reported as being the most common causes of failure in posterior composites. Fluoride release from restorative materials may prevent development of secondary carious lesions at the restoration tooth inter face and can develop remineralization of enamel or decalcified dentin, so long as physical and mechanical properties are not adversely affected. The objuct of this study want to investigate a new composite resin with good mechanical properties and expect could provided fluoride release and recharge property.

並列關鍵字

posterior tooth ； fluoride ； composite resin ； kaolinite

參考文獻

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[2] 李榮哲，熔融插層製備三元乙丙橡膠(EPDM)/黏土奈米複材及其性質之研究，碩士論文，2005，台北科技大學有機高分子研究所。

[4] IR, R., A review of direct orthodontic bonding. Br Dent, 1975. 2: p. 171.

[5] Powis DR, Folleras T, Merson SA, Wilson AD. Improved adhesion of glass ionomer cement to dentin and enamel. J Dent Res 1982;61:1416-1422.

[6] Reynolds I. A review of direct orthodontic bonding. Br Dent J 1975;2:171.

國際替代計量

以氟化高嶺土及氧化鋁作複合樹脂之無機填料以達到釋氟及再填充氟離子之研究

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