以高嶺土添加複合樹脂作為牙科釋氟封閉劑

Kaolinite Added Composite Resin as Dental Pit and Fissure Sealants

李新春(Xin-Chun Li)

指導教授 ： 許淙慶 ； 林峯輝

國立臺北科技大學/工程學院/材料科學與工程研究所/碩士(2009年)

摘要

臼齒的窩縫是經常發生齲齒的區域，新的治療方式希望填補這些區域來減低蛀牙的機率，而填補的材料需具備氟離子釋放的功能，才可以有效預防齲齒；實驗證明黏土添加在填補材料中，可以有效達到氟離子釋放的功能，所以我們希望使用添加高嶺土的方式，使填補材料有釋放氟離子，以及再吸收氟離子的功能。我們成功改質黏土表面以及層間，讓黏土以及牙科樹脂之間作用力提升，相容性增強，可以有效提升牙科樹脂之抗磨耗能力以及機械性質，再藉由離子層析儀分析氟離子釋放狀況，並藉由材料毒性測詴，來確認自行製備之複合樹脂不會對人體產生毒害。

關鍵字

齲齒 ； 窩縫 ； 氟離子 ； 高嶺土 ； 抗磨耗 ； 機械性質 ； 離子層析儀 ； 材料毒性

並列摘要

The fissures of permanent molars are usually the first tooth surfaces to become affected by caries in younger age groups. New methods of caries prevention focus on pit and fissure caries because tooth surfaces with pits and fissures have always been the earliest and most prevalent of carious areas. The clinical experience of the anticariogenic effect of silicate filling indicated the beneficial effects of fluoride releasing restorative materials. Kaolinite (Al2Si2O5(OH)4) has been suggested as an active substrate for de-fluoridation. The high adsorption of kaolinite to fluoride is due to its layered aluminosilicate structure and high surface area. The organofunctionalization of kaolinite can be made after the intercalation of small polar molecules. It is desirable that kaolinite/acrylamide compound could graft on resin matrix and improve the composite resin mechanical properties. In this study, we aimed to develop a flowable composite resin as pit and fissure sealants, and to estimate the fluoride release and recharge ability and mechanical property of this resin.

並列關鍵字

Pits and fissures ； caries ； Kaolinite ； fluoride ； mechanical properties ； sealants

參考文獻

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