CAJ | 학술논문

选用人工唾液、去离子水和乳酸3种不同pH值的浸泡液模拟人体口腔环境,将玻璃离子水门汀、聚羧酸锌水门汀和磷酸锌水门汀分别浸泡7 d.采取Paffenbarger重量法测定水门汀浸泡前后质量的改变,计算材料的溶解率.结果表明:玻璃离子水门汀在人工唾液、去离子水和乳酸溶液中的溶解率分别为:0.11%、0.14%、1.68%;聚羧酸锌水门汀为:0.48%、0.59%、2.80%;磷酸锌水门汀为:0.67%、1.01%、3.02%;3种水门汀溶解性大小为:玻璃离子水门汀＜聚羧酸锌水门汀＜磷酸锌水门汀.各浸泡液中,3种水门汀之间的溶解率有显著差异(P＜0.05);玻璃离子水门汀在去离子水和人工唾液中的溶解率无显著差异(P＞0.05),并保持较低的溶解率,其他2种水门汀在3种浸泡液中的溶解率都有显著差异(P＜0.05);3种水门汀在乳酸溶液中的溶解率都明显高于其他2种浸泡液中的溶解率(P＜0.05),而且磷酸锌水门汀的溶解率明显高于其他2种水门汀.3种水门汀在不同pH值下溶解性变化规律一致,浸泡液pH值对水门汀的溶解性具有明显的影响.
선용인공타액、거리자수화유산3충불동pH치적침포액모의인체구강배경,장파리리자수문정、취최산자수문정화린산자수문정분별침포7 d.채취Paffenbarger중량법측정수문정침포전후질량적개변,계산재료적용해솔.결과표명:파리리자수문정재인공타액、거리자수화유산용액중적용해솔분별위:0.11%、0.14%、1.68%;취최산자수문정위:0.48%、0.59%、2.80%;린산자수문정위:0.67%、1.01%、3.02%;3충수문정용해성대소위:파리리자수문정＜취최산자수문정＜린산자수문정.각침포액중,3충수문정지간적용해솔유현저차이(P＜0.05);파리리자수문정재거리자수화인공타액중적용해솔무현저차이(P＞0.05),병보지교저적용해솔,기타2충수문정재3충침포액중적용해솔도유현저차이(P＜0.05);3충수문정재유산용액중적용해솔도명현고우기타2충침포액중적용해솔(P＜0.05),이차린산자수문정적용해솔명현고우기타2충수문정.3충수문정재불동pH치하용해성변화규률일치,침포액pH치대수문정적용해성구유명현적영향.
The artificial saliva, deionized water and lactic acid solutions with different pH were chosen to simulate human oral environment. The glass ionomer cement(GIC), zinc polycarboxylate cement(ZPCC) and zinc phosphate cement(ZPC)were soaked into three kinds of soaking solution for 7 d. Using the method of Paffenbarger, the quality of cement was determined before and after soaking. The solubility was calculated. Results indicated that: the solubility of GIC in the artificial saliva, deionized water and lactic acid solution was 0.11%, 0.14% and 1.68%; the solubility of ZPCC in three kinds of solution was 0.48%, 0.59% and 2.80%; the solubility of ZPC was 0.67%, 1.01% and 3.02%. The comparison of the solubility of three cements was: GIC<ZPCC<ZPC. There was obvious solubility difference in three kinds of cements(P<0.05); there was no notable difference between the solubility of GIC in the artificial saliva and that in deionized water(P>0.05); the solubility of GIC maintained lower level. There was bigger solubility difference in other two cements in three kinds of cements(P<0.05). Furthermore, the solubility of ZPC was higher in evidence than the other two cements. The variety disciplinarian of solubility of three cements was consistent. The pH value of soaking solution had the obvious relativity with the solubility of cements.