中华口腔医学杂志
中華口腔醫學雜誌
중화구강의학잡지
Chinese Journal of Stomatology
2014年
11期
677-681
,共5页
牙科粘固剂%溶解度%硬度%水储存%吸水性
牙科粘固劑%溶解度%硬度%水儲存%吸水性
아과점고제%용해도%경도%수저존%흡수성
Dental cements%Solubility%Hardness%Water storage%Water sorption
目的 评价不同类型水门汀材料在长期水储存条件下的理化性能变化,为临床合理选择水门汀材料提供依据.方法 将4种类型的水门汀材料[A:玻璃离子水门汀(Fuji Ⅰ);B:树脂加强型玻璃离子水门汀(Fuji Plus);C:自粘接类树脂水门汀(G-Cem);D:酸蚀冲洗类树脂水门汀(Duolink)]制成圆片状试件,固化24 h后,分别测量试件在水储存1周,1、3、6、12个月后的吸水值、溶解值和表面硬度值,并观察表面形貌,每种水门汀每个时间点各5个试件.结果 除材料D外,A在水储存6个月后出现试件碎裂,B和C试件表面在水储存12个月后均出现裂纹;与固化24 h后的硬度值相比,仅材料B的硬度值在水储存12个月后显著降低(P＜0.05).材料D在不同时间段的吸水值均显著低于其他3种材料(P＜0.05),材料D在水储存1个月后、B在3个月后、C在12个月后吸水值达峰值[分别为(40.8±2.5)、(551.3±22.5)、(147.5±8.3) μg/mm3];材料B在水储存3个月后、C在12个月后、D在12个月后溶解值达峰值[分别为(105.3±10.5)、(79.3±6.2)、(23.9±6.9) μg/mm3].结论 在长期水储存过程中,酸蚀冲洗类树脂水门汀的理化性能是最稳定的.
目的 評價不同類型水門汀材料在長期水儲存條件下的理化性能變化,為臨床閤理選擇水門汀材料提供依據.方法 將4種類型的水門汀材料[A:玻璃離子水門汀(Fuji Ⅰ);B:樹脂加彊型玻璃離子水門汀(Fuji Plus);C:自粘接類樹脂水門汀(G-Cem);D:痠蝕遲洗類樹脂水門汀(Duolink)]製成圓片狀試件,固化24 h後,分彆測量試件在水儲存1週,1、3、6、12箇月後的吸水值、溶解值和錶麵硬度值,併觀察錶麵形貌,每種水門汀每箇時間點各5箇試件.結果 除材料D外,A在水儲存6箇月後齣現試件碎裂,B和C試件錶麵在水儲存12箇月後均齣現裂紋;與固化24 h後的硬度值相比,僅材料B的硬度值在水儲存12箇月後顯著降低(P＜0.05).材料D在不同時間段的吸水值均顯著低于其他3種材料(P＜0.05),材料D在水儲存1箇月後、B在3箇月後、C在12箇月後吸水值達峰值[分彆為(40.8±2.5)、(551.3±22.5)、(147.5±8.3) μg/mm3];材料B在水儲存3箇月後、C在12箇月後、D在12箇月後溶解值達峰值[分彆為(105.3±10.5)、(79.3±6.2)、(23.9±6.9) μg/mm3].結論 在長期水儲存過程中,痠蝕遲洗類樹脂水門汀的理化性能是最穩定的.
목적 평개불동류형수문정재료재장기수저존조건하적이화성능변화,위림상합리선택수문정재료제공의거.방법 장4충류형적수문정재료[A:파리리자수문정(Fuji Ⅰ);B:수지가강형파리리자수문정(Fuji Plus);C:자점접류수지수문정(G-Cem);D:산식충세류수지수문정(Duolink)]제성원편상시건,고화24 h후,분별측량시건재수저존1주,1、3、6、12개월후적흡수치、용해치화표면경도치,병관찰표면형모,매충수문정매개시간점각5개시건.결과 제재료D외,A재수저존6개월후출현시건쇄렬,B화C시건표면재수저존12개월후균출현렬문;여고화24 h후적경도치상비,부재료B적경도치재수저존12개월후현저강저(P＜0.05).재료D재불동시간단적흡수치균현저저우기타3충재료(P＜0.05),재료D재수저존1개월후、B재3개월후、C재12개월후흡수치체봉치[분별위(40.8±2.5)、(551.3±22.5)、(147.5±8.3) μg/mm3];재료B재수저존3개월후、C재12개월후、D재12개월후용해치체봉치[분별위(105.3±10.5)、(79.3±6.2)、(23.9±6.9) μg/mm3].결론 재장기수저존과정중,산식충세류수지수문정적이화성능시최은정적.
Objective To evaluate and compare the physical and chemical properties of four different dental cements under long-term water storage.Methods A glass-ionomer cement (A:Fuji Ⅰ),a resin reinforced glass-ionomer (B:Fuji Plus),a self-adhesive resin cement (C:G-Cem),and an etch & rinse resin cement (D:Duolink) were taken as samples.According to ISO 4049,water sorption and solubility of four resin cements under different storage times (1 week,1,3,6 and 12 months) were calculated (n=5),meanwhile their surface Knoop micro hardness values were measured.Results Surface cracks were detected on sample B and C after 12 months.Sample A was fragmentized after 6 months.Sample B showed significantly lower surface hardness after 12 months than it did after the first 24 hours of water storage (P＜ 0.05).Sample D showed significantly lower water sorption than other cements did at all exam time point.The highest water sorption values were observed in Sample D after 1 month [(40.8±2.5) μg/mm3],in Sample B after 3 months [(551.3±22.5) μg/mm3],in Sample C after 12 months [(147.5±8.3) μg/mm3].The highest solubility values were detected in Sample B after 3 months [(105.3± 10.5) μg/mm3],in Sample C after 12 months [(79.3±6.2) μg/mm3],and in Sample D after 12 months [(23.9 ± 6.9) μg/mm3].Conclusions Among the four types of cements,the etch & rinse resin cement showed the best stability of physical and chemical properties under long-term water storage.
