CAJ | 학술논문

目的：测量4种临床常用 EP 模材的三维形变率。方法：制作母模及个别托盘，使用2种藻酸盐和2种橡胶 EP 模材在母模上分别制取 EP 模材试件（n ＝3），用三维轮廓测量扫描仪进行扫描及建模，通过计算机测量模型3个轴向上标记线段长度的变化。结果：在印模120 min 后，Zhermark 藻酸盐在3个轴向上的变化率分别为3．615％、3．037％、2．836％；CAVEX 藻酸盐的变化率分别为2．836％、3．358％、4．276％；在印模8 h 后，Impregum Penta 聚醚橡胶在3个轴向上的变化率分别为0．039％、0．071％、0．057％；ExpressXT Penta H 加成硅橡胶的变化率分别为0．033％、0．088％、0．084％。结论：4种材料线性尺寸变化率均达到 ISO1563∶1990标准，藻酸盐类 EP 模材在3个轴向上的形变率均明显大于橡胶类 EP 模材。
목적：측량4충림상상용 EP 모재적삼유형변솔。방법：제작모모급개별탁반，사용2충조산염화2충상효 EP 모재재모모상분별제취 EP 모재시건（n ＝3），용삼유륜곽측량소묘의진행소묘급건모，통과계산궤측량모형3개축향상표기선단장도적변화。결과：재인모120 min 후，Zhermark 조산염재3개축향상적변화솔분별위3．615％、3．037％、2．836％；CAVEX 조산염적변화솔분별위2．836％、3．358％、4．276％；재인모8 h 후，Impregum Penta 취미상효재3개축향상적변화솔분별위0．039％、0．071％、0．057％；ExpressXT Penta H 가성규상효적변화솔분별위0．033％、0．088％、0．084％。결론：4충재료선성척촌변화솔균체도 ISO1563∶1990표준，조산염류 EP 모재재3개축향상적형변솔균명현대우상효류 EP 모재。
Objective:To study the 3D accuracy of 4 impression materials.Methods:A metal mould with a custom tray was prepared for the measurement.Impression samples of 2 alginate and 2 rubber impression materials were prepared in the metal mould(n =3)re-spectively.The length of three tagged lines,along X,Y,Z axis directions of the samples was measured with a 3D optical scanner.Re-sults:120 min after sampling the variable rates of the length along X,Y,Z axis of Zhermark alginate samples were 3.615%,3.037%and 2.836%,those of CAVEX alginate samples were 2.836%,3.358% and 4.276% respectively;8 h after sampling the variable rates of Impregum Penta polyether rubber samples were 0.039%,0.071% and 0.057%,those of ExpressXT Penta H addition-curing silicone rubber samples were 0.033%,0.088% and 0.084% respectively.Conclusion:The variable rates of the 4 impression materi-als are in accordance with ISO1563∶1990.The variable rate of alginate impression material is greater than that of rubber.