暨南大学学报（自然科学与医学版）
暨南大學學報（自然科學與醫學版）
기남대학학보（자연과학여의학판）
JOURNAL OF JINAN UNIVERSITY（NATURAL SCIENCE & MEDICINE EDITION）
2014年
6期
538-542
,共5页
空间标记法%体积变化率%直接测量%印模形变%三维测量
空間標記法%體積變化率%直接測量%印模形變%三維測量
공간표기법%체적변화솔%직접측량%인모형변%삼유측량
space-labeling%volumetric change rates%direct measurement%impression deforma-tion%three-dimensional measurement
目的：使用三维标记法测定4种常用印模材体积变化率．方法：每种印模材在金属母模上制取3份试件后使用形状轮廓扫描仪扫描及建模，通过专用软件在试件模型上划出标记空间，并测量不同存放时间标记空间内体积，计算试件的体积变化率．结果：CAVEX 藻酸盐在15、180 min 时体积变化率分别为1.432％、8.343％；Zher-mark 藻酸盐在15、180 min 时体积变化率分别为1.772％、7.580％；ExpressXT Penta H 硅橡胶在1、36 h 体积变化率分别为0.047％、0.364％；Impregum Penta 聚醚橡胶在1、36 h 体积变化率分别为0.012％、0.336％．2种藻酸盐体积变化率间无统计学差异（P ＞0.05），2种人工合成橡胶体积变化率间的差值无统计学意义（P ＞0.05），藻酸盐与人工合成橡胶体积变化率间差值具有统计学意义（P ＜0.01）．结论：藻酸盐类印模材体积变化率大于人工合成橡胶类印模材；三维空间标记法适用于印模试件形变的直接测量．
目的：使用三維標記法測定4種常用印模材體積變化率．方法：每種印模材在金屬母模上製取3份試件後使用形狀輪廓掃描儀掃描及建模，通過專用軟件在試件模型上劃齣標記空間，併測量不同存放時間標記空間內體積，計算試件的體積變化率．結果：CAVEX 藻痠鹽在15、180 min 時體積變化率分彆為1.432％、8.343％；Zher-mark 藻痠鹽在15、180 min 時體積變化率分彆為1.772％、7.580％；ExpressXT Penta H 硅橡膠在1、36 h 體積變化率分彆為0.047％、0.364％；Impregum Penta 聚醚橡膠在1、36 h 體積變化率分彆為0.012％、0.336％．2種藻痠鹽體積變化率間無統計學差異（P ＞0.05），2種人工閤成橡膠體積變化率間的差值無統計學意義（P ＞0.05），藻痠鹽與人工閤成橡膠體積變化率間差值具有統計學意義（P ＜0.01）．結論：藻痠鹽類印模材體積變化率大于人工閤成橡膠類印模材；三維空間標記法適用于印模試件形變的直接測量．
목적：사용삼유표기법측정4충상용인모재체적변화솔．방법：매충인모재재금속모모상제취3빈시건후사용형상륜곽소묘의소묘급건모，통과전용연건재시건모형상화출표기공간，병측량불동존방시간표기공간내체적，계산시건적체적변화솔．결과：CAVEX 조산염재15、180 min 시체적변화솔분별위1.432％、8.343％；Zher-mark 조산염재15、180 min 시체적변화솔분별위1.772％、7.580％；ExpressXT Penta H 규상효재1、36 h 체적변화솔분별위0.047％、0.364％；Impregum Penta 취미상효재1、36 h 체적변화솔분별위0.012％、0.336％．2충조산염체적변화솔간무통계학차이（P ＞0.05），2충인공합성상효체적변화솔간적차치무통계학의의（P ＞0.05），조산염여인공합성상효체적변화솔간차치구유통계학의의（P ＜0.01）．결론：조산염류인모재체적변화솔대우인공합성상효류인모재；삼유공간표기법괄용우인모시건형변적직접측량．
Aim:To investigate the dimensional changes of 4 impression materials.Methods:An alu-minum alloy model and a custom tray were fabricated.Impression samples with 4 impression materials (including 2 alginate materials and 2 elastomers)were made from a reference model.All samples were scanned and evaluated for volumetric changes by using a 3D microscope measurement with space labe-ling.Results:The volumetric change rate of CAVEX alginate samples was 1.432% in 15mins,and was 8.343% in 180 mins;while the volumetric change rate of Zhermark alginate samples was 1.772% in 15mins,and was 7.580% in 180mins;however,the volumetric change rate of ExpressXT Penta H sili-cone samples was 0.047% in 1hour,and was 0.364% in 36 hours;while that of Impregum Penta poly-ether samples was 0.012% in 1hour,and was 0.336% in 36 hours.There was no statistical difference (P >0.05)in volumetric change rates between CAVEX and Zhermark alginate samples,and also no sta-tistical difference(P >0.05)in volumetric change rates between ExpressXT Penta H silicone and Imp-regum Penta polyether samples either.Statistical differences of volumetric change rates were found be-tween alginate materials and elastomers.Conclusion:Dimensional stability of elastomeric materials was better than that of alginate materials.The space-labeling method is a feasible and direct measurement for dimensional staability of impression materials.
