口腔材料器械杂志
口腔材料器械雜誌
구강재료기계잡지
CHINESE JOURNAL OF DENTAL MATERIALS AND DEVICES
2015年
2期
84-87
,共4页
丙烯酸树脂%喷砂%MMA浸润%表面性状%粘接强度%粗糙度
丙烯痠樹脂%噴砂%MMA浸潤%錶麵性狀%粘接彊度%粗糙度
병희산수지%분사%MMA침윤%표면성상%점접강도%조조도
Acrylic resin%Sandblasting%MMA infiltration%Surface properties%Bonding strength%Roughness
目的：探讨不同表面处理方式对丙烯酸树脂表面性状和粘接强度的影响。方法制备硅橡胶与丙烯酸树脂构成的重叠联合模型。根据树脂条的不同表面处理方式，将模型随机分为4组：对照组、MMA浸润组、喷砂组、MMA浸润+喷砂组。用扫描电镜观察各组树脂处理后的表面形态变化，用粗糙度仪检测其粗糙度，万能材料试验机测定树脂条和硅橡胶之间的粘接强度。结果1.电镜观察显示，未经处理的树脂条表面打磨痕迹明显，经过MMA浸润后，表面出现溶解的痕迹，经过喷砂后，表面粗糙凸凹不平；2.粗糙度：喷砂组（3.12±0.02）μm和MMA浸润+喷砂组（3.11±0.01）μm>对照组（0.73±0.01）μm和MMA浸润组（0.71±0.01）μm，且差异有统计学意义（P <0.05）；3.粘接强度：MMA浸润+喷砂组（2.34±0.03）MPa >喷砂组（2.02±0.01）MPa >MMA浸润组（1.81±0.02）MPa >对照组（1.50±0.01） MPa，且差异有统计学意义（P <0.05）。结论MMA单体浸润与喷砂的处理方式可以使丙烯酸树脂表面的形貌发生变化，更有利于硅橡胶与丙烯酸树脂的结合，获到良好的粘接效果，可在临床推广使用。
目的：探討不同錶麵處理方式對丙烯痠樹脂錶麵性狀和粘接彊度的影響。方法製備硅橡膠與丙烯痠樹脂構成的重疊聯閤模型。根據樹脂條的不同錶麵處理方式，將模型隨機分為4組：對照組、MMA浸潤組、噴砂組、MMA浸潤+噴砂組。用掃描電鏡觀察各組樹脂處理後的錶麵形態變化，用粗糙度儀檢測其粗糙度，萬能材料試驗機測定樹脂條和硅橡膠之間的粘接彊度。結果1.電鏡觀察顯示，未經處理的樹脂條錶麵打磨痕跡明顯，經過MMA浸潤後，錶麵齣現溶解的痕跡，經過噴砂後，錶麵粗糙凸凹不平；2.粗糙度：噴砂組（3.12±0.02）μm和MMA浸潤+噴砂組（3.11±0.01）μm>對照組（0.73±0.01）μm和MMA浸潤組（0.71±0.01）μm，且差異有統計學意義（P <0.05）；3.粘接彊度：MMA浸潤+噴砂組（2.34±0.03）MPa >噴砂組（2.02±0.01）MPa >MMA浸潤組（1.81±0.02）MPa >對照組（1.50±0.01） MPa，且差異有統計學意義（P <0.05）。結論MMA單體浸潤與噴砂的處理方式可以使丙烯痠樹脂錶麵的形貌髮生變化，更有利于硅橡膠與丙烯痠樹脂的結閤，穫到良好的粘接效果，可在臨床推廣使用。
목적：탐토불동표면처리방식대병희산수지표면성상화점접강도적영향。방법제비규상효여병희산수지구성적중첩연합모형。근거수지조적불동표면처리방식，장모형수궤분위4조：대조조、MMA침윤조、분사조、MMA침윤+분사조。용소묘전경관찰각조수지처리후적표면형태변화，용조조도의검측기조조도，만능재료시험궤측정수지조화규상효지간적점접강도。결과1.전경관찰현시，미경처리적수지조표면타마흔적명현，경과MMA침윤후，표면출현용해적흔적，경과분사후，표면조조철요불평；2.조조도：분사조（3.12±0.02）μm화MMA침윤+분사조（3.11±0.01）μm>대조조（0.73±0.01）μm화MMA침윤조（0.71±0.01）μm，차차이유통계학의의（P <0.05）；3.점접강도：MMA침윤+분사조（2.34±0.03）MPa >분사조（2.02±0.01）MPa >MMA침윤조（1.81±0.02）MPa >대조조（1.50±0.01） MPa，차차이유통계학의의（P <0.05）。결론MMA단체침윤여분사적처리방식가이사병희산수지표면적형모발생변화，경유리우규상효여병희산수지적결합，획도량호적점접효과，가재림상추엄사용。
ObjectiveTo study the influence of four kinds of resin surface treatment methods on the surface properties and bonding strength of acrylic resin.MethodsFirst, the silicone rubber /acrylic resin overlap joint model was prepared. Acrylic resin were randomly divided into 4 groups: control group, MMA group, Sandblasting group, MMA infiltration + sandblasting group. The change of surface properties of each resin was observed by scan electron microscope (SEM). The roughness of each group was measured by Hommel W5 portable roughness instrument. The bonding strength between resin and silicone rubber of each group was detected by a universal material testing machine.Results(1) SEM results showed that untreated resin surface had obvious grinding traces, and the trace was dissolved after the infiltration of MMA, and the surface was rough and uneven after sandblasting. (2) The roughness was as follows: the sandblasting group(3.12±0.02), MMA infiltration + sandblasting group(3.11±0.01) >the control group(0.73±0.01), MMA infiltration group(0.71±0.01). The difference was statistically significant (P < 0.05). (3) The bonding strength was as follows: MMA infiltration + sandblasting group(2.34±0.03) > sandblasting group(2.02±0.01) >MMA infiltration group(1.81±0.02) > control group(1.50±0.01). The difference was statistically significant (P< 0.05).ConclusionMMA monomer infiltration made the sand surface of acrylic resin produced different surface morphology, and thus improved the bonding between silicone rubber and acrylic resin, indicating it can be used widely in clinical.
