CAJ | 학술논문

目的：探索一种用氰基丙烯酸盐强化石膏材料的简单方法，并研究氰基丙烯酸盐溶液的浓度对牙科石膏材料强度的影响。方法将标准石膏样本制备成35mm×4mm×4mm的长条形；将氰基丙烯酸正丁酯制成20%和30%的溶液并测定溶液黏度。将干燥后的牙科石膏样本浸入氰基丙烯酸正丁酯溶液中8h，再置于室温下干燥。检测样品的弹性模量、断裂韧性、抗压强度、布氏硬度、双轴强度，所得的数据采用OriginPro8软件进行统计分析。结果黏性测定表明该溶液为牛顿流体，48h内黏性小幅上升，但在室温下仍接近水，可用于浸润石膏，加强其强度。浸润氰基丙烯酸盐溶液的石膏具有良好的理化性能，石膏的双轴强度、断裂韧性、抗压强度和布氏硬度分别提高了39%、30%、63%和18%。结论氰基丙烯酸盐可以提高石膏模型强度，具有潜在的临床应用价值。
목적：탐색일충용청기병희산염강화석고재료적간단방법，병연구청기병희산염용액적농도대아과석고재료강도적영향。방법장표준석고양본제비성35mm×4mm×4mm적장조형；장청기병희산정정지제성20%화30%적용액병측정용액점도。장간조후적아과석고양본침입청기병희산정정지용액중8h，재치우실온하간조。검측양품적탄성모량、단렬인성、항압강도、포씨경도、쌍축강도，소득적수거채용OriginPro8연건진행통계분석。결과점성측정표명해용액위우돈류체，48h내점성소폭상승，단재실온하잉접근수，가용우침윤석고，가강기강도。침윤청기병희산염용액적석고구유량호적이화성능，석고적쌍축강도、단렬인성、항압강도화포씨경도분별제고료39%、30%、63%화18%。결론청기병희산염가이제고석고모형강도，구유잠재적림상응용개치。
Objective To explore a simple but novel method of strengthening gypsum material by cyanoacrylate infiltration. To evaluate the influence of cyanoacrylate on the mechanical properties of dental gypsum models. Methods Gypsum specimens were polished to the dimension of 35 mm×4 mm×4 mm. Butyl-cyanoacrylate was diluted with chloroform at different concentrations, namely 20% and 30% cyanoacrylate. Gypsum specimens were infiltrated by diluting one component of cyanoacrylate at different concentrations for 8 h and then dried for analysis. The changes in elastic modulus, fracture toughness, compressive strength, biaxial strength, brinell hardness were measured. The data were analyzed using software OriginPro 8. Results The viscosity measurements indicated that diluted cyanoacrylate were Newtonian fluids and the viscosity increased slightly within the 48 hours of preparation but still similar as water at room temperature, which could be used to infiltrating gypsum. The gypsum infiltrated with cyanoacrylate exhibited good physicochemical properties. The biaxial strength, fracture toughness, compressive strength and brinell hardness of the gypsum were improved by 39%, 30%, 63% and 18%, respectively. Conclusion Cyanoacrylate can significantly improve the strength of gypsum model which indicates the potential clinical application.