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Constic自粘接流動樹脂機械性能的檢測

發(fā)布時間:2018-09-02 09:31
【摘要】:目的:通過對Constic自粘接流動樹脂、FiltekTM Supreme Ultra樹脂及Spectrum TPH3樹脂三種材料的拉伸強度、抗壓強度、撓曲強度以及剪切粘接強度進(jìn)行比較,為Constic樹脂的臨床應(yīng)用提供理論依據(jù)。方法:首先制備Constic自粘接流動樹脂(A組)、FiltekTM Supreme Ultra樹脂(B組)及Spectrum TPH3樹脂(C組)試件,使用電子式萬能試驗機測試三組材料的拉伸強度、抗壓強度以及撓曲強度值。其次制備Constic自粘接流動樹脂(A組)、Constic自粘接流動樹脂加粘接劑(B組)、FiltekTM Supreme Ultra樹脂(C組)、Spectrum TPH3樹脂(D組)試件,使用電子式萬能試驗機測試四組的剪切粘接強度值,在顯微鏡下觀察試件的斷裂面破壞形式。對數(shù)據(jù)進(jìn)行統(tǒng)計學(xué)分析,統(tǒng)計描述使用(SX?),組間比較使用方差分析,進(jìn)一步兩兩比較使用多個樣本均數(shù)間多重比較的SNK(Student-Newman-Keuls)法檢驗,檢驗水準(zhǔn)為α=0.05(雙側(cè)),P0.05有統(tǒng)計學(xué)意義。結(jié)果:Constic樹脂(A組)、FiltekTM Supreme Ultra樹脂(B組)及Spectrum TPH3樹脂(C組)三組的拉伸強度值分別為31.10±8.35MPa,35.10±6.65MPa,30.00±7.08MPa,A組的強度值與B組、C組相近,三組間無統(tǒng)計學(xué)差異(P0.05)?箟簭姸,A、B、C組結(jié)果分別為287.53±22.99MPa,358.85±32.67MPa,355.72±43.18MPa,A組的抗壓強度值顯著低于B組和C組,與B、C兩組間有統(tǒng)計學(xué)差異(P0.05)。撓曲強度,A、B、C組結(jié)果分別為101.09±18.18MPa,115.05±19.08MPa,109.94±28.23MPa,A、B、C三組間無統(tǒng)計學(xué)差異(P0.05)。剪切粘接強度,Constic樹脂(A組),Constic樹脂加粘接劑(B組),FiltekTM Supreme Ultra樹脂(C組),Spectrum TPH3樹脂(D組)的強度值分別為19.48±1.58MPa,24.22±3.00MPa,20.42±3.09MPa,17.80±2.07MPa,A、C及D組間無統(tǒng)計學(xué)差異(P0.05),B組剪切粘接強度值顯著大于其他三組,B組與A、C、D組間有統(tǒng)計學(xué)差異(P0.05)。在顯微鏡下,觀察到的試件斷裂面的破壞形式主要為粘接界面斷裂,少部分為混合斷裂。結(jié)論:本研究結(jié)果顯示Constic自粘接流動樹脂的拉伸強度、撓曲強度、剪切粘接強度值與其它兩種在臨床中已廣泛應(yīng)用的樹脂相接近。雖然Constic自粘接流動樹脂的抗壓強度略低于其他兩種樹脂,但仍能滿足口腔充填材料的要求,因此可以在臨床中推廣應(yīng)用。
[Abstract]:Objective: to compare the tensile strength, compressive strength, flexural strength and shear bonding strength of Constic self-adhesive flowing resin FiltekTM Supreme Ultra resin and Spectrum TPH3 resin in order to provide theoretical basis for clinical application of Constic resin. Methods: the Constic self-adhesive flow resin (group A) and the Spectrum TPH3 resin (group C) were prepared. The tensile strength, compressive strength and flexural strength of the three groups were tested by electronic universal testing machine. Secondly, the Constic self-adhesive flow resin (group A) was prepared, and the shear bonding strength of the four groups was tested by using electronic universal testing machine, which was made of Constic self-adhesive flow resin plus adhesive agent (group B) and FiltekTM Supreme Ultra resin (group C) and TPH3 resin (group D). The failure form of fracture surface was observed under microscope. The data were analyzed statistically, SX? was used, ANOVA was used in the comparison between groups, and SNK (Student-Newman-Keuls) method was used to test the multiple comparisons between the mean numbers of multiple samples. The test level was 偽 0. 05 (both sides) (P0.05) with statistical significance. Results the tensile strength of group A and group B were 31.10 鹵8.35 MPA and 35.10 鹵6.65 MPA / min, respectively. The tensile strength of group A was similar to that of group B (P 0.05). The tensile strength of group A was similar to that of group B (group A). There was no statistical difference among the three groups (P0.05). The tensile strength of group A was significantly higher than that of group B (P 0.05). The tensile strength of group A was similar to that of group B (30.00 鹵7.08MPA) (P 0.05). The compressive strength of group A was significantly lower than that of group B and group C (287.53 鹵22.99 MPA, 358.85 鹵32.67 MPA, 355.72 鹵43.18 MPA, P0.05). There was no statistical difference among the three groups (101.09 鹵18.18 MPA, 115.05 鹵19.08 MPA, 109.94 鹵28.23 MPA, P 0.05). The shear strength of Supreme Ultra resin (group C) was 19.48 鹵1.58 MPA (24.22 鹵3.00 MPA) and 20.42 鹵3.09 MPA (17.80 鹵2.07 MPa AHG) respectively. There was no statistical difference between group A and D (P0.05). The shear bond strength of group B was significantly higher than that of group B (P 0.05). The shear strength of group B was significantly higher than that of group B (P 0.05), and that of group D was significantly higher than that of group B (group D). (P0.05) the shear bond strength of group B was significantly higher than that of group B (P 0.05), and that of group B was significantly higher than that of group B (P 0.05). There was a significant difference between the two groups (P0.05). Under the microscope, the fracture surface of the specimen is mainly composed of bonding interface fracture, and a small part of the fracture surface is mixed fracture. Conclusion: the results show that the tensile strength, flexural strength and shear bonding strength of Constic self-adhesive flow resin are close to those of the other two kinds of resins which have been widely used in clinic. Although the compressive strength of Constic self-adhesive flow resin is slightly lower than that of the other two kinds of resin, it can still meet the requirements of oral filling material, so it can be popularized and applied in clinic.
【學(xué)位授予單位】:河北醫(yī)科大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2017
【分類號】:R783.1

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 羅有成;孫素;肖玉鴻;;超支化聚酯對牙科樹脂的改性及力學(xué)性能的評價[J];中華口腔醫(yī)學(xué)雜志;2016年04期

2 郭躍新;李m,

本文編號:2218948


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