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Analysis of surface characteristics of ceramic and tooth structures by plasma treatment and its effect on adhesion
플라즈마 처리가 세라믹 및 치질의 표면 특성과 접착력에 미치는 효과 분석

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dc.contributor.advisor조병훈-
dc.contributor.author한금준-
dc.date.accessioned2017-10-27T17:17:22Z-
dc.date.available2017-10-27T17:17:22Z-
dc.date.issued2017-08-
dc.identifier.other000000145241-
dc.identifier.urihttps://hdl.handle.net/10371/137205-
dc.description학위논문 (박사)-- 서울대학교 대학원 치의학대학원 치의과학과, 2017. 8. 조병훈.-
dc.description.abstractObjective : Atmospheric pressure plasma can easily change the surface properties of substrates using a low cost and environment-friendly dry process of a simple system. For adhesion, plasma can also be used to implement chemically active species on the substrate surface by inducing polar functional groups or through ion bombardment. The purpose of this study is to evaluate the effectiveness of plasma polymer coating on the bond strength of composite resin to ceramic, as well as the direct effects of plasma on the adhesion of resin composite to tooth structures and the durability of the bond.
Methods : The effect of plasma polymer coating was evaluated using shear bond strength (SBS) and micro-shear bond strength (MSBS) tests. The plasma coated surfaces were characterized using Fourier transform infra-red (FTIR) spectrophotometer in an attenuated total reflectance (ATR) mode, X-ray photoelectron spectroscopy (XPS), and contact angle measurements. The fractured surfaces were evaluated using a stereomicroscope and scanning electron microscopy (SEM) with energy dispersive spectroscopy (EDS), and also the chemical structure and composition of the surface were verified using Focused ion beam (FIB), transmission electron microscopy (TEM) and EDS respectively.
The direct effect of plasma on the adhesion of resin composite to dentin was evaluated using micro-tensile bond strength (MTBS) tests, before and after thermocycling (TC). The bond strength data were interpreted using Weibull analysis. The hybrid layer formation at the adhesive/dentin interface was characterized by micro-Raman spectroscopy and SEM analyses.
Results : Among the groups treated with plasma polymer coating, the SBS of the adhesive to the ceramic surface pre-treated sequentially with water and triethyleneglycol dimethacrylate (TEGDMA) plasma in helium gas was significantly higher than that of the adhesive to the untreated surface (p < 0.05). Also, the SBS obtained with the plasma deposition of TEGDMA at the highest input voltage was statistically similar to the gold standard by HF etching and silane coupling agent coating. Plasma deposition of 1,3-butadiene was effective at flow rates of more than 2 standard cubic centimeters (sccm). The SBS obtained with the sequential plasma deposition of hexamethyldisiloxane (HMDSO) and benzene was statistically similar to the gold standard by HF etching and silane coupling agent coating. The sequential plasma deposition of TMS and benzene also showed about two times higher bond strength values than that of Z-Prime Plus.
The plasma polymer deposition of benzene and 1,3-butadiene improved the MSBS of resin composite to enamel (p < 0.05). The procedure improved enamel adhesion but failed to improve durability in terms of mean bond strength. However, the plasma polymer deposition increased the Weibull modulus (m) after TC, which indicated that the scatter of the bond strength was narrowed with respect to durability. However, future studies to evaluate solubility of the plasma-deposited polymers will be necessary in the point of toxicity.
In the dentin, the plasma-drying groups presented significantly higher bond strength than the wet bonding and dry bonding groups, either with or without rewetting (p < 0.05). Micro-Raman spectral analysis indicated that plasma-drying improved the penetration and polymerization efficacy of the adhesive. Even after TC, the bond strength of plasma-drying group did not reduce.
Conclusion : Plasma polymer coating technique could contribute to enhance the bonding of conventional dental adhesives on the surface of ceramic and tooth structures. In particular, 1,3-butadiene or benzene enhanced the adhesion of composite resin through the simple deposition of C=C double bonds.
On the dentin surface, the plasma treatment using a He gas, with or without rewetting, improved the adhesion of resin composite to dentin and its durability.
Plasma application in adhesion of resin composite to the ceramic and tooth structures will be a promising method.
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dc.description.tableofcontents1. Introduction 1
2. Material and Method 10
1) Adhesion to Ceramic 10
1.1. The effect of plasma polymer coating using non-thermal atmospheric pressure plasma (NT-APP) jet on the shear bond strength of composite resin to ceramic 10
1.1.1 Equipment Set-up (NT-APP) 11
1.1.2 Adhesion Test 11
1.1.3 Surface Characterization 14
1.1.4 Statistical Analysis 14
1.2 The effect of the applied power of non-thermal atmospheric pressure plasma (NT-APP) jet on the adhesion of composite resin to dental ceramic 15
1.2.1 Equipment Set-up (NT-APP) 15
1.2.2 Adhesion Test 15
1.2.3 Fracture Analysis 17
1.2.4 Surface Characterization 18
1.2.5 Statistical Analysis 19
1.3 1,3-Butadiene as adhesion promoter between composite resin and dental ceramic in a floating electrode dielectric barrier discharge(FE-DBD) jet 19
1.3.1 Equipment Set-up (FE-DBD) 19
1.3.2 Adhesion Test 20
1.3.3 Fracture Analysis 21
1.3.4 Surface Characterization 22
1.3.5 Statistical Analysis 23
1.4 Sequential deposition of hexamethyldisiloxane and benzene in floating electrode dielectric barrier discharge(FE-DBD) jet adhesion to dental ceramic Experimental set-up (FE-DBD) 23
1.4.1 Experimental set-up (FE-DBD) 23
1.4.2 Adhesion test 24
1.4.3 Fracture analysis 25
1.4.4 Surface characterization 25
1.4.5 Microscopic observation of bonded interface 26
1.4.6 Statistical Analysis 26
1.5 Promotion of resin bonding to dental zirconia ceramic using plasma deposition of tetramethylsilane and benzene 26
1.5.1 Specimen Preparation 26
1.5.2 Experimental set-up 27
1.5.3 Adhesion test 27
1.5.4 Surface characterization 28
1.5.5 Statistical Analysis 28
2) Adhesion to tooth 28
2.1 Effect of plasma deposition using low-power/non-thermal atmospheric pressure plasma(NT-APP) on promoting adhesion of composite resin to enamel 28
2.1.1 Experimental set-up 29
2.1.2 Adhesion test 29
2.1.3 Fracture Analysis 31
2.1.4 Contact Angle Measurement 31
2.1.5 Surface characterization 31
2.1.6 Statistical Analysis 32
2.2 Effects of non-thermal atmospheric pressure pulsed plasma on the adhesion and durability of resin composite to dentin 33
2.2.1 Generation of non-thermal atmospheric pressure plasma jet 33
2.2.2 Dentin specimen preparation and adhesion procedure 33
2.2.3 Micro-tensile bond strength testing 34
2.2.4 Examining the adhesive interface and fracture mode using scanning electron microscopy 35
2.2.5 Statistical Analysis 35
2.3 Promotion of Adhesive Penetration and Resin Bond Strength to Dentin using Non-thermal Atmospheric Pressure Plasma 36
2.3.1 Dentin Specimen Preparation 36
2.3.2 Adhesion Procedure and Plasma Treatment 36
2.3.3 Microtensile Bond Strength Test 37
2.3.4 Micro-Raman Spectroscopy 38
2.3.5 Scanning Electron Microscopy 37
2.3.6 Statistical analysis 38
3. Result 39
1) Adheison to ceramic 39
1.1 The effect of plasma polymer coating using non-thermal atmospheric pressure plasma (NT-APP) jet on the shear bond strength of composite resin to ceramic 39
1.2 The effect of the applied power of non-thermal atmospheric pressure plasma (NT-APP) jet on the adhesion of composite resin to dental ceramic 41
1.3 1,3-Butadiene as adhesion promoter between composite resin and dental ceramic in a floating electrode dielectric barrier discharge(FE-DBD) jet 43
1.4 Sequential deposition of hexamethyldisiloxane and benzene in floating electrode dielectric barrier discharge(FE-DBD) jet adhesion to dental ceramic 44
1.5 Promotion of resin bonding to dental zirconia ceramic using plasma deposition of tetramethylsilane and benzene 46
2) Adheison to tooth 47
2.1 Effect of plasma deposition using low-power/non-thermal atmospheric pressure plasma on promoting adhesion of composite resin to enamel 47
2.2 Effects of non-thermal atmospheric pressure pulsed plasma on the adhesion and durability of resin composite to dentin 49
2.3 Promotion of Adhesive Penetration and Resin Bond Strength to Dentin using Non-thermal Atmospheric Pressure Plasma 50
4. Discussion 52
1) Adhesion to ceramic 52
1.1 The effect of plasma polymer coating using non-thermal atmospheric pressure plasma (NT-APP) jet on the shear bond strength of composite resin to ceramic 52
1.2 The effect of the applied power of non-thermal atmospheric pressure plasma (NT-APP) jet on the adhesion of composite resin to dental ceramic 56
1.3 1,3-Butadiene as adhesion promoter between composite resin and dental ceramic in a floating electrode dielectric barrier discharge(FE-DBD) jet 61
1.4 Sequential deposition of hexamethyldisiloxane and benzene in floating electrode dielectric barrier discharge(FE-DBD) jet adhesion to dental ceramic 65
1.5 Promotion of resin bonding to dental zirconia ceramic using plasma deposition of tetramethylsilane and benzene 67
2) Adhesion to tooth 72
2.1 Effect of plasma deposition using low-power/non-thermal atmospheric pressure plasma on promoting adhesion of composite resin to enamel 72
2.2 Effects of non-thermal atmospheric pressure pulsed plasma on the adhesion and durability of resin composite to dentin 76
2.3 Promotion of Adhesive Penetration and Resin Bond Strength to Dentin using Non-thermal Atmospheric Pressure Plasma 81
5. Conclusion 86
5.1 Adhesion to ceramic 86
5.2 Adhesion to tooth 86
6. References 88
Figures and Tables 105
Abstract (in Korean) 154
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dc.formatapplication/pdf-
dc.format.extent6206364 bytes-
dc.format.mediumapplication/pdf-
dc.language.isoko-
dc.publisher서울대학교 대학원-
dc.subjectPlasma treatment-
dc.subjectCeramic-
dc.subjectTooth structures-
dc.subjectAdhesion-
dc.subjectPolymer deposition-
dc.subjectDurability-
dc.subject.ddc617.6-
dc.titleAnalysis of surface characteristics of ceramic and tooth structures by plasma treatment and its effect on adhesion-
dc.title.alternative플라즈마 처리가 세라믹 및 치질의 표면 특성과 접착력에 미치는 효과 분석-
dc.typeThesis-
dc.description.degreeDoctor-
dc.contributor.affiliation치의학대학원 치의과학과-
dc.date.awarded2017-08-
Appears in Collections:
College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dental Science(치의과학과)Theses (Ph.D. / Sc.D._치의과학과)
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