TY - JOUR
T1 - Finite element analysis of thermo-debonding mechanism in dental composites
AU - Lee, Sheng Yang
AU - Chiang, Hsin Chih
AU - Lin, Che Tong
AU - Huang, Haw Ming
AU - Dong, De Rei
N1 - 被引用次數:21
Export Date: 9 August 2016
CODEN: BIMAD
通訊地址: Lee, S.-Y.; Graduate Institute, Oral Rehabilitation Sciences, Taipei Medical College, 280 Wu-Hsing Street, Taipei, Taiwan; 電子郵件: [email protected]
化學物質/CAS: Barium Compounds; Composite Resins; Polyethylene Glycols; Polymethacrylic Acids; Silicates; triethylene glycol dimethacrylate, 109-16-0
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Chapter 1; Miles, W., Tanner, K.E., (1992) Strain Measurement in Biomechanics, pp. 169-182. , London: Chapman & Hall; Söderholm, K.J., (1985) Filler Systems and Resin Interface, pp. 139-159. , The Netherlands: Peter Szulc Publishing Co; Reddy, J.N., (1984) An Introduction to Finite Element Method, , Taipei: McGraw-Hill Inc, International Taiwan Edition by Rainboe-Bridge Book Company (Chapter 1); Mohsen, M., Craig, R.G., Effect of silanation of fillers on their dispersability by monomer systems (1995) J Oral Rehabil, 22, pp. 183-189; Katona, T.R., Winkler, M.M., Stress analysis of a bulk-filled class V light-cured composite restoration (1994) J Dent Res, 73, pp. 1470-1477; Winkler, M.M., Katona, T.R., Paydar, N.H., Finite element stress analysis of three filling techniques for class V light-cured composite restoration (1996) J Dent Res, 75, pp. 1477-1483; Tummala, R.R., Friedberg, A.L., Thermal expansion of composite materials (1970) J Appl Phys, 41, pp. 5104-5107
PY - 2000/7
Y1 - 2000/7
N2 - Finite element method (FEM) has been extensively used for evaluating interfacial status inside biomaterials. This study using FEM was designed to evaluate the thermal stress behavior of a filler-matrix interface. The results were then compared to those of a previous study obtained by a laser thermoacoustic technique (LTAT). The experimental systems (75/25 Bis-GMA/TEGDMA resin reinforced with 0, 25, 50, and 75wt% 8-μm silanized/unsilanized BaSiO6) as used in the previous study were modeled in this study. The established finite element models were based on coefficient of thermal expansion (CTE) Mismatch Phenomenon. The mechanical properties of the silane coupling agent, such as elastic modulus and thermal expansion coefficient used in the silanized model, were assumed to have optimal heat flux transfer. A third (imaginary) material was proposed to block the transfer of thermal stress between the filler and matrix in the unsilanized model. The thermal load simulation was based on steady-state thermal analysis. The results showed that: (1) The strain energy and interfacial shearing stress calculated from FEM validate the results from the previous LTAT study. (2) Comparing the stress distribution of silanized and unsilanized FEM models, the acoustic signals in LTAT study are mainly derived from debonding of the filler-matrix interface of silanized specimens, and from the matrix area of unsilanized specimens. Based on results to date, we conclude that the finite element method may be a powerful tool for exploring thermoacoustic mechanisms of dental composites. Copyright (C) 2000 Elsevier Science Ltd.
AB - Finite element method (FEM) has been extensively used for evaluating interfacial status inside biomaterials. This study using FEM was designed to evaluate the thermal stress behavior of a filler-matrix interface. The results were then compared to those of a previous study obtained by a laser thermoacoustic technique (LTAT). The experimental systems (75/25 Bis-GMA/TEGDMA resin reinforced with 0, 25, 50, and 75wt% 8-μm silanized/unsilanized BaSiO6) as used in the previous study were modeled in this study. The established finite element models were based on coefficient of thermal expansion (CTE) Mismatch Phenomenon. The mechanical properties of the silane coupling agent, such as elastic modulus and thermal expansion coefficient used in the silanized model, were assumed to have optimal heat flux transfer. A third (imaginary) material was proposed to block the transfer of thermal stress between the filler and matrix in the unsilanized model. The thermal load simulation was based on steady-state thermal analysis. The results showed that: (1) The strain energy and interfacial shearing stress calculated from FEM validate the results from the previous LTAT study. (2) Comparing the stress distribution of silanized and unsilanized FEM models, the acoustic signals in LTAT study are mainly derived from debonding of the filler-matrix interface of silanized specimens, and from the matrix area of unsilanized specimens. Based on results to date, we conclude that the finite element method may be a powerful tool for exploring thermoacoustic mechanisms of dental composites. Copyright (C) 2000 Elsevier Science Ltd.
KW - Debonding
KW - Dental composite
KW - Finite element analysis
KW - Thermal stress
KW - Barium compounds
KW - Elastic moduli
KW - Finite element method
KW - Heat flux
KW - Heat transfer
KW - Plastics fillers
KW - Reinforced plastics
KW - Resins
KW - Shear stress
KW - Thermal expansion
KW - Thermo-debonding mechanism
KW - Dental composites
KW - biomaterial
KW - resin
KW - accuracy
KW - article
KW - biomechanics
KW - drug analysis
KW - enamel
KW - experimental model
KW - intermethod comparison
KW - priority journal
KW - shear stress
KW - technique
KW - temperature
KW - young modulus
KW - Acoustics
KW - Barium Compounds
KW - Composite Resins
KW - Elasticity
KW - Heat
KW - Lasers
KW - Materials Testing
KW - Mathematics
KW - Microscopy, Electron, Scanning
KW - Polyethylene Glycols
KW - Polymethacrylic Acids
KW - Silicates
KW - Stress, Mechanical
UR - http://www.scopus.com/inward/record.url?scp=0034100375&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0034100375&partnerID=8YFLogxK
U2 - 10.1016/S0142-9612(99)00217-3
DO - 10.1016/S0142-9612(99)00217-3
M3 - Article
C2 - 10850925
AN - SCOPUS:0034100375
SN - 0142-9612
VL - 21
SP - 1315
EP - 1326
JO - Biomaterials
JF - Biomaterials
IS - 13
ER -