## 摘要

原文 | 英語 |
---|---|

頁（從 - 到） | 555-565 |

頁數 | 11 |

期刊 | Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine |

卷 | 223 |

發行號 | 5 |

DOIs | |

出版狀態 | 已發佈 - 2009 |

## 指紋

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*Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine*,

*223*(5), 555-565. https://doi.org/10.1243/09544119JEIM538

**Reductions in the effects of damping on stress concentration in premolars by post-endodontic restorations: A non-linear finite element study.** / Lo, Y.-J.; Chang, W.-J.; Lee, S.-Y.; Chang, K.-J.; Lin, C.-T.; Huang, H.-M.

研究成果: 雜誌貢獻 › 文章 › 同行評審

*Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine*, 卷 223, 編號 5, 頁 555-565. https://doi.org/10.1243/09544119JEIM538

**Reductions in the effects of damping on stress concentration in premolars by post-endodontic restorations: A non-linear finite element study**. 於: Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine. 2009 ; 卷 223, 編號 5. 頁 555-565.

}

TY - JOUR

T1 - Reductions in the effects of damping on stress concentration in premolars by post-endodontic restorations: A non-linear finite element study

AU - Lo, Y.-J.

AU - Chang, W.-J.

AU - Lee, S.-Y.

AU - Chang, K.-J.

AU - Lin, C.-T.

AU - Huang, H.-M.

N1 - Export Date: 9 August 2016 CODEN: PIHME 通訊地址: Huang, H. -M.; Graduate Institute of Biomedical Materials and Engineering, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan; 電子郵件： hhm@tmu.edu.tw 參考文獻: Qing, H., Zhu, Z.M., Chao, Y.L., Zhang, W.Q., In vitro evaluation of the fracture resistance of anterior endodontically treated teeth restored with glass fiber and zircon posts (2007) J. Prosthetic Dentistry, 97, pp. 93-98; Sirimai, S., Riis, D.N., Morgano, S.M., An In vitro study of the fracture resistance and the incidence of vertical root fracture of pulpless teeth restored with six post-and-core systems (1999) J. Prosthetic Dentistry, 81, pp. 262-269; Akkayan, B., Dent, D.M., Gülmez, T., Resistance to fracture of endodontically treated teeth restored with different post systems (2002) J. Prosthetic Dentistry, 87, pp. 431-437; Creugers, N.H., Mentink, A.G., Kayser, A.F., An analysis of durability data on post and core restorations (1993) J. Dentistry, 21, pp. 281-284; Hurmuzlu, F., Kiremitci, A., Serper, A., Altundaşar, E., Siso, S., Fracture resistance of endodontically treated premolars restored with ormocer and packable composite (2003) J. Endodontics, 29, pp. 838-840; Ichim, I., Li, Q., Li, W., Swain, M.V., Kieser, J., Modelling of fracture behaviour in biomaterials (2007) Biomaterials, 28, pp. 1317-1326; Ichim, I., Li, Q., Li, W., Loughran, J., Swain, M. V., and Kieser, J. Restoration of non-carious cervical lesions Part I. Modelling of restorative fracture. Dent. Mater., 2007, 23, 1553-1561Goto, Y., Nicholls, J.I., Phillips, K.M., Junge, T., Fatigue resistance of endodontically treated teeth restored with three dowel-and-core systems (2005) J. Prosthetic Dentistry, 93, pp. 45-50; Colakoglu, M., Description of fatigue damage using a damping monitoring technique (2003) Turk. J. Engng Environ Sci, 27, pp. 125-130; Khan, A.S., Phillips, M.J., Tanner, K.E., Wong, F.S., Comparison of the visco-elastic behavior of a pre-impregnated reinforced glass fiber composite with resin-based composite (2008) Dent. Mater, 24, pp. 1534-1538; Papadogiannis, Y., Lakes, R.S., Palaghias, G., Helvatjoglu- Antoniades, M., Papadogiannis, D., Fatigue of packable dental composites (2007) Dent. Mater, 23, pp. 235-242; Newman, M.P., Yaman, P., Dennison, J., Rafter, M., Billy, E., Fracture resistance of endodonti-cally treated teeth restored with composite posts (2003) J. Prosthetic Dentistry, 89, pp. 360-367; Pierrisnard, L., Bohin, F., Renault, P., Barquins, M., Corono-radicular reconstruction of pulpless teeth: A mechanical study using finite element analysis (2002) J. Prosthetic Dentistry, 88, pp. 442-448; Mollersten, L., Lockowandt, P., and Linden, L. A. A comparison of strengths of five core and post-and-core systems. Quintessence Int., 2002, 33, 140-149Asmussen, E., Peutzfeldt, A., Heitmann, T., Stiffness, elastic limit, and strength of newer types of endodontic posts (1999) J. Dentistry, 27, pp. 275-278; Cormier, C.J., Burns, D.R., Moon, P., In vitro comparison of the fracture resistance and failure mode of fiber, ceramic, and conventional post systems at various stages of restoration (2001) J. Prosthodontics, 10, pp. 26-36; Dietschi, D., Romelli, M., Goretti, A., Adaptation of adhesive posts and cores to dentin after fatigue testing (1997) Int. J. Prosthodontics, 10, pp. 498-507; Quintas, A.F., Dinato, J.C., Bottino, M.A., Aesthetic posts and cores for metalfree restoration of endodontically treated teeth (2000) Practical Periodontics Aesthetic Dentistry, 12, pp. 875-884; Huang, H.M., Tsai, C.Y., Lee, H.F., Lin, C.T., Yao, W.T., Chiu, W.T., Lee, S.Y., Damping effects on the response of maxillary incisor subjected to a traumatic impact force: A nonlinear finite element analysis (2006) J. Dentistry, 34, pp. 261-268; Helfer, A.R., Melnick, S., Schilder, H., Determination of the moisture content of vital and pulpless teeth. Oral Surg., Oral Med., Oral Pathol., Oral Radiol (1972) Endodontics, 34, pp. 661-670; Kampoosiora, P., Papavasilious, G., Bayne, S.C., Feltton, D.A., Finite element analysis estimates of cement microfracture under complete veneer crown (1994) J. Prosthetic Dentistry, 71, pp. 435-441; Soares, P.V., Santos-Filho, P.C.F., Queiroz, E.C., Araújo, T.C., Campos, R.E., Araújo, C.A., Soares, C.J., Fracture resistance and stress distribution in endodontically treated maxillary premolars restored with composite resin (2008) J. Prosthodontics, 17, pp. 114-119; (2002) Biomaterials; principles and applications, pp. 79-93. , Park, J. B. and Bronzino, J. D, Eds, CRC Press, Boca Raton, Florida; Sun, Q., Gan, R.Z., Chang, K.H., Dormer, K.J., Computer-integrated finite element modeling of human middle ear (2002) Biomech. Modeling Mechanobiol, 1, pp. 109-122; Dawson, P.E., (2007) Functional occlusion: From TMJ to smile design, pp. 27-33. , Mosby, St Louis, Missouri; Craig, R.G., Powers, J.M., (2002) Craig's restorative dental materials, pp. 51-96. , Mosby, St Louis, Missouri; Huang, H.M., Ou, K.L., Wang, W.N., Chiu, W.T., Lin, C.T., Lee, S.Y., Dynamic finite element analysis of the human maxillary incisor under impact loading in various directions (2005) J. Endodontics, 31, pp. 723-727; Lee, S.Y., Huang, H.M., Lin, C.Y., Shih, Y.H., In vivo and In vitro natural frequency analysis of periodontal conditions: An innovative method (2000) J. Periodontol, 71, pp. 632-640; Huang, H.M., Yeh, C.Y., Pan, L.C., Lee, S.Y., Wang, M.S., Chen, C.C., Factors influencing the dynamic behavior of human teeth (2001) Med. Biol. Engng Comput, 39, pp. 176-181; Wiak, S., Smólka, K., Dems, M., Komeza, K., Numerical modeling of 3D intelligent comb drive accelerometer structure: Mechanical models (2006) Int. J. Comput. Math, 25, pp. 697-704; Boschian Pest, L., Guidotti, S., Pietrabissa, R., Gagliani, M., Stress distribution in a post-restored tooth using the three dimensional finite element method (2006) J. Oral Rehabil, 33, pp. 690-697

PY - 2009

Y1 - 2009

N2 - The aim of this study was to measure the structural damping constants of premolars after treatment with a cast Co-Cr post-core system or permanent root filling, and to evaluate the stress damping effects of these restored premolars. Both the damping ratio and the natural frequency (NF) of the cast Co-Cr post-core restored premolars and the permanent root-filled premolars were detected by in-vitro NF testing experiments. Unprepared premolars served as the control. The damping constants β of the samples were calculated from the measured damping ratios and natural frequencies. The measured damping constants β of the test premolars were then used for dynamic finite element (FE) analyses. Stress contours and damping effects of stresses in each treated type of premolar were computed and compared using ANSYS. The measured damping constants β were 0.75×10-5 for the unprepared premolars, 0.69×10-5 for the root-filled premolars with coronal restoration, and 0.72×10-5 for the cast Co-Cr post-core restored premolars. The unprepared intact premolars demonstrated the highest stress dissipation effects with a ratio of 29.3 per cent at the middle root opposite to the loading side. However, no stress dissipation effects were found in the premolars that had been restored with the cast Co-Cr post-core system. The FE analysis showed that metallic post treatment attenuated the damping properties of the premolar. The effects of damping on stress concentration were significantly lower in restored premolars than in untreated vital premolars. These findings suggest that future research on post material should take the damping property into consideration. © IMechE 2009.

AB - The aim of this study was to measure the structural damping constants of premolars after treatment with a cast Co-Cr post-core system or permanent root filling, and to evaluate the stress damping effects of these restored premolars. Both the damping ratio and the natural frequency (NF) of the cast Co-Cr post-core restored premolars and the permanent root-filled premolars were detected by in-vitro NF testing experiments. Unprepared premolars served as the control. The damping constants β of the samples were calculated from the measured damping ratios and natural frequencies. The measured damping constants β of the test premolars were then used for dynamic finite element (FE) analyses. Stress contours and damping effects of stresses in each treated type of premolar were computed and compared using ANSYS. The measured damping constants β were 0.75×10-5 for the unprepared premolars, 0.69×10-5 for the root-filled premolars with coronal restoration, and 0.72×10-5 for the cast Co-Cr post-core restored premolars. The unprepared intact premolars demonstrated the highest stress dissipation effects with a ratio of 29.3 per cent at the middle root opposite to the loading side. However, no stress dissipation effects were found in the premolars that had been restored with the cast Co-Cr post-core system. The FE analysis showed that metallic post treatment attenuated the damping properties of the premolar. The effects of damping on stress concentration were significantly lower in restored premolars than in untreated vital premolars. These findings suggest that future research on post material should take the damping property into consideration. © IMechE 2009.

KW - Damping ratio

KW - Finite element

KW - Premolar

KW - Stress

KW - After-treatment

KW - Damping constants

KW - Damping effect

KW - Damping property

KW - Dissipation effects

KW - Dynamic finite element

KW - FE analysis

KW - In-vitro

KW - Non-linear finite elements

KW - Post treatment

KW - Post-core system

KW - Post-endodontic restorations

KW - Stress contours

KW - Stress damping

KW - Structural damping

KW - premolar

KW - Chromium

KW - Finite element method

KW - Natural frequencies

KW - Restoration

KW - Stress analysis

KW - Stress concentration

KW - Thermoelectricity

KW - Stresses

KW - Damping

KW - article

KW - biological model

KW - computer simulation

KW - dental care

KW - dental surgery

KW - finite element analysis

KW - human

KW - in vitro study

KW - instrumentation

KW - mechanical stress

KW - methodology

KW - nonlinear system

KW - pathophysiology

KW - premolar tooth

KW - tooth crown

KW - vibration

KW - viscosity

KW - young modulus

KW - Bicuspid

KW - Computer Simulation

KW - Dental Restoration, Permanent

KW - Dental Stress Analysis

KW - Elastic Modulus

KW - Finite Element Analysis

KW - Humans

KW - Models, Biological

KW - Nonlinear Dynamics

KW - Post and Core Technique

KW - Stress, Mechanical

KW - Vibration

KW - Viscosity

U2 - 10.1243/09544119JEIM538

DO - 10.1243/09544119JEIM538

M3 - Article

VL - 223

SP - 555

EP - 565

JO - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

JF - Proceedings of the Institution of Mechanical Engineers, Part H: Journal of Engineering in Medicine

SN - 0954-4119

IS - 5

ER -