Biomechanical Evaluation of an Anatomically Correct All-Ceramic Tooth-Crown System Configuration: Core Layer Multivariate Analysis Incorporating Clinically Relevant Variables
| العنوان: | Biomechanical Evaluation of an Anatomically Correct All-Ceramic Tooth-Crown System Configuration: Core Layer Multivariate Analysis Incorporating Clinically Relevant Variables |
|---|---|
| المؤلفون: | Van P. Thompson, E.D. Rekow, Malvin N. Janal, Estevam A. Bonfante, Nelson R.F.A. Silva, Brian T. Rafferty, Paulo G. Coelho |
| المصدر: | Journal of Biomechanical Engineering. 132 |
| بيانات النشر: | ASME International, 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Molar, Ceramics, Materials science, medicine.medical_treatment, Biomedical Engineering, Dental Cements, Modulus, Crown (dentistry), Stress (mechanics), Dental Prosthesis, stomatognathic system, Physiology (medical), medicine, Forensic engineering, Humans, Composite material, Cementation, Cement, technology, industry, and agriculture, Core (optical fiber), stomatognathic diseases, Multivariate Analysis, Fracture (geology), Veneer, Tooth |
| الوصف: | In a crown system, core fracture requires replacement of the restoration. Understanding maximum principal stress concentration in the veneered core of a tooth-crown system as a function of variations in clinically relevant parameters is crucial in the rational design of crown systems. This study evaluated the main and interacting effects of a set of clinical variables on the maximum principal stress (MPS) in the core of an anatomically correct veneer-core-cement-tooth model. A 3D CAD model of a mandibular first molar crown was generated; tooth preparation was modeled by reducing the proximal walls by 1.5 mm and the occlusal surface by 2.0 mm. A cemented veneered core crown was modeled on the preparation. This “crown system” permitted finite element model investigation of the main and interacting effects of proximal wall height reduction, core material, core thickness, cement modulus, cement thickness, and load position on the maximum stress distribution in a factorial design. Analysis of variance was used to identify the main and interacting influences on the level of MPS in the crown core. Statistical significance was set at p |
| تدمد: | 1528-8951 0148-0731 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d519a4b7ba47c8e403711de1a73a17dTest https://doi.org/10.1115/1.4001046Test |
| رقم الانضمام: | edsair.doi.dedup.....9d519a4b7ba47c8e403711de1a73a17d |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 15288951 01480731 |
|---|