- 期刊
The Effects of Designs and Materials of the Posts on Endodontically Treated Premolar Using Finite Element Analysis
並列摘要
Tooth loss due to severe caries or trauma is often observed in clinical dentistry. After endodontic treatment, dentists can adopt a post/core system to recover the root canal and provide retention for crowns. The designs of the post were one of the major biomechanical concerns in clinical application. The objective of this study was to investigate the effects of various designs (including lengths, diameters, and materials) of posts used in endodontically treated premolar on endodontically treated premolar using finite element (FE) analysis. A healthy premolar with no caries or other complications was selected for the construction of the FE models. All exterior nodes at the mesial and distal alveolar bone surfaces were fixed in all directions as the boundary condition. An oblique force of 100N was applied (45 degrees with buccal inclination) on the buccal occlusal surface. Three diameters (1.8, 1.5, and 1.2mm), 3 lengths (2, 8, and 6 mm), and 3 materials (zirconium, titanium and gold alloy) were investigated as design parameters of posts. The results of this study showed that the stress on the remaining dentine only decreased slightly when the post diameter increased. Excessive post length might be harmful to the entire structure.
延伸閱讀
- 曾春祺（1997）。A New Approach to Treatment of True-combined Endodontic Periodontic Lesions by the Guided Tissue Regeneration。中華民國牙周病醫學會雜誌，2(1)，55-55。https://www.airitilibrary.com/Article/Detail?DocID=a0000071-199703-201301020006-201301020006-55
- 傅琬茹（2020）。Investigating the prognosis factors of endodontic treatment for primary teeth〔碩士論文，高雄醫學大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0011-2306202019434200
- 龔郁穎、盧俊泰（2007）。Endodontic Treatment of an Upper First Premolar with Three Canals-Cases Report。中華牙醫學雜誌（中文版），26(1)，78-86。https://doi.org/10.7106/CJD.200703.0078
- Yousuf, W., Khan, M., & Mehdi, H. (2015). Endodontic Procedural Errors: Frequency, Type of Error, and the Most Frequently Treated Tooth. International Journal of Dentistry, 2015(), 346-352. https://doi.org/10.1155/2015/673914
- 楊佳達（2006）。Biomechanical Analysis of Mandibular First Molar after Mesial Root Resection – Finite Element Method〔碩士論文，高雄醫學大學〕。華藝線上圖書館。https://doi.org/10.6832/KMU.2006.00111