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Item Metadata only The potential of high copper alloys as alternative materials for post-and-core application(Mahidol University. Mahidol University Library and Knowledge Center, 2004) Usanee Peungpaiboon; Somchai UrapeponPublication Metadata only Photoelastic stress analysis of different prefabricated post-and-core materials(2011-10-12) Pattapon Asvanund; Steven M. Morgano; Mahidol University; The Boston University Institute for Dental Research and EducationThe purpose of this study was to investigate stress developed by a combination of a stainless steel post or a fiber-reinforced resin post with a silver amalgam core or a composite resin core. Two-dimensional photoelastic models were used to simulate... root dentin. Posts (ParaPost XT and ParaPost-FiberWhite) were cemented with a luting agent (RelyX Unicem). Silver amalgam cores and composite resin cores were fabricated on the posts. Complete crowns were fabricated and cemented on the cores. Each modelPublication Open Access Effect of 4% HF etching intervals on microtensile bond strength of fiber posts to resin composite cores(2010-09) Widcha Asawaworarit; วิชชา อัศววรฤทธิ์; Wisit Piyawattanatawon; วิศิษฎ์ ปิยะวัฒนาถาวร; Pisol Senawongse; พิศลย์ เสนาวงษ์; Widcha Asawaworarit; วิชชา อัศววรฤทธิ์; Mahidol University. Faculty of Dentistry. Department of Operative DentistryObjective: This study investigated the effect of different etching intervals of 4% HF on the microtensile bond strength of fiber posts to the resin composite cores. Materials and methods: Forty fiber posts were randomly divided into 5 groups... each group were randomly selected to examine the post surface using a SEM. The remaining posts were core built up with Multicore flow using a cylindrical plastic matrix as a mold. The posts and resin composite cores were sectioned into stickItem Metadata only Development of Cu-Al-Ni alloy for dental post and core application(Mahidol University. Mahidol University Library and Knowledge Center, 2023) Apiwat Rittapai; Somchai Urapepol; Widchaya Kanchanavasita; Kallaya SuputtamongkolGenerally, the technique used for replacement of the tooth is "posts and cores". Noble and semi-precious dental alloys have numerous excellent properties, but they are expensive and unaffordable for lots of patients. The copper-aluminum-nickel alloy... is a reasonably priced alternative, and theoretically is perceived as corrosion resistant. Therefore, this situation could potentially be a prototype to develop a base-metal alloy for dental post and core application, and generate dentistry that is morePublication Open Access The potential of copper alloy as alternative material for post and core applications.(2014-09) Somchai Urapepon; สมชาย อุรพีพล; Usanee Peungpaiboon; อุษณีย์ ปึงไพบูลย์; Somchai Urapepon; สมชาย อุรพีพล; Mahidol University. Faculty of Dentistry. Department of Prosthodonticsthan that of the Cu-Al-Ni alloy. Conclusion: Regarding mechanical properties, Cu-Al alloy seemed the most suitable for post and core materials while Cu-Al-Ni alloy had the highest corrosion resistance. Thus, both Cu-Al and Cu-Al-Ni alloys showed... promising properties for further development as appropriate post-and-core materials.Publication Metadata only Effect of the shades of background substructures on the overall color of zirconia-based all-ceramic crowns(2013-10-22) Kallaya Suputtamongkol; Chantana Tulapornchai; Jatuphol Mamani; Wannaporn Kamchatphai; Noparat Thongpun; Mahidol Universitysubjects. Seven premolar crowns and six molar crowns were cemented onto abutments with metal post and core in the first and second group. In the third group, eight molar crowns were cemented onto abutments with a prefabricated post and composite core build...,with different core thicknesses (0.4-1 mm) were also prepared to obtain the contrast ratio of zirconia materials after veneering. RESULTS. L*, a*, and b*values of all-ceramic crowns cemented either on a metal cast post and core or on a prefabricated post didPublication Open Access Effect of the shades of background substructures on the overall color of zirconia-based all-ceramic crowns.(2013-08) Kallaya Suputtamongkol; กัลยา ศุพุทธมงคล; Chantana Tulapornchai; ฉันทนา ตุลาพรชัย; Jatuphol Mamani; Wannaporn Kamchatphai; วรรณพร กำจัดภัย; Noparat Thongpun; นพรัตน์ ทองพันธ์; Kallaya Suputtamongkol; กัลยา ศุพุทธมงคล; Mahidol University. Faculty of Dentistry. Prosthodontics Departmentsubjects. Seven premolar crowns and six molar crowns were cemented onto abutments with metal post and core in the first and second group. In the third group, eight molar crowns were cemented onto abutments with a prefabricated post and composite core build..., with different core thicknesses (0.4-1 mm) were also prepared to obtain the contrast ratio of zirconia materials after veneering. RESULTS: L(*) , a(*) , and b(*) values of all-ceramic crowns cemented either on a metal cast post and core or on a prefabricated postPublication Metadata only Properties of experimental copper-aluminiumnickel alloys for dental post-and-core applications(2014-01-01) Apiwat Rittapai; Somchai Urapepon; Julathep Kajornchaiyakul; Choltacha Harniratisai; Mahidol University; National Metal and Materials Technology Center (MTEC)PURPOSE: This study aimed to develop a copper-aluminium-nickel alloy which has properties comparable to that of dental alloys used for dental post and core applications with the reasonable cost. MATERIALS AND METHODS: Sixteen groups of experimental... be considered for a potential use as dental post and core applications. © 2014 The Korean Academy of Prosthodontics.Item Metadata only Comparison of Uniform Hazard Spectrum and Conditional Mean Spectrum in Nonlinear Response History Analysis of Tall Buildings with Post Tension Slab and Hollow Core Slab(2026-01-01) Pradittan P.; Ornthammarath T.; Pradittan P.; Mahidol Universityto show the response of the building under 10 ground motions using these methods in nonlinear response history analysis (NLRHA) in FEM software. Furthermore, this study is trying to compare the results of using the post-tension slab and hollow core slabItem Metadata only Fracture Resistance of the Crown Retained By Milled Computer-Aided Design-Computer-Aided Manufacturing Unidirectional Fiber-Reinforced Composite Post(2024-01-01) Boriboon N.; Urapepon S.; Boriboon N.; Mahidol Universitypost. Twenty-one extracted permanent mandibular premolars were endodontically treated and randomly divided into three groups of seven specimens. The first group received one-piece CAD-CAM unidirectional fiber-reinforced composite posts and cores (MPC...). The second group received CAD-CAM milled posts in combination with composite cores (MP). The control group used commercial fiber posts (RelyXTM fiber post). After cementing the post, core, and crown, each specimen was subjected to a compressive load