Qualitative Assessment of the Defects in Metal Casting Prosthetic Restorations

• Autorzy: Augustyn-Pieniążek J. , Wilkosz K.
• Języki publikacji: EN

Abstrakty

EN

Due to the frequent occurrence of casting defects in the casting process of metal prosthetic elements, studies aiming at identifying the defects and determining their probable causes were performed. The work presents the results of the examinations of the Co-Cr-Mo alloy, brand name Argeloy N.P. Special, used for prosthetic restorations. Macroscopic and microscopic observations were conducted with the use of light and scanning microscopy (SEM). Also, the results of the observations by means of a 3D scanner by GOM ATOS 3 were presented. The performed research made it possible to determine and classify casting defects such as blisters, misruns and interscrystalline cracks. It was stated that a stabilized technological process affects the elimination of the casting defect formation.

Słowa kluczowe

EN

cobalt based alloys; casting defects; dental prosthetics; 3D scanner

PL

kobalt; wady odlewnicze; protetyka stomatologiczna; skaner 3D

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2014
• Tom: Vol. 14, iss. 4 spec.
• Strony: 7--12
• Opis fizyczny: Bibliogr. 26 poz., il., tab.

Twórcy

autor

Augustyn-Pieniążek J.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Physical and Powder Metallurgy, Mickiewicza Av. 30, 30-059 Krakow, Poland

autor

Wilkosz K.

• AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Physical and Powder Metallurgy, Mickiewicza Av. 30, 30-059 Krakow, Poland

Bibliografia

• [1] Marciniak J., (2008), Biomaterials in dentistry. Technical University of Silesia, Gliwice (in Polish).
• [2] Augustyn-Pieniążek J., Łukaszczyk A. & Zapała R., (2013), Microstructure and corrosion resistance characteristics of Co-Cr-Mo alloys designed for prosthetic materials. Archives of Metallurgy and Materials 58, 1281-1285.
• [3] Łukaszczyk A. & Augustyn-Pieniążek J., (in press 2015), Corrosion resistance of Co-Cr-Mo alloy used in dentistry. Archives of Metallurgy and Materials.
• [4] Surowska B., (1997), Formation of chemical composition and structure of the alloy Co-Cr-Ni-Mo as biomaterials, Technical University of Lublin (in Polish).
• [5] Henriques B., Soares D. & Silva FS., (2012), Microstructure, hardness, corrosion resistance and porcelain shear bond strength comparison between cast and hot pressed CoCrMo alloy for metal-ceramic dental restorations. Journal of the Mechanical Behavior of Biomedical Materials 12, 83-92.
• [6] Giachci J.V., Morando C.N., Fornaro O. & Palacio H.A., (2011), Microstructural characterization of as - cast biocompatible Co – Cr – Mo alloys. Materials Characterization 62, 53–61.
• [7] Ciaputa T. & Ciaputa A., (2009), Basics of workmanship restorations. Publishers Elamed, Katowice (in Polish).
• [8] Bojar Z., (1992), Analysis of the impact of the structure on the corrosion resistance and fracture mechanism of cobalt alloys type Vitalium, WAT Warszawa (in Polish).
• [9] Beer K., Pałka K., Surowska B. & Walczak M., (2013), A Quality assessment of casting dental prosthesis elements. Maintenance and Reliability 15(3), 230-236.
• [10] Jepson N. J. A., (2006), Prosthesis denture. Publishers Kwintesencja, Warszawa (in Polish).
• [11] Kleinrok M., (1995), Rules for the implementation of fixed dentures - Cast and veneered crown porcelain. Department of Publishing-Polygraphic Lublin University of Technology, Lublin.
• [12] Craig R. G., (2008), Dental materials. Publishers Elsevier Urban&Partner, Wrocław (in Polish).
• [13] Karwński A., Wieliczko P. & Leśniewski W., (2006), Application of centrifugal casting in the manufacture of thin-walled investment castings. Archives of Foundry Archives of Foundry Engineering 6(18), 255-260.
• [14] Kozakowski S., (2001), Study casts. Publishers Biuro Gamma (in Polish).
• [15] Moldoveanu L. E., Mitrache A. C. & Matei A., (2014), Macroscopic demonstration and presentation of casting errors in fixed partial dentures. Ovidius Dentistry Journal 1(1), 51-56.
• [16] Tourah A., Moshaverinia A. & Chee WW., (2014). Effects of setting under air pressure on the number of surface pores and irregularities of dental investment materials. Journal of Prosthetic Dentistry 111(2), 150-153.
• [17] Viţalariu A. M. & Tatarciuc M.S., (2008), Study concerning the influence of the casting parameters of dental alloys on the cast prosthetic rehabilitation. Rev Med Chir Soc Med Nat Iasi. 112(1), 234-239.
• [18] Falęcki Z., (1997), Analysis of casting defects. Publishers AGH, Kraków (in Polish).
• [19] Hajduga M. & Kosiba A., (2005), Characteristics of macro- and microscopic defects in the casting of metal prostheses. Modern Dental Technician 2, 22-24 (in Polish).
• [20] www.protofan.pl
• [21] www.gom.com
• [22] www.pnt.pollub.pl
• [23] www.lenso.com.pl
• [24] PN-85/H-83105 Casting division and terminology defects.
• [25] Zych J., (2001), Analysis of casting defects. Scripts University AGH, Kraków (in Polish).
• [26] Hénon G., Mascré C., & Blanc B. (translation: Warmuzek M.), (2004), Atlas of Casting Defects. Publishers Foundry Research Institute, Kraków (in Polish).