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Title:Vpliv tehnologij površinske obdelave kovinskega ogrodja na pojav napak v mikrostrukturi porcelanskega plašča pri kovinsko/porcelanskih zobnih restavracijah
Authors:ID Župec, Lara (Author)
ID Župec, Lara (Corresponding author)
ID Bohinc, Peter (Author)
ID Brunčko, Mihael (Author)
Files:.pdf Influence_of_Metal_Surface_Finishin-Zupec-2023.pdf (5,08 MB)
MD5: 8C2C67967B1CE5835041A216D93CB624
 
URL https://journals.um.si/index.php/anali-pazu/article/view/3290
 
Language:Slovenian
Work type:Scientific work
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
UZUM - University of Maribor Press
Abstract:Čeprav je sodobni trend v fiksni protetiki v uporabi polnokeramičnih zobnih nadomestkov, so raziskave pokazale, da se še vedno najpogosteje uporabljajo kovinsko-porcelanski zobni nadomestki. Namen v tem prispevku predstavljene raziskave je ugotoviti, kako različne tehnike mehanske obdelave površine kovinskega ogrodja vplivajo na pojav napak v porcelanskem sloju ter mejni površini kovina-porcelan. V okviru izvedenih raziskav smo izdelali vzorce iz Co-Cr zlitine z različnimi metodami in tehnikami površinske obdelave. Sledila je priprava metalografskih obrusov s pomočjo katerih smo analizirali vpliv površinskih obdelav na spremembo makro- in mikrostrukture kovinskega ogrodja, porcelanskega plašča in mejne površine med njima. Rezultati opravljenih raziskav so pokazali, da je pojav napak pri vzorcih katerih kovinsko ogrodje je bilo obdelano z brusnim sredstvom v eni smeri minimalen, površina kovinskega ogrodja enakomerno hrapava z enakomerno povprečno debelino oksidne plasti 3,5µm. Pri vzorcih s kovinskim ogrodjem obdelanim z brusnim sredstvom v več smereh, smo opazili bolj hrapavo površino kovinskega ogrodja s prisotnostjo plastične deformacije površine kovinskega ogrodja, ki tvori tanjšo oksidno plast.
Keywords:kovinsko-porcelanska prevleka, mehanska obdelava kovinskega ogrodja, brusna sredstva, peskanje, mikrostruktira
Publication status:Published
Publication version:Version of Record
Submitted for review:21.03.2023
Article acceptance date:27.06.2023
Publication date:07.11.2023
Place of publishing:Maribor
Publisher:Univerza v Mariboru, Univerzitetna založba
Year of publishing:2023
Number of pages:23
Numbering:Letn.13, št.2
PID:20.500.12556/DKUM-86393 New window
UDC:616.31
ISSN on article:2820-364X
COBISS.SI-ID:173363715 New window
DOI:10.18690/analipazu.13.2.35-58.2023 New window
Publication date in DKUM:25.02.2026
Views:140
Downloads:3
Metadata:XML DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Anali PAZU
Publisher:Združenje Pomurska akademsko znanstvena unija, Združenje Pomurska akademsko znanstvena unija, Univerzitetna založba Univerze v Mariboru
ISSN:2232-416X
COBISS.SI-ID:257553152 New window

Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

Secondary language

Language:English
Title:Influence of Metal Surface Finishing on Porcelain Microstructure Failures in Porcelain-Fused-to-Metal Dental Restoration
Abstract:Although the current trend in fixed prosthetics is the use of full-ceramic dental restorations, research has shown that most commonly used are still metal-ceramic dental restorations. The purpose of the research presented in this paper is to find out how different techniques of mechanical treatment of the surface of the metal frame affect the occurrence of defects in the porcelain layer and the metal-porcelain interface. As part of the research, we produced samples from Co-Cr alloy using various surface treatment methods and techniques, followed by the preparation of metallographic tablecloths, with the help of which we analyzed the influence of surface treatments on the change in the macro- and microstructure of the metal framework, the porcelain veneer and the interface between them. The results of the conducted research showed that the occurence of defects in samples whose metal surface was treated with an abrasive in one direction is minimal, the surface of the metal framework is uniformly rough with an average thickness of the oxide layer of 3,5µm. In samples with a metal framework treated with an abrasive in several directions, we observed a rougher surface of the metal framework with the presence of plastic deformation of the surface of the metal framework, which forms a thinner oxide layer.
Keywords:metal-ceramic crown, metal framework processing, abrasive stones, sandblasting, microstructure


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  1. Anali PAZU

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