Microstructural and Micromechanical Tests of Titanium Crowns

• Autorzy: Ryniewicz Wojciech , Bojko Łukasz , Pałka Paweł , Osada Piotr , Ryniewicz Andrzej

Identyfikatory

DOI

10.5604/01.3001.0016.1610

Warianty tytułu

PL

Badania mikrostrukturalne i mikromechaniczne koron tytanowych

• Języki publikacji: EN

Abstrakty

EN

Fixed prosthetic restorations must meet the health requirements in terms of the protection of the tissues of the oral cavity, biomechanical requirements for optimal tissue stress and the strength and wear resistance of the structure, aesthetic requirements related to the location of the gingival margin, as well as the shape, thickness, and colour of the veneers. The aim is to evaluate the impact of manufacturing technology on the microstructure and micromechanical parameters of titanium crowns. The material of the analysis are prosthetic crowns made of Ti6Al4V alloy for the maxilla premolars and the mandible molars, produced using two technologies: Selective Laser Melting (SLM) and CAD/CAM milling. Crown structures were evaluated on the basis of examinations of the microstructure and surface layer of the chamfers, micromechanical parameters in axial sections perpendicular to the dental arches, and the accuracy of mapping the internal shape in sections with horizontal planes perpendicular to the axis of the abutment tooth. The results of this work can be used in a clinical setting. They allow the evaluation of what is the impact of the technology of producing the supporting substructure on the structure of the prosthetic crown. The strength requirements in both technologies are met, while the higher value of the microhardness of the titanium SLM substructure, compared to the milled one, increases the stiffness of the structure under conditions of biomechanical excitation. The errors in mapping the internal shape of the crowns are comparable and slightly higher during sintering.

PL

Stałe uzupełnienia protetyczne powinny spełniać wymagania zdrowotne w aspekcie zabezpieczenia tkanek jamy ustnej, wymagania biomechaniczne dotyczące optymalnego wytężenia tkanek oraz wytrzymałości i odporności na zużycie konstrukcji, wymagania estetyczne związane z usytuowaniem obrzeża dodziąsłowego, a także kształtem, grubością i kolorem licowania. Celem jest ocena wpływu technologii wytwarzania na mikrostrukturę i parametry mikromechaniczne koron tytanowych. Materiałem analizy są korony protetyczne ze stopu Ti6Al4V na zęby przedtrzonowe szczęki i trzonowe żuchwy wytwarzane dwoma technologiami: Selective Laser Melting (SLM) i frezowania CAD/CAM. Konstrukcje koron oceniano na podstawie badań mikrostruktury i warstwy wierzchniej stopni, parametrów mikromechanicznych w osiowych przekrojach prostopadłych do łuków zębowych oraz dokładności odwzorowania kształtu wewnętrznego w przekrojach płaszczyznami horyzontalnymi, prostopadłymi do osi zęba filarowego. Wyniki tej pracy mogą być wykorzystane w warunkach klinicznych. Pozwalają ocenić, jaki jest wpływ technologii wytworzenia podbudowy nośnej, na konstrukcję korony protetycznej. Wymagania wytrzymałościowe w obu technologiach są spełnione, przy czym wyższa wartość mikrotwardości podbudowy tytanowej z SLM, w porównaniu do frezowanej, wpływa na zwiększenie sztywności konstrukcji w warunkach wymuszeń biomechanicznych. Błędy odwzorowania kształtu wewnętrznego koron są porównywalne i nieco wyższe przy spiekaniu.

Słowa kluczowe

EN

prosthetics; titanium alloy; fixed structure; digital technology; biomechanics

PL

protetyka; stop tytanu; konstrukcja stała; technologia cyfrowa; biomechanika

• Wydawca: Stowarzyszenie Inżynierów i Techników Mechaników Polskich
• Czasopismo: Tribologia
• Rocznik: 2022
• Tom: nr 4
• Strony: 61--72
• Opis fizyczny: Bibliogr. 39 poz., rys., tab., wykr.

Twórcy

autor

Ryniewicz Wojciech

• Jagiellonian University Medical College, Faculty of Medicine, Dental Institute, Department of Dental Prosthodontics and Orthodontics, 4 Montelupich Street, 31-155 Krakow, Poland

• https://orcid.org/0000-0002-9140-198X

autor

Bojko Łukasz

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, 30 Mickiewicza Ave., 30-059 Krakow, Poland

• https://orcid.org/0000-0002-6024-458X

autor

Pałka Paweł

• AGH University of Science and Technology, Faculty of Non-Ferrous Metals, 30 Mickiewicza Ave., 30-059 Krakow, Poland

• https://orcid.org/0000-0003-0640-7939

autor

Osada Piotr

• AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, 30 Mickiewicza Ave., 30-059 Krakow, Poland

• https://orcid.org/0000-0002-9176-983X

autor

Ryniewicz Andrzej

• State University of Applied Science, Institute of Technology, 1a Zamenhofa Street, 33-300 Nowy Sacz, Poland

• https://orcid.org/0000-0003-3437-7650

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MEiN, umowa nr SONP/SP/546092/2022 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2022-2023).