Dentistry 4.0 concept in designing and manufacturing removable partial denture frameworks

Obradović-Djuričić, Kosovka; Stamenković, Dragoslav

doi:10.2298/vsp220526088s

Cited by 1 publication

(2 citation statements)

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“…Clasp arms are always elastic; therefore, the application of SLM/DMLS technology in the production of metal RPD frameworks is significantly limited [6,11]. The therapy success of partially edentulous patients with RPD depends on the mechanical properties of the alloy defined by its microstructure [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Comparative Study of the Microstructure and Properties of Cast-Fabricated and 3D-Printed Laser-Sintered Co–Cr Alloys for Removable Partial Denture Frameworks

et al. 2023

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Since additive technologies in dentistry are gradually replacing metal casting technology, it is necessary to evaluate new dental constructions intended for the development of removable partial denture frameworks. The aim of this research was to evaluate the microstructure and mechanical properties of 3D-printed, laser-melted and -sintered Co–Cr alloys, and perform a comparative study with Co–Cr castings for the same dental purposes. The experiments were divided into two groups. The first group consisted of samples produced by conventional casting of the Co–Cr alloy. The second group consisted of 3D-printed, laser-melted and -sintered specimens produced from a Co–Cr alloy powder divided into three subgroups, depending on the technological parameters chosen for manufacturing (angle, location and heat treatment). Examination of the microstructure was carried out by classical metallographic sample preparation, using optical microscopy and scanning electron microscopy with energy dispersive X-ray spectroscopy (EDX) analysis. A structural phase analysis was also performed by XRD. The mechanical properties were determined using a standard tensile test. The microstructure observation showed a dendritic character in the case of castings, while in the case of 3D-printed, laser-melted and -sintered Co–Cr alloys, the microstructure was typical for additive technologies. The XRD phase analysis confirmed the presence of Co–Cr phases (ε and γ). The results of the tensile test showed remarkably higher yield and tensile strength values and slightly lower elongation of the 3D-printed, laser-melted and -sintered samples than those produced by conventional casting.

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Section: Introductionmentioning

confidence: 99%

“…XRD analysis revealed the presence of a cubic phase (γ) of Co-Cr [14] and a hexagonal phase (ε) of Co-Cr [15] in all investigated samples.…”

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confidence: 99%

Comparative Study of the Microstructure and Properties of Cast-Fabricated and 3D-Printed Laser-Sintered Co–Cr Alloys for Removable Partial Denture Frameworks

et al. 2023

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Dentistry 4.0 concept in designing and manufacturing removable partial denture frameworks

Abstract: nema

Cited by 1 publication

References 26 publications

Comparative Study of the Microstructure and Properties of Cast-Fabricated and 3D-Printed Laser-Sintered Co–Cr Alloys for Removable Partial Denture Frameworks

Comparative Study of the Microstructure and Properties of Cast-Fabricated and 3D-Printed Laser-Sintered Co–Cr Alloys for Removable Partial Denture Frameworks

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