Compatibility of the digital design of prosthetic crowns with restorations made in the technology of selective laser sintering of metal powders

Surowiecki, Daniel; Szerszeń, Marcin; Wróbel-Bednarz, Kamila; Walczyk, Agata

doi:10.5114/ps/122309

Cited by 5 publications

(4 citation statements)

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“…15,19 Zarówno uzupełnienia protetyczne, wytwarzane metodą spieku laserowego (DMLS), jak i przy użyciu techniki frezowania (CNCM), aby zapewnić kliniczną akceptowalność muszą spełnić określone wymagania. 20 Jednym z najważniejszych kryteriów oceny dokładności wykonania stałego uzupełnienia protetycznego jest szczelność brzeżna odbudowy, przez co aspekt ten stał się tematem wielu badań.…”

Section: Nowe Techniki Wytwarzania W Oparciu O Oprogramowanie Cad/camunclassified

Marginal adaptation of Cr-Co alloy crown framework made with the use of various CAD-CAM manufacturing techniques – review of the literature

Wróbel-Bednarz¹,

Ochał²,

Sochańska³

2021

Prosthodontics

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Trwałość leczenia protetycznego z wykorzystaniem stałych uzupełnień protetycznych zależy między innymi od dwóch ważnych zmiennych: stopnia dokładności wykonania podbudowy protetycznej oraz szczelności brzeżnej uzupełnienia. Stopy Co-Cr stanowią podstawowy materiał służący do wykonywania stałych uzupełnień protetycznych złożonych. Nowoczesne laboratoria techniczne pracując w oparciu o system CAD/ CAM oferują wykonanie podbudowy do koron protetycznych między innymi w technologii Direct Metal Laser Sintering (DMLS). Inną możliwością wytwarzania uzupełnień stałych jest obróbka subtraktywna, a więc frezowanie metalu. Niezależnie od wybranej metody wytwarzania pracy protetycznej, czynnikiem determinującym długoterminowy sukces kliniczny jest precyzja wykonania. Wraz z rozwojem nowych technik oraz stosowanego oprogramowania CAD/CAM, występuje możliwość zautomatyzowania poszczególnych etapów, a przez to wyeliminowania niektórych błędów natury ludzkiej.

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Section: Nowe Techniki Wytwarzania W Oparciu O Oprogramowanie Cad/camunclassified

Marginal adaptation of Cr-Co alloy crown framework made with the use of various CAD-CAM manufacturing techniques – review of the literature

Wróbel-Bednarz¹,

Ochał²,

Sochańska³

2021

Prosthodontics

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“…Digital techniques change the possibilities of the stomatognatic system rehabilitation [ 20 , 21 ]. The use of 3D-printing in mouthguard manufacturing could make it possible to design a single protective splint, which can be printed and duplicated while maintaining its dimensions [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Mechanical Properties of 3D-Printed Polymeric Materials for Possible Application in Mouthguards

et al. 2023

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Custom mouthguards are used in various sports disciplines as a protection for teeth, temporomandibular joints, and soft tissues of the oral cavity from impact forces. The purpose of this research was to evaluate the mechanical properties of flexible polymeric 3D-printable materials and to select a material with the most favourable physical properties for making intraoral protectors. Four 3D-printable polymeric materials were selected for the evaluation: IMPRIMO LC IBT (Scheu-Dental, Iserlohn, Germany), Keyortho IBT (EnvisionTEC, Gladbeck, Germany), IBT (Formlabs, Somerville, MA, USA), and Ortho IBT (NextDent, Utrecht, Netherlands). A total of 176 samples (44 from each material) was 3D-printed using the stereolitography (SLA) technique. Tensile strength, flexural strength, notch-toughness, Shore hardness, sorption, and solubility tests were conducted. The materials were compared using a series of analyses of variance (one-way ANOVA) with Bonferroni post hoc tests. Statistical analyses were performed with the use of IBM SPSS Statistics 28.0.0 software (IBM, New York, NY, USA). Each material was assigned a score from 1 to 4 depending on the individual test results, and tests were given indexes according to the significance of the parameter in the mouthguard protective function. The number of points obtained by each material in each test was then multiplied by the test index, and the results were tabulated. The material with the highest result among the ones studied—most suitable for the application in mouthguard fabrication—was Keyortho IBT from EnvisionTEC.

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“…The development of adhesive methods of cementing prosthetic restorations made it possible to limit the range of preparation, reducing the loss of tooth tissues [9,10]. The possibility of intraoral scanning; implementation of restorations such as veneers, prosthetic onlays, or tabletops; and the use of dental CAD/CAM systems have made it possible to reduce tooth preparation to a necessary minimum and, in some clinical cases, eliminating the need for preparation altogether [11][12][13][14]. Several factors may determine the quality of adhesive processes and thus the long-term clinical success, including the selection of appropriate restorative materials, conditioning the surface of the restoration, pretreatment of the surface of mineralized tooth tissues for adhesive bonding, selection of appropriate cementing materials, and, lastly, a properly performed adhesive cementation protocol [15].…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Properties of Dentine Subjected to Microabrasive Blasting and Its Influence on Bonding to Self-Adhesive Prosthetic Cement in Shear Bond Strength Test: An In Vitro Study

et al. 2022

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The aim of this in vitro study was to assess the influence of microabrasive blasting on the physicochemical properties of dentine and shear bond strength (SBS) of self-adhesive resin cement (Maxcem Elite, Kerr, Orange, CA, USA) bonded to the dentine surface. Ninety cylindrical specimens with exposed dentine of human teeth were prepared and divided into three randomized, parallel sample sets A, B, and C. Groups B and C were subjected to abrasive blasting using a micro-sandblasting device (Microetcher IIa, Danville Materials, Carlsbad, CA, USA) with two gradations of Al2O3 abrasives (Group B, abrasion with a gradation of 50 mm; group C, abrasion with a gradation of 27 mm). SEM imaging, profilometry, chemical composition analysis, contact angle measurements, surface free energy, and SBS tests were performed. The resulting data were statistically analyzed using the Statistica software (ver. 13.3, Tibco Software Inc., Palo Alto, CA, USA). Microabrasive blasting caused changes in surface topography, structural features, and the connection strength between the dentin surface and self-adhesive prosthetic cement. Air microabrasion through the multifactorial positive reorganization of the treated surface of dentine is recommended as a pretreatment method in fixed prosthodontics adhesive cementation protocols.

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Compatibility of the digital design of prosthetic crowns with restorations made in the technology of selective laser sintering of metal powders

Cited by 5 publications

References 0 publications

Marginal adaptation of Cr-Co alloy crown framework made with the use of various CAD-CAM manufacturing techniques – review of the literature

Marginal adaptation of Cr-Co alloy crown framework made with the use of various CAD-CAM manufacturing techniques – review of the literature

Evaluation of Mechanical Properties of 3D-Printed Polymeric Materials for Possible Application in Mouthguards

Physicochemical Properties of Dentine Subjected to Microabrasive Blasting and Its Influence on Bonding to Self-Adhesive Prosthetic Cement in Shear Bond Strength Test: An In Vitro Study

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