Wyniki wyszukiwania - BazTech

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Overview of conventional technologies using the powders of metals, their alloys and ceramics in Industry 4.0 stage

Dobrzański L. A., Dobrzański L. B., Dobrzańska-Danikiewicz A. D.

Journal of Achievements in Materials and Manufacturing Engineering

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2020

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Vol. 98, nr 2

56--85

EN

Purpose: Among the technologies that play a crucial role in the current stage of development of Industry 4.0 conventional powder engineering technologies are of great importance. Based on a comprehensive literature review, conventional technologies using the powders of metals, their alloys and ceramics are described. Development perspectives of the most widespread among them were indicated. Design/methodology/approach: Extensive literature studies on conventional powder engineering technologies have been carried out. By using knowledge engineering methods, development perspectives of individual technologies were indicated. Findings: In addition to the presentation of conventional sintering technological methods, sintering mechanisms in solid-state and liquid phase sintering which accounts for 90% of the commercial value of sintered products are presented. Originality/value: According to augmented holistic Industry 4.0 model, many materials processing technologies and among them conventional powder engineering technologies play a key role in current industry development. For this reason, these technologies have been characterized in detail on the basis of available literature sources.

2

Manufacturing technologies thick-layer coatings on various substrates and manufacturing gradient materials using powders of metals, their alloys and ceramics

Dobrzański L. A., Dobrzański L. B., Dobrzańska-Danikiewicz A. D.

Journal of Achievements in Materials and Manufacturing Engineering

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2020

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Vol. 99, nr 1

14--41

EN

Purpose: The paper is a comprehensive review of the literature on manufacturing technologies thick-layer coatings on various substrates and manufacturing gradient materials using powders of metals, their alloys and ceramics. Design/methodology/approach: Extensive literature studies on manufacturing technologies thick-layer coatings on various substrates and manufacturing gradient materials using powders of metals, their alloys and ceramics have been carried out. The paper is illustrated with examples of various structure images obtained as part of research of engineering materials made by authors with powders. By using knowledge engineering methods, development perspectives of individual technologies were indicated. Findings: The manufacturing technologies thick-layer coatings on various substrates and manufacturing gradient materials using powders of metals, their alloys and ceramics as the advanced digital production (ADP) technologies are proves the highest possible potential and relatively good attractiveness, as well as their fully exploited attractiveness or substantial development opportunities in this respect. Originality/value: According to augmented holistic Industry 4.0 model, many materials processing technologies and among them manufacturing technologies thick-layer coatings on various substrates and manufacturing gradient materials using powders of metals, their alloys and ceramics are becoming very important among product manufacturing technologies. They are an essential part of powder engineering.

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Manufacturing powders of metals, their alloys and ceramics and the importance of conventional and additive technologies for products manufacturing in Industry 4.0 stage

Dobrzański L. A., Dobrzański L. B., Dobrzańska-Danikiewicz A. D., Kraszewska M.

Archives of Materials Science and Engineering

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2020

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Vol. 102, nr 1

13--41

EN

Purpose: The paper is a literature review indicating the importance of powder engineering in the modern stage of Industry 4.0 development. 47 technologies for the manufacturing and use the powders of metal and their alloys and ceramic in the manufacturing of products are indicated. All those technologies were compared in terms of their potential and attractiveness, pointing to their development trends. The focus was solely on powder production methods. Other technologies will be discussed in other papers in the powder engineering cycle. Design/methodology/approach: The authors' considerations are based on an extensive literature study and the results of the authors' previous studies and empirical work. In order to compare the analyzed technologies, the methodology of knowledge engineering are used, including the own method of contextual matrices for comparative analysis of a large set of technologies by presenting them on a dendrological matrix. Findings: The most interesting intellectual achievements contained in the paper include presentations of the authors' original concepts regarding the augmentation of the Industry 4.0 model. Material processing technologies occupy an important place in it, among them powder engineering technologies, both conventional and additive. The most attractive and promising development technologies in powder engineering are identified. Originality/value: The originality of the paper is associated with the novelty of the approach to analysing powder engineering, an indication of its importance for the development of the Industry 4.0 idea, where progress does not depend only on the development of IT technologies. It is also not true that from among technologies only additive technologies play a key role. Using avant-garde analyses in the field of knowledge engineering, the most avant-garde technologies of powder engineering are pointed out.

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Additive and hybrid technologies for products manufacturing using powders of metals, their alloys and ceramics

Dobrzański L. A., Dobrzański L. B., Dobrzańska-Danikiewicz A. D.

Archives of Materials Science and Engineering

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2020

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Vol. 102, nr 2

59--85

EN

Purpose: The paper is a comprehensive review of the literature on additive and hybrid technologies for products manufacturing using powders of metals, their alloys and ceramics. Design/methodology/approach: Extensive literature studies on conventional powder engineering technologies have been carried out. By using knowledge engineering methods, development perspectives of individual technologies were indicated. Findings: The additive and hybrid technologies for products manufacturing using powders of metals, their alloys and ceramics as the advanced digital production (ADP) technologies are located in the two-quarters of the dendrological matrix of technologies "wide-stretching oak" and "rooted dwarf mountain pine" respectively. It proves their highest possible potential and attractiveness, as well as their fully exploited attractiveness or substantial development opportunities in this respect. Originality/value: According to augmented holistic Industry 4.0 model, many materials processing technologies and among them additive and hybrid technologies for products manufacturing using powders of metals, their alloys and ceramics are becoming very important among product manufacturing technologies. They are an essential part not only of powder engineering but also of the manufacturing development according to the concept of Industry 4.0.

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The digitisation for the immediate dental implantation of incisors with immediate individual prosthetic restoration

Dobrzański L. B., Achtelik-Franczak A., Dobrzańska J., Dobrzański L. A.

Journal of Achievements in Materials and Manufacturing Engineering

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2019

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Vol. 97, nr 2

57--68

EN

Purpose: The purpose of this study is to present the author's method of planning the procedure of immediate implant-prosthetic restoration in place of a tooth qualified for removal by performing a surgical template and implant-prosthetic restoration based on data obtained in the CBCT test and intraoral scanning 3D model. Design/methodology/approach: The method of planning the implant surgery through the design and manufacture of surgical templates and implant prostheses performed before the start of medical procedures was described on the basis of actual clinical data from patients with anterior segment teeth qualified for extraction for reasons of complications after endodontic treatment. The placement of the implant was planned using virtual reality, where the bone model and the virtual soft tissue model were combined, which made it possible to perform a surgical template and prosthetic implant restoration. For the manufacturing, 3D printing as stereolithography SLA and selective laser sintering SLS for the surgical template manufacturing and CNC milling in the case of the prosthetic implant were used for restoration. Findings: The method allows planning the implant position based on two connected bone and soft tissue models and allows to design and manufacture a surgical guide. In this way, it becomes possible to place implants in the patient's bone during surgery procedure in the planned position and to install the prosthetic implant restoration in the form of an individual abutment and a PMMA crown during the same procedure in the surgical part. Practical implications: Thanks to the method of computer-aided design/manufacturing CAD/CAM production of surgical templates and prosthetic restoration based only on digital models and the planned position of the implant, it is possible to carry out the procedure of immediate tooth extraction and replacement with permanent prosthetic restoration. The whole process is based on the CBCT test performed at the beginning. The presented method allows shortening the procedure time by four times and the rehabilitation time by 3-6 months when performing the procedure in a minimally invasive manner. Originality/value: This article presents the original design and production method of surgical guides. It allows for precise planning of the implant position and transfer of this data to the patient's mouth during the procedure, enabling permanent prosthetic restoration before starting medical procedures.

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Application of polymer impression masses for the obtaining of dental working models for the stereolithographic 3D printing

Dobrzański L. B., Achtelik-Franczak A., Dobrzańska J., Pietrucha P.

Archives of Materials Science and Engineering

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2019

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Vol. 95, nr 1

31--40

EN

Purpose: The aim of the work is to execute measurements of digital dental models taken by scanning prosthetic impressions using the engineering CAD software and finding dimensional differences and scale factor for precise reproduction of patient tooth dimensions. Design/methodology/approach: Tests were carried out involving the execution of 3 series of impressions for selected impression materials, which were then scanned using two types of prosthetic scanners. Gypsum models based on mentioned impressions were scanned and dimensionally compared with impression-based digital models. Benchmark impressions were also performed in order to verify the obtained results and determine the correction factor for dimensions. The dimensional differences between impression groups were calculated by using Engineering CAD software. Findings: It was found, that compared to the base model, the digital model has a smaller volume than the object being mapped, the digital models based directly on the impression should be 0.09 - 0.12% rescaled to match the dimensions of the base model. Research limitations/implications: It is necessary to perform a practical verification of the results achieved and apply the determined coefficient in practice by creating working models using precise devices such as a 3D SLA printer and verify their results with intraoral scanner based models. Practical implications: This test will allow making precise working models using a 3D printer, allowing finally to perform, for example, implant-based bridges directly from the level of implants, using the masses described in the study. Originality/value: The comparative studies of polyvinyl siloxane and alignate impression materials were carried out in order to measure dimensional differences between working models made directly from the impression and gypsum models and compared with pattern, which allowed to determine the expansion coefficient, which will allow to work in 3D printing technology with close representation of real situation in the patient's oral cavity, which is particularly important when performing full arch bridges and extensive work on implants, including direct implants. The work has practical applications for both dental engineers and dentists performing advanced prosthetic work.

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The new generation of the biologicalengineering materials for applications in medical and dental implant-scaffolds

Dobrzański L. A., Dobrzańska-Danikiewicz A. D., Czuba Z. P., Dobrzański L. B., Achtelik-Franczak A., Malara P., Szindler M., Kroll L.

Archives of Materials Science and Engineering

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2018

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Vol. 91, nr 2

56--85

EN

Purpose: The publication aims to find the relationship between the proliferation of surface layers of living cells and the deposition of thin atomic layers deposition ALD coatings on the pores internal surfaces of porous skeletons of medical and dental implant-scaffolds manufactured with the selective laser deposition SLS additive technology using titanium and Ti6Al4V alloy. Design/methodology/approach: The extensive review of the literature presents the state-of-the-art in the field of regenerative medicine and tissue engineering. General ageing of societies, increasing the incidence of oncological diseases and some transport and sports accidents, and also the spread of tooth decay and tooth cavities in many regions of the world has taken place nowadays. Those reasons involve resection of many tissues and organs and the need to replace cavities, among others bones and teeth through implantation, more and more often hybridized with tissue engineering methods. Findings: The results of investigations of the structure and properties of skeleton microporous materials produced from titanium and Ti6Al4V alloy powders by the method of selective laser sintering have been presented. Particularly valuable are the original and previously unpublished results of structural research using high-resolution transmission electron microscope HRTEM. Particular attention has been paid to the issues of surface engineering, in particular, the application of flat TiO2 and Al2O3 coatings applied inside micropores using the atomic layers deposition ALD method and hydroxyapatite applied the dip-coating sol-gel method, including advanced HRTEM research. The most important part of the work concerns the research of nesting and proliferation of live cells of osteoblasts the hFOB 1.19 (Human ATCC - CRL - 11372) culture line on the surface of micropores with surfaces covered with the mentioned layers. Research limitations/implications: The investigations reported in the paper fully confirmed the idea of the hybrid technology of producing microporous implants and implant-scaffolds to achieve original Authors’ biological-engineering materials. The surface engineering issues, including both flat-layered nonorganic coatings and interactions of those coverings with flat layers of living cells, play a crucial role. Originality/value: Materials commonly used in implantology and the most commonly used materials processing technologies in those applications have been described. Against that background, the original Authors' concept of implant-scaffolds and the application of microporous skeleton materials for this purpose have been presented.

8

Metallic skeletons as reinforcement of new composite materials applied in orthopaedics and dentistry

Dobrzański L. A., Dobrzańska-Danikiewicz A. D., Czuba Z. P., Dobrzański L. B., Achtelik-Franczak A., Malara P., Szindler M., Kroll L.

Archives of Materials Science and Engineering

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2018

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Vol. 92, nr 2

53--85

EN

Purpose: The article concerns the development of completely new groups of composite materials that can be used to produce functional replacements for damaged bones or teeth. Design/methodology/approach: A selective laser sintering was used to produce the reinforcement of those materials from titanium and its Ti6Al4V alloy in the form of skeletons with pores with adjustable geometric features. The matrix of those materials is either air or crystallised from the liquid AlSi12 or AlSi7Mg0.3 alloys condition after prior vacuum infiltration or human osteoblast cells from the hFOB 1.19 (Human ATCC - CRL - 11372) culture line. Findings: The porous material may be used for the non-biodegradable scaffold. After implantation into the body in the form of an implant-scaffold one, it allows the natural cells of the patient to grow into the pores of the implant, and it fuses with the bone or the appropriate tissue over time. The essential part of the implant-scaffold is the porous part inseparably connected with the core of solid materials. Into pores can grow living cells. Research limitations/implications: Biological-engineering composite materials in which natural cells were cultured in the pores in the laboratory next are combined as an artificial material with the natural cells of the patient in his/her body. Practical implications: The hybrid technologies of the all group of those materials were obtained and optimised. Numerous structure research was carried out using the most modern research methods of contemporary materials engineering, and mechanical tests and biological research involving the cultivation of natural cells were realised. Originality/value: The results of the research indicate the accuracy of the idea of implementing a new group of biological-engineering materials and the wide possibilities of their application in regenerative medicine.

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Screw-retained full arch restorations – methodology of computer aided design and manufacturing

Malara P., Dobrzański L. B

Archives of Materials Science and Engineering

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2017

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Vol. 83, nr 1

23--29

EN

Purpose: The aim of the paper is to present the designing and manufacturing process of the screw-retained superstructure of the dental arch in the maxilla based on six implants using CAD/CAM technology. Design/methodology/approach: The methodology is presented on the example of the implantoprosthetic treatment in a 55-year-old female patient with a significant deficit of the alveolar bone. 6 implants were placed to achieve a good anchorage for the ceramic suprastructure. The prosthetic reconstruction was milled out of a zirconium dioxide block and covered with veneering ceramics to obtain good aesthetics of the restoration. Special copings were designed and manufactured to achieve stabile connection between the implants and the suprastructure. Findings: To properly plan the prosthetic work rebuilding the alveolar ridge on dental implants it is necessary to plan the final prosthetic work before implant placement planning the number of implants and their location in the bones and the possibility of using a fixed or a mobile suprastructure. Practical implications: Design of the suprastructure has to take into account the following factors: 1. The number of implants, copings and openings for the abutment screws, 2. Arrangement of teeth in the prosthesis, 3. The shape of the alveolar ridge, 4. The shape of the space for the porcelain and for the individual crowns, which will be pasted on the suprastructure. Originality/value: For technological reasons it is not possible to make an extensive suprastructure in a single piece. It is necessary to execute the foundation of the reconstruction of the alveolar ridge and the teeth in one piece and separately the individual crowns. It is possible, however, to design and manufacture the complex screw-retained prosthetic suprastructures by means of CAD/CAM technology.

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Computer aided manufacturing and design of fixed bridges restoring the lost dentition, soft tissue and the bone

Malara P., Dobrzański L. B.

Archives of Materials Science and Engineering

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2016

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Vol. 81, nr 2

68--75

EN

Purpose: The aim of the paper is to present the methodology of computer aided designing and manufacturing of an all-ceramic multi-unit bridge restoring missing teeth and the lost soft and hard tissues of the oral cavity as a result of surgical treatment of oral tumor. Design/methodology/approach: The methodology of computer aided designing and manufacturing of the multi-unit all-ceramic bridge was presented on the basis of an actual clinical case of a patient who underwent the surgical treatment of myxoma of the oral cavity. All the steps of clinical and technical production of the bridge were described and illustrated. Findings: It is possible to use the CAD/CAM technology to design and manufacture all-ceramic multi-unit bridges restoring missing teeth and the lost soft and hard tissues of the oral cavity. The design of the bridge must be clinically validated using mock-ups and only then can be implemented for the CAM software. Practical implications: Thanks to the method of designing and manufacturing of multiunit all-ceramic bridges for patients with significant lost of the soft and hard tissues of the mouth it is possible to carry out a prosthetic rehabilitation of patients after trauma and tumor surgery. Originality/value: : The execution of extensive bridges with the maximum available height of about 25 mm requires a high technological rigor at the design and manufacture stage. To ensure longevity of the reconstruction, it is necessary to plan all the work while maintaining the maximum thickness of the substructure. It is desirable to provide minimum of 2 mm thick substructure and the surface of at least 20 mm2 or more in the cross-sections. At the same time, the structure of the bridge must be supported on the alveolar ridge to provide aesthetics and endurance.

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Computer-aided designing and manufacturing of partial removable dentures

Malara P., Dobrzański L. B., Dobrzańska J.

Journal of Achievements in Materials and Manufacturing Engineering

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2015

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Vol. 73, nr 2

157--164

EN

Purpose: The goal of this article is to present the developed methodology of computer-aided designing and manufacturing of removable partial dentures on the example of the free-end situation in the mandible. Design/methodology/approach: The method of designing and manufacturing of removable partial dentures was developed on the basis of real clinical data coming from a patient with a free-end situation in the mandible. The method is focused on completely virtual designing of the partial dentures made of titanium and chrome-cobalt alloys covered with aesthetic acrylic material. Findings: The CAD/CAM produced prosthesis adheres tightly to the tissue improving its stability, retention and evenly transferring loads on the tissue, causing less interference in the oral mucosa. Research limitations/implications: The development of the precise design procedures, including CAD/CAM, for fabrication of partial dentures is justified because there is still a large group of patients who would benefit from improving the accuracy of these solutions. Practical implications: The development of the precise design procedures, including CAD/CAM, for fabrication of partial dentures is justified because there is still a large group of patients who would benefit from improving the accuracy of these solutions. Originality/value: This paper presents an original method of designing and manufacturing of removable partial dentures. This allows for precise planning of the shape of the denture frame in relation to individual anatomy of the teeth and the soft tissue of the oral cavity. The execution of the CAD/CAM technology allows to avoid changes of the volume and shape of the prosthesis that is very common in conventional manufacturing procedures.

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Fabrication Of Scaffolds From Ti6Al4V Powders Using The Computer Aided Laser Method

Dobrzański L. A., Dobrzańska-Danikiewicz A. D., Malara P., Gaweł T. G., Dobrzański L. B., Achtelik-Franczak A.

Archives of Metallurgy and Materials

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2015

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Vol. 60, iss. 2A

1065--1070

EN

The aim of the research, the results of which are presented in the paper, is to fabricate, by Selective Laser Melting (SLM), a metallic scaffold with Ti6Al4V powder based on a virtual model corresponding to the actual loss of a patient’s craniofacial bone. A plaster cast was made for a patient with a palate recess, and the cast was then scanned with a 3D scanner to create a virtual 3D model of a palate recess, according to which a 3D model of a solid implant was created using specialist software. The virtual 3D solid implant model was converted into a 3D porous implant model after designing an individual shape of the unit cell conditioning the size and three-dimensional shape of the scaffold pores by multiplication of unit cells. The data concerning a virtual 3D porous implant model was transferred into a selective laser melting (SLM) device and a metallic scaffold was produced from Ti6Al4V powder with this machine, which was subjected to surface treatment by chemical etching. An object with certain initially adopted assumptions, i.e. shape and geometric dimensions, was finally achieved, which perfectly matches the patient bone recesses. The scaffold created was subjected to micro-and spectroscopic examinations.

PL

Celem badań, których wyniki zaprezentowano w artykule jest wytworzenie, metodą selektywnego topienia laserowego (SLM), scaffoldu metalowego z proszku Ti6Al4V na podstawie wirtualnego modelu odpowiadającego rzeczywistemu ubytkowi kości twarzoczaszki pacjenta. Od pacjenta z ubytkiem podniebienia pobierano wycisk gipsowy, który następnie zeskanowano za pomocą skanera 3D, w celu uzyskania wirtualnego modelu 3D ubytku podniebienia, na podstawie którego z użyciem specjalistycznego oprogramowania utworzono model 3D litego implantu. Po zaprojektowaniu indywidualnego kształtu komórki jednostkowej, determinującej wielkość i trójwymiarowy kształt porów scaffoldu, poprzez multiplikację komórek jednostkowych przekształcono wirtualny model 3D implantu litego w model 3D implantu porowatego. Dane dotyczące wirtualnego modelu 3D implantu porowatego przetransferowano do urządzenia służącego do selektywnego topienia laserowego (SLM) i z użyciem tej maszyny z proszku Ti6Al4V wytworzono metalowy scaffold, który poddano obróbce powierzchniowej poprzez trawienie chemiczne. Finalnie otrzymano obiekt o założonych na wstępie: kształcie i wymiarach geometrycznych, które idealnie odpowiadają ubytkowi kości pacjenta. Wytworzony scaffold poddano badaniom mikro i spektroskopowym.

13

Designing and manufacturing of implantoprosthetic fixed suprastructures in edentulous patients on the basis of digital impressions

Malara P., Dobrzański L. B.

Archives of Materials Science and Engineering

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2015

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Vol. 76, nr 2

163--171

EN

Purpose: The aim of the paper is to present the method of computer aided planning and manufacturing of a prosthetic suprastructure based on 6 implants in the totally edentulous mandible using digital intraoral scans. Design/methodology/approach: TThe method of computer aided planning and manufacturing of the implantoprosthetic restoration in the completely edentulous mandible using digital scans is presented on the example of a real clinical case of a patient with a significant deficit of alveolar bone qualified for the implant treatment. The abutments and the final fixed metal-ceramic bridge was designed and manufactured only on the basis of digital scanning of the intraoral supporting area instead of using traditional impression materials and trays. Findings: The method of computer-aided design and manufacturing of fixed restorations in the mandible using a digital scan of the supporting area is a powerful technique for improving the treatment process, through which the clinician and the patient may obtain satisfactory results in terms of functionality and aesthetics. Practical implications: The experience gained by the authors of the article in the technique of computer aided designing and manufacturing of fixed bridges on the basis of digital intraoral scans allows for the formulation of rules that must be followed at both clinical and laboratory stages. The properly performed scanning allows to obtain greater precision of the final restoration in terms of fit and occlusal accuracy. Originality/value: This paper presents an original methodology of obtaining information about intraoral configuration of the soft tissues and the position of the implants with the use of digital scanning. This method allows for designing and manufacturing of both the abutments and the final restoration without using impression materials which is especially useful in patients with significant bone loss and the gag reflex.

14

Computer-aided design and manufacturing of dental surgical guides based on cone beam computed tomography

Malara P., Dobrzański L. B.

Archives of Materials Science and Engineering

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2015

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Vol. 76, nr 2

140--149

EN

Purpose: The aim of the paper is to present the own method of design and manufacturing of surgical guides on the basis of cone beam computed tomography (CBCT) scans and three-dimensional models of teeth and soft tissue obtained from impressions or intraoral optical scans, which are possible to use during surgical implant placement. Design/methodology/approach: The method of designing and manufacturing of surgical guides was developed on the basis of real clinical data coming from patients with severe bone deficit qualified for implantological treatment. The model of bone and virtual model of soft tissues were combined together. The project of the prosthetic restoration imposed on the virtual model of the bone was used to plan the position of the implants. The final surgical guide was manufactured with the use of a CNC milling machine. Findings: The method enables planning of the implant position based on two combined models of the bone and soft tissues and allows to design and manufacture a surgical guide. Thus, it becomes possible to place the implants in the bone of the patient during a surgical procedure in a preplanned position. Practical implications: Thanks to the method of designing and manufacturing of surgical guides a range of clinical tasks in preparation of the guides is restricted to registration of the intraoral situation, taking of CBCT scans of the bone and determination of the type of the prosthetic restoration. Properly made surgical guides allow to shorten the time of the surgical procedure and carry it out in a minimally invasive manner. Originality/value: This paper presents an original method of designing and manufacturing of surgical guides. This allows for precise planning of the position and the number of implants and the transfer of these data into the mouth of a patient during the surgery without the use of commercially available closed software.

15

Comparative analysis of mechanical properties of scaffolds sintered from Ti and Ti6Al4V powders

Dobrzański L. A., Dobrzańska-Danikiewicz A. D., Achtelik-Franczak A., Dobrzański L. B.

Archives of Materials Science and Engineering

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2015

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Vol. 73, nr 2

69--81

EN

Purpose: The aim of the article is to present and compare the results of studies into mechanical properties, including mainly tensile and compressive strength of scaffolds fabricated from Ti and Ti6Al4V in Selective Laser Sintering (SLS) for specific sintering conditions. Design/methodology/approach: Titanium scaffolds characterised by the different size of pores were fabricated on the basis of 3D CAD models of samples for tensile and compressive strength examinations prepared with AutoFab software for a selected unit cell. The so prepared samples were subject to tensile and compressive strength examinations with a universal tensile testing machine Zwick 020. Findings: The results of examinations of mechanical properties of pristine titanium and its alloy Ti6Al4 showing differences in the strength of the two materials and allowing to characterise each of them. The size of pores and the shape and manner of arrangement of a unit cell building the scaffold influences substantially the strength properties of titanium scaffolds. Practical implications: The scaffolds with specific strength properties fabricated in the SLS process create conditions for their application in dental engineering and in jaw-face reconstructions. Originality/value: The original results of tensile and compressive strength examinations of the created scaffolds. The innovative application of the rapid manufacturing technology for the purpose of regenerative medicine may greatly influence the development of this field of medicine.

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60-lecie działalności Wydziału Mechanicznego Technologicznego Politechniki Śląskiej w Gliwicach

Dobrzański L. B.

Hutnik, Wiadomości Hutnicze

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2005

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Vol. 72, nr 3

142--149

PL

W artykule przedstawiono rys historyczny Wydziału Mechanicznego Technologicznego jako jednego z 4 najstarszych i obecnie największych Wydziałów Politechniki Śląskiej w Gliwicach. Przedstawiono strukturę xorganizacyjną Wydziału oraz zakres aktywności naukowej i dydaktycznej, a także współpracę zagraniczną. Zaprezentowano cele Światowego Kongresu „COMMENT 2005" organizowanego z okazji 60-lecia Wydziału.

EN

In the paper the historical profile of the Faculty of Mechanical Engineering as one of the oldest and at present the biggest Faculties of the Silesian University of technology in Gliwice has been presented. The organisational structure and the scientific and didactic scope of the Faculty and the intemational cooperation have been described. The aims of the COMMENT 2005 Worldwide Congress organised on the occasion of the 60"1 anniversary of the Faculty has been written.