Zobrazeno 1 - 10
of 77
pro vyhledávání: '"Ralf J, Kohal"'
Autor:
Ralf J. Kohal, Ellen Riesterer, Kirstin Vach, Sebastian B. M. Patzelt, Aljaž Iveković, Lara Einfalt, Andraž Kocjan, Anna-Lena Hillebrecht
Publikováno v:
Journal of Functional Biomaterials, Vol 15, Iss 5, p 122 (2024)
Preclinical and clinical research on two-piece zirconia implants are warranted. Therefore, we evaluated the in vitro fracture resistance of such a zirconia oral implant system. The present study comprised 32 two-piece zirconia implants and abutments
Externí odkaz:
https://doaj.org/article/9d7bffbda9b24a8894900898cd680894
Publikováno v:
Applied Sciences, Vol 14, Iss 6, p 2370 (2024)
Objectives: The aim of this experimental study was to evaluate the accuracy of five intraoral scanners for digitizing fully dentate unprepared maxillae and mandibulae in vitro. Materials and Methods: One maxillary and one mandibular reference model w
Externí odkaz:
https://doaj.org/article/d12bc4c203cb4ac3bc8e95448d350a6b
Publikováno v:
Journal of Functional Biomaterials, Vol 14, Iss 9, p 458 (2023)
The use of computerized optical impression making (COIM) for the fabrication of removable dentures for partially edentulous jaws is a rising trend in dental prosthetics. However, the accuracy of this method compared with that of traditional impressio
Externí odkaz:
https://doaj.org/article/e6f3a234f70f4fc3ae7bdab027e554bf
Autor:
Tabea Flügge, Kirstin Vach, Stefan Schlager, Ralf J. Kohal, Katja Nelson, Jürgen Mehrhof, Florian Kernen, Veronica Seidel Alvarez
Publikováno v:
The Journal of Prosthetic Dentistry. 128:1303-1309
Statement of problem The accuracy of intraoral scanners is a prerequisite for the fabrication of dental restorations in computer-aided design and computer-aided manufacturing (CAD-CAM) dentistry. While the precision of intraoral scanners has been inv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fd29523d3bd887a5d835ae569a4d527
https://doi.org/10.1016/j.prosdent.2021.03.007
https://doi.org/10.1016/j.prosdent.2021.03.007
Autor:
Babak Saravi, Anselm Flohr, Sebastian B. Patzelt, Benedikt C. Spies, Derek Hazard, Ralf J. Kohal
Publikováno v:
Materials; Volume 15; Issue 19; Pages: 6927
Polyether ether ketone (PEEK) has been introduced into implant dentistry as a viable alternative to current implant abutment materials. However, data on its physico-mechanical properties are still scarce. The present study sought to shed light on thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c68e5528410a4a84efbd29cc07e71d5
https://pubmed.ncbi.nlm.nih.gov/36234281
https://pubmed.ncbi.nlm.nih.gov/36234281
Autor:
Ralf J. Kohal, Guido Sterzenbach, Benedikt Christopher Spies, Marei Krügel, Stefano Pieralli, Florian Beuer, Gregor Wemken, Christian Wesemann
Publikováno v:
Dental Materials. 37:432-442
Objectives To investigate the wear resistance of polymers for injection molding, subtractive and additive manufacturing of occlusal devices in comparison with enamel antagonist wear and material properties (i.e., hardness, flexural strength, and flex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ee99fe31373b20fc46f7c4b7f2a15dae
https://doi.org/10.1016/j.dental.2020.11.020
https://doi.org/10.1016/j.dental.2020.11.020
Autor:
Fei Zhang, Benedikt C. Spies, Evita Willems, Masanao Inokoshi, Christian Wesemann, Stevan M. Cokic, Benedikt Hache, Ralf J. Kohal, Brigitte Altmann, Jef Vleugels, Bart Van Meerbeek, Kerstin Rabel
Publikováno v:
Acta biomaterialia. 150
Dental implants need to combine mechanical strength with promoted osseointegration. Currently used subtractive manufacturing techniques require a multi-step process to obtain a rough surface topography that stimulates osseointegration. Advantageously
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2c76a189f5a94b1b536f2f0bc8cbd8f
https://pubmed.ncbi.nlm.nih.gov/35902036
https://pubmed.ncbi.nlm.nih.gov/35902036
Autor:
E. Fritzer, Ralph G. Luthardt, Nicole Passia, Christoph Behrendt, Ralf J. Kohal, Franz Sebastian Schwindling, Nadine Frfr von Maltzahn, Stefan Wolfart, Michael Rädel, Daniel R. Reissmann, Matthias Kern
Publikováno v:
Clinical Oral Implants Research. 32:212-221
Objectives This multicenter randomized controlled clinical trial was conducted to investigate whether the loading protocol of single dental implants placed in the midline of edentulous mandibles will influence the implant survival or prosthetic maint
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::445cc0985abdb6b2a6cb006788c6648b
https://doi.org/10.1111/clr.13692
https://doi.org/10.1111/clr.13692
Autor:
David K. Dennison, Ralf J. Kohal
Publikováno v:
Current Oral Health Reports. 7:344-351
Purpose of Review The goal of the present review is to update the reader on the scientific background of zirconia ceramic implants. Clinical investigations using zirconia ceramic implants over the last couple of years have brought up some new develop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6444684d9110c96fbc8e62b7d42397d2
https://doi.org/10.1007/s40496-020-00289-9
https://doi.org/10.1007/s40496-020-00289-9
Autor:
Ralf J. Kohal, Janina Müller, Peter Bronsert, Rogerio M. Castilho, Tobias Fretwurst, Derek Hazard, Lena Larsson, Gerhard Iglhaut, Katja Nelson
Publikováno v:
Journal of Periodontology. 92:571-579
Background Aim of the pilot study was the histologic classification of the inflamed peri-implant soft tissue around ceramic implants (CI) in comparison with titanium implants (TI). Methods Peri-implant tissue were retrieved from 15 patients (aged 34
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f739193fddccd24a60423efd94075192
https://doi.org/10.1002/jper.20-0169
https://doi.org/10.1002/jper.20-0169