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Wael Att, DDS, Dr med dent, PhD, is a board-certified prosthodontist and internationally recognized leader in prosthetic, esthetic, and implant dentistry. He currently serves as Professor and Chairman of the Department of Prosthodontics at Tufts University School of Dental Medicine in Boston, USA, and as Professor of Prosthodontics at the University of Freiburg in Germany, where he has held a faculty position since 2012. He earned his DDS degree in 1997 from Tishreen University, followed by a Dr. Med. Dent. (2003), PhD (2010), and the title of Extraordinary Professor (2013) from the University of Freiburg, where he also completed postgraduate education in perio-prosthodontics.
From 2005 to 2007, Dr. Att was a visiting assistant professor at the Weintraub Center for Reconstructive Biotechnology at UCLA School of Dentistry. He then served as Director of the Postgraduate Program in Prosthodontics at the University of Freiburg from 2007 to 2017. Between 2018 and 2023, he held the position of Professor and Chair of the Department of Prosthodontics at Tufts University.
Dr. Att is the Founder and Owner of The Face Dental Group in Boston, USA, established in 2022. He also holds leadership roles in various professional organizations, currently serving as President of the International Academy for Digital Dental Medicine (IADDM), President of the Arabian Academy of Esthetic Dentistry (ARAED), and Head of the International Team for Implantology (ITI) Education Delegate in the USA. He is also the USA Ambassador for the European Association for Osseointegration (EAO) and a past president of the Prosthodontics Group of the International Association for Dental Research (IADR).
He is an active member of several prestigious organizations including the European Academy of Esthetic Dentistry (EAED), Greater New York Academy of Prosthodontics (GNYAP), International Academy of Digital Dental Medicine, International College of Prosthodontists, and the Academy of Prosthodontics (AP). Dr. Att has published more than 160 peer-reviewed scientific papers and is the author of the textbook Digital Workflow in Reconstructive Dentistry(Quintessence Publishing). He also serves as Associate Editor for the International Journal of Esthetic Dentistry (IJED)and the International Journal of Prosthodontics (IJP).
His research and clinical work focus on esthetic and implant dentistry, full-arch rehabilitations, and the integration of advanced digital technologies in reconstructive and multidisciplinary dental care. He is the co-developer of the STAR-Concept for immediate full-arch implant dentistry and is a highly sought-after lecturer worldwide.
Details make perfectionoctubre 24, 2024 — octubre 26, 2024MiCo - Milano Convention Centre, Milano, Italia
Ponentes: Bilal Al-Nawas, Gil Alcoforado, Federico Hernández Alfaro, Sofia Aroca, Wael Att, Gustavo Avila-Ortiz, Kathrin Becker, Anne Benhamou, Juan Blanco Carrión, Dieter Bosshardt, Daniel Buser, Francesco Cairo, Paolo Casentini, Raffaele Cavalcanti, Tali Chackartchi, Renato Cocconi, Luca Cordaro, Luca De Stavola, Nuno Sousa Dias, Egon Euwe, Vincent Fehmer, Alberto Fonzar, Helena Francisco, Lukas Fürhauser, German O. Gallucci, Oscar Gonzalez-Martin, Dominik Groß, Robert Haas, Alexis Ioannidis, Simon Storgård Jensen, Ronald Jung, France Lambert, Luca Landi, Georg Mailath-Pokorny jun., Silvia Masiero, Iva Milinkovic, Carlo Monaco, José Nart, José M. Navarro, Katja Nelson, Manuel Nienkemper, David Nisand, Michael Payer, Sergio Piano, Bjarni E. Pjetursson, Sven Reich, Isabella Rocchietta, Giuseppe Romeo, Irena Sailer, Mariano Sanz, Ignacio Sanz Martín, Frank Schwarz, Shakeel Shahdad, Massimo Simion, Ralf Smeets, Benedikt Spies, Bogna Stawarczyk, Martina Stefanini, Hendrik Terheyden, Tiziano Testori, Daniel Thoma, Ana Torres Moneu, Piero Venezia, Lukas Waltenberger, Hom-Lay Wang, Stefan Wolfart, Giovanni Zucchelli, Otto Zuhr
European Association for Osseintegration (EAO)
International Esthetic Days
Digital excellence across disciplinesseptiembre 19, 2024 — septiembre 21, 2024Palau de Congressos de Palma, Palma de Mallorca, España
Ponentes: Eirik Aasland Salvesen, Wael Att, Andrea Bazzucchi, Andre Chen, Maja Chmielewska, Karim Dada, Mona Eide-Gast, Vincent Fehmer, Roshi Frafjord, Fernando Franch, Ophir Fromovich, Nuno Gil, Oscar Gonzalez-Martin, Sanaa Kader, France Lambert, Adriaens Laurence , Diego Lops, Mark Lowe, James Mah, Patrice Margossian, Alberto Monje, Léon Parienté, Lucrezia Paternò Holtzman, Alessandro Perucchi, Sonia Presencia Pascual, Algirdas Puišys, Cristian Scognamiglio, Prav Solanki, Gabor Tepper, Jasper Thoolen, Jochen Tunkel, Kay Vietor, Eglė Vindašiūtė-Narbutė, Sarah Weston
Straumann GmbH
Spear Summit
Thriving Togetherjunio 20, 2024 — junio 22, 2024JW Marriott Phoenix Desert Ridge, Phoenix, Estados Unidos de América
Ponentes: Wael Att, Oded Bahat, Florin Cofar, Ronaldo Hirata, Robert (Tito) Norris, Stavros Pelekanos, Carlo E. Poggio, Tony Rotondo, Taiseer Sulaiman
Spear Education
3rd International SIPRO Congress
Prosthesis or Oral Rehabilitation? Sustainable solutionsmayo 23, 2024 — mayo 25, 2024Palazzo dei Congressi, Firenze, Italia
Ponentes: Alessandro Agnini, Wael Att, Leonardo Bacherini, Leonello Biscaro, Alessio Casucci, Paola Ceruti, Mauro Cozzani, Marco Ferrari, Mauro Fradeani, Anna Franchini, Henriette Terezia Lerner, Lucio Lo Russo, Daniele Manfredini, Costanza Micarelli, Eitan Mijiritsky, Carlo E. Poggio, Paola M. Poggio, Michele Rossini, Nicola M. Sforza
Italian Society of Prosthodontic and Oral Rehabilitation (SIPRO)
The 9th World Dental Meeting in Japan 2023
No Dentistry, No Wellness!septiembre 29, 2023 — octubre 1, 2023Pacifico Yokohama Conference Center, Yokohama, Japón
Ponentes: Alessandro Agnini, Andrea Mastrorosa Agnini, Wael Att, Gustavo Avila-Ortiz, Markus B. Blatz, Victor Clavijo, Karim Dada, Glécio Vaz de Campos, Vincent Fehmer, Naoki Hayashi, Mario Imburgia, Guillaume Jouanny, Sérgio Kahn, Bertrand Khayat, Christopher Köttgen, Stefen Koubi, Tomas Linkevičius, Nazariy Mykhaylyuk, Ravindra Nanda, Andreas Nolte, Léon Parienté, Jose Manuel Reuss , Domenico Ricucci, Isabella Rocchietta, Irena Sailer, Todd R. Schoenbaum, Werner Schupp, Sandra Khong Tai, Istvan Urban, Eric Van Dooren, Débora R. Vilaboa, Otto Zuhr
Quintessence Publishing Co. Ltd. Japan
ISC 2023 – The 26th International Symposium on Ceramics
Simplicity Meets Estheticsjunio 8, 2023 — junio 11, 2023Town and Country Resort, San Diego, Estados Unidos de América
Ponentes: Wael Att, Diego Bechelli, Markus B. Blatz, Domenico Cascione, Gerard J. Chiche, Stephen J. Chu, Victor Clavijo, Florin Cofar, Iván Contreras Molina, Don Cornell, Lee Culp, Vincent Fehmer, Mirela Feraru, German O. Gallucci, Petra Gierthmühlen, Gustavo Giordani, David Guichet, Galip Gürel, Effrat Habsha, Hilal Kuday, Kenneth A. Malament, Adam J. Mieleszko, Ricardo Mitrani, Masayuki Okawa, Jacinthe M. Paquette, Joshua Polansky, Marta Revilla-León, Giuseppe Romeo, Irena Sailer, John Sorensen, Martina Stefanini, Taiseer Sulaiman, Douglas A. Terry, Van Thompson, George Tysowsky, Eric Van Dooren, Yu Zhang
Quintessence Publishing Co., Inc. USA
12th World Congress of Esthetic Dentistry – IFED 2022
octubre 27, 2022 — octubre 29, 2022Conrad Abu Dhabi Etihad Towers, Abu Dhabi, Emiratos Árabes Unidos
Ponentes: Gil Alcoforado, Andreas Bindl, Renato Cocconi, Luca Cordaro, David De Franco, Didier Dietschi, Vincent Fehmer, Stefano Gracis, Dan Grauer, Sonia Leziy, Feng Liu, Baldwin Marchack, Francesco Mintrone, Robert Relle, Giovanni Zucchelli
International Federation of Esthetic Dentistry
The 14th International Symposium on Periodontics and Restorative Dentistry (ISPRD)
junio 9, 2022 — junio 12, 2022Boston Marriott Copley Place, Boston, MA, Estados Unidos de América
Ponentes: Tara Aghaloo, Edward P. Allen, Evanthia Anadioti, Wael Att, Vinay Bhide, Markus B. Blatz, Scotty Bolding, Lorenzo Breschi, Jeff Brucia, Daniel Buser, Luigi Canullo, Daniele Cardaropoli, Stephen J. Chu, Donald Clem, Christian Coachman, Lyndon F. Cooper, Daniel Cullum, Lee Culp, José Carlos Martins da Rosa, Sergio de Paoli, Marco Degidi, Nicholas Dello Russo, Serge Dibart, Joseph P. Fiorellini, Mauro Fradeani, Stuart J. Froum, David Garber, Maria L. Geisinger, William Giannobile, Luca Gobbato, Ueli Grunder, Galip Gürel, Chad Gwaltney, Christoph Hämmerle, Robert A. Horowitz, Marc Hürzeler, David Kim, Gregg Kinzer, Christopher Köttgen, Ina Köttgen, Purnima S. Kumar, Burton Langer, Lydia Legg, Pascal Magne, Kenneth A. Malament, Jay Malmquist, George Mandelaris, Pamela K. McClain, Michael K. McGuire, Mauro Merli, Konrad H. Meyenberg, Craig M. Misch, Julie A. Mitchell, Marc L. Nevins, Myron Nevins, Michael G. Newman, Miguel A. Ortiz, Jacinthe M. Paquette, Stefano Parma-Benfenati, Michael A. Pikos, Giulio Rasperini, Pamela S. Ray, Christopher R. Richardson, Isabella Rocchietta, Marisa Roncati, Marco Ronda, Paul S. Rosen, Maria Emanuel Ryan, Irena Sailer, Maurice Salama, David M. Sarver, Takeshi Sasaki, Todd Scheyer, Massimo Simion, Michael Sonick, Sergio Spinato, Dennis P. Tarnow, Lorenzo Tavelli, Douglas A. Terry, Tiziano Testori, Carlo Tinti, Istvan Urban, Hom-Lay Wang, Robert Winter, Giovanni Zucchelli
Quintessence Publishing Co., Inc. USA
Artículos de este autor en revistas
The International Journal of Prosthodontics, Pre-Print
marzo 3, 2021,Páginas 1-20, Idioma: InglésMostafavi, Delaram / Methani, Mohammed M / Piedra-Cascón, Wenceslao / Zandinejad, Amirali / Att, Wael / Revilla-León, Marta
Purpose: To measure the influence of postpolymerization condition (dry or submerged in water) and time (2, 10, 20, and 40 minutes) on the accuracy of additively manufactured model material.
Materials and methods: A bar standard tessellation language file was used to manufacture the resin specimens (E-Model Light, EnvisionTEC) using a 3D printer (Vida HD, EnvisionTEC). Two groups were created based on the postpolymerization condition: dry (D group) or submerged in water (W group). Each group was divided into four subgroups (D1 to D4 and W1 to W4) depending on the postpolymerizing time (2, 10, 20, and 40 minutes; n = 20 each; N = 160). The specimen dimensions were measured using a low-force digital caliper (Absolute Low Force Caliper Series 573, Mitutoyo). The volume was calculated: V = l × w × h. Shapiro-Wilk test revealed that the data were not normally distributed. Data were analyzed using Kruskal-Wallis and pairwise Mann-Whitney U tests (α = .05).
Results: Significant differences in length, width, height, and volume values were found among the subgroups (P < .0018). In all groups, the width dimension (x-axis) presented the worst accuracy compared to height (z-axis) and length (y-axis) (P < .0018). The D2 and D4 subgroups obtained the closest dimensions to the virtual design; additionally, no significant differences were found between the two subgroups (P < .0018). Dry condition showed higher manufacturing accuracy compared to the water-submerged condition. In the water-submerged subgroups, the highest accuracy was obtained in the W2 and W4 subgroups (P < .0018).
Conclusion: Postpolymerization conditions and time influenced the accuracy of the material tested. Dry postpolymerization condition with a time of 10 and 40 minutes obtained the highest accuracy.
The International Journal of Prosthodontics, 2/2024
DOI: 10.11607/ijp.8852, ID de PubMed (PMID): 38270461Páginas 221-224, Idioma: InglésRevilla-León, Marta / Barmak, Basir A. / Sailer, Irena / Kois, John C. / Att, Wael
Purpose: To compare the performance of licensed dentists and two software versions (3.5 legacy and 4.0) of an artificial intelligence (AI)-based chatbot (ChatGPT) answering the exam for the 2022 Certification in Implant Dentistry of the European Association for Osseointegration (EAO). Materials and Methods: The 50-question, multiple-choice exam of the EAO for the 2022 Certification in Implant Dentistry was obtained. Three groups were created based on the individual or program answering the exam: licensed dentists (D group) and two software versions of an artificial intelligence (AI)-based chatbot (ChatGPT)—3.5 legacy (ChatGPT-3.5 group) and the 4.0 version (ChatGPT-4.0 group). The EAO provided the results of the 2022 examinees (D group). For the ChatGPT groups, the 50 multiple-choice questions were introduced into both ChatGBT versions, and the answers were recorded. Pearson correlation matrix was used to analyze the linear relationship among the subgroups. The inter- and intraoperator reliability was calculated using Cronbach’s alpha coefficient. One-way ANOVA and Tukey post-hoc tests were used to examine the data (α = .05). Results: ChatGPT was able to pass the exam for the 2022 Certification in Implant Dentistry of the EAO. Additionally, the software version of ChatGPT impacted the score obtained. The 4.0 version not only pass the exam but also obtained a significantly higher score than the 3.5 version and licensed dentists completing the same exam. Conclusions: The AIbased chatbot tested not only passed the exam but performed better than licensed dentists.
Purpose: To measure the influence of postpolymerization condition (dry and water-submerged) and time (2, 10, 20, and 40 minutes) on the accuracy of additively manufactured model material. Materials and Methods: A bar standard tessellation language (STL) file was used to manufacture all the resin specimens using a 3D printer. Two groups (n = 80 each) were created based on postpolymerization condition: dry (D group) and water-submerged (W group). Each group was then divided into four subgroups (D1 to D4 and W1 to W4; n = 20 each), which were each assigned a postpolymerizing time (2, 10, 20, and 40 minutes). The specimens’ dimensions were measured using a low-force digital caliper. The volume was calculated as follows: V = l × w × h. Shapiro-Wilk test revealed that the data were not normally distributed. Data were analyzed using Kruskal-Wallis and pairwise Mann-Whitney U tests (α = .05). Results: Significant differences in length, width, height, and volume were found among the subgroups (P < .0018). In all groups, the width dimension (x-axis) presented less accuracy compared to height (z-axis) and length (y-axis) (P < .0018). The D2 and D4 subgroups obtained the closest dimensions to the virtual design, and there were no significant differences between these subgroups (P < .0018). The dry condition showed higher manufacturing accuracy than the water-submerged condition. In the water-submerged subgroups, the highest accuracy was obtained in the W2 and W4 subgroups (P < .0018). Conclusions: Postpolymerization condition and time influenced the accuracy of the material tested. The dry postpolymerization condition with times of 10 and 40 minutes obtained the highest accuracy.
Purpose: To systematically review all clinical studies focusing on the clinical outcomes of zirconia restorations bonded to different types of tooth or implant abutments and to provide practical clinical guidelines.
Materials and methods: A search was performed for English-language articles in dental journals published up to September 2020 using a combination of free-text words and MeSH terms. Studies were identified for review according to certain inclusion and exclusion criteria.
Results: A total of 2,856 studies were identified, and 24 studies were finally included. The included studies featured different types of surface pretreatment methods, primers, resin cements, tooth and implant abutments, zirconia restorations, and designs. The relatively limited number of identified studies and the heterogeneity of the extracted data did not allow for meta-analysis.
Conclusion: Airborne-particle abrasion (APA) and tribochemical silica (TBS) APA surface pretreatment methods yielded positive clinical outcomes on zirconia/resin bonding to all types of tooth surfaces identified. Chemically activating the APA and the TBS APA zirconia surfaces with an MDP monomer-based primer, along with an MDP monomer or phosphoric ester monomer-based resin cement, seems to be a durable bonding protocol for all types of tooth surfaces identified. Skipping the surface pretreatment method step in the bonding protocol did not affect the clinical outcomes of certain types of zirconia restorations on most types of tooth or implant abutment surfaces identified. Type of resin cement seems to be a less influential factor.
Purpose: To evaluate the mechanical stability of highly translucent zirconia (Zr) cantilevered fixed dental prostheses (cFDPs) and to investigate the influence of the number of implants (one versus two) supporting cFDPs with different restorative materials on their mechanical stability and load-bearing capacity.
Materials and methods: Thirty-two specimens consisting of implant-supported prostheses embedded in resin blocks were fabricated. Sixteen specimens received one implant (bone-level implant, 4.1-mm diameter, 13-mm length; Straumann) to support two-unit cement-retained cFDPs with one extension unit and the other 16 received two implants (bone-level implant, 4.1-mm diameter, 13-mm length; Straumann) positioned corresponding to the missing maxillary central incisors to support three-unit cement-retained cFDPs with one extension unit. Two different prosthetic materials, chromium-cobalt (Cr-Co; Wirobond C+, Bego) and highly translucent Zr (Lava Plus, 3M ESPE) were selected to fabricate the two- and three-unit cFDPs. Standardized twoand three-unit Cr-Co frameworks (CC-I, n = 8; CC-II, n = 8) and highly translucent Zr frameworks (Zr-I, n = 8; Zr-II, n = 8) with a 6-mm cantilever extension were fabricated using CAD/CAM (EOS M 290). Following thermomechanical fatigue loading, the specimens were tested for fracture resistance under static loading. The influence of restoration material and number of supporting implants on fracture resistance were tested using two-way analysis of variance (ANOVA). The level of statistical significance was set below 5% (α < .05).
Results: All specimens survived aging. The mean (± standard deviation) fracture resistance values were 416.25 (± 42.71) N for Zr-I, 548.75 (± 75.41) N for Zr-II, 601.0 (± 41.51) N for CC-I, and 664.5 (± 37.59) N for CC-II. CC and Zr group specimens showed significantly different fracture resistance results (P < .001). The number of implants significantly influenced the fracture resistance of Zr groups (P = .001), whereas the influence was not significant for CC groups (P = .089).
Conclusion: Within the limitations of this in vitro study, highly translucent zirconia cFDP frameworks demonstrated the potential to withstand reported physiologic occlusal forces applied in the anterior region. The increase in the number of implants supporting zirconia cFDPs significantly contributed to achieving higher fracture resistance values.
Palabras clave: dental implants, fixed dental prosthesis, cantilever, zirconia, highly translucent zirconia
The digital workflow in implant dentistry aims to provide safer and predictable implant placement. This is facilitated through visualization of the anatomical structures as well as the integration of the prosthetic information to dictate implant placement. Guided surgery is useful in edentulous arches planned for fixed rehabilitations, where the unfavorable position of the implants may limit the possibility to realize such a treatment option. In full-arch immediate implant placement and immediate loading, computer-guided implant surgery gains a significant importance. Here, clinicians rely on either soft tissue or bone to provide support for the surgical guide during implant placement. Due to tooth extraction and the loss of anatomical structures that improve the support of the surgical guide, the correct positioning of the guide can be challenging. Further, the procedure that follows to deliver the immediate temporary rehabilitation can also be challenging due to the lack of workflow integrity between the surgical and restorative phases. The present case report describes a novel digital workflow for immediate implant placement and immediate loading of a full-arch rehabilitation, which aims to improve the accuracy of implant placement surgery and simplify the procedure of delivering immediate provisional restorations. (Int J Comput Dent 2022;25(3):303–323; doi: 10.3290/j.ijcd.b3380919)
Palabras clave: immediate loading, guided implant placement, virtual planning, surgical guide, prosthetic guide, digital implantology
Purpose: To investigate the volumetric facial soft tissue changes associated with wearing complete dentures using 3D facial scans.
Materials and Methods: A total of 40 volunteers (20 men and 20 women) were recruited for this study and were treated with maxillary and mandibular complete dentures. Six facial scans were taken of each subject; three scans wearing a complete denture and three without the complete denture. The 3D facial scans were taken with the mouth in three positions: closed, relaxed, and smiling. Each scan was superimposed in order to analyze and quantify linear measurements involving 14 soft tissue landmarks and the total volume that the subject gained with the prosthesis.
Results: Three variables were evaluated in each analysis: gender, mouth position, and age. In the analysis of the soft tissue landmarks, there was a significant effect of age, with patients > 75 years showing the greatest changes (P < .05). The landmarks that showed the most changes were those located around the mouth. In the volumetric analysis, the variable with the highest influence was gender, with men gaining more volume than women (P < .05).
Conclusion: Complete dentures have a significant effect on volumetric changes in perioral tissues. These changes are more marked in patients > 75 years. Compared to women, men depicted greater volumetric changes with complete dentures. These results provide a new avenue for clinicians and developers using facial scans to design future restorations for edentulous patients.
Purpose: To evaluate the mechanical stability and complication rates of titanium (Ti) and zirconia (Zr) abutments restored with cantilevered fixed dental prostheses (cFDPs) when supported by one or two implants.
Materials and Methods: A total of 32 specimens were fabricated. Half of the specimens received one implant, and the other half received two implants to simulate the clinical situation of two or three missing maxillary incisors, respectively. Each group was divided into two subgroups (n = 8). The Ti-1 and Ti-2 groups received Ti abutments (Anatomic Abutment, Straumann) supporting two- or three-unit metal cFDPs, respectively, while Zr-1 and Zr-2 groups received Zr abutments (IPS e.max Anatomic Abutment, Straumann). Following the cementation of cFDPs using resin cement (Multilink Automix, Ivoclar Vivadent), the specimens were subjected to thermomechanical fatigue load and then subsequently loaded until fracture in a universal testing machine. Following the static loading test, stereomicroscopic analyses (Carl Zeiss) were done to identify the weakest component of the cFDP, abutment, and implant assembly. Mann-Whitney U test was used to evaluate the effect of the number of supporting implants and abutment material on fracture strength values, and the level of statistical significance was set at 5% (α = .05).
Results: All specimens survived aging, and no screw loosening or fracture was recorded. The mean fracture strength values were 226 N (± 26.45), 551.12 N (± 82.19), 601 N (± 41.51), and 664.5 N (± 37.59) for Zr-1, Zr-2, Ti-1, and Ti-2, respectively. The difference between fracture strength values of the Ti and Zr groups was significant in favor of Ti abutments (P < .001). The number of supporting implants showed a significantly positive effect on the fracture strength of Zr abutments.
Conclusion: Zr abutments demonstrated lower fracture strength values than Ti abutments independent from the number of supporting implants when used under cFDPs. Two implant–supported cFDPs with zirconia abutments have the potential to withstand physiologic forces applied in the anterior region.
Purpose: To systematically review all in vitro studies focusing on the durability of different bonding protocols applied to zirconia restorations with different types of tooth or implant abutments.
Materials and Methods: English-language articles published in dental journals up to March 2020 were searched using a combination of free text words and MeSH terms, as follows: zirconia; Y-TZP; zirconium; zirconia restoration; enamel; dentin; titanium abutment; titanium base; ceramic abutment; dental core; ceramic or metal post and core; composite build-up; bonding; adhesive cement; resin cement; adhesion; cementation; test; material testing; laboratory; and in vitro. Studies were identified for review based on certain inclusion and exclusion criteria.
Results: A total of 3,339 titles were identified. After a successive filtering process, a final total of 28 studies were included. The included studies featured different types of surface pretreatment methods, primers, resin cements, tooth and implant abutments, laboratory test outcomes, and designs. The relatively limited number of the identified studies and the heterogeneity of the extracted data did not allow for meta-analysis.
Conclusions: Zirconia surface pretreatment is an essential step in the bonding protocol. Airborne-particle abrasion surface pretreatment had a positive influence on zirconia resin bonding to most types of tooth and implant abutments identified. Chemically activating the treated zirconia surfaces with an MDP monomer-based primer, along with an MDP monomer or phosphate ester monomer-based resin cement, seems to be a durable bonding protocol. Type of resin cement seems to be a less influential factor.
Das Erfassen von Informationen ist für jedwede prothetische Therapie die Grundlage. Es bedarf diverser Daten – angefangen vom gesundheitlichen Allgemeinzustand über Zahn- sowie Parodontalstatus, Knochenqualität sowie -quantität bis hin zur Kiefergelenkposition und zu funktionellen Gegebenheiten. Der Artikel beschreibt die Möglichkeiten, basierend auf der natürlichen Kopfhaltung („Natural head position“, NHP) des Patienten und unter Beachtung der natürlichen Asymmetrien, das Oberkiefermodell positionsecht in den Artikulator zu übertragen. Dies ist die Grundlage für alle weiteren Arbeitsschritte auf dem Weg zum individuellen Zahnersatz. Durch das Zusammenspiel von digitalen Technologien mit analogen Vorgehensweisen reduziert sich die Anzahl der Einproben im Patientenmund. Ergebnis ist ein effizientes Vorgehen, welches zugleich eine hohe Genauigkeit und Reproduzierbarkeit bietet.
Palabras clave: Okklusionsebene, Bissregistrierung, Implantatprothetik, Gesichtsscanner, natürliche Kopfhaltung
