Group 2 ITI Consensus Report: Technological developments in implant prosthetics
Clinical Oral Implants Research, vol. 34, pp. 104–111
Abstract
OBJECTIVES: Group-2 reviewed the scientific evidence in the field of «Technology». Focused research questions were: (1) additive versus subtractive manufacturing of implant restorations; (2) survival, complications, and esthetics comparing prefabricated versus customized abutments; and (3) survival of posterior implant-supported multi-unit fixed dental prostheses. MATERIALS AND METHODS: Literature was systematically screened, and 67 publications could be critically reviewed following PRISMA guidelines, resulting in three systematic reviews. Consensus statements were presented to the plenary where after modification, those were accepted. RESULTS: Additively fabricated implant restorations of zirconia and polymers were investigated for marginal/internal adaptation and mechanical properties without clear results in favor of one technology or material. Titanium base abutments for screw-retained implant single crowns compared to customized abutments did not show significant differences concerning 1-year survival. PFM, veneered and monolithic zirconia implant-supported multi-unit posterior fixed dental prostheses demonstrated similar high 3-year survival rates, whereas veneered restorations exhibited the highest annual ceramic fracture and chipping rates. CONCLUSIONS: For interim tooth-colored implant single crowns both additive and subtractive manufacturing are viable techniques. The clinical performance of additively produced restorations remains to be investigated. Implant single crowns on titanium base abutments show similar clinical performance compared to other type of abutments; however, long-term clinical data from RCTs are needed. The abutment selection should be considered already during the planning phase. Digital planning facilitates 3D visualization of the prosthetic design including abutment selection. In the posterior area, monolithic zirconia is recommended as the material of choice for multi-unit implant restorations to reduce technical complications.
Authors 17
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Academic Center for Dentistry Amsterdam
Affiliation as printed
Private Practice Arnhem The Netherlands
Section of Oral Implantology and Prosthetic Dentistry Academic Centre for Dentistry Amsterdam (ACTA) Amsterdam The Netherlands
Private Practice, Arnhem, The Netherlands
Section of Oral Implantology and Prosthetic Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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Tim Joda corresponding
Affiliation as printed
Clinic of Reconstructive Dentistry, Center of Dental Medicine University of Zurich (UZH) Zurich Switzerland
Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich (UZH), Zurich, Switzerland
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Affiliation as printed
Clinic of Reconstructive Dentistry, Center of Dental Medicine University of Zurich (UZH) Zurich Switzerland
Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich (UZH), Zurich, Switzerland
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Affiliation as printed
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine University of Geneva Geneva Switzerland
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
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Affiliation as printed
Department of Restorative Dentistry and Biomaterials Sciences Harvard School of Dental Medicine Boston Massachusetts USA
Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
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Düsseldorf University Hospital · Heinrich Heine University Düsseldorf
Affiliation as printed
Department of Prosthodontics, Medical Faculty and University Hospital Düsseldorf Heinrich‐Heine‐University Düsseldorf Germany
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Affiliation as printed
Clinic of Reconstructive Dentistry, Center of Dental Medicine University of Zurich (UZH) Zurich Switzerland
Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich (UZH), Zurich, Switzerland
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Affiliation as printed
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine University of Geneva Geneva Switzerland
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
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Affiliation as printed
Department of Restorative Dentistry and Biomaterials Sciences Harvard School of Dental Medicine Boston Massachusetts USA
Department of Restorative Dentistry and Biomaterials Sciences, Harvard School of Dental Medicine, Boston, Massachusetts, USA
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Affiliation as printed
Clinic of Reconstructive Dentistry, Center of Dental Medicine University of Zurich (UZH) Zurich Switzerland
Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich (UZH), Zurich, Switzerland
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Affiliation as printed
Department of Reconstructive Dentistry, Faculty of Odontology University of Iceland Reykjavik Iceland
Department of Reconstructive Dentistry, Faculty of Odontology, University of Iceland, Reykjavik, Iceland
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Affiliation as printed
Division of Maxillo‐Facial Surgery University of Torino Torino Italy
Private Practice Torino Italy
Division of Maxillo-Facial Surgery, University of Torino, Torino, Italy
Private Practice, Torino, Italy
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Affiliation as printed
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine University of Geneva Geneva Switzerland
Division of Fixed Prosthodontics and Biomaterials, University Clinics for Dental Medicine, University of Geneva, Geneva, Switzerland
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Affiliation as printed
Clinic of Reconstructive Dentistry, Center of Dental Medicine University of Zurich (UZH) Zurich Switzerland
Clinic of Reconstructive Dentistry, Center of Dental Medicine, University of Zurich (UZH), Zurich, Switzerland
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Tri-Service General Hospital · Mackay Memorial Hospital · National Defense Medical Center
Affiliation as printed
Department of Periodontology Mackay Memorial Hospital Taipei Taiwan
Department of Periodontology, School of Dentistry National Defense Medical Center and Tri‐Service General Hospital Taipei Taiwan
Department of Periodontology, Mackay Memorial Hospital, Taipei, Taiwan
Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
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Affiliation as printed
Department of Prosthodontics and Biomaterials RWTH Aachen University Aachen Germany
Department of Prosthodontics and Biomaterials, RWTH Aachen University, Aachen, Germany
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University of Basel · Universitäres Zentrum für Zahnmedizin Basel
Affiliation as printed
Department of Reconstructive Dentistry, University Center for Dental Medicine Basel (UZB) University of Basel Basel Switzerland
Department of Reconstructive Dentistry, University Center for Dental Medicine Basel (UZB), University of Basel, Basel, Switzerland
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