Das konometrische Konzept für implantatgetragene Einzelkronen: die definitive Befestigung ohne Zement oder Schrauben

Bei der Befestigung von implantatgetragenen Einzelzahnversorgungen konnte sich der Behandler bisher zweier erprobter, aber nicht vollkommen risikofreier Verfahren bedienen: Verschrauben oder Zementieren. Beide Fixierungsarten können jedoch zu biologischen oder technischen Komplikationen führen, und einen Einfluss auf den prothetischen Nachsorgeaufwand von Implantatpatienten haben. Mit dem konometrischen Konzept wurde kürzlich die Möglichkeit der konischen Kupplungsretention zur Fixierung von Einzelkronen vorgestellt, die diese prothetischen Komplikationen vermeiden soll. Als Vorteile gelten dabei die Vermeidung von Zementen oder der Verzicht auf zusätzliche Halteschrauben, die Ausbildung eines anatomischen Weichgewebsprofils sowie die Verwendung kostengünstiger präfabrizierter Komponenten.

Publication History

Article published online:
15 March 2021

• Literatur

• 1 Pjetursson BE, Thoma D, Jung R. et al. A systematic review of the survival and complication rates of implant-supported fixed dental prostheses (FDPs) after a mean observation period of at least 5 years. Clin Oral Implants Res 2012; 23 (Suppl. 06) 22-38
• 2 Tey VHS, Phillips R, Tan K. Five-year retrospective study on success, survival and incidence of complications of single crowns supported by dental implants. Clin Oral Implants Res 2017; 28: 620-625
• 3 Sailer I, Muhlemann S, Zwahlen M. et al. Cemented and screw-retained implant reconstructions: a systematic review of the survival and complication rates. Clin Oral Implants Res 2012; 23 (Suppl. 06) 163-201
• 4 Wittneben J G, Millen C, Bragger U. Clinical performance of screw- versus cement-retained fixed implant-supported reconstructions-a systematic review. Int J Oral Maxillofac Implants 2014; 29 (Suppl) 84-98
• 5 Millen C, Bragger U, Wittneben JG. Influence of prosthesis type and retention mechanism on complications with fixed implant-supported prostheses: a systematic review applying multivariate analyses. Int J Oral Maxillofac Implants 2015; 30: 110-124
• 6 Degidi M, Nardi D, Sighinolfi G. et al. The conometric concept for the definitive rehabilitation of a single posterior implant by using a conical indexed abutment: A technique. J Prosthet Dent 2020; 123: 576-579
• 7 Annunziata M, Oliva A, Basile MA. et al. The effects of titanium nitride-coating on the topographic and biological features of TPS implant surfaces. J Dent 2011; 39: 720-728
• 8 Scarano A, Piattelli M, Vrespa G. et al. Bacterial adhesion on titanium nitride-coated and uncoated implants: an in vivo human study. J Oral Implantol 2003; 29: 80-85
• 9 Ioannidis A, Cathomen E, Jung RE. et al. Discoloration of the mucosa caused by different restorative materials – a spectrophotometric in vitro study. Clin Oral Implants Res 2016; 28: 1133-1138
• 10 Sala L, Bascones-Martinez A, Carrillo-de-Albornoz A. Impact of abutment material on peri-implant soft tissue color. An in vitro study. Clin Oral Investig 2017; 21: 2221-2233
• 11 Degidi M, Nardi D, Piattelli A. The Conometric Concept: Coupling Connection for Immediately Loaded Titanium-Reinforced Provisional Fixed Partial Dentures – A Case Series. Int J Periodontics Restorative Dent 2016; 36: 347-354
• 12 Bressan E, Lops D. Conometric retention for complete fixed prosthesis supported by four implants: 2-years prospective study. Clin Oral Implants Res 2014; 25: 546-552
• 13 Degidi M, Nardi D, Sighinolfi G. et al. The Conometric Concept: Definitive Fixed Lithium Disilicate Restorations Supported by Conical Abutments. J Prosthodont 2018; 27: 605-610
• 14 Degidi M, Nardi D, Sighinolfi G. et al. The Conometric Concept: A Two-Year Follow-Up of Fixed Partial CEREC Restorations Supported By Cone-In-Cone Abutments. J Prosthodont 2019; 28: e780-e787
• 15 Bressan E, Venezze AC, Magaz VR. et al. Fixed Conometric Retention with CAD/CAM Conic Coupling Abutments and Prefabricated Syncone Caps: A Case Series. Int J Periodontics Restorative Dent 2018; 38: 277-280
• 16 Degidi M, Nardi D, Gianluca S. et al. The Conometric Concept: A 5-Year Follow-up of Fixed Partial Monolithic Zirconia Restorations Supported by Cone-in-Cone Abutments. Int J Periodontics Restorative Dent 2018; 38: 363-371
• 17 Laverty DP, Fairbrother K, Addison O. The Current Evidence on Retaining or Prosthodontically Replacing Retained Deciduous Teeth in the Adult Hypodontia Patient: A Systematic Review. Eur J Prosthodont Restor Dent 2018; 26: 2-15
• 18 Bressan E, Sbricoli L, Guazzo R. et al. Five-year prospective study on conometric retention for complete fixed prostheses. Int J Oral Implantol (Berl) 2019; 12: 105-113
• 19 Canullo L, Penarrocha M, Monje A. et al. Association Between Clinical and Microbiologic Cluster Profiles and Peri-implantitis. Int J Oral Maxillofac Implants 2017; 32: 1054-1064
• 20 Gehrke P, Hartjen P, Smeets R. et al. Marginal Adaptation and Microbial Leakage at Conometric Prosthetic Connections for Implant-Supported Single Crowns: An In vitro Investigation. Int J Mol Sci 2021; 22: 881