Conometric Connection for Implant-Supported Crowns: A Prospective Clinical Cohort Study

Saturnino Marco Lupi; Dario De Martis; Claudia Todaro; Gaetano Isola; Mario Beretta; Ruggero Rodriguez Y Baena

doi:10.3390/jcm12247647

Conometric Connection for Implant-Supported Crowns: A Prospective Clinical Cohort Study

J Clin Med. 2023 Dec 13;12(24):7647. doi: 10.3390/jcm12247647.

Authors

Saturnino Marco Lupi¹, Dario De Martis¹, Claudia Todaro¹, Gaetano Isola², Mario Beretta³, Ruggero Rodriguez Y Baena¹

Affiliations

¹ Department of Clinical Surgical, Diagnostic and Pediatric Sciences, School of Dentistry, University of Pavia, 27100 Pavia, Italy.
² Department of General Surgery and Surgical-Medical Specialties, School of Dentistry, University of Catania, 95124 Catania, Italy.
³ Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy.

Abstract

Background: Traditional screw or cemented connections in dental implants present limitations, prompting the exploration of alternative methods. This study assesses the clinical outcomes of single crowns and fixed partial prostheses supported by conometric connections after one year of follow-up.

Methods: Twenty-two patients received 70 implants, supporting 33 rehabilitations. Biological responses and prosthodontic complications were evaluated at baseline, 6 months, and 12 months.

Results: All implants exhibited successful osseointegration, with no losses or peri-implant inflammation. Marginal bone levels showed minimal changes, well below pathological thresholds. The difference in marginal bone loss (MBL) was -0.27 ± 0.79 mm between T0 and T1, and -0.51 ± 0.93 mm between T0 and T2. No abutment screw loosening or crown chipping occurred. However, coupling stability loss was observed in nine cases.

Conclusions: The conometric connection demonstrated successful integration and minimal complications after one year. This alternative shows promise, particularly in simplifying handling and improving marginal adaptation. Further research with larger sample sizes and longer follow-up is warranted for comprehensive validation.

Keywords: clinical outcome; conometric connection; dental implants; fixed dental prosthesis.

Grants and funding

The study received funding solely in the form of the provision of prosthetic materials used in the study from Luigi Ornaghi S.N.C (Brugherio, Italy), provided free of charge. No other funding was received for the conduct and publication of this study. The authors and researchers involved in this study did not receive any funds from the company.