1-Year Evaluation of OT Bridge Abutments for Immediately Loaded Maxillary Fixed Restorations: A Multicenter Study

Rosario Acampora; Marco Montanari; Roberto Scrascia; Emiliano Ferrari; Massimo Pasi; Gabriele Cervino; Silvio Mario Meloni; Aurea Immacolata Lumbau; Erta Xhanari; Alba Koshovari; Marco Tallarico

doi:10.1055/s-0040-1716632

European Journal of Dentistry, Table of Contents

CC BY-NC-ND 4.0 · Eur J Dent 2021; 15(02): 290-294
DOI: 10.1055/s-0040-1716632

Original Article

1-Year Evaluation of OT Bridge Abutments for Immediately Loaded Maxillary Fixed Restorations: A Multicenter Study

Rosario Acampora

¹Private Practice, Italy

,

Marco Montanari

¹Private Practice, Italy

,

Roberto Scrascia

¹Private Practice, Italy

,

Emiliano Ferrari

¹Private Practice, Italy

,

Massimo Pasi

²Department of Dental, CLMOPD Ateneo Vita-Salute San Raffaele, Milan, Italy

,

Gabriele Cervino

³Department of Biomedical and Dental Sciences, Morphological and Functional Images, School of Dentistry, University of Messina, Policlinico G. Martino, Via Consolare Valeria, Messina, Italy

,

Silvio Mario Meloni

⁴Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy

,

Aurea Immacolata Lumbau

⁴Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy

,

Erta Xhanari

⁵Departament of Implantology and Prosthetic Aspects, Master of Science in Dentistry Program, Aldent University, Tirana, Albania

,

Alba Koshovari

⁵Departament of Implantology and Prosthetic Aspects, Master of Science in Dentistry Program, Aldent University, Tirana, Albania

,

Marco Tallarico

⁶School of Dentistry, University of Sassari, Sassari, Italy

› Author Affiliations

Abstract

Objective Preliminary data on survival and success rates of immediately loaded, maxillary, screw-retained, implant-supported, fixed restorations delivered on narrow and low-profile OT Equator abutments (OT Bridge, Rhein’83) were evaluated.

Materials and Methods This retrospective study evaluated data collected from patients rehabilitated with OT Bridge prosthetic concept between November 2017 and February 2019 in six different centers. Outcome measures were implant and prosthetic survival rates, biological and technical complications, marginal bone loss (MBL), oral health impact profile (OHIP), bleeding on probing, and plaque index.

Results A total of 76 implants were inserted in 14 patients. Patients were followed for a mean period of 15.8 months (range = 12–24). All the patients receive OT Equator (Rhein'83) as intermediate abutments. One year after loading, one implant failed (1.3%). None of the prosthesis failed. One prosthetic complication was experienced in one patient. Three out of 76 implants were connected to the prosthetic framework using only the Seeger system, without screw. Difference in OHIP values was statistically significant (71.9 ± 8.5; p = 0.000). One year after loading, MBL was 0.21 ± 0.11 mm and p-value was 0.000. One year after loading, 8.7% of the examined implant sites present positive bleeding on probing, while 6.4% of the implant sites presented plaque.

Conclusion The OT Equator abutments (Rhein'83) showed successful results when used to support maxillary fixed dental prosthesis delivered on four to six implants. High implant and prosthetic survival rates, very low complications, high patient satisfaction, and good biological parameters, including only 0.2 mm of bone remodeling were experienced one year after function. Further studies are needed to confirm these preliminary results.

Keywords

OT Bridge - dental implants - immediate loading - complete edentulous patients - maxilla

Full Text

References

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