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Article

The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study

by
Simone Marconcini
1,*,
Enrica Giammarinaro
2,
Ugo Covani
1,
Eitan Mijiritsky
3,
Xavier Vela
4 and
Xavier Rodríguez
5
1
Department of Surgical, Medical, Molecular and Critical Area Pathology, University of Pisa, 56124 Pisa, Italy
2
Tuscan Dental Institute, Versilia General Hospital, 55041 Lido di Camaiore, Italy
3
Department of Otolaryngology Head and Neck Surgery and Maxillofacial Surgery, Tel-Aviv Sourasky Medical Center, Sackler School of Medicine, 61503 Tel Aviv, Israel
4
Department of Maxillofacial Surgery and Implantology, International University of Catalunya, 08001 Barcelona, Spain
5
Department of Oral Implantology, European University of Madrid, 28001 Madrid, Spain
*
Author to whom correspondence should be addressed.
J. Clin. Med. 2019, 8(9), 1305; https://doi.org/10.3390/jcm8091305
Submission received: 8 July 2019 / Revised: 17 August 2019 / Accepted: 20 August 2019 / Published: 24 August 2019
(This article belongs to the Special Issue Osseointegrated Oral implants: Mechanisms of Implant Anchorage, Threats and Long-Term Survival Rates)
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Abstract

Background: Early peri-implant bone loss has been associated to long-term implant-prosthetic failure. Different technical, surgical, and prosthetic techniques have been introduced to enhance the clinical outcome of dental implants in terms of crestal bone preservation. The aim of the present cohort study was to observe the mean marginal bone level around two-part implants with gingivally tapered abutments one year after loading. Methods: Mean marginal bone levels and change were computed following radiological calibration and linear measurement on standardized radiographs. Results: Twenty patients who met the inclusion criterion of having at least one implant with the tapered prosthetic connection were included in the study. The cumulative implant success rate was 100%, the average bone loss was −0.18 ± 0.72 mm, with the final bone level sitting above the implant platform most of the time (+1.16 ± 0.91 mm). Conclusion: The results of this cohort study suggested that implants with tapered abutments perform successfully one year after loading and that they are associated with excellent marginal bone preservation, thus suggesting that implant-connection macro-geometry might have a crucial role in dictating peri-implant bone levels.
Keywords: bone loss; convergence; clinical study bone loss; convergence; clinical study

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MDPI and ACS Style

Marconcini, S.; Giammarinaro, E.; Covani, U.; Mijiritsky, E.; Vela, X.; Rodríguez, X. The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study. J. Clin. Med. 2019, 8, 1305. https://doi.org/10.3390/jcm8091305

AMA Style

Marconcini S, Giammarinaro E, Covani U, Mijiritsky E, Vela X, Rodríguez X. The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study. Journal of Clinical Medicine. 2019; 8(9):1305. https://doi.org/10.3390/jcm8091305

Chicago/Turabian Style

Marconcini, Simone, Enrica Giammarinaro, Ugo Covani, Eitan Mijiritsky, Xavier Vela, and Xavier Rodríguez. 2019. "The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study" Journal of Clinical Medicine 8, no. 9: 1305. https://doi.org/10.3390/jcm8091305

APA Style

Marconcini, S., Giammarinaro, E., Covani, U., Mijiritsky, E., Vela, X., & Rodríguez, X. (2019). The Effect of Tapered Abutments on Marginal Bone Level: A Retrospective Cohort Study. Journal of Clinical Medicine, 8(9), 1305. https://doi.org/10.3390/jcm8091305

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