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Immediate provisionalization in the esthetic zone: 1-year interim results from a prospective single-cohort multicenter study evaluating 3.0-mm-diameter tapered implants

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Abstract

Objectives

The aim of this interim analysis of a 5-year prospective multicenter study is to evaluate clinical and radiological performance of immediately provisionalized 3.0-mm-diameter tapered implants.

Materials and methods

Patients needing implant rehabilitation of maxillary lateral incisors or mandibular lateral and central incisors were treated with 3.0-mm-diameter implants placed in extraction or healed sites and immediately provisionalized. Clinical and radiographic examinations were performed at implant insertion, 6 months thereafter, and are ongoing. Marginal bone levels and changes, complications, the papilla, plaque, and bleeding indices, and the pink esthetic score (PES) were evaluated at each follow-up visit.

Results

Of 112 enrolled patients, 77 patients (91 implants) met the inclusion criteria. Seventy-one patients with 82 implants completed the 1-year follow-up. Three implants failed yielding a CSR of 96.7%. All failures occurred within the first 3 months after implant insertion. Marginal bone level changes from insertion to 6 months was − 0.57 ± 1.30 mm (n = 75) and from insertion to 12 months − 0.25 ± 1.38 mm (n = 72). Fifteen non-serious complications were recorded. Papilla index score and PES improved at the 1-year follow-up. Plaque formation and bleeding-on-probing showed no statistically significant differences between the 6-month and the 1-year visit.

Conclusions

This 1-year analysis demonstrated high survival, stable bone levels, and healthy soft tissue with 3.0-mm-diameter implants.

Clinical implications

Narrow diameter implants are a safe and predictable treatment option in patients with limited bone volume and/or limited interdental space and eligible for immediate loading protocols.

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Acknowledgements

Professional writing assistance was provided by Katherine H. Sippel, PhD, at BioScience Writers, LLC.

Funding

This study was supported by Nobel Biocare Services AG, Kloten, Switzerland (grant T-176).

Author information

Authors and Affiliations

  1. Private Practice, Kolinski and Crosby Ltd, St Charles, IL, USA

    Martin Kolinski

  2. Goethe University, Frankfurt am Main, Germany

    Pablo Hess & Paul Weigl

  3. Imperio Group, North Vancouver, Canada

    Sonia Leziy

  4. Brånemark Clinic, Göteborg, Sweden

    Bertil Friberg

  5. IRCCS Cà Granda Foundation, Maggiore Policlinico Hospital, University of Milan, Milan, Italy

    Gionata Bellucci & Davide Trisciuoglio

  6. University Medical Center Mainz, Mainz, Germany

    Wilfried Wagner & Maximilian Moergel

  7. University of Rome Tor Vergata, Rome, Italy

    Alessandro Pozzi

  8. University Clinic Kiel, Kiel, Germany

    Jörg Wiltfang & Eleonore Behrens

  9. School of Dentistry, Medical University of Vienna, Vienna, Austria

    Werner Zechner & Christoph Vasak

Authors
  1. Martin Kolinski
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  2. Pablo Hess
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  14. Paul Weigl
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Corresponding author

Correspondence to Martin Kolinski.

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Conflict of interest

Drs. MK and WZ received grants from Nobel Biocare while the study was conducted. Dr. WZ received non-financial support from Straumann as well as financial support from Nobel Biocare and ZimmerBiomet unrelated to this study. Drs. PH, SL, BF, GB, DT, WW, MM, AP, JW, EB, CV, and PW have no conflicts of interest to declare.

Ethical approval

All procedures were conducted in accordance with the ethical standards of the institutional and/or national research committees and with the 1964 Helsinki declaration and its later amendments.

Informed consent

All patients provided written informed consent prior to inclusion in the study.

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Kolinski, M., Hess, P., Leziy, S. et al. Immediate provisionalization in the esthetic zone: 1-year interim results from a prospective single-cohort multicenter study evaluating 3.0-mm-diameter tapered implants. Clin Oral Invest 22, 2299–2308 (2018). https://doi.org/10.1007/s00784-017-2329-2

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  • DOI: https://doi.org/10.1007/s00784-017-2329-2

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