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Crestal bone loss and implant failure of prefabricated versus customized abutments: a 10-year retrospective radiological study

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Abstract

Objectives

There is no information today about the impact of abutment type on the crestal bone stability. This retrospective study was aimed to evaluate the crestal bone levels (CBL) and failures of implants with prefabricated and customized abutments after the long term.

Materials and methods

The mesial and distal CBL around dental implants with prefabricated and custom abutments were recorded. Measures were completed at 5- and 10-year endpoints.

Results

Sixty-three patients with 249 implants were included. One hundred twenty-seven implants (51%) were restored with prefabricated and 122 implants (49%) with customized abutments. All the patients received fixed restorations. The results showed that the CBL was higher in patients with custom abutments than the CBL of patients with prefabricated abutments. The mean bone loss around implants with prefabricated abutments was 0.29 mm mesial/0.45 mm distal after 10 years. Meanwhile, the mean bone loss at implants with custom abutments was 1.19 mm mesial/1.27 mm distal (p < 0.05) after 10 years. None of the implants with prefabricated abutments failed up to 10-year follow-up, whereas 4.1% of implants with customized abutments failed.

Conclusion

Implants with prefabricated abutments present less crestal bone loss compared to customized abutments.

Clinical relevance.

The selection of abutment type is associated with the crestal bone stability or marginal bone loss.

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Authors and Affiliations

  1. Department of Oral Surgery and Implant Dentistry, School of Dentistry, Johann Wolfgang Goethe University, Frankfurt, Germany

    Georgios E. Romanos, Seymur Gurbanov, Pablo Hess, Georg-Hubertus Nentwig & Frank Schwarz

  2. Department of Periodontology, School of Dental Medicine, Stony Brook University, Stony Brook, NY, USA

    Georgios E. Romanos

  3. Department of Oral and Maxillofacial Surgery, School of Medicine, Johann Wolfgang Goethe University, Frankfurt, Germany

    Robert Sader

Authors
  1. Georgios E. Romanos
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  2. Seymur Gurbanov
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  3. Pablo Hess
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  4. Georg-Hubertus Nentwig
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  5. Frank Schwarz
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  6. Robert Sader
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Corresponding author

Correspondence to Georgios E. Romanos.

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Ethics approval

The study was approved by the Ethics Committee of the Medical Center of the Johann Wolfgang Goethe University Frankfurt with the number 509/17.

Consent to participate

This study was retrospective and has not required an informed consent for the patients.

Conflict of interest

The authors declare no competing interests.

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Romanos, G.E., Gurbanov, S., Hess, P. et al. Crestal bone loss and implant failure of prefabricated versus customized abutments: a 10-year retrospective radiological study. Clin Oral Invest 26, 2879–2886 (2022). https://doi.org/10.1007/s00784-021-04269-w

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  • DOI: https://doi.org/10.1007/s00784-021-04269-w

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