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International Journal of Implant Dentistry

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Open Access 01-12-2021 | Tooth Extraction | Research

Bone remodeling around implants placed after socket preservation: a 10-year retrospective radiological study

Authors: Crespi Roberto, Toti Paolo, Crespi Giovanni, Covani Ugo, Brevi Bruno, Menchini-Fabris Giovanni-Battista

Published in: International Journal of Implant Dentistry | Issue 1/2021

Abstract

Background

To evaluate and compare the long-term clinical and radiological outcomes of post-extraction sockets after ridge preservation either with porcine xenograft or collagen alone. Patients underwent single-tooth extraction in the posterior mandible. Fresh extraction sockets were filled with pre-hydrated cortico-cancellous porcine bone or collagen sponge. Two or 3 months later, a ridge expansion technique with immediate implant positioning placement was performed. Primary (alveolar width changes) and secondary outcomes (adverse events and long-term maintenance of buccal plate covering the implant) were evaluated.

Results

Thirty-four women and 20 men were selected: 30 implants (group A) placed into healed post-extraction sockets grafted with porcine bone and 24 (group B) into sockets filled with a collagen sponge. There was a significant loss in width in both groups from the first and second surgery (ranging between 2.7 mm and 4.5 mm). The ridge splitting with bone expansion resulted in significant long-term increases in width for both procedures and implant sites. Non-significant differences in alveolar width were registered between the groups at 10-year follow-up even if the analysis of the implant buccal bone coverage suggested that group A had significantly worst results.

Conclusions

Porcine bone group had significantly better short-term outcomes with lower long-term maintenance of the buccal plate.

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Title: Bone remodeling around implants placed after socket preservation: a 10-year retrospective radiological study
Authors: Crespi Roberto
Toti Paolo
Crespi Giovanni
Covani Ugo
Brevi Bruno
Menchini-Fabris Giovanni-Battista
Publication date: 01-12-2021
Publisher: Springer Berlin Heidelberg
Keywords: Tooth Extraction
Tooth Extraction
Published in: International Journal of Implant Dentistry / Issue 1/2021
Electronic ISSN: 2198-4034
DOI: https://doi.org/10.1186/s40729-021-00354-7

At a glance: The STEP trials

Springer Medicine

Bone remodeling around implants placed after socket preservation: a 10-year retrospective radiological study

Abstract

Background

Results

Conclusions

At a glance: The STEP trials

Springer Medicine

Abstract

Background

Results

Conclusions

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