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Implant Dent. 2018 Oct;27(5):564-574. doi: 10.1097/ID.0000000000000818.

The Root Membrane Technique: A Retrospective Clinical Study With Up to 10 Years of Follow-Up.

Author information

1
Private Practice, Larissa, Greece.
2
Private Practice, Athens, Greece.
3
Lecturer, Divison of Periodontology, School of Dentistry, University of Minnesota, Minneapolis, MN.
4
Private Practice, Brooklyn, NY.
5
Private Practice, Palm Beach, FL.
6
Lecturer, Department of Medicine and Surgery, Dental School, University of Varese, Varese, Italy.

Abstract

PURPOSE:

Immediate implant placement in conjunction with intentional root retention is a recently introduced technique, but the majority of existing documentation is limited to short-term reports with low level of evidence. Hence, the aim of this study was to document the long-term clinical and radiographic results of the root membrane technique.

METHODS:

This retrospective study reports on clinical results of the root membrane technique for periodontal ligament-mediated immediate implant placement with up to 10 years of follow-up from 3 private dental practices. Anterior implants placed with immediate loading from January 2006 to December 2016 were assessed. Kaplan-Meier estimators were computed for reporting of implant success and survival.

RESULTS:

A sample of 182 patients (82 men and 100 women, age range: 18-83 years) received 250 immediate implants (230 maxilla, 20 mandible) after the root membrane concept and followed-up for a mean of 49.94 months (±32.5). Overall, 5 implant failures were recorded for a 10-year cumulative patient-level implant survival rate of 96.5%. Considering mechanical and biological complications, the 10-year cumulative implant success rate was 87.9%.

CONCLUSIONS:

Within the limits of the retrospective design, the root membrane technique showed long-term success rates comparable to those of conventional immediate implants.

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