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You are here: Αρχική ΙΣΤΟΛΟΓΙΟ Παγκόσμιο Συνέδριο IADR
20 Ιούλιος 2018

Παγκόσμιο Συνέδριο IADR

Πέμπτη, 07 Μαΐου 2015 00:00 Written by 
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PDL-Mediated Ridge Preservation for Immediate Implant Placement and Loading

 

Wednesday, June 25, 2014: 1:30 p.m. - 3 p.m.

Location: Meeting Room 2.61 (CTICC Convention Center)

Presentation Type: Oral Session

G.A. KOTSAKIS1, K. SIORMPAS2, M. MITSIAS3, E. KONTSIOTOU-SIORMPA2, G. ROMANOS4, and J. HINRICHS1

Objective: Loss of blood supply derived from the periodontal ligament (PDL) has been identified as a major etiologic factor for ridge resorption. Animal studies and case reports provide proof-of-principle data on the feasibility of immediate implant placement in proximity to a retained root fragment for the strategic preservation of the natural tooth apparatus. This novel concept relies on the preservation of PDL, buccal bone and soft tissue esthetics via selective preservation of the buccal portion of the root. However, long-term efficacy of this technique in humans has not been previously reported. The objective of this case series was to longitudinally assess implant success using this immediate placement technique in maxillary anterior sites.

Method: Retrospective analysis was performed on data from 25 adult patients treated with this technique (2007-2009) that were annually evaluated thereafter. Clinical and radiographic assessment included evaluation of the retained root-fragment for displacement/fenestration and assessment of periapical radiographs and indicated CBCT scans for proximal bone levels, pathosis and decay. Kaplan-Meier survival function was used to estimate the 5-year implant success probability.

Result: Mean follow-up was 44.9±5.7-months with each patient providing one implant site. All implants were immediately, non-functionally loaded and were clinically stable at subsequent evaluations. Final loading was performed with fixed prostheses and all restorations functionally survived throughout the follow-ups. Minor crestal bone loss was noted at the end of the follow-up (0.19±0.08 and 0.22±0.06 mm at mesial and distal aspects, respectively). The only adverse event consisted of apical resorption of one root fragment that was eventually substituted with bone yet considered ‘’failure’’ for statistical purposes. Chance of an implant placed with this technique being complication-free at 5-years was estimated at 96%.

Conclusion: Preservation of the buccal aspect of the root and PDL can lead to predictable and sustainable clinical stability of immediately placed and loaded implants.

Student Presenter Keywords: Esthetics, Implantology, Implants, Periodontal ligament and Periodontium-gingiva

Presenting author's disclosure statement: I have a significant financial interest/arrangement or affiliation with an organization/institution whose products or services are being discussed in this session. I understand that I must disclose this information to the participants who attend my presentation. No I have read the IADR policy on licensing.

Signed on 01/13/2014 by G.A. KOTSAKIS


 

1University of Minnesota, Minneapolis, MN, 2Private Practice, Larisa, Greece, 3Private Practice, Athens, Greece, 4Stony Brook University, Stony Brook, NY 

Read 279 times Last modified on Σάββατο, 09 Μαΐου 2015 06:40
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