Editorial Type:
Article Category: Research Article
 | 
Online Publication Date: 01 Aug 2010

Survival Rate of Immediately vs Delayed Loaded Implants: Analysis of the Current Literature

DDS, Dr med dent, PhD,
DDS, MS,
DDS,
DDS, and
DDS
Page Range: 315 – 324
DOI: 10.1563/AAID-JOI-D-09-00060
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Abstract

Immediate loading of oral implants has been reported as a beneficial treatment protocol in implant dentistry that increases the comfort of the patient. However, documentation in the literature is poor regarding the clinical outcome and the peri-implant bone response of immediately loaded implants compared with the conventional loading protocol placed in different bone qualities. The aim of this report was to present the role of bone quality in the survival rate of implants using conventional or immediate loading according to the literature. A literature search analysis was performed to demonstrate the survival rate of immediately loaded implants, as well as data from the histologic and histomorphometric evaluation in comparison with conventional loaded implants. This analysis showed high survival rates of immediately loaded implants along with osseointegration, with high percentages of bone-to-implant contacts based on histologic evaluation from human and animal studies of immediately and conventionally loaded implants. This study may provide histologic and clinical evidence of the immediate loading protocol for different bone qualities.

Copyright: 2010 by the American College of Veterinary Internal Medicine
Figure 1
Figure 1

(a) Occlusal preop view (left: immediately loaded [IL]; right: delayed loaded [DL]). (b) Implant placement and abutment connection for IL. (c) Provisionalization in occlusion immediately after surgery. (d) Panoramic view immediately after surgery (left: immediate loading; right: delayed loading/3 months healing). (e) Peri-implant soft tissues of healthy immediately loaded implants (5 years after loading). (f) Panoramic view 5 years after loading (left: immediately loaded; right: delayed loaded).


Figures 2–5
Figures 2–5

Figure 2. Two well-integrated immediately loaded (IL) implants in the posterior mandible (3 months healing/monkey) presenting crestal bone over the machined platform of implant systems with platform switching. Figure 3. High magnification of the bone interface of an immediately loaded implant (3 month healing/monkey) showing excellent new bone formation due to loading conditions. Figure 4. Implant integration during IL (7 months healing/human). Figure 5. Implant interface showing new lamellar bone formation during IL (7 months healing/human).


Contributor Notes

*Corresponding author, e-mail: Georgios_Romanos@urmc.rochester.edu
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