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A retrospective analysis of early and immediately loaded osseotite implants in cross-arch rehabilitations in edentulous maxillas and mandibles up to 7 years

HILDE BROWAEYS UGent, Joel Defrancq, Melissa Dierens UGent, Seyed Reza Miremadi UGent, Stefan Vandeweghe UGent, Tommie Van de Velde UGent and Hugo De Bruyn UGent (2013) CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH. 15(3). p.380-389
abstract
Background: Immediate loading of full-arch restorations yields good results in selected cases but long-term follow-up and the outcome in compromised bone is scarcely evaluated. Purpose: To evaluate immediately loaded Osseotite implants installed in healed or grafted bone, with regards to implant survival and peri-implant bone loss up to 7 years in function. Materials and Methods: Information was retrospectively retrieved from 83 patient’s records with 749 osseotite implants (Biomet 3i, Palm Beach, Fl, USA) supporting immediately loaded semi-permanent full-arch acrylic restorations. 568 (75.8%) implants were placed in healed bone and 181 (24.2%) in augmented bone, regenerated with sinus lifting and/or onlay/inlay grafts with/without biomaterials and membranes. Implant survival and success based on radiological peri-implant bone loss were registered. Wilcoxon rank sum tests evaluated peri-implant bone loss in compromised versus healed bone or between jaws or time intervals with p<0.05 as statistically significant. Results: 16/749 implants failed (2.1%), 11/343 in maxilla (3.2%) and 5/406 (1.2%) in mandible. After 7 years the cumulative failure rate was 9%. Mean peri-implant bone loss increased to 1.2 mm (SD 1.0) during the first 2 years but remained unchanged thereafter. Around implants in grafted bone on average 0.3 mm more bone loss was found. Discussion and conclusion: The Osseotite implants offer a predictable long-term outcome in terms of implant survival and stable peri-implant bone under immediate loading even in grafted bone. On the other hand, the high incidence of technical repair due to fractures of the semi-permanent provisionals requires attention because it may be negative from a cost-benefit perspective. Implants in grafted bone show a tendency to a more pronounced initial bone remodelling without clinical consequence in the long term.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
osseotite surface, immediate loading, one-stage surgery, grafting, posterior hipgraft, sinuslift, bone remodeling., prosthetic complications, implant survival, Dental implant
journal title
CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH
Clin. Implant Dent. Relat. Res.
volume
15
issue
3
pages
380 - 389
JCR category
DENTISTRY, ORAL SURGERY & MEDICINE
JCR impact factor
2.796 (2013)
JCR rank
9/83 (2013)
JCR quartile
1 (2013)
ISSN
1523-0899
DOI
10.1111/j.1708-8208.2011.00367.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1167182
handle
http://hdl.handle.net/1854/LU-1167182
date created
2011-02-23 14:59:24
date last changed
2013-07-09 11:19:02
@article{1167182,
  abstract     = {Background: Immediate loading of full-arch restorations yields good results in selected cases but long-term follow-up and the outcome in compromised bone is scarcely evaluated.
Purpose: To evaluate immediately loaded Osseotite implants installed in healed or grafted bone, with regards to implant survival and peri-implant bone loss up to 7 years in function.
Materials and Methods: Information was retrospectively retrieved from 83 patient{\textquoteright}s records with 749 osseotite implants (Biomet 3i, Palm Beach, Fl, USA) supporting immediately loaded semi-permanent full-arch acrylic restorations. 568 (75.8\%) implants were placed in healed bone and 181 (24.2\%) in augmented bone, regenerated with sinus lifting and/or onlay/inlay grafts with/without biomaterials and  membranes. Implant survival and  success based on radiological peri-implant bone loss were registered. Wilcoxon rank sum tests evaluated peri-implant bone loss in compromised versus healed bone or between jaws or time intervals with p{\textlangle}0.05 as statistically significant.
Results: 16/749 implants failed (2.1\%), 11/343 in maxilla (3.2\%) and 5/406 (1.2\%) in mandible. After 7 years the cumulative failure rate was 9\%. Mean peri-implant bone loss increased to 1.2 mm (SD 1.0) during the first 2 years but remained unchanged thereafter. Around implants in grafted bone on average 0.3 mm more bone loss was found.
Discussion and conclusion: The Osseotite implants offer a predictable long-term outcome in terms of implant survival and stable peri-implant bone under immediate loading even in grafted bone. On the other hand, the high incidence of technical repair due to fractures of the semi-permanent provisionals requires attention because it may be negative from a cost-benefit perspective. Implants in grafted bone show a tendency to a more pronounced initial bone remodelling without clinical consequence in the long term.},
  author       = {BROWAEYS, HILDE and Defrancq, Joel and Dierens, Melissa and Miremadi, Seyed Reza and Vandeweghe, Stefan and Van de Velde, Tommie and De Bruyn, Hugo},
  issn         = {1523-0899},
  journal      = {CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH},
  keyword      = {osseotite surface,immediate loading,one-stage surgery,grafting,posterior hipgraft,sinuslift,bone remodeling.,prosthetic complications,implant survival,Dental implant},
  language     = {eng},
  number       = {3},
  pages        = {380--389},
  title        = {A retrospective analysis of early and immediately loaded osseotite implants in cross-arch rehabilitations in edentulous maxillas and mandibles up to 7 years},
  url          = {http://dx.doi.org/10.1111/j.1708-8208.2011.00367.x},
  volume       = {15},
  year         = {2013},
}

Chicago
BROWAEYS, HILDE, Joel Defrancq, Melissa Dierens, Seyed Reza Miremadi, Stefan Vandeweghe, Tommie Van de Velde, and Hugo De Bruyn. 2013. “A Retrospective Analysis of Early and Immediately Loaded Osseotite Implants in Cross-arch Rehabilitations in Edentulous Maxillas and Mandibles up to 7 Years.” Clinical Implant Dentistry and Related Research 15 (3): 380–389.
APA
BROWAEYS, H., Defrancq, J., Dierens, M., Miremadi, S. R., Vandeweghe, S., Van de Velde, T., & De Bruyn, H. (2013). A retrospective analysis of early and immediately loaded osseotite implants in cross-arch rehabilitations in edentulous maxillas and mandibles up to 7 years. CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH, 15(3), 380–389.
Vancouver
1.
BROWAEYS H, Defrancq J, Dierens M, Miremadi SR, Vandeweghe S, Van de Velde T, et al. A retrospective analysis of early and immediately loaded osseotite implants in cross-arch rehabilitations in edentulous maxillas and mandibles up to 7 years. CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH. 2013;15(3):380–9.
MLA
BROWAEYS, HILDE, Joel Defrancq, Melissa Dierens, et al. “A Retrospective Analysis of Early and Immediately Loaded Osseotite Implants in Cross-arch Rehabilitations in Edentulous Maxillas and Mandibles up to 7 Years.” CLINICAL IMPLANT DENTISTRY AND RELATED RESEARCH 15.3 (2013): 380–389. Print.