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Long-term follow-up of turned single implants placed in periodontally healthy patients after 16–22 years: radiographic and peri-implant outcome

Melissa Dierens UGent, Stefan Vandeweghe UGent, Jeno Kisch, Krister Nilner and Hugo De Bruyn UGent (2012) CLINICAL ORAL IMPLANTS RESEARCH. 23(2). p.197-204
abstract
Objectives: Retrospectively evaluate the survival, radiographic and peri-implant outcome of single turned Bra degrees nemark (TM) implants after at least 16 years. Materials and methods: From 134 patients (C-group), 101 could be contacted concerning implant survival and 50 (59 remaining implants) were clinically examined (I-group). Marginal bone level was radiographically measured from the implant-abutment junction at baseline (within 6 months after abutment connection) and 1-4, 5-8 and 16-22 years post-operatively. Probing depth, gingival and plaque index weremeasured. Marginal bone-level changes were analyzed using Friedman's andWilcoxon's signed ranks tests. Spearman's correlations between radiographic and clinical parameters were calculated. Results: In the C-group, 13 out of 166 implants in 11 out of 134 patients failed (CSR 91.5%). In the I-group (28 males-22 females; mean age 23.9 years at baseline; range 14-57), the mean follow-up was 18.4 years (range 16-22). Themean bone levelwas 1.7 +/- 0.88mm (range = 0.8 to 5) after 16-22 years. Changes in the meanmarginal bone levelwere statistically significant between baseline and the second measuring interval (1-4 years). Thereafter, no significant differences could be demonstrated. The mean interproximal probing depth, gingival and plaque indices were 3.9 +/- 1.27mm, 1.2 +/- 0.81 and 0.2 +/- 0.48, respectively. Probing depth was moderately correlated with gingival inflammation (r = 0.6; P<0.001) but not with bone level (P>0.05). 81.4% of the implants had a bone level <= 2nd thread and 91.5% had a probing depth <= 5mm. 76.3% had both bone level <= 2nd thread and probing depth <= 5mm. Conclusions and clinical implications: The single turned Branemark (TM) implant is a predictable solution with high clinical survival and success rates. In general, a steady-state bone level can be expected over decades, with minimal signs of peri-implant disease. A minority (5%), however, presents with progressive bone loss.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
MAXILLA, REHABILITATION, EDENTULOUS PATIENTS, single tooth, peri-implantitis, marginal bone loss, dental implants, implant success, implant survival, RESTORATIONS, FIXTURES, TORONTO, JAW
journal title
CLINICAL ORAL IMPLANTS RESEARCH
Clin. Oral Implants Res.
volume
23
issue
2
pages
197 - 204
Web of Science type
Article
Web of Science id
000299098700009
JCR category
DENTISTRY, ORAL SURGERY & MEDICINE
JCR impact factor
3.433 (2012)
JCR rank
6/81 (2012)
JCR quartile
1 (2012)
ISSN
0905-7161
DOI
10.1111/j.1600-0501.2011.02212.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1899892
handle
http://hdl.handle.net/1854/LU-1899892
date created
2011-09-12 09:01:37
date last changed
2012-09-20 16:18:56
@article{1899892,
  abstract     = {Objectives: Retrospectively evaluate the survival, radiographic and peri-implant outcome of single turned Bra degrees nemark (TM) implants after at least 16 years. 
Materials and methods: From 134 patients (C-group), 101 could be contacted concerning implant survival and 50 (59 remaining implants) were clinically examined (I-group). Marginal bone level was radiographically measured from the implant-abutment junction at baseline (within 6 months after abutment connection) and 1-4, 5-8 and 16-22 years post-operatively. Probing depth, gingival and plaque index weremeasured. Marginal bone-level changes were analyzed using Friedman's andWilcoxon's signed ranks tests. Spearman's correlations between radiographic and clinical parameters were calculated. 
Results: In the C-group, 13 out of 166 implants in 11 out of 134 patients failed (CSR 91.5\%). In the I-group (28 males-22 females; mean age 23.9 years at baseline; range 14-57), the mean follow-up was 18.4 years (range 16-22). Themean bone levelwas 1.7 +/- 0.88mm (range = 0.8 to 5) after 16-22 years. Changes in the meanmarginal bone levelwere statistically significant between baseline and the second measuring interval (1-4 years). Thereafter, no significant differences could be demonstrated. The mean interproximal probing depth, gingival and plaque indices were 3.9 +/- 1.27mm, 1.2 +/- 0.81 and 0.2 +/- 0.48, respectively. Probing depth was moderately correlated with gingival inflammation (r = 0.6; P{\textlangle}0.001) but not with bone level (P{\textrangle}0.05). 81.4\% of the implants had a bone level {\textlangle}= 2nd thread and 91.5\% had a probing depth {\textlangle}= 5mm. 76.3\% had both bone level {\textlangle}= 2nd thread and probing depth {\textlangle}= 5mm. 
Conclusions and clinical implications: The single turned Branemark (TM) implant is a predictable solution with high clinical survival and success rates. In general, a steady-state bone level can be expected over decades, with minimal signs of peri-implant disease. A minority (5\%), however, presents with progressive bone loss.},
  author       = {Dierens, Melissa and Vandeweghe, Stefan and Kisch, Jeno and Nilner, Krister and De Bruyn, Hugo},
  issn         = {0905-7161},
  journal      = {CLINICAL ORAL IMPLANTS RESEARCH},
  keyword      = {MAXILLA,REHABILITATION,EDENTULOUS PATIENTS,single tooth,peri-implantitis,marginal bone loss,dental implants,implant success,implant survival,RESTORATIONS,FIXTURES,TORONTO,JAW},
  language     = {eng},
  number       = {2},
  pages        = {197--204},
  title        = {Long-term follow-up of turned single implants placed in periodontally healthy patients after 16--22 years: radiographic and peri-implant outcome},
  url          = {http://dx.doi.org/10.1111/j.1600-0501.2011.02212.x},
  volume       = {23},
  year         = {2012},
}

Chicago
Dierens, Melissa, Stefan Vandeweghe, Jeno Kisch, Krister Nilner, and Hugo De Bruyn. 2012. “Long-term Follow-up of Turned Single Implants Placed in Periodontally Healthy Patients After 16–22 Years: Radiographic and Peri-implant Outcome.” Clinical Oral Implants Research 23 (2): 197–204.
APA
Dierens, M., Vandeweghe, S., Kisch, J., Nilner, K., & De Bruyn, H. (2012). Long-term follow-up of turned single implants placed in periodontally healthy patients after 16–22 years: radiographic and peri-implant outcome. CLINICAL ORAL IMPLANTS RESEARCH, 23(2), 197–204.
Vancouver
1.
Dierens M, Vandeweghe S, Kisch J, Nilner K, De Bruyn H. Long-term follow-up of turned single implants placed in periodontally healthy patients after 16–22 years: radiographic and peri-implant outcome. CLINICAL ORAL IMPLANTS RESEARCH. 2012;23(2):197–204.
MLA
Dierens, Melissa, Stefan Vandeweghe, Jeno Kisch, et al. “Long-term Follow-up of Turned Single Implants Placed in Periodontally Healthy Patients After 16–22 Years: Radiographic and Peri-implant Outcome.” CLINICAL ORAL IMPLANTS RESEARCH 23.2 (2012): 197–204. Print.