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Predictors of inter-proximal and midfacial recession following single implant treatment in the anterior maxilla: a multivariate analysis

Jan Cosyn UGent, Mehran Moradi Sabzevar and Hugo De Bruyn UGent (2012) JOURNAL OF CLINICAL PERIODONTOLOGY. 39(9). p.895-903
abstract
Purpose: A number of factors have been associated with soft tissue recession following single implant treatment. However, given the cross-sectional design of most of these studies and crude associations based on univariate analyses, such factors may only be considered risk indicators. The objective of the present retrospective cohort study using multivariate analyses was to identify predictors of recession. Material and methods: Patients who had been treated by two periodontists and two prosthodontists in 2006 and 2007 for a single implant in the anterior maxilla were re-examined in 2009 and their records were scrutinized. Subjects treated via flap surgery with and without ridge recontouring were considered. Outcome variables were interproximal and midfacial recession. Explanatory variables included demographic data, the surgical approach and a number of local factors that were evaluated on radiographs taken preoperatively or at permanent crown installation (baseline). Results: Data pertaining to 97/115 (60 females, 37 males; mean age 51, SD 13, range 23 - 80) patients were available for evaluation. Significant bone loss was observed between baseline and re-examination at the implant surface (0.2 – 0.3 mm, p < 0.001) and tooth surface (0.3 – 0.5 mm, p < 0.001). Surgery with ridge recontouring demonstrated 0.2 mm additional bone loss at the distal tooth surface when compared to surgery without ridge recontouring (p = 0.034). This could be explained by a disparity in possible papilla opening procedures (3 versus 1 or 2). As a result, regression analyses identified surgery with ridge recontouring as a predictor of interproximal recession (OR ≥ 3.4). Preoperative bone level at the tooth surface was another predictor of interproximal recession (OR ≥ 2.1). Recession of the distal papilla was also affected by a missing contact point (OR: 221.9), the implant to tooth distance (OR = 0.3) and the distance of the bone peak to the contact point (OR = 2.9). Midfacial recession was only associated with a buccal shoulder position (OR = 17.2). Conclusions: In order to optimize soft tissue levels around single implants, clinicians should limit papilla opening procedures and pay utmost attention to a correct implant and contact point positioning.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
BRANEMARK IMPLANTS, PATIENT SATISFACTION, CASE SERIES, IMMEDIATE, ADJACENT, AESTHETICS, RADIOGRAPHIC EVALUATION, TOOTH IMPLANTS, PRIVATE DENTAL PRACTICES, SOFT-TISSUE RESPONSE, single tooth, risk, recession, dental implant
journal title
JOURNAL OF CLINICAL PERIODONTOLOGY
J. Clin. Periodontol.
volume
39
issue
9
pages
895 - 903
Web of Science type
Article
Web of Science id
000307170000012
JCR category
DENTISTRY, ORAL SURGERY & MEDICINE
JCR impact factor
3.688 (2012)
JCR rank
5/81 (2012)
JCR quartile
1 (2012)
ISSN
0303-6979
DOI
10.1111/j.1600-051X.2012.01921.x
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
2111564
handle
http://hdl.handle.net/1854/LU-2111564
date created
2012-05-23 12:55:57
date last changed
2012-09-21 09:47:27
@article{2111564,
  abstract     = {Purpose: A number of factors have been associated with soft tissue recession following single implant treatment. However, given the cross-sectional design of most of these studies and crude associations based on univariate analyses, such factors may only be considered risk indicators. The objective of the present retrospective cohort study using multivariate analyses was to identify predictors of recession.
Material and methods: Patients who had been treated by two periodontists and two prosthodontists in 2006 and 2007 for a single implant in the anterior maxilla were re-examined in 2009 and their records were scrutinized. Subjects treated via flap surgery with and without ridge recontouring were considered. Outcome variables were interproximal and midfacial recession. Explanatory variables included demographic data, the surgical approach and a number of local factors that were evaluated on radiographs taken preoperatively or at permanent crown installation (baseline).
Results: Data pertaining to 97/115 (60 females, 37 males; mean age 51, SD 13, range 23 - 80) patients were available for evaluation. Significant bone loss was observed between baseline and re-examination at the implant surface (0.2 -- 0.3 mm,  p {\textlangle} 0.001) and tooth surface (0.3 -- 0.5 mm,  p {\textlangle} 0.001). Surgery with ridge recontouring demonstrated 0.2 mm additional bone loss at the distal tooth surface when compared to surgery without ridge recontouring (p = 0.034). This could be explained by a disparity in possible papilla opening procedures (3 versus 1 or 2). As a result, regression analyses identified surgery with ridge recontouring as a predictor of interproximal recession (OR \ensuremath{\geq} 3.4). Preoperative bone level at the tooth surface was another predictor of interproximal recession (OR \ensuremath{\geq} 2.1). Recession of the distal papilla was also affected by a missing contact point (OR: 221.9), the implant to tooth distance (OR = 0.3) and the distance of the bone peak to the contact point (OR = 2.9). Midfacial recession was only associated with a buccal shoulder position (OR = 17.2). 
Conclusions: In order to optimize soft tissue levels around single implants, clinicians should limit papilla opening procedures and pay utmost attention to a correct implant and contact point positioning.},
  author       = {Cosyn, Jan and Moradi Sabzevar, Mehran and De Bruyn, Hugo},
  issn         = {0303-6979},
  journal      = {JOURNAL OF CLINICAL PERIODONTOLOGY},
  keyword      = {BRANEMARK IMPLANTS,PATIENT SATISFACTION,CASE SERIES,IMMEDIATE,ADJACENT,AESTHETICS,RADIOGRAPHIC EVALUATION,TOOTH IMPLANTS,PRIVATE DENTAL PRACTICES,SOFT-TISSUE RESPONSE,single tooth,risk,recession,dental implant},
  language     = {eng},
  number       = {9},
  pages        = {895--903},
  title        = {Predictors of inter-proximal and midfacial recession following single implant treatment in the anterior maxilla: a multivariate analysis},
  url          = {http://dx.doi.org/10.1111/j.1600-051X.2012.01921.x},
  volume       = {39},
  year         = {2012},
}

Chicago
Cosyn, Jan, Mehran Moradi Sabzevar, and Hugo De Bruyn. 2012. “Predictors of Inter-proximal and Midfacial Recession Following Single Implant Treatment in the Anterior Maxilla: a Multivariate Analysis.” Journal of Clinical Periodontology 39 (9): 895–903.
APA
Cosyn, J., Moradi Sabzevar, M., & De Bruyn, H. (2012). Predictors of inter-proximal and midfacial recession following single implant treatment in the anterior maxilla: a multivariate analysis. JOURNAL OF CLINICAL PERIODONTOLOGY, 39(9), 895–903.
Vancouver
1.
Cosyn J, Moradi Sabzevar M, De Bruyn H. Predictors of inter-proximal and midfacial recession following single implant treatment in the anterior maxilla: a multivariate analysis. JOURNAL OF CLINICAL PERIODONTOLOGY. 2012;39(9):895–903.
MLA
Cosyn, Jan, Mehran Moradi Sabzevar, and Hugo De Bruyn. “Predictors of Inter-proximal and Midfacial Recession Following Single Implant Treatment in the Anterior Maxilla: a Multivariate Analysis.” JOURNAL OF CLINICAL PERIODONTOLOGY 39.9 (2012): 895–903. Print.