Document Detail

Soft tissue correction of a single-tooth pontic space: a comparative quantitative volume assessment.
MedLine Citation:
PMID:  10756289     Owner:  NLM     Status:  MEDLINE    
STATEMENT OF PROBLEM: Various augmentation procedures are recommended for the correction of localized alveolar ridge defects. However, no study has quantitatively evaluated the results of these procedures to date. PURPOSE: This study compared 2 soft tissue augmentation surgeries commonly used to alter contours of single-tooth pontic space by quantifying 3-dimensional volume changes with the optical projection Moiré method at 1 and 3.5 months after surgery. MATERIAL AND METHODS: Twenty-four patients required surgery. Each patient had a localized alveolar ridge defect, corresponding to a mesial-distal width of 1 single tooth. The defect of 12 patients was corrected with a subepithelial connective tissue graft; the remaining 12 patients were treated by receiving a free full-thickness gingival graft, which included epithelium and connective tissue with fatty tissue. Six unoperated defects of 6 patients formed the control group. For each defect, an impression was made before treatment, at 1 and 3.5 months after surgery to measure the volume changes on the dental casts with a validated projection Moiré system. Volume change was assessed relative to the preoperative dimension at the buccal and crestal aspects of the single-tooth pontic space. RESULTS: At 3.5 months postsurgery, mean volumetric gain for the connective tissue group with 159 mm(3) (SD +/- 80) was significantly greater (P =.027) than for free full-thickness gingival graft group with 104 mm(3) (SD +/- 31). CONCLUSION: The applied projection Moiré method proved its applicability in assessing 3-dimensional volume changes of pontic spaces with a single-tooth width. Volumetric assessment after 1 and 3.5 months revealed significantly greater volume gain with the subepithelial connective tissue graft in comparison to the free full-thickness gingival graft.
S P Studer; C Lehner; A Bucher; P Schärer
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Publication Detail:
Type:  Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of prosthetic dentistry     Volume:  83     ISSN:  0022-3913     ISO Abbreviation:  J Prosthet Dent     Publication Date:  2000 Apr 
Date Detail:
Created Date:  2000-05-10     Completed Date:  2000-05-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376364     Medline TA:  J Prosthet Dent     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  402-11     Citation Subset:  D; IM    
Center for Dental Medicine, University of Zürich, Zürich, Switzerland.
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MeSH Terms
Adipose Tissue / transplantation
Alveolar Ridge Augmentation
Analysis of Variance
Connective Tissue / transplantation
Dental Abutments
Dental Models
Epithelium / transplantation
Follow-Up Studies
Gingiva / anatomy & histology*,  transplantation
Gingivoplasty / methods*
Image Processing, Computer-Assisted
Moire Topography
Prospective Studies
Reproducibility of Results
Statistics, Nonparametric
Video Recording

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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