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Ridge Preservation Comparing a Socket Allograft Alone to a Socket Allograft Plus a Facial Overlay Xenograft: A Clinical and Histologic Study in Humans.
MedLine Citation:
PMID:  23339378     Owner:  NLM     Status:  Publisher    
Background. Previous studies of ridge preservation showed a loss of about 18% or 1.5 mm of crestal ridge width in spite of treatment. The primary aim of this randomized, controlled, blinded clinical trial was to compare a socket graft to the same treatment plus a buccal overlay graft, both with a polylactide membrane, to determine if loss of ridge width can be prevented by use of an overlay graft. Methods. Twelve positive control patients received an intrasocket mineralized cancellous allograft (Socket group) while twelve test patients received the same socket graft plus buccal overlay cancellous xenograft (Overlay group). Horizontal ridge dimensions were measured with a digital caliper and vertical ridge changes were measured from a stent. Prior to implant placement at 4 months a trephine core was obtained for histologic analysis. Results. The mean horizontal ridge width at the crest for the Socket group decreased from 8.7 ± 1.0 mm to 7.1 ± 1.5 mm for a mean loss of 1.6 ± 0.8 mm (p < 0.05) while the Overlay group decreased from 8.4 ± 1.4 mm to 8.1 ± 1.4 mm for a mean loss of 0.3 ± 0.9 mm (p > 0.05). The Overlay group was significantly different from the Socket group (p < 0.05). Histologic analysis revealed that the Socket group had 35 ± 16% vital bone while the Overlay group had 40 ± 16% (p > 0.05). Conclusions. The Overlay treatment significantly prevented loss of ridge width and preserved or augmented the buccal contour. The Socket and Overlay groups healed with a high percentage of vital bone.
Evmenios Poulias; Henry Greenwell; Margaret Hill; Dean Morton; Ricardo Vidal; Brian Shumway; Thomas L Peterson
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-23
Journal Detail:
Title:  Journal of periodontology     Volume:  -     ISSN:  1943-3670     ISO Abbreviation:  J. Periodontol.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-23     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8000345     Medline TA:  J Periodontol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Private Practice, Athens, Greece.
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