Document Detail

Bone loss around immediately loaded transitional implants: histologic and microcomputed tomographic analysis--a case report.
MedLine Citation:
PMID:  23057063     Owner:  NLM     Status:  In-Data-Review    
Immediate loading of dental implants can significantly decrease treatment time and thus increase patient acceptance. However, there is still a need to investigate whether an implant in which primary stability is achieved can be immediately loaded without the formation of connective fibrous tissue at the interface. Three transitional implants were placed in an edentulous mandible: two implants loaded immediately and one left unloaded. All transitional implants were retrieved after a period of 12 weeks to perform qualitative and quantitative analysis of the peri-implant tissue and bone-implant interface. Bone biopsy specimens containing the transitional implant were analyzed using microcomputed tomography (micro-CT). Subsequently, the same samples were analyzed using standard undecalcified histology. Micro-CT analysis showed that bone tissue was slightly detached from the surface of the loaded implant. Histology demonstrated the presence of a soft tissue layer inside the socket. Morphometric values of total bone volume, bone-implant contact, and bone connectivity were higher for the unloaded implant, which appeared to be covered by an almost continuous layer of bone. Micro-CT evaluation of some morphometric parameters and histologic results pertaining to small-diameter transitional implants showed that uncontrolled loading may produce untoward effects on peri-implant bone healing.
Roberto Grassi; Alberto Rebaudi; Paolo Trisi; Ugo Covani; Antonio Barone
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The International journal of periodontics & restorative dentistry     Volume:  32     ISSN:  0198-7569     ISO Abbreviation:  Int J Periodontics Restorative Dent     Publication Date:  2012 Dec 
Date Detail:
Created Date:  2012-10-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8200894     Medline TA:  Int J Periodontics Restorative Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e195-203     Citation Subset:  D    
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