Document Detail

Crestal bone changes on platform-switched implants and adjacent teeth when the tooth-implant distance is less than 1.5 mm.
MedLine Citation:
PMID:  22292143     Owner:  NLM     Status:  MEDLINE    
Because of the peri-implant bone resorption that occurs when a non-platform switched implant is exposed to the oral environment, it has been recommended to maintain 1.5 mm between the tooth and implant to preserve the bone adjacent to the teeth. Several studies have documented that platform-switched implants have less peri-implant bone resorption than matched implants. This retrospective radiographic analysis studied 70 platform-switched implants placed less than 1.5 mm from an adjacent tooth and with prostheses loaded for a minimum of 6 months. The mean distance between the implant and tooth was 0.99 mm (range, 0.20 to 1.49 mm); the mean horizontal and vertical bone resorption was 0.36 and 0.43 mm, respectively. The mean bone peak reduction was 0.37 mm. The results confirm that the use of platform-switched implants reduces bone resorption after two-piece implants have been uncovered and that it is possible to place this type of implant 1 mm from teeth while maintaining the bone level adjacent to them (the bone peak).
Xavier Vela; Víctor Méndez; Xavier Rodríguez; Maribel Segalá; Dennis P Tarnow
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The International journal of periodontics & restorative dentistry     Volume:  32     ISSN:  1945-3388     ISO Abbreviation:  Int J Periodontics Restorative Dent     Publication Date:  2012 Apr 
Date Detail:
Created Date:  2012-01-31     Completed Date:  2012-07-20     Revised Date:  2013-04-30    
Medline Journal Info:
Nlm Unique ID:  8200894     Medline TA:  Int J Periodontics Restorative Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  149-55     Citation Subset:  D    
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MeSH Terms
Alveolar Bone Loss / classification,  radiography*
Alveolar Process / radiography
Dental Implant-Abutment Design*
Dental Implants*
Dental Prosthesis Design
Follow-Up Studies
Middle Aged
Radiography, Bitewing
Radiography, Dental, Digital
Retrospective Studies
Tooth / radiography*
Reg. No./Substance:
0/Dental Implants

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

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