Document Detail

Retentive characteristics of an internally threaded post system.
MedLine Citation:
PMID:  8445554     Owner:  NLM     Status:  MEDLINE    
Internally threaded, stainless steel posts 10 mm in length and 1.82 mm in diameter or stainless-steel Para-Post dowels 1.7 mm in diameter were cemented in extracted human teeth with zinc phosphate cement. Titanium alloy screws 1.5 mm in diameter were placed in the internally threaded posts and tensile force was applied to the screws or Para-Post dowels until dislodgment of the post or fracture. The retention of the Para-Post system was significantly greater than the experimental posts. Although all screws exhibited deformation, there was no breakage or distortion of the internally threaded posts or Para-Post dowels. Retention for both systems exceeded reported forces generated in humans.
K A Laurell; P O'Neilly
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of prosthetic dentistry     Volume:  69     ISSN:  0022-3913     ISO Abbreviation:  J Prosthet Dent     Publication Date:  1993 Mar 
Date Detail:
Created Date:  1993-04-05     Completed Date:  1993-04-05     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:  258-61     Citation Subset:  D; IM    
Section of Restorative and Prosthetic Dentistry, Ohio State University, College of Dentistry, Columbus.
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MeSH Terms
Analysis of Variance
Bite Force
Dental Prosthesis Retention / methods*
Dental Stress Analysis
Post and Core Technique / instrumentation*,  standards
Tensile Strength
Tooth Fractures

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

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