Tensile dislodgment evaluation of two experimental prefabricated post systems.
Oper Dent
; 21(5): 209-12, 1996.
Article
em En
| MEDLINE
| ID: mdl-9484174
ABSTRACT
This study tested the tensile dislodgment forces of two experimental post designs that are threaded 7 mm into the most coronal aspect of the root. Experimental post systems ParaPost XT-7 (XT-7), and ParaPost XT-10 (XT-10) were compared to the Flexi-Post (FP) and to the Standard ParaPost (SP). The XT-7 prototype post measured 7 mm in length, while all other post systems were 10 mm. The XT-7 and the FP are active post systems that are threaded throughout their entire length. The SP is a passive serrated post system, and the XT-10 is a combination active/passive design that has a 7 mm coronal thread with a passive serrated apical end. All systems tested were titanium alloy except the SP system, which was stainless steel. The purpose of this study was to compare an active and a passive post design to the experimental designs of the XT-7 active post and the combined active/passive design of the XT-10. This study clearly demonstrated highest retention for the active post system, least retention for the passive post, with an intermediate retentiveness for the combined design.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Técnica para Retentor Intrarradicular
/
Colagem Dentária
/
Descolagem Dentária
Limite:
Humans
Idioma:
En
Revista:
Oper Dent
Ano de publicação:
1996
Tipo de documento:
Article
País de afiliação:
Estados Unidos