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Pubmed for Handhelds

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  • Title: Comparison of the retentive properties of a sleeve cast crown/core system with crowns cemented to conventional cast cores.
    Author: Cohen BI, Deutsch AS, Condos S, Musikant BL.
    Journal: J Prosthet Dent; 1992 Jul; 68(1):63-8. PubMed ID: 1403923.
    Abstract:
    The retention of the crown to the core substructure is of great importance for a successful restoration. The aim of this study was to compare the retentive values of the Flexi-Cast post and its sleeve crown/core complex with that of a crown cemented to a conventional cast post. Forty single-rooted teeth divided equally into four groups were used. Flexi-Cast crown and cores were cemented to Flexi-Cast posts in groups 1 through 3. Group 4, the control group, comprised crowns cemented to conventional cast cores. Groups 1 through 4 had retentive values of 126.2, 135.5, 185.0, and 79.3 lb, respectively. Statistically, the increase in retention for all sizes of the Flexi-Cast crown and cores when compared with the control cast post and crown was found to be significant (p less than or equal to 0.0001).
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