Abstract
Data sources English, French or German articles were identified in Medline and EMbase, and in the reference lists of retrieved articles.
Study selection The in-vitro studies were of single rooted teeth (no resin analogues) and load angles of 130–135°. In-vivo studies were of ⩾3 years’ duration. These included teeth that could be identified separately with complete crown restoration including fixed partial denture abutments and detectable information regarding success or failure.
Data extraction and synthesis For in-vitro studies, primary outcome was load-to-failure. For in-vivo studies, failure was defined as a need for recementing, a new restoration of any kind, or tooth extraction. A qualitative synthesis of all included in-vitro and in-vivo studies was performed along with a meta-analysis of four in-vitro studies.
Results Ten in-vitro and six in-vivo studies were included. The meta-analysis of four in-vitro studies revealed no significant difference in fracture load. There was also little difference in the mode of fracture across the 10 in-vitro studies. For three of the in-vivo studies it was possible to construct a life table that indicated the survival rate for cast posts was between 87 and 88% and for direct posts was 86% at 72 months.
Conclusions There is no conclusive evidence favouring cast over direct post and core preparations or vice versa. The literature on the clinical success of post-retained cores is scare and randomised controlled trials are needed.
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Reprinted from Journal of Prosthetic Dentistry, Vol 87, Heydecke G, Peters MC, The restoration of endodontically treated, single rooted teeth with cast or direct posts and cores: a systematic review, p. 380–386 (2002), with permission from the Editorial Council of the Journal of Prosthetic Dentistry.
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Address for correspondence: Dr Guido Heydecke, Department of Prosthodontics, School of Dentistry, Albert-Ludwigs University, Hugstetter Strasse 55, 79106 Frieburg, Germany. E-mail: heydecke@umich.edu
Heydecke G, Peters MC. The restoration of endodontically treated, single rooted teeth with cast or direct posts and cores: a systematic review. J Prosthet Dent 2002; 87:380–386
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Creugers, N. No conclusive evidence favouring cast over direct post and core preparations. Evid Based Dent 4, 89–90 (2003). https://doi.org/10.1038/sj.ebd.6400191
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DOI: https://doi.org/10.1038/sj.ebd.6400191
