Simplified technique for refabrication of cast posts and cores.
نویسنده
چکیده
This article describes a simple procedure of recording contours of an existing cast post and core that needs to be reconstructed, using a polyvinyl siloxane material as a matrix for fabrication of a new cast post and core in a relatively short time with reduced cost. The procedure involves the use of an acrylic resin material under pressure, which minimizes void formation in the post-and-core pattern.
منابع مشابه
Effects of core preparation time on the retention of cemented cast post
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Comparison of the effect of shoulder and contra bevel preparation on fracture resistance of teeth restored with cast posts Dr. SA. Shayegh* - Dr. F. Gangy** *- Assistant Professor of Prosthodontics Dept. - Faculty of Dentistry – Shahed University of Medical Sciences. **- Dentist. Background and Aim: Studies concerning the effects of post-core design on fracture resistance of endodontically trea...
متن کاملSurvival time of cast post and cores: a 10-year retrospective study.
OBJECTIVES The aim of this retrospective, longitudinal study was to examine the survival time of custom-fabricated, cast post and cores and to evaluate, which covariates influence the risk of failures over a period of up to 10 years based on a large patient collective. METHODS The files of 565 patients, who had been fitted with a total of 802 custom-fabricated, cast post and cores using a sta...
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Direct post-and-core restorations with prefabricated posts are becoming increasingly popular. A literature review was conducted to compare the clinical and in vitro performance of cast posts and cores to that of direct cores with prefabricated posts in single-rooted teeth. Research on the restoration of endodontically treated teeth was identified through a search of electronic databases. The se...
متن کاملInfluence of core-finishing intervals on tensile strength of cast posts-and-cores luted with zinc phosphate cement.
The core finishing of cast posts-and-cores after luting is routine in dental practice. However, the effects of the vibrations produced by the rotary cutting instruments over the luting cements are not well-documented. This study evaluated the influence of the time intervals that elapsed between the cementation and the core-finishing procedures on the tensile strength of cast posts-and-cores lut...
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ورودعنوان ژورنال:
- The Journal of prosthetic dentistry
دوره 83 6 شماره
صفحات -
تاریخ انتشار 2000