Results 261 to 270 of about 263,806 (296)
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Laminated single impression technique for cast posts and cores
The Journal of Prosthetic Dentistry, 1985A laminated single impression technique for cast post and core has been described. Its advantages are the ease and versatility with prefabricated or customized post techniques (Fig. 14) and the one-step registration of single or multiple divergent canals. Its disadvantage is the necessity for additional laboratory procedures.
G J, Chiche, M G, Mikhail
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A technique to facilitate the handling of post-core restorations
The Journal of Prosthetic Dentistry, 1985The initial post-core impression is made with the preferred materials, for example, Whaledent System (Whaledent International, New York, N.Y.) and indirect impression technique. The laboratory technician is instructed to make a T handle on the finished restoration (Fig. 1). The T is aligned buccolingually and made sufficiently sturdy to accept occlusal
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Microhardness evaluation of a two-piece post and core technique
The Journal of Prosthetic Dentistry, 1993This study compared the microhardness of one- and two-piece cast post cores. Twenty 0.070 inch Whaledent "burn-out" posts were invested in a phosphate investment, cast, and bench cooled to room temperature. Five samples, were grouped by Sturdicast or Midas metal and by casting technique.
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Technique for the fabrication of a cast post and core with nonprecious metal
The Journal of the American Dental Association, 1977A technique for the construction of a cast post and core with a nonprecious metal is described. The technique is a practical and inexpensive approach to the construction of this type of restoration.
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Post‐and‐Core Assemblies Made With an Accelerated Pattern Elimination Technique
Journal of Prosthodontics, 1994PurposeAccelerated pattern elimination has the potential for increasing productivity. This study evaluated the accelerated pattern elimination technique using three commonly used phosphate‐bonded investments.Materials and MethodsPart one of this study determined the mean time interval from start of mixing to the maximum exothermic setting reaction ...
J H, Bailey, D J, Sherrard
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All-Ceramic Post, Core, and Crown: Technique and Case Report
Journal of Esthetic and Restorative Dentistry, 2001The functional and esthetic restoration of severely compromised anterior teeth is a challenge to clinicians in their daily practice. The duplication of the optical characteristics of an intact tooth, including shade, translucency, and fluorescence, is often made difficult by the use of metal infrastructures, such as post-and-cores and copings.
G C, Lopes +3 more
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T-pins in a direct pattern technique for posts and cores
The Journal of Prosthetic Dentistry, 1978A practical direct technique for making post and core impressions with a T-pin and self-curing acrylic resin was described. Emphasis was placed on the function of the T-shaped plastic pin in fabricating the pattern. Clinical procedures for each step were described in detail.
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The Quality of Post and Cores Made Using a Reduce-Time Casting Technique
Operative Dentistry, 2009SUMMARY Objectives: This study investigated the castability or casting completeness, surface roughness and dimensional accuracy of castings produced using a technique that requires as little as 24 minutes from the time of investment. Methods and Materials: A total of 225 gold castings (45 per group) were fabricated using two standard ...
Paul A, Hansen +3 more
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A Prosthetically Guided Technique for Cast Post-and-Core Fabrication.
Compendium of continuing education in dentistry (Jamesburg, N.J. : 1995), 2021Despite it being an older, conventional production method, the cast metal post and core is still often considered the best option for the restoration of severely damaged teeth. The direct technique for fabrication of cast post-and-core patterns, however, can pose challenges due to the inefficiencies and guesswork involved in creating an appropriate ...
Jason D, Lee, Mona, Khan, Sang J, Lee
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Practical technique for the fabrication of a direct pattern for a post-core restoration
The Journal of Prosthetic Dentistry, 19761 he pulp chambers of teeth vary considerably in their mesiodistal-labiolingual sections1 Preparation of these pulp chambers, particularly those of the canines and premolars, to receive a cylindrical prefabricated post will mean unjustifiable removal of tooth structure or relying on the cementing medium alone to offset the lateral forces of mastication.
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