Search PubMedSearch

PubMed · 353261

A multiple post-core technique.

Abstract

An indirect technique to prepare a multirooted pulpless tooth to receive a crown is presented. The crown also may be made on the newly completed core and its die. The procedure promotes the use of a commercial dental laboratory. The system, which uses divergent roots, results in a cast core having maximum retention.

Explore related subjects

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

B T Michnick, R B Raskin. 1978. A multiple post-core technique.. https://doi.org/10.1016/s0022-3913(78)80070-5

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

To vent or not to vent?

The complete seating of full coronal restorations during cementation is hindered by the inability of cement to flow from the internal surface of the crown, and possible binding of the crown on the tooth. Perforation venting is an effective technique to allow full seating but requires repair of the perforation. Provision of space between the crown and the tooth for cement flow is also an effective technique, and does not require repair of a perforation. Such spacing is commonly achieved with die spacer, and has the added possibility of decreasing crown deformation during cementation by diminishing binding between the crown and the tooth. A disclosing agent is effective in aiding complete seating by identifying areas of binding. These areas can subsequently be adjusted, which will allow more complete seating. The placement of an appropriate amount of cement in the crown or on the preparation is an important addition to cementation technique.

Cementation

Powder enrichment effects on film thickness of zinc phosphate cement.

The effects of powder erichment and subambiant mixing temperatures on the film thickness of three zinc phosphate cements were measured by two methods. A decrease in film thickness accompanied reduced mixing temperatures and standard powder-liquid ratios. Increased powder-liquid ratios with reduced mixing temperatures showed a decreased film thickness when measured according to ADA Material Specification No. 8. Both Fleck's and S. S. White cement showed an increased film thickness when measured by a tapered-die system. Because of the geometry of the preparations, small increases in cement film thickness can be clinically significant when cementing complete veneer crowns.

Cementation