METHOD AND DEVICE FOR THE RETRACTION AND HEMOSTASIS OF TISSUE DURING CROWN AND BRIDGE PROCEDURES

Title:

METHOD AND DEVICE FOR THE RETRACTION AND HEMOSTASIS OF TISSUE DURING CROWN AND BRIDGE PROCEDURES

Document Type and Number:

WIPO Patent Application WO2004049965

Kind Code:

A3

Abstract:

A method and a device for effecting the cordless retraction of the gingival sulcus tissue (21) prior to the taking of an impression of a tooth (20) for making a crown or bridge which is attained by controlling any bleeding in the gingival sulcus area (21), and utilizing a dental dam (24; 124; 224) preferably formed of a sponge or foam like material to contain an astringent fortified silicone impression material (26) embedded about the prepared tooth (20), and using the patient's biting force to apply the necessary pressure onto the dam until the silicone impression material (26) sets and adheres to the dam to enhance easy removal of the set impression material from the tooth (20). The dam (24; 124; 224) is formed to accommodate either the posterior teeth or the anterior teeth. The dam has retainers (125A, 125B; 225A, 225B) formed therein for aiding in holding the silicone impression material.

Inventors:

DRAGAN WILLIAM B (US)

Application Number:

PCT/US2003/037711

Publication Date:

September 02, 2004

Filing Date:

November 25, 2003

Export Citation:

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Assignee:

CENTRIX INC (US)
DRAGAN WILLIAM B (US)

International Classes:

A61C9/00; (IPC1-7): A61C5/14

Foreign References:

US4531914A	1985-07-30
US4071935A	1978-02-07
US5676543A	1997-10-14
US2620502A	1952-12-09
US3705585A	1972-12-12
US3056205A	1962-10-02

Other References: