ITSA20070019A1 - DENTAL BASE SYSTEM WITH ABUTMENTS - Google Patents

Description

Description of the invention having as title;

"DENTAL BASE SYSTEM WITH ABUTMENTS"

2) SUMMARY

The dental base system with abutments is a technical support tool for the development of dental impressions, used by dental technicians.

The main purpose of the invention is to obtain the maximum precision of the development of the dental impression.

Said precision is obtained by a screw with a conical end which, by inserting itself in a recess which is also conical placed in the insert for abutments from a fixed position and always the sressa of the inserts even after their removal for the subsequent phases of the work on the impression and that reassembled in the base, the inserts are repositioned in the exact initial position.

Said tool is composed of a base in which n. 16 abutment holder inserts.

3} DESCRIPTION

The dental base system with abutments consists of a base support (1) where all the pieces rest on it,

The base of a metal, to make the whole system of the base stable and rigid, two cylindrical guides (2) rise which vertically guide a lower cross-member (3) on which S place a second cross-member {4) which through the two screws (5 ) blocks the impression holder (6) where a gypsum or acrylic resin material will be poured.

A base (7L4. Centered in a housing (B) is inserted in the central part of the base.

The base with magnet (9Ϊ carrying the Insert holders (10), the inserts (11) and the abutments (12),

A pin (14) gives a rotation reference of the base - (9} in an orthogonal position of the system.

The base along its external perimeter has threaded holes in which the screws (13) are inserted, these pass through the insert (10) and through the conical end, block the insert (11)

The base (9) has a channel where the 16 positions (10 and 11) are mounted. This channel (as shown in Figure 3) simulates the median directrix of an average sized dental arch formed by 16 teeth.

The insert (11) in the upper part has 2 protruding fins that fit into the insert holder (10) to give it a fixed, always equal position.

The insert (11) in the upper area also has a conical housing and a threaded seat which allow the abutment (12) to be centered and locked in the conical housing in a fixed position when screwing onto the insert. and always the same. The conical end of the screw (13) is inserted into the conical cavity of the insert 11) which, passing through the insert holder (105, always locks both in the same position in a precise point that we will call point "o" which gives reference and precision to the system.

This allows to develop precise and stable impressions over time, even by removing the product from the base several times, with the abutments (12) and relative abutment holder inserts (11) (operation necessary for the subsequent phases of the work to be performed), the latter a once reassembled in the base they lock and position themselves with precision, always dome is at the start of work,

Giving the maximum precision of the product that allows us to reach the goal of having an excellent technical support for processing.

The abutment (12) in its constructive form has a thin shank which by bending it appropriately means that the end of the abutment itself can be oriented and centered in the point that has been marked on the slide (15) corresponding to the relief of the cast, of the dentition made from the tray (6).

The system is equipped with a pin extractor (16) inserted in a base (17) which has the same shape and centered position of the planes as the base (9)

The function of this extractor is to partially extract the abutment holders 11 with the relative abutment (12) from the base {9}, after the plaster development of the impression as shown in fig. 7, this is possible after unlocking the insert (11) by unscrewing the screw (13 which blocked it.

This partial extraction is possible, by mounting the shim (18} on the base (17}) by inserting the base (9) on the pins and exerting a vertical pressure, the abutment holders are pushed upwards.

The plaster impression formed on the abutments 112 can thus be cut for the subsequent processing steps

The shim (18) removed from the base {17} allows the complete expulsion of all the inserts (11} with relative abutments and plaster impression as shown in fig. 3.

Claims (1)

CLAIM 1. It claims both the constructive form from the base. (9) that its construction in any material (metal-resin plastic etc.) which ensures its stability and shape over time. 21- The assembly of the insert holder {10 of the insert (11}, and of the abutment (12}) between them is claimed, both used in the base 19) and also used individually outside the base. 3 claims the rotation system of the base (9) on the support 1 on the center of rotation and a magnet which blocks the base (9) in the desired point of rotation. 4) System for developing the impression through the two columns (2) which vertically adjust the impression tray (6) and the locking system of these on the crosspiece {3}. } retains this position even after the system has been overturned on the columns {2} see Fig. 1 and Fig. 6. 5) The extraction system of the abutment holder {il-} and of the abutment (12} is claimed, which ensures n- 2 positions according to the needs of the work on the product; partial extraction and total extraction (see fig.? and E)