No Distortion Impression Tray and Method of Use

Abstract

A device for obtaining an impression for a tooth or plurality of teeth or oral structures comprising a receptacle to hold impression material, to which has been affixed a body, said body which can be adjusted to engage teeth and oral structures thereby increasing stability, limiting the movement of the receptacle as the impression material sets, directing impression material towards the area to be restored, and confining impression material within the receptacle. A method of use is also discussed.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

A detailed description of preferred embodiments of the claimed invention is provided herein below, with reference to the following drawings, in which:

FIG. 1 is a top view of a dental container and more specifically a maxillary impression tray.

FIG. 2 is a top view of a dental container and more specifically a mandibular impression tray.

FIG. 3 is a top view of a dental container and more specifically a maxillary impression tray, containing unset impression material, to which is attached a body which forms a boundary or border thereby confining impression material to the maxillary teeth and preventing spillage of said impression material towards the palate.

FIG. 4 is a top view similar to FIG. 3, additionally demonstrating a plurality of bodies comprising occlusal stops.

FIG. 5 is a top view of a dental container similar to FIG. 3 containing impression material which has hardened or set.

FIG. 6 is a top view similar to FIG. 4 containing impression material which has hardened or set.

FIG. 7 is a top view of a of a dental container similar to FIG. 2 demonstrating a plurality of bodies forming occlusal stops, which are embedded within impression material which has hardened or set.

FIG. 8 is a longitudinal cross sectional view of a of a dental tray or container filled with impression material demonstrating bodies comprising occlusal stops located in the anterior and posterior aspects of a container or tray.

FIG. 9 is a longitudinal cross sectional view of a dental container similar to FIG. 8 illustrating the placement of the dental container or tray over teeth until resistance is obtained by the engagement of the semi rigid compressive occlusal stops on the teeth.

FIG. 10 is a longitudinal cross sectional view of a of a dental container similar to FIG. 9 illustrating the complete seating of the dental tray or container over the teeth as the semi rigid compressive occlusal stops wrap around the distal and proximal teeth thereby rendering said tray more stable and secure as the soft impression material hardens or sets.

FIG. 11 represents a horizontal cross section of a dental container, or more specifically, a sectional impression tray, filled with unset impression material, and anterior and posterior bodies acting as occlusal stops.

FIG. 12 represents a horizontal cross section of a dental container, or more specifically, a sectional impression tray, as seen in FIG. 11 after it has been placed in the mouth and allowed to set and was subsequently removed from the mouth.

FIG. 13 is a horizontal cross section of a dental container, or more specifically, an impression tray, demonstrating a plurality of bodies comprising border/occlusal stops which are adjustable.

FIG. 14 is a horizontal cross section of a dental container, or more specifically, an impression tray as described in FIG. 13 that has been inserted over the teeth and further demonstrating how the proximal body comprising an occlusal stop has been adjusted on the tray to engage the proximal tooth and how the distal body comprising an occlusal stop has been adjusted to act as a boundary thereby directing the impression material towards the teeth and coincidentally limiting the expression of impression material out the open ended distal aspect of the tray.

FIG. 15 is a horizontal cross section of a dental container, or more specifically, an impression tray filled with unset impression material illustrating bodies comprising occlusal stops which have been adjusted in such a position as to engage teeth immediately adjacent to a single abutment tooth to be restored, further demonstrating how the bodies stabilize the tray during the setting time of the impression material as well as how they direct the impression material towards the abutment tooth and limit the expression of impression material out of the open end of the tray.

FIG. 16 is a horizontal cross section of a dental container, or more specifically, an impression tray filled with unset impression material illustrating bodies which have been adjusted in such a position as to engage teeth immediately adjacent to multiple abutment teeth to be restored.

FIG. 17 is a cross section of a maxillary dental container or tray illustrating an open end and a body acting as an occlusal stop as well as a boundary.

FIG. 18 is a cross section of a mandibular dental container or tray illustrating an open end and a body acting as an occlusal rest as well as a boundary.

Claims

1. A tray or container which holds material to be used for the taking of a dental impression, which when placed in a mouth is stable, the device comprising: a receptacle to hold said material; anda body which has been affixed to a receptacle, said body which can be adjusted to engage teeth and oral structures.

2. A tray or container as in claim 1 in which said body engages teeth and oral structures and directs impression material to the areas to be restored and confines impression material within the tray or container.

3. A tray or container as in claim 1 which limits movement of said tray.

4. A tray or container as in claim 1 which has an occlusal stop.

5. A tray or container as in claim 1 which has a boundary.

6. A tray or container as in claim 1 which has an occlusal stop and a boundary.

7. A tray or container as in claim 1 in which the body is deformably rigid.

8. A tray or container as in claim 1 in which the body is flexible.

9. A tray or container as in claim 1 in which the body is adjustable in horizontal position in the tray or container.

10. A tray or container as in claim 1 in which the body is adjustable in vertical position in the tray or container.

11. A tray or container as in claim 1 in which the body is deformably rigid initially and then will set or harden.

12. A tray or container as in claim 11 in which the body will set or harden when exposed to air.

13. A tray or container as in claim 11 in which the body will set or harden when exposed to water.

14. A tray or container as in claim 11 in which the body will set or harden when exposed to saliva.

15. A tray or container as in claim 11 in which the body will set or harden when exposed to heat.

16. A tray or container as in claim 11 and in which the body will set or harden when exposed to light.

17. A tray or container as in claim 1 in which the body may be deformably rigid and not set.

18. A tray or container as in claim 1 in which said body is releasably adhered to the tray or container.

19. A tray or container as in claim 1 in which the body is incorporated into the tray or container during the manufacturing process.

20. A tray or container as in claim 1 in which the body may be adhered to the stock or custom tray or container before it is inserted into the mouth.

21. A tray or container as in claim 1 in which the body may comprise any or a plurality of, but not limited to a wax, putty, silicone, polyvinylsiloxane, polyether, rubber, or plastic.

22. A method of taking an impression for a dental procedure comprising: (a) Placing or adjusting one or a plurality of bodies in a tray or container in a position so as to anchor onto teeth or oral tissues adjacent to the area to be restored;(b) inserting impression material into the tray or container within the boundaries of the bodies or alternately;(c) inserting impression material into the tray or container completely covering the body or plurality of bodies;(d) inserting the tray or container filled with impression material into the mouth over the area to be restored;(e) exerting pressure on the tray or container until slight resistance of the body is felt;(f) allowing the tray or container to remain over the site to be restored until the impression material sets;(g) withdrawing the tray or container from the mouth.

23. A method of taking an impression for dental procedure comprising: (a) releasably affixing one or a plurality of bodies in a tray or container in a position so as to anchor onto teeth or oral tissues adjacent to the area to be restored;(b) inserting impression material into the tray or container within the boundaries of the bodies;(c) inserting the tray or container filled with impression material into the mouth over the area to be restored;(d) exerting pressure on the tray or container until slight resistance of the body or plurality of bodies is felt;(e) allowing the tray or container to remain over the site to be restored until the impression material sets;(f) withdrawing the tray or container from the mouth;(g) removing the body or plurality of bodies from the impression before pouring the impression.