RU2595007C1 - Kuretovyh-zelenskih dental prosthesis attachment - Google Patents

Abstract

FIELD: medicine.

SUBSTANCE: invention refers to medicine, particularly to orthopaedic dentistry, and is intended for fixation of denture with help of lock fixation. Denture attachment consists of artificial crown basis and mechanical device consisting of patrix and matrix, made in form of first hinged device located in medial direction, and second hinged device located in distal direction, which consists of patrix, matrix and cylindrical rod with diameter of 1.5-3 mm and length of 1-4 cm, with possibility of connection of first hinged device with second hinged device. At that, first hinged device one end of medial, outer part of matrix is fixed to artificial dental crown, and internal part of patrix is connected with cylindrical shap rode, and at second distal end of cylindrical rod second hinged device is fixed, which matrix is base of prosthesis. At that, in base body is preliminary made channel, which diameter and length are for 1-2 mm larger than diameter and length of cylindrical shape rod, with possibility to accommodate cylindrical rod with help of bushing.

EFFECT: method, due to creation of lock fixation between detachable and removable part prostheses, which does not have rigid connection, allows excluding pressure and injuries in area of seat, improving blood circulation, reducing atrophy of bone tissue and mucous membrane of whole jaw during dental opening.

1 cl, 8 dwg, 1 ex

Description

FIELD OF THE INVENTION

The invention relates to medicine, in particular to the locking of the denture, and can be used in orthopedic dentistry.

State of the art

Known lock retainer of a removable denture containing a metal tubular matrix with a longitudinal through groove and a patric element with a slot and an orthogonal anchor and a neck, the patric element has the shape of an internal cavity of the matrix and is configured to interact with the latter, while the patric element and the neck is connected to the anchor in one piece and made of titanium nickelide, and the slot in the patrician element is made through, passing along the longitudinal axis of the patrician element and the neck to the anchor, and parts patrician element divorced with the formation of a wedge-shaped space between them (see US Pat. RU No. 2026033, IPC A61C 13/265, publ. 09.01.1995).

The disadvantage of this lock retainer is the design complexity, as well as the fact that when biting, there is excessive pressure on the jaw bone in the area of the seat, which injures the jaw bone.

Known clammer system for fixing a partial denture with a single tooth, consisting of a base with artificial teeth and a clasp, while at one end of the clasp there is a mechanical device consisting of an internal patrician and an external matrix, made in the form of a hinge, and at the second end the clammer’s seat in a fixed nest on an artificial tooth crown, while the outer matrix is fixed in the basis of the prosthesis with the possibility of removal with the prosthesis, and the inner patricia is made spherical and connected to the shoulder of the clasp, and the seat in the nests of the clasp is made on an artificial tooth crown vertically or horizontally with a lingual, palatine, or approximate surface.

In a clasp system, the system is mounted on a plate prosthesis.

In the clasp system, the outer matrix is fixed in the saddle-shaped part of the arch prosthesis (see Pat. RU No. 2538641, IPC A61C 13/00, A61C 13/265, A61C 13/267, publ. 10.01.2015).

The disadvantage of this clasp system is that the hinge device is not suitable for chewing load, and is contraindicated in case of end defects of the teeth, since the abutment teeth lean towards the defect.

The closest in technical essence and the achieved positive effect and accepted by the authors for the prototype is the lock of the denture, consisting of a base, an artificial tooth crown, a mechanical device consisting of an internal patrician and an external matrix, made in the form of a hinge device located medially, including the mount removable part of the prosthesis to the abutment teeth (see Lebedenko I.Yu., Peregudova B.A., Glebovat E., Lebedenko A.I. “Telescopic and locking attachments of dentures”, Moscow, p. 15, 16).

The disadvantage of this lock fastening is that there is a rigid connection between the removable and non-removable parts of the dentures, which leads to the creation of the “console” effect with end defects and shifts the axis of the tooth towards the missing teeth.

Disclosure of invention

The objective of the invention is to develop a locking denture that has the exception of pressure and trauma to the jaw bone in the area of the seat, improving blood flow, reducing atrophy of the bone tissue and mucous membrane of the entire jaw, relieving pressure on the mucous membrane during opening of the teeth, increasing the life of the remaining teeth .

The technical result that can be obtained using the present invention is to eliminate pressure and trauma to the jaw bone in the area of the seat, improve blood flow, reduce atrophy of the bone tissue and mucous membrane of the entire jaw during opening of the teeth, increase the life of the remaining teeth.

The technical result is achieved using a locking denture, consisting of a base, an artificial tooth crown, a mechanical device consisting of an internal patrician and an external matrix made in the form of an articulated device located medially, while it is additionally equipped with a second articulated device located distally, and a rod of cylindrical shape with a diameter of 1.5-3 mm and a length of 1-4 cm, with the possibility of connecting the first articulated device with a second articulated device, the first the hinge device with the outer part of the matrix is fixed to the artificial tooth crown, and the inner part of the patrician is connected to the rod of cylindrical shape, and at the second end of the rod of the cylindrical shape, the second hinge device is fixed, the outer matrix of which is connected to the base, and a channel is made in the body of the base with the possibility of placement in a rod of a cylindrical shape using a sleeve.

Thus, the implementation of the locking of the denture, consisting of two articulated devices and a cylindrical rod with a diameter of 1.5-3 mm and a length of 1-4 cm, with the possibility of connecting the first articulated device located medially with the second articulated device located distally, wherein the first hinge device is fixed to the artificial tooth crown by the outer part of the matrix, and connected to the cylindrical rod by the inner part of the patrician, and fixed to the second end of the cylindrical rod the second hinge device, the outer matrix of which is connected to the basis of the artificial tooth crown, and in the body of the channel, the execution of the channel with the possibility of placing a cylindrical rod in it using the sleeve allows the hinged locking devices to work, rotating around its axis and allowing the prosthesis base to simultaneously sit on the mucosa the shell of the prosthetic bed both in the distal and medial sections simultaneously.

Brief Description of the Drawings

In FIG. 1 given the lock of the denture, a cylindrical rod with hinged devices at the ends, the outer part of the matrix with the possibility of fixing to an artificial tooth crown, general view.

In FIG. 2, the same, a rod of cylindrical shape with hinged devices at the ends, the inner part of the patrician with the possibility of fixing to an artificial tooth crown, general view.

In FIG. 3, the same, the articulated device with the inside of the patrician is fixed to the artificial tooth crown, general view.

In FIG. 4, the same hinge device with the outer part of the matrix fixed to the artificial tooth crown, general view.

In FIG. 5, the same, the patrician is internal.

In FIG. 6, the same, the matrix is external.

In FIG. 7, the same, the attachment of the internal patrician to an artificial tooth crown.

In FIG. 8, the same, attachment of the outer matrix to the artificial tooth crown.

The implementation of the invention

The lock of the denture consists of a base (not shown in the drawing), an artificial tooth crown 1 and a mechanical device consisting of an internal patricia 2 and an external matrix 3, made in the form of a first articulated device (not indicated in the drawing), located medially, while it is equipped with a second articulated device (not indicated in the drawing) located distally, consisting of a patrician 2 internal and an external matrix 3, and a rod 4 made of a cylindrical shape with a diameter of 1.5-3 mm and a length of 1-4 cm, with the possibility connecting the first articulated device to the second articulated device, the first articulated device being attached to the artificial crown of the tooth 1 by one end with a medial, external part of the matrix 3, and connected to a cylindrical rod 4 by the inner part of the patrician 2, and of a cylindrical shape on the second distal end of the rod 4 a second articulated device is fixed, the outer matrix 3 of which is the basis of the prosthesis, and a channel (not shown in the drawing) is preliminarily executed in the basis body, the diameter and length of which is greater 1-2 mm in diameter and length of the rod 4 of a cylindrical shape, with the possibility of placing a rod 4 of a cylindrical shape in it using a sleeve (not shown in the drawing) or the first hinge device (see FIG. 2) the inner part of the patrician 2 is fixed to the artificial crown of the tooth 1, and the outer part of the matrix 3 is connected to the rod 4 of a cylindrical shape, and at the second end of the rod 4 of a cylindrical shape a second hinge device is fixed, the patricia 2 of which is inserted into the base of the prosthesis. Thus, the present invention allows to create a lock mount, where between the removable and non-removable part of the prosthesis there is no rigid connection.

Castle fastening of the denture is operated as follows.

The first hinge device located medially, the outer part of the matrix 3 is fixed to the artificial crown of the tooth 1, and the inner part of the patrician 2 is connected to the rod 4 of a cylindrical shape, and at the distal second end of the rod 4 of a cylindrical shape with a diameter of 1.5-3 mm and a length of 1- 4 cm, the diameter and length being identified empirically, securing a second hinge device, the outer matrix 3 of which is connected to the prosthesis base, and in the body of the prosthesis base, a channel is preliminarily made to accommodate a rod 4 of cylindrical shape with the help of the sleeve, thus, while biting onto the removable part of the prosthesis (not shown in the drawing), rotation occurs around one and the other axis of the hinge device and the basis of the prosthesis is connected to the fixed part of the prosthesis without injuring the abutment tooth, after that, after the mucosa the cover of the prosthetic bed will take over the load and shrink, the periodontal compliance and the mucous membrane of the prosthetic bed will be close in compliance with each other, thus, in the proposed castle connection the first and second hinge devices they rotate around their axis and do not transfer pressure to the abutment tooth until the prosthesis base overcomes the compliance of the mucous membrane of the prosthetic bed, balancing of the compliance between the mucous membrane of the prosthetic bed and the periodontium of the tooth occurs, as well as the distribution of pressure between the removable and non-removable part of the prosthesis.

Thus, the proposed locking of the denture does not compress the tissue of the prosthetic bed during opening of the teeth, when biting, the prosthesis is immersed in the mucous membrane of the prosthetic bed by the amount of mucosal compliance, and when the mouth is opened, the prosthesis returns to its previous position, while it makes tissue massage under the prosthesis improves blood flow, reduces atrophy of bone tissue and mucous membranes, increases the life of the remaining teeth.

зубы, на которые был изготовлен металлокерамический протез с предлагаемым замковым креплением.Example. Patient K., born in 1947, complained that the previous clasp prosthesis with a rigid locking connection loosened the abutment teeth, which had to be removed, the patient remained on the upper jaw

teeth on which a ceramic-metal prosthesis was made with the proposed lock fastening.

Chewing function does not suffer, fixation and stabilization is good, the patient successfully uses prostheses.

The lock of the denture was installed on another 8 patients, which also gave positive results.

The invention in comparison with the prototype and other known technical solutions has the following advantages:

- the exception of trauma to the periodontium of the supporting teeth when eating;

- balancing the compliance of the periodontium and the mucous membrane of the prosthetic bed;

- Improving the blood circulation of the tissue of the prosthetic bed;

- reduction of atrophy of bone tissue and mucous membrane;

- increase the service life of the abutment teeth;

- the ability to massage tissues under the prosthesis;

- performing a uniform load throughout the alveolar ridge;

- the ability to produce a rational load distribution between the alveolar ridge and the abutment teeth;

- elimination of the effect of the "console";

- allows you to eliminate the rigid connection between the removable and non-removable part of the prosthesis.

Claims (1)

The locking fixture of the denture, consisting of a base, an artificial tooth crown, a mechanical device, consisting of an internal patrician and an external matrix, made in the form of a hinge device located medially, characterized in that it is additionally equipped with a second hinge device located distally, and a cylindrical shaft molds with a diameter of 1.5-3 mm and a length of 1-4 cm, with the possibility of connecting the first articulated device to the second articulated device, while the first articulated device of the outer part the matrix is fixed to the artificial tooth crown, and the inner part of the patrician is connected to a rod of cylindrical shape, and at the second end of the rod of cylindrical shape, a second hinge device is fixed, the outer matrix of which is connected to the base, and a channel is made in the body of the base with the possibility of placing a cylindrical rod in it forms with a sleeve.

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