DE7026583U - SLIDES FOR ANCHORING DENTAL PROSTHESES. - Google Patents

Description

Hanau, July 13th ί "Ό PA-Dr.Hn/ku

W. C. Heraeus GmbH, Hanau

Utility model registration

"Attachments for anchoring dentures"

The innovation relates to an attachment for anchoring dental prostheses, in particular on T, rod or round attachments. Such attachments represent the connection between an anchor crown and a dental prosthesis or dental bridge. Through this Attachments hold the denture in place at the same time.

T-attachments, which consist of a matrix and a patrix, are known. The matrix is arranged on the tooth crown, the patrix is attached to the dental prosthesis or dental bridge. It is inserted into the die. Well-known T-attachments were designed so that the vestibular and oral surfaces as well as the mesial and distal surfaces of the patrix were parallel run towards each other. Correspondingly, the associated surfaces of the die run parallel to one another. This T-item

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be have the advantage; that when inserting the patrix into the Good guidance is always guaranteed on the die.

Attachments that consist of a matrix and a patrix are also known, in which both the vestibular and the oral Surface as well as the m ° sial and distal surface run inclined to one another. The corresponding surfaces of the die run also inclined to each other. These attachments have the advantage that a good press fit of the male part in the female part is guaranteed is.

While with the first mentioned T-attachments with parallel running A good adhesive fit is not possible on surfaces and there is not inconsiderable wear due to full surface friction in the course of use occurs, the attachments with surfaces that are inclined to one another do not have good guidance when they are introduced the male part into the female part so that if the prosthesis detaches a little, it can be expected to fall down.

The innovation has set itself the task of an attachment, in particular T-attachment, which no longer has the disadvantages mentioned.

The attachment for anchoring dental prostheses, in particular the T, rod or round-shaped attachment, is in accordance with the innovation characterized in that two opposing surfaces of the male mold uarallel to each other and the two other opposing surfaces of the male mold are inclined to one another and the corresponding opposing one another Surfaces of the die also run parallel or inclined to one another. Such attachments have proven themselves at

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which the vestibular and the oral surfaces of both the matrix and the patrix run parallel to each other and the mesial and distal surfaces of the male part and the female part are inclined to one another. On the other hand, it is also possible that the mesial and distal surfaces of the matrix and patrix parallel to each other and the vestibular and oral surfaces of the matrix and patrix are inclined to one another. Seen in cross section, the mutually inclined surfaces form a cone, the is tapered towards the neck of the tooth. This innovation-compliant Execution of the attachment advantageously combines both advantages of the known attachments. It is due to the innovation Attachment, on the one hand, always ensures good guidance of the patrix in the matrix from the start; on the other hand, this is ensured due to the mutually inclined course of the other two surfaces, a good adhesive fit of the male part in the female part is ensured. In Advantageously, the patrix is provided with an activation slot known from calibration, which runs parallel between the two mutually extending surfaces is located. In the finished state, the male and female parts of the attachment consist in particular of both a mouth-resistant metallic material.

The figures show an exemplary embodiment of an innovation according to the invention formed T attachment.

FIG. 1 shows a view of a die seen from the mesial side

FIG. 2 shows a vertical section through the male mold

Reference number 1 denotes the oral and vestibular surfaces of the matrix, reference number 2 denotes the mesial surfaces

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and uistal surfaces of the die. The reference number 2 ¹ denotes the uiesialöri utid distalcxi surfaces of the patrix. The reference number 3 is assigned to the arm of the T attachment. According to the innovation, the surfaces provided with the reference numeral 2 or 2 ^{1 run} inclined to one another, while the surfaces marked with the reference numeral 1 run parallel to one another. However, as already explained, the vestibular and oral surfaces 1 can also run inclined to one another, while the mesial and distal surfaces 2 run parallel to one another. In this case, the! corresponding surfaces of the patrix. The angle of inclination of a ^dl] surface is advantageously in the range between 1 and 8 °, 'it is preferably about 3 °.

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Claims (6)

Protection claims 1. Attachment for anchoring a dental prosthesis or a tooth j Bridge, in particular T, rod or round-shaped attachments, consisting of a matrix and a pallet arranged in it trize, characterized in that two opposing surfaces of the patrix and the corresponding two surfaces | surfaces of the die parallel to one another and the two other i opposing surfaces of the male die and the j Die run inclined to each other. ■ 2. Attachment according to claim 1, characterized in that the i vestibular and oral surfaces of the matrix and the patr-'ze I parallel to each other and the mesial and disxal surfaces j the male and female dies are inclined to one another. j 3. Attachment according to claim 1, characterized in that the J vestibular and oral surfaces of the female part and the male part I. inclined to each other and the mesial and distal surfaces j the male and female molds run parallel to each other. j 4. Attachment according to one or more of the preceding claims, characterized in that the angle of inclination & the mutually inclined surfaces is in the range between 1 and 8 °! preferably about 3 °. 5. Attachment according to one or more of the preceding claims, characterized in that the patrix has an activation slot which is between the two to each other
extending surfaces is arranged. 702658312.11.70 6. Attachment according to one or more of the preceding claims, characterized in that the female and male molds consist of a mouth-resistant metallic material. 702658312.11.70