CN217066640U - Artificial tooth for artificial tooth implantation - Google Patents

Abstract

The utility model relates to a false tooth for artificial tooth implantation, which is used for connecting a tooth implantation body in an alveolar bone. The dental prosthesis comprises: an abutment, a crown and a buffer layer. The abutment tooth is provided with an implant body end which is connected with the dental implant body. The crown is indirectly connected with the abutment. The cushioning layer is interposed between the crown and the abutment, and has a hardness lower than that of the crown and that of the abutment. Therefore, when the artificial tooth is occluded, the buffer layer can exert the effect similar to the periodontal ligament, the force borne by the dental crown during occlusion is buffered, the force is evenly dispersed in the alveolar bone, the use comfort of the artificial tooth is further improved, and the damage of the artificial tooth and the alveolar bone when a hard object is occluded can be avoided.

Description

Artificial tooth for artificial tooth implantation

Technical Field

The utility model relates to a false tooth.

Background

A layer of periodontal ligament is arranged between the tooth root and the alveolar bone of the natural tooth, and the periodontal ligament is a highly elastic connective tissue fiber which surrounds the cementum of the tooth root and is connected with the gingiva and the alveolar bone, so that the function of stabilizing the natural tooth is achieved. When natural teeth bite into hard objects, the periodontal ligament can buffer and disperse stress, and uniformly disperse occlusal force in the alveolar bone, thereby preventing the natural teeth and the alveolar bone from being damaged.

Referring to fig. 4, in the prior art, the screw-shaped implant 91 is first implanted into the alveolar bone 92, and after the implant 91 is firmly combined with the alveolar bone 92, the artificial tooth root is formed, and then the artificial tooth 93 is installed on the metal implant. The artificial tooth 93 used for the artificial implant comprises an abutment 931 and a crown 932, and the crown 932 is fixed on the implant 91 through the abutment 931.

However, since both the artificial tooth 93 and the implant 91 after the artificial tooth implantation are made of hard materials and lack of cushioning effect, when the artificial tooth 93 bites into a hard object, the force applied to the crown 932 is transmitted to the alveolar bone 92 through the abutment 931 and the implant 91 without cushioning, and the force may be concentrated on the local alveolar bone 92, so that the conventional artificial tooth 93 may cause discomfort to the user during biting and may damage the artificial tooth 93 and the alveolar bone 92 during biting into a hard object.

Therefore, the prior art dental prosthesis for artificial tooth implantation needs to be improved.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned disadvantages and drawbacks of the prior art, the present invention provides a dental prosthesis for artificial tooth implantation to improve the comfort of use and to prevent the dental prosthesis and the alveolar bone from being damaged when biting a hard object.

In order to achieve the above object, the present invention provides a dental prosthesis for artificial tooth implantation, which is used for connecting an implant, the dental prosthesis comprising: the abutment tooth is provided with an implant body end which is used for connecting the dental implant body; a crown that indirectly connects the abutment: the buffer layer is clamped between the dental crown and the abutment, and the hardness of the buffer layer is lower than that of the dental crown and that of the abutment.

Furthermore, the artificial tooth for artificial tooth implantation is characterized in that the buffer layer is made of gold.

Further, the artificial tooth for artificial tooth implantation, wherein a side surface of the crown facing the abutment tooth defines a connection surface, and a connection groove is concavely formed on the connection surface; the buffer layer is attached to the groove wall and the groove bottom of the connecting groove; the connecting groove of the dental crown is sleeved outside the abutment tooth through the buffer layer.

Further, the dental prosthesis for artificial tooth implantation, wherein the buffer layer is further attached to the connection surface of the crown; the abutment tooth has a ring flange; the connection surface of the crown abuts against the annular flange of the abutment through the cushioning layer.

Further, the artificial tooth for artificial tooth implantation, wherein a side surface of the crown facing the abutment tooth defines a connection surface, and a connection groove is concavely formed on the connection surface; the buffer layer is attached to the outer surface of the abutment tooth; the connecting groove of the dental crown is sleeved outside the abutment tooth through the buffer layer.

Further, the dental prosthesis for artificial tooth implantation, wherein the abutment tooth has a ring flange; the cushioning layer is further attached to the ring flange; the connection surface of the crown abuts against the annular flange of the abutment through the cushioning layer.

The utility model has the advantages that a buffer layer is further arranged between the abutment tooth and the dental crown of the false tooth, and the hardness of the buffer layer is lower than that of the abutment tooth and the dental crown. When the artificial tooth is occluded, the buffer layer can exert the effect similar to the periodontal ligament, namely, the buffer layer can buffer the force born by the tooth crown during occlusion and evenly distribute the force to the alveolar bone, thereby the buffer layer can improve the comfort level of the artificial tooth during use and can prevent the artificial tooth and the alveolar bone from being damaged when biting hard objects.

Drawings

Fig. 1 is a cross-sectional view of a first embodiment of a dental prosthesis for artificial tooth implantation of the present invention, showing that the dental prosthesis is fixed to an alveolar bone through an implant.

Figure 2 is a cut-away exploded view of a first embodiment of the dental prosthesis of the present invention for use in an artificial tooth implant.

Figure 3 is a cut-away exploded view of a second embodiment of the dental prosthesis of the present invention for use in an artificial tooth implant.

Figure 4 is a prior art dental prosthesis for an artificial implant.

Detailed Description

The following description will be made in conjunction with the accompanying drawings and the preferred embodiments of the present invention to further illustrate the technical means adopted to achieve the objects of the present invention.

Referring to fig. 1 and 2, the artificial tooth of the present invention is used for connecting and fixing to an implant 91, and the implant 91 is fixed to an alveolar bone 92 of a patient by external screw-inserting. The dental prosthesis includes an abutment 10, a crown 20 and a cushioning layer 30, and in this embodiment, a fixing bolt 40.

The opposite ends of the abutment 10 are respectively an implant end 11 and a crown end 12, the implant end 11 is connected to the implant 91, and the crown end 12 protrudes out of the implant 91. In this embodiment, the implant end 11 of the abutment 10 is inserted into a fixing groove 911 of the dental implant 91, and the fixing bolt 40 is inserted through the abutment 10 and screwed to the dental implant 91, thereby fixing the abutment 10 to the dental implant 91. In this embodiment, the abutment 10 has an annular flange 13 between the implant end 11 and the crown end 12.

The crown 20 is indirectly connected to the abutment 10, that is, although the crown 20 is connected to the abutment 10, the crown 20 does not directly contact the abutment 10. A side of the crown 20 facing the abutment 10 defines a connection surface 21, and a connection groove 22 (shown in FIG. 2) is formed on the connection surface 21.

The cushioning layer 30 is interposed between the crown 20 and the abutment 10, that is, the crown 20 is connected to the abutment 10 through the cushioning layer 30. The cushioning layer 30 has a hardness lower than that of the crown 20 and that of the abutment 10, thereby cushioning and dispersing the force transmitted from the crown 20 to the abutment 10. The material of the buffer layer 30 is preferably gold, and specifically gold with a purity greater than 90%, so that the buffer and dispersing effect similar to that of natural periodontal ligament can be achieved by the high toughness, high ductility and good conductivity of gold.

Specifically, the buffer layer 30 is attached to the groove walls and the groove bottoms of the coupling grooves 22, and is also attached to the connection surface 21 of the crown 20. The coupling groove 22 of the crown 20 is sleeved outside the abutment 10 by the cushioning layer 30, and the coupling surface 21 of the crown 20 abuts against the annular flange 13 of the abutment 10 by the cushioning layer 30.

Referring to fig. 3, a second embodiment of the present invention is substantially the same as the first embodiment, except that the cushioning layer 30A is attached to the outer surface of the abutment 10A, the outer surface including the annular flange 13A of the abutment 10A, so that the cushioning layer 30A also cushions and disperses the force transmitted from the crown 20A to the abutment 10A.

To sum up, the utility model further provides a buffer layer 30 between the abutment 10 and the crown 20 of the artificial tooth, and the hardness of the buffer layer 30 is lower than the hardness of the abutment 10 and the crown 20. When the dental prosthesis is engaged, the cushioning layer 30 can exert an effect similar to that of the periodontal ligament, i.e., cushioning the force applied to the crown 20 at the time of engagement and evenly distributing the force to the alveolar bone 92, whereby the cushioning layer 30 can improve the comfort of use of the dental prosthesis and prevent the dental prosthesis and the alveolar bone 92 from being damaged when biting into a hard object.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above embodiments, but not to limit the present invention, any person of ordinary skill in the art can make various changes or modifications within the scope of the technical solution of the present invention without departing from the scope of the present invention.

Claims (6)

1. A dental prosthesis for use in an artificial implant for connection to an implant, the dental prosthesis comprising:

the abutment tooth is provided with an implant body end which is used for connecting the dental implant body;

a crown that indirectly connects the abutment:

the buffer layer is clamped between the dental crown and the abutment, and the hardness of the buffer layer is lower than that of the dental crown and that of the abutment.

2. The dental prosthesis of claim 1, wherein the cushioning layer is made of gold.

3. The dental prosthesis for artificial tooth implantation according to claim 1 or 2,

one side surface of the dental crown facing the abutment tooth is defined as a connecting surface, and a connecting groove is concavely formed on the connecting surface;

the buffer layer is attached to the groove wall and the groove bottom of the connecting groove;

the connecting groove of the dental crown is sleeved outside the abutment tooth through the buffer layer.

4. The dental prosthesis for artificial tooth implantation according to claim 3,

the cushioning layer is further attached to the connection surface of the crown;

the abutment tooth has a ring flange;

the connection surface of the crown abuts against the annular flange of the abutment through the cushioning layer.

5. The dental prosthesis for artificial tooth implantation according to claim 1 or 2,

one side surface of the dental crown facing the abutment tooth is defined as a connecting surface, and a connecting groove is concavely formed on the connecting surface;

the buffer layer is attached to the outer surface of the abutment tooth;

the connecting groove of the dental crown is sleeved outside the abutment tooth through the buffer layer.

6. The dental prosthesis for artificial tooth implantation according to claim 5,

the abutment tooth has a ring flange;

the cushioning layer is further attached to the ring flange;

the connection surface of the crown abuts against the annular flange of the abutment through the cushioning layer.

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