阅读说明：本技术 一种用于活动义齿的氧化锆人工牙及其制作方法 (Zirconia artificial tooth for removable denture and manufacturing method thereof ) 是由 赖锐 张勤 于 2021-08-31 设计创作，主要内容包括：本发明公开了一种用于活动义齿的氧化锆人工牙,人工牙内侧设置有固位结构,所述固位结构的表面设置有若干凸起,所述人工牙包括有舌侧面和唇侧面,所述的固位结构呈内凹梯形结构,所述的舌侧面设置有舌侧固位形,所述舌侧固位形是在人工牙舌侧面向内凹的半圆形；所述的固位结构为内凹固位形,所述内凹固位形的舌侧面和颊面与树脂的连接处呈20-30的弧形凹面,所述内凹固位形外侧设置有舌侧固位形。本发明在舌侧面和唇侧面与树脂连接处呈20-30度的弧形凹面,便于形成自锁,增加机械固位,另外舌侧面和颊侧面与树脂连接处呈20-30度的弧形凹面,使内外侧形成鸠尾形,便于形成自锁,有效提高了机械固位,极大的促进了牙科患者的就诊体验。(The invention discloses a zirconia artificial tooth for a removable denture, wherein a retention structure is arranged on the inner side of the artificial tooth, a plurality of bulges are arranged on the surface of the retention structure, the artificial tooth comprises a tongue side surface and a lip side surface, the retention structure is in an inwards concave trapezoidal structure, a tongue side retention shape is arranged on the tongue side surface, and the tongue side retention shape is an inwards concave semicircular shape on the tongue side surface of the artificial tooth; the fixing structure is in an inward concave fixing shape, the joint of the tongue side surface and the cheek surface of the inward concave fixing shape and resin is an arc concave surface of 20-30, and the tongue side fixing shape is arranged on the outer side of the inward concave fixing shape. The joints of the lingual side and the labial side and the resin are provided with 20-30 degrees of arc concave surfaces, so that self-locking is conveniently formed, mechanical retention is increased, and in addition, the joints of the lingual side and the buccal side and the resin are provided with 20-30 degrees of arc concave surfaces, so that the inner side and the outer side form a dovetail shape, self-locking is conveniently formed, mechanical retention is effectively improved, and the clinic experience of dental patients is greatly promoted.)

1. A zirconia artificial tooth for removable denture, characterized in that: the artificial teeth are characterized in that a retention structure is arranged on the inner side of each artificial tooth, a plurality of bulges are arranged on the surface of each retention structure, and each artificial tooth comprises a tongue side surface and a lip side surface.

2. The zirconia artificial tooth for a removable denture as claimed in claim 1, wherein: the retention structure is trapezoidal.

3. The zirconia artificial tooth for a removable denture as claimed in claim 1, wherein: the lingual side is provided with lingual side fixing shapes, and the lingual side fixing shapes are semicircular inwards concave on the lingual side of the artificial tooth.

4. A zirconia artificial tooth for a removable denture as claimed in claim 3, wherein: the fixing structure is in an inward concave fixing shape, the joint of the tongue side surface and the cheek surface of the inward concave fixing shape and resin is an arc concave surface with 20-30 degrees, and the outer side of the inward concave fixing shape is provided with a tongue side fixing shape.

5. A zirconia artificial tooth for a removable denture as claimed in any one of claims 1 or 3, wherein: the joint of the lingual side and the labial side of the artificial tooth and the resin is an arc concave surface with an angle of 20-30 degrees.

6. The zirconia artificial tooth for removable denture as claimed in any one of claims 3 or 4, wherein: the lingual side retention shape is a concave structure arranged at a position of 5 mm on the lingual side neck, the concave structure is a semicircular groove, and the depth of the concave structure is 2 mm.

7. The zirconia artificial tooth for a removable denture as claimed in claim 1, wherein: the artificial tooth is made of zirconia materials.

8. A method for manufacturing a zirconia artificial tooth for an active denture is characterized by comprising the following manufacturing steps:

s1: selection of abutment and data acquisition: checking the condition of natural teeth and mucosal tissues in the oral cavity of a patient, reasonably selecting abutment teeth according to design requirements, and then collecting a digital impression;

s2: receiving data for typesetting, paying attention to the design of the support rod to avoid cutting failure or defects, and generating CAM data to finish cutting;

s3: and (6) grinding and polishing.

Technical Field

The invention relates to the technical field of dentistry, in particular to a zirconia artificial tooth for an active denture.

Background

Removable denture or fixed denture repair is the most common repair scheme, and doctors can select removable dentures or fixed dentures to repair defective or missing natural teeth according to the conditions in the mouths of patients, particularly in the repair scheme of old patients, removable dentures are often adopted when more or all natural teeth are missing. The removable denture is a denture which can be automatically taken and worn by a patient and is divided into a removable complete denture and a removable partial denture, the removable complete denture is suitable for the patient with all the lost natural teeth and consists of an artificial tooth and a base, the denture is adsorbed on the upper and lower jaw alveolar ridges by means of the adsorption force and the atmospheric pressure generated by the close fit and the edge sealing of the denture base and the non-dentognathic mucosa tissue, so that the defective tissue, the facial appearance, the chewing and the pronunciation functions of the patient are recovered, and the mucosa tissue and the bone tissue covered by the denture base bear the occlusion pressure of the denture. The removable partial denture is suitable for patients with partial natural tooth loss and consists of four parts, namely a retainer retained on an abutment, an artificial tooth for repairing the dentition defect, an abutment for fixing the artificial tooth and a connector for connecting the abutment and the retainer. The false tooth is mainly kept in the position of the false tooth in the dentition through a fixing device such as a snap ring fixed on the residual natural tooth and an abutment, and the anatomical morphology and the physiological function of the lost tooth and the peripheral defective tissue are restored by using mucosa and bone tissues covered by the residual natural tooth and the false tooth abutment as supports.

The artificial tooth is a main component of removable denture, and is also an important part for recovering the chewing function and beautifying of the patient without dental jaw. The basic purposes to be achieved by the artificial tooth are as follows: the natural appearance of individual characteristics of the patient is recovered as much as possible, and the functional requirements of chewing and pronunciation are met. There are two main categories depending on the materials used: resin teeth and porcelain teeth.

The finished artificial tooth is specially manufactured and produced by manufacturers, has different sizes, forms and colors, and is marked by different specifications and models. In actual intraoral use of a patient, the choice of artificial teeth generally depends on the condition of the patient's remaining alveolar ridge and the coordination of the upper and lower arch, taking into account texture, morphology, color, size, etc. The morphology is generally related to the body, the face type, the sex, the age, the individual quality and the like; color is coordinated with race, skin color, age, etc.; the size of the anterior teeth should be determined by the size of the patient's arch, the position of the oral line, the height of the smile line, the size of the patient's body, head and lips. The finished artificial teeth generally only have 3-5 colors and specifications of over ten types, the selection range is narrow, matched artificial teeth cannot be selected in many times, and the finished artificial teeth can only be adjusted and modified by selecting close artificial teeth in a certain range.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the following technical scheme to realize:

the artificial tooth comprises a tongue side surface and a lip side surface, wherein a fixing structure is arranged on the inner side of the artificial tooth, a plurality of bulges are arranged on the surface of the fixing structure, and the artificial tooth comprises a tongue side surface and a lip side surface.

Further, the retention structure is in a trapezoidal structure.

Furthermore, the lingual side is provided with a lingual side fixing shape which is a semi-circle inwards concave on the lingual side of the artificial tooth.

Furthermore, the retention structure is in an inward concave retention shape, the joint of the tongue side surface and the cheek surface of the inward concave retention shape and the resin is an arc concave surface with 20-30 degrees, and the outer side of the inward concave retention shape is provided with a tongue side retention shape.

Furthermore, the joint of the lingual side and the labial side of the artificial tooth and the resin is an arc concave surface with an angle of 20-30 degrees.

Further, the lingual retention shape is a concave structure arranged at a position 5 mm above the lingual neck, and the concave result is a semicircular groove with a depth of 2 mm.

Furthermore, the artificial tooth is made of zirconia materials.

The invention also comprises a method for manufacturing the zirconium oxide artificial tooth for the removable denture, which comprises the following manufacturing steps:

s1: selection of abutment and data acquisition: checking the condition of natural teeth and mucosal tissues in the oral cavity of a patient, reasonably selecting abutment teeth according to design requirements, and then collecting a digital impression;

s2: receiving data for typesetting, paying attention to the design of the support rod to avoid cutting failure or defects, and generating CAM data to finish cutting;

s3: and (6) grinding and polishing.

The invention has the beneficial effects that:

1. the invention designs an improved saddle type at the side of the artificial tooth tongue, which not only accords with the physiological shape of oral tissues, but also is beneficial to the health of gum tissues; the dental crown is designed into a hollow crown, so that the weight can be reduced, a certain fixing shape is designed at the same time, the dental crown is better combined with the plastic base, bubbles are not easily formed during glue filling, and the fixing, supporting and stabilizing effects can be better provided.

2. The invention has 20-30 degree arc concave surface at the joint of the tongue side and the lip side with the resin, which is convenient for forming self-locking and increasing mechanical retention, and in addition, the joint of the tongue side and the cheek side with the resin has 20-30 degree arc concave surface, which makes the inner side and the outer side form a dovetail shape, which is convenient for forming self-locking and effectively improves mechanical retention.

3. The zirconium oxide artificial tooth for the removable denture is better combined with the plastic base, and the phenomenon of falling off of the artificial tooth is not easy to occur; not easy to break, good surface smoothness, not easy to color, strong wear resistance and high strength.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the present invention;

fig. 3 is a perspective view of the invention.

Description of reference numerals:

1. artificial teeth, 2, lingual retention shape, 3, inward-concave retention shape, 4, retention structure.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

Example 1

The utility model provides a zirconia artificial tooth for removable denture, artificial tooth inboard is provided with the maintenance structure, the surface of maintenance structure is provided with a plurality of archs, the arch of setting can be better carries out the maintenance with artificial tooth, artificial tooth is including tongue side and lip side, the maintenance structure be the trapezoidal structure of indent, the tongue side be provided with tongue side position fixing shape, tongue side position fixing shape is at artificial tooth tongue side to the semicircle of indent, the maintenance structure be the shape of indent position fixing, tongue side and the junction of buccal surface and resin of the shape of indent position fixing are 20-30's arc concave surface, are 20-30 degrees arc concave surface at tongue side and lip side and resin junction, are convenient for form the auto-lock, increase mechanical maintenance, the shape outside of indent position fixing is provided with tongue side position fixing shape, tongue side and lip side and resin junction of artificial tooth be 20-30 degrees arc concave surface, the lingual side retention shape is a concave structure arranged at a position of 5 mm on the lingual side neck, the concave result is similar to a semicircle and the depth is 2 mm, so that the inner side and the outer side form a dovetail shape, self-locking is convenient to form, mechanical retention is effectively improved, and the artificial tooth is made of zirconium oxide.

Example 2

A method for manufacturing a zirconia artificial tooth for an active denture is characterized by comprising the following manufacturing steps:

s1: selection of abutment and data acquisition: checking the condition of natural teeth and mucosal tissues in the oral cavity of a patient, reasonably selecting abutment teeth according to design requirements, and then collecting a digital impression; before data acquisition, preparing a zirconia disc, CAD/CAM equipment, a grinding machine, a sand blasting machine, diamonds, grinding gravels and polishing paste;

s2: receiving data for typesetting, paying attention to the design of the support rod to avoid cutting failure or defects, and generating CAM data to finish cutting;

s3: grinding and polishing;

a. removing the support, and generally adopting a diamond-bonded sand vehicle needle to polish the support;

b. during polishing, the polishing needs to be careful, the polishing needs to be from coarse polishing to fine polishing, and proper force is used so as to avoid deformation;

c. the surfaces were highly polished with a polishing paste.

The invention adopts CAD/CAM design and manufacture, utilizes a personalized artificial tooth cut by zirconia, determines the shape and the color of the face, the sex and the age of a patient according to the oral cavity condition of the patient, such as the condition of the residual alveolar ridge of the patient and the coordination condition of an upper jaw arch and a lower jaw arch, designs a matched dental crown according to the size of the jaw arch of the patient, the position of an oral angle line and the height of a smile line, designs an improved saddle type on the side of the artificial tooth tongue, not only accords with the physiological shape of oral tissues, but also is beneficial to the health of gum tissues; the dental crown is designed into a hollow crown, so that the weight can be reduced, a certain fixing shape is designed at the same time, the dental crown is better combined with the plastic base, bubbles are not easily formed during glue filling, and the fixing, supporting and stabilizing effects can be better provided.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.