CN211049657U - Customized polyether-ether-ketone removable partial denture bracket - Google Patents

Abstract

The utility model discloses a customized polyether ether ketone removable partial denture bracket, which comprises an abutment, a snap ring, a connector, a polyether ether ketone integrally formed with

Support, base. The width of the arm tip of the snap ring is 1.3-1.5mm, and the thickness is 0.9-1.1mm; the width of the arm body is 1.5-1.6mm, and the thickness is 1.1-1.2mm; the width of the starting part of the arm is 1.6-1.8mm, and the thickness is 1.3 ~1.4mm.

The width of the rest is 1/3 of the buccal-lingual diameter of the molar, or 1/2 of the buccal-lingual diameter of the premolar; the height is 1.3-1.6 mm; the length is 1/4 of the mesial and distal diameter of the molar, or the proximal 1/3 of the distal diameter, and the axis angle is blunt. The utility model is integrally formed, which reduces the number of patients' clinical visits and saves the time of doctors and patients.

Description

A customized polyetheretherketone removable partial denture bracket

technical field

The utility model belongs to the technical field of removable partial denture brackets, in particular to a customized polyether ether ketone removable partial denture bracket.

Background technique

Removable partial denture is a kind of missing tooth that uses the remaining natural teeth, bone tissue and the mask under the base as support, relies on the retainer and base of the removable denture for retention, and uses artificial teeth to restore the patient's missing teeth. Column repair method. The preparation of removable partial denture brackets is a key link in the preparation of removable partial dentures. At present, the main processes include casting and material reduction preparation. The casting process is complicated, and the applied materials are mostly metal materials, whose elastic modulus is much higher than that of human jaws. Bone, it is easy to cause stress shielding and cause disuse absorption of bone. Subtractive preparation is prone to waste of materials, and it is difficult to implement designs with relatively complex structures.

Utility model content

The purpose of the utility model is to provide a customized polyetheretherketone removable partial denture bracket, which is integrally formed, which reduces the number of clinical visits of patients and saves the time of doctors and patients.

支托、基托。The technical scheme adopted by the utility model is that a customized polyetheretherketone removable partial denture bracket comprises an abutment, a snap ring, a connector, a polyetheretherketone integrally formed with polyetheretherketone,

Support, base.

The utility model is characterized in that:

The connecting body is composed of anterior palatal rod, lateral palatal rod a, posterior palatal rod, and lateral palatal rod b that are connected and closed in sequence; the distance between the posterior edge of the anterior palatal rod and the anterior edge of the posterior palatal rod is more than 15mm; the connecting body The surface is textured, and the texture is set to mimic the human palatal folds, which are used to store saliva.

The thickness of the anterior palatal rod is 1 mm and the width is 6-8 mm.

The thickness of the posterior palatal rod is 1.5-2 mm and the width is 3-4 mm.

The thickness of the lateral palatal rod a and the lateral palatal rod b is 1-1.5 mm, and the width is 3-3.5 mm.

The connecting body is the mandibular lingual rod; the thickness is 2-3mm, the width is 3-4mm; the edge is round and blunt.

The connecting body is a palatal plate; the thickness is 1-2.5 mm; the surface is provided with texture, and the texture is set by imitating the human palatal fold, and is used for storing saliva.

The width of the arm tip of the snap ring is 1.3-1.5mm, and the thickness is 0.9-1.1mm; the width of the arm body is 1.5-1.6mm, and the thickness is 1.1-1.2mm; the width of the starting part of the arm is 1.6-1.8mm, and the thickness is 1.3 ~1.4mm.

支托的宽度为磨牙颊舌径的1/3，或为前磨牙颊舌径的1/2；高度为1.3～1.6mm；长度为磨牙近远中径的1/4，或为前磨牙近远中径的1/3，轴线角圆钝。

The width of the rest is 1/3 of the buccal-lingual diameter of the molar, or 1/2 of the buccal-lingual diameter of the premolar; the height is 1.3-1.6 mm; the length is 1/4 of the mesial and distal diameter of the molar, or the proximal 1/3 of the distal diameter, and the axis angle is blunt.

The beneficial effects of the utility model are: the denture bracket is designed according to the digital model of the oral cavity or the gypsum model, and the 3D printing is integrally formed, which simplifies the production process compared with the traditional process, saves time, energy and materials, and is convenient for patients. Said to reduce the number of visits. And polyetheretherketone has excellent physical and chemical properties, biomechanical properties, biocompatibility, and natural radiation transmittance. Compared with metal materials, its color is easily accepted by patients, reducing the weight of dentures, and its elastic modulus is comparable to that of human cortex. The bones are closer together, which can effectively reduce bone resorption and bone atrophy caused by stress shielding. Patients can choose appropriate crowns (such as porcelain teeth, all-ceramic teeth) according to their own economic conditions to meet the different needs of different patients.

Description of drawings

Fig. 1 is the structural representation that the connecting plate in a kind of customized polyetheretherketone removable partial denture bracket of the present invention is a palatal rod;

2 is a schematic structural diagram of a mandibular lingual rod in a customized polyetheretherketone removable partial denture bracket of the present invention;

Fig. 3 is a schematic structural diagram of the palatal plate in a customized polyetheretherketone removable partial denture bracket of the present invention.

支托，5.基托。In the figure, 1. Abutment, 2. Snap ring, 3. Connector, 4.

Support, 5. Base.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

支托4、基托5。The utility model is a customized polyether ether ketone removable partial denture bracket, which comprises an abutment 1 integrally formed with polyether ether ketone, a snap ring 2, a connecting body 3,

Support 4, base 5.

As shown in Fig. 1, the connecting body 3 is composed of anterior palatal rod, lateral palatal rod a, posterior palatal rod, and lateral palatal rod b which are connected and closed in sequence; The distance is more than 15mm; the surface of the connecting body 3 is provided with a texture, and the texture is set by imitating the human palatal fold, and is used for storing saliva.

The thickness of the anterior palatal rod is 1 mm and the width is 6-8 mm.

The thickness of the posterior palatal rod is 1.5-2 mm and the width is 3-4 mm.

The thickness of the lateral palatal rod a and the lateral palatal rod b is 1-1.5 mm, and the width is 3-3.5 mm.

As shown in Figure 2, the connecting body 3 is a mandibular lingual rod; the thickness is 2-3 mm, the width is 3-4 mm, and the edge is round and blunt.

As shown in FIG. 3 , the connecting bodies 3 are all palatal plates; the thickness is 1-2.5 mm; the surface is provided with a texture, and the texture is set by imitating the human palatal fold, and is used for storing saliva.

The width of the arm tip of the snap ring 2 is 1.3-1.5mm, and the thickness is 0.9-1.1mm; the width of the arm body is 1.5-1.6mm, and the thickness is 1.1-1.2mm; the width of the starting part of the arm is 1.6-1.8mm, and the thickness is 1.3～1.4mm.

支托4的宽度为磨牙颊舌径的1/3，或为前磨牙颊舌径的1/2；高度为1.3～1.6mm；长度为磨牙近远中径的1/4，或为前磨牙近远中径的1/3，轴线角圆钝。

The width of the rest 4 is 1/3 of the buccal-lingual diameter of the molar, or 1/2 of the buccal-lingual diameter of the premolar; the height is 1.3-1.6 mm; the length is 1/4 of the mesial and distal diameter of the molar, or the premolar 1/3 of the near and far medium diameter, and the axis angle is rounded and blunt.

The design method for designing the customized polyetheretherketone removable partial denture bracket of the present invention is as follows:

支托的牙体区域进行预备；预备的标准具体为，在牙体咬合面预备

支托凹；

支托凹的宽度为磨牙颊舌径的1/3，或为前磨牙颊舌径的1/2；

支托凹的高度为1.3～1.6mm；

支托凹的长度为磨牙近远中径的1/4，或为前磨牙近远中径的1/3；轴线角圆钝；Step 1. For the need to place

The tooth area of the rest is prepared; the standard of preparation is specifically, preparation on the occlusal surface of the tooth

support concave;

The width of the recess is 1/3 of the buccal-lingual diameter of molars, or 1/2 of the buccal-lingual diameter of premolars;

The height of the support concave is 1.3-1.6mm;

The length of the resting concave is 1/4 of the mesial and distal diameter of molars, or 1/3 of the mesial and distal diameter of premolars; the axis angle is rounded and blunt;

Step 2. Use 3Shape software to perform oral scanning on the edentulous jaw of the patient to obtain oral data of the patient's edentulous jaw; or, prepare a gypsum model according to the prepared edentulous jaw, scan the gypsum model, and obtain the gypsum model data, and the output is: STL format file;

Step 3. Import the STL format file of Step 2 into the 3Shape software to design the removable partial denture bracket;

Step 3 is implemented according to the following steps:

Step 3.1. Fill the undercut area on the model in STL format;

Step 3.2. Arrange the abutment teeth according to the missing tooth area, and the position of the abutment teeth corresponds to the position of the missing teeth; reserve space for the restoration crown according to the occlusion of the upper and lower jaws. If the space is insufficient, molar the abutment teeth to make the restoration crown space sufficient;

Step 3.3. Design a base on the surface of the edentulous area; the base extends to the palatal/lingual side; the maxillary free end covers the maxillary tubercle and extends to the middle of the pterygomaxillary notch; the posterior edge of the mandibular free end covers the back of the molars The front 1/3 to 1/2 of the pad, and fully stretched in the buccal shed area;

Step 3.4, design the connector according to the size of the missing tooth area; the bases on both sides are connected by the connector; the shape of the connector is adapted to the shape of the surface of the model, and the tissue surface fits the surface of the model;

Step 3.5, design a snap ring according to the shape of the patient's natural teeth; the shape of the snap ring is adapted to the buccal-lingual surface of the patient's natural teeth;

支托凹设计

支托；

支托与

支托凹形状、大小相适应；

支托与

支托凹相密合，呈球凹接触关系；Step 3.6, according to the prepared

Support concave design

support;

Support with

The shape and size of the support concave are suitable;

Support with

The supporting concave phase is in close contact, showing a spherical concave contact relationship;

Step 3.7. Finish the bracket to make the edge round and blunt.

The advantages of the customized polyetheretherketone removable partial denture bracket of the utility model are: the edentulous denture bracket is designed according to the digital model of the oral cavity or the gypsum model, and the 3D printing is integrally formed, which simplifies the production process compared with the traditional process. , saving time, energy and materials, and reducing the number of visits for patients. And polyetheretherketone has excellent physical and chemical properties, biomechanical properties, biocompatibility, and natural radiation transmittance. Compared with metal materials, its color is easily accepted by patients, reducing the weight of dentures, and its elastic modulus is comparable to that of human cortex. The bones are closer together, which can effectively reduce bone resorption and bone atrophy caused by stress shielding. Patients can choose appropriate crowns (such as porcelain teeth, all-ceramic teeth) according to their own economic conditions to meet the different needs of different patients.

Claims (9)

1. A customized polyetheretherketone removable partial denture support, characterized in that: comprising an abutment (1), a snap ring (2), a connector (3), a polyetheretherketone integrally formed by adopting polyetheretherketone,

Support (4), base (5). 2. The customized polyetheretherketone removable partial denture bracket according to claim 1, characterized in that: the connecting body (3) consists of anterior palatal rod, lateral palatal rod a, and posterior palatal rod that are connected and closed in sequence and the lateral palatal rod b; the distance between the posterior edge of the anterior palatal rod and the anterior edge of the posterior palatal rod is more than 15mm; the surface of the connecting body (3) is provided with texture, and the texture is set to imitate the human palatal fold and is used to store saliva . 3 . The customized polyetheretherketone removable partial denture bracket according to claim 2 , wherein the anterior palatal rod has a thickness of 1 mm and a width of 6-8 mm. 4 . 4 . The customized polyetheretherketone removable partial denture bracket according to claim 2 , wherein the posterior palatal rod has a thickness of 1.5-2 mm and a width of 3-4 mm. 5 . 5. The customized polyetheretherketone removable partial denture bracket according to claim 2, wherein the lateral palatal rod a and the lateral palatal rod b have a thickness of 1-1.5 mm and a width of 3-3.5 mm . The customized polyetheretherketone removable partial denture bracket according to claim 1, characterized in that: the connecting body (3) is a mandibular lingual rod; the thickness is 2-3 mm, the width is 3-4 mm; blunt. The customized polyetheretherketone removable partial denture bracket according to claim 1, characterized in that: the connecting body (3) is a palatal plate; the thickness is 1-2.5mm; Human palatal folds are set up to store saliva. 8. The customized polyetheretherketone removable partial denture bracket according to claim 1, wherein the arm tip of the snap ring (2) has a width of 1.3-1.5 mm and a thickness of 0.9-1.1 mm; The width of the body part is 1.5-1.6 mm, and the thickness is 1.1-1.2 mm; the width of the starting part of the arm is 1.6-1.8 mm, and the thickness is 1.3-1.4 mm. 9. The customized polyetheretherketone removable partial denture bracket according to claim 1, characterized in that: the

The width of the rest (4) is 1/3 of the buccal-lingual diameter of the molars, or 1/2 of the buccal-lingual diameter of the premolars; the height is 1.3-1.6 mm; the length is 1/4 of the mesial and distal diameters of the molars, or 1/3 of the mesial and distal diameter of the premolars, and the axis angle is rounded and blunt.

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