CN206058727U - A teaching model of microscopic root apex surgery on posterior teeth - Google Patents

Abstract

The utility model discloses a teaching model of microscopic apical surgery of posterior teeth, which is convenient for demonstration of apical surgery; enables students to understand more intuitively and clearly the process of microscopic apical surgery, the anatomical structure of relevant parts and the The requirements of the final completion can improve the quality of clinical teaching; this model has a simple structure, exquisite design, good explanation and simulation effects, and can simulate multiple steps of apical surgery on a single model, which is helpful to improve stomatology students' understanding of the obvious Understanding of the Micro-Apical Surgical Procedure.

Description

A teaching model of microscopic root apex surgery on posterior teeth

technical field

The utility model belongs to a medical teaching appliance, which relates to a teaching model of posterior tooth microscopic apex surgery.

Background technique

Physical teaching aids are important auxiliary tools in the teaching of medical theory and practice, and are widely used in all aspects of medical teaching. Microscopic apical surgery is a new treatment technique introduced in recent years and gradually developed in my country. It has a huge patient population and has a broad application prospect. At present, the teaching of microscopic apical surgery in China is still in its infancy, and the design and use of teaching models are still blank, which has a great impact on the teaching effect of apical surgery, and is not conducive to the standardization of teaching of this technique. Affect the promotion of this technology.

Contents of the invention

Aiming at the problems existing in the prior art, the purpose of this utility model is to provide a teaching model of microscopic apical surgery of posterior teeth. Teaching Quality.

In order to achieve the above object, the utility model adopts the following technical solutions:

A teaching model of microscopic apical surgery of posterior teeth, including multiple simulated crowns of posterior teeth, multiple simulated root canals and simulated alveolar bone, the simulated crowns of posterior teeth are connected with simulated root canals; the simulated alveolar bone is equipped with Multiple strip-shaped holes, the simulated root canal extends into the strip-shaped holes; the simulated alveolar bone includes external alveolar bone and internal alveolar bone, and multiple strip-shaped grooves are set on the external alveolar bone and internal alveolar bone. The strip groove on the external alveolar bone and the strip groove on the internal alveolar bone are combined to form a strip hole; the external alveolar bone and the internal alveolar bone are flexibly connected;

The inner alveolar bone is provided with a strip-shaped installation groove along its length direction, and a tube body for simulating the mandibular nerve canal is installed in the strip-shaped installation groove, and one end of the tube body passes through the outer alveolar bone.

Specifically, the plurality of simulated crowns of posterior teeth include two simulated crowns of premolars and two simulated crowns of posterior molars, and the plurality of simulated root canals include two simulated root canals of premolars and two simulated crowns of posterior molars. The root canal; the simulated root canal of the premolars has a conical structure, and the simulated root canal of the posterior molars includes the first divided root canal and the second divided root canal.

Further, posts and gutta-percha are sequentially arranged in the first divided root canal along its length direction.

Specifically, the first divided root canal includes a root canal body, and an end of the root canal body is movably provided with an apex.

Specifically, the root tip is connected to the root canal body through magnets.

Specifically, the gutta-percha in the root canal body includes a fixed gutta-percha and a reversible gutta-percha, the reversible gutta-percha is movably connected to the inner wall of the root canal body, and the front and back of the reversible gutta-percha have different colors.

Further, the surface activity of the alveolar bone is provided with simulated gums.

Specifically, the simulated gingiva is connected to the alveolar bone through Velcro.

Further, the outer alveolar bone is provided with a first round hole, the inner alveolar bone is provided with a groove, and the groove is facing the first round hole; the apex is located in the groove.

Compared with the prior art, the utility model has the following technical effects: during the teaching process, the external alveolar bone can be easily separated from the internal alveolar bone, thereby exposing the simulated root canal, which is convenient for demonstrating posterior root apex surgery; Students can more intuitively and clearly understand the process of microscopic apical surgery, the anatomical structure of relevant parts and the requirements for final completion, and improve the quality of clinical teaching; this model is simple in structure, exquisite in design, and has good explanation and simulation effects. Multiple steps of posterior apical surgery can be simulated on a single model, helping to improve dental students' understanding of the microscopic apical surgery process.

The scheme of the present utility model is further explained and described in detail in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the overall structural representation of the utility model;

Figure 2 is a schematic diagram of simulated gingiva opening;

Fig. 3 is a schematic diagram of external alveolar bone and internal alveolar bone disassembly;

Fig. 4 is a schematic diagram of the structure of the first divided root canal;

Fig. 5 is a schematic diagram of the separation of the root tip and the root canal body;

Fig. 6 is a schematic diagram of the separation of the reversible gutta-percha from the root canal body;

The symbols in the figure represent: 1—simulated crown of posterior teeth, 1-1—simulated crown of premolars, 1-2—simulated crown of posterior molars, 2—simulated root canal, 2-1—simulated root canal of premolars, 2-2—rear molar simulated root canal, 3—simulated alveolar bone, 3-1—external alveolar bone, 3-2—internal alveolar bone, 4—strip hole, 5—first root canal, 5 -1—main body of root canal, 5-2—root tip, 6—second root canal, 7—post, 8—gutella, 8-1—fixed gutta percha, 8-2—reversible gutta percha, 9— Simulation gum, 10—velcro, 11—first round hole, 12—groove, 13—strip mounting groove, 14—tube body, 15—second round hole.

detailed description

According to the above-mentioned technical scheme, referring to Fig. 1 and 2, the teaching model of microscopic apical surgery of posterior teeth of the present invention includes a plurality of simulated crowns 1 of posterior teeth, a plurality of simulated root canals 2 and simulated alveolar bone 3. The simulated tooth crown 1 is connected to the simulated root canal 2; the simulated alveolar bone 3 is provided with a plurality of strip holes 4, and the simulated root canal 2 extends into the strip holes 4; the simulated alveolar bone 3 includes the external alveolar bone 3- 1 and the inner alveolar bone 3-2, the outer alveolar bone 3-1 and the inner alveolar bone 3-2 are provided with a plurality of strip-shaped grooves, the strip-shaped grooves on the outer alveolar bone 3-1 and the inner teeth The strip-shaped grooves on the alveolar bone 3-2 are combined to form a strip-shaped hole 4; the outer alveolar bone 3-1 and the inner alveolar bone 3-2 are flexibly connected.

In the teaching model of root apex surgery of the present utility model, there are four simulated crowns 1 for posterior teeth, including two simulated crowns 1-1 for premolars and two simulated crowns 1-2 for posterior molars, and simulated crowns for premolars. The shapes of the simulated crowns 1-1 and 1-2 of the posterior molars are the same as those of the real premolars and posterior molars, respectively.

There are 4 simulated root canals 2 correspondingly, including two simulated root canals 2-1 of premolars and two simulated root canals 2-2 of posterior molars. With the same tapered structure, the simulated root canal 2-2 of the posterior molar includes the first divided root canal 5 and the second divided root canal 6; the shape of the alveolar bone 3 is the same as that of the real alveolar bone in the mandibular posterior region.

During the teaching process, the external alveolar bone 3-1 can be conveniently separated from the internal alveolar bone 3-2, thereby exposing the simulated root canal 2, which facilitates demonstration of apical surgery.

Referring to FIG. 4 , in order to show the internal structure of the simulated root canal 2 more clearly, the first sub-root canal 5 is provided with posts 7 and gutta-percha 8 sequentially along its length direction. After the external alveolar bone 3-1 is separated from the internal alveolar bone 3-2, the internal structure of the first divided root canal 5 can be seen.

In order to realize the teaching of apexectomy, the first divided root canal 5 includes a root canal body 5-1, and the end of the root canal body 5-1 is movable to be provided with an apex 5-2, and the end of the apex 5-2 The height is 3 mm; the apex 5-2 is connected with the apex main body 5-1 through a magnet. One end of the pile 7 extends into the imitated crown 1-2 of the molar, the other end of the pile 7 is connected to one end of the gutta-percha 8, and the other end of the gutta-percha 8 extends to the apex 5-2. Apexectomy is simulated by separating the root tip 5-2 from the root canal body 5-1.

Referring to Fig. 5 and Fig. 6, in order to show the process of removing the gutta-percha and filling it with MAT, the gutta-percha in the root canal body 5-1 includes a fixed gutta-percha 8-1 and a reversible gutta-percha 8-1. 2. The reversible gutta-percha 8-2 is flexibly connected to the inner wall of the root canal body 5-1. Optionally, the reversible gutta-percha 8-2 is connected to the inner wall of the root canal body 5-1 through magnets; the reversible gutta-percha 8 -2 has different colors for the front and back sides. The height of the reversible teether 8-2 is 3mm. When the reversible gutta-percha 8-2 is turned over, the reverse side of the reversible gutta-percha 8-2 is white, showing the effect of filling with MAT.

In order to simulate the flap range of apical surgery, the surface of the alveolar bone 3 is provided with simulated gums 9; the simulated gums 9 and the alveolar bone 3 are connected by Velcro 10, which facilitates the design and suturing process of simulated surgical flaps . The simulated gum 9 adopts soft materials, such as silica gel, to simulate the color and texture of real gums; a certain area on the simulated gum 9 has a darker color, which is used to simulate swelling. The simulated gingiva 9 is provided with a second round hole 15 for simulating sinus opening.

The outer alveolar bone 3-1 is provided with a first round hole 11, and the inner alveolar bone 3-2 is provided with a groove 12, the groove 12 is facing the first round hole 11; the apex 5 -2 is located in groove 12. The first circular hole 11 and the groove 12 are used to simulate a circular bone defect area.

The inner alveolar bone 3-2 is provided with a strip-shaped installation groove 13 along its length direction, and a tube body 14 for simulating the mandibular nerve tube is installed in the strip-shaped installation groove 13, and one end of the tube body 14 passes through the outer Alveolar bone 3-1.

The utility model enables students to more intuitively and clearly understand the procedure of microscopic root tip surgery, the anatomical structure of related parts and the requirements for final completion, and improves the quality of clinical teaching.

Claims (9)

1. A teaching model of microscopic apical surgery of posterior teeth, characterized in that it comprises a plurality of posterior tooth simulated crowns (1), a plurality of simulated root canals (2) and simulated alveolar bone (3), the posterior teeth The simulated tooth crown (1) is connected to the simulated root canal (2); the simulated alveolar bone (3) is provided with a plurality of strip holes (4), and the simulated root canal (2) extends into the strip hole (4); The alveolar bone (3) includes an external alveolar bone (3-1) and an internal alveolar bone (3-2), and both the external alveolar bone (3-1) and the internal alveolar bone (3-2) are provided with A plurality of strip-shaped grooves, the strip-shaped grooves on the external alveolar bone (3-1) and the strip-shaped grooves on the internal alveolar bone (3-2) form a strip-shaped hole (4); the external alveolar bone (3-2) -1) is flexibly connected with the internal alveolar bone (3-2); The inner alveolar bone (3-2) is provided with a strip-shaped installation groove (13) along its length direction, and a tube body (14) for simulating the mandibular nerve tube is installed in the strip-shaped installation groove (13). One end of (14) passes through the external alveolar bone (3-1). 2. the posterior tooth microscopic root apical surgery teaching model as claimed in claim 1, is characterized in that, described multiple posterior tooth simulated crowns (1) comprise two premolar simulated crowns (1-1) and Two simulated dental crowns (1-2) of posterior molars, the plurality of simulated root canals (2) including two simulated root canals of premolars (2-1) and two simulated root canals of posterior molars (2-2); The simulated root canal (2-1) of the premolar has a conical structure, and the simulated root canal (2-2) of the posterior molar includes a first divided root canal (5) and a second divided root canal (6). 3. the posterior tooth microscopic apical surgery teaching model as claimed in claim 2, is characterized in that, in the described first sub-root canal (5), stake (7) and gutta-percha (7) and gutta-percha ( 8). 4. the posterior tooth microscopic apical surgery teaching model as claimed in claim 3, is characterized in that, described first divided root canal (5) comprises root canal main body (5-1), and root canal main body (5-1) 1) is provided with an apex (5-2) at the movable end. 5. The teaching model of microscopic apical surgery of posterior teeth according to claim 4, characterized in that, the apex (5-2) is connected to the root canal body (5-1) through a magnet. 6. The posterior tooth microscopic apical surgery teaching model as claimed in claim 4, characterized in that, the gutta-percha in the root canal body (5-1) includes a fixed gutta-percha (8-1) and a reversible The gutta-percha (8-2), the reversible gutta-percha (8-2) is movably connected to the inner wall of the root canal main body (5-1), and the front and back sides of the reversible gutta-percha (8-2) have different colors. 7. The teaching model of posterior tooth microscopic apical surgery according to claim 1, characterized in that, the surface of the alveolar bone (3) is provided with simulated gingiva (9). 8. The teaching model of microscopic apical surgery of posterior teeth according to claim 7, characterized in that, the simulated gingiva (9) is connected to the alveolar bone (3) through a Velcro (10). 9. the posterior tooth microscopic apical surgery teaching model as claimed in claim 4, is characterized in that, the first round hole (11) is arranged on the described external alveolar bone (3-1), and the internal tooth A groove (12) is arranged on the groove bone (3-2), and the groove (12) is facing the first circular hole (11); the apex (5-2) is located in the groove (12).