Teaching model for periodontal disease examination

Abstract

The utility model belongs to the technical field of periodontal disease teaching, and particularly relates to a periodontal disease examination teaching model. The model comprises an upper and lower jaw base, a tooth body and gingiva, wherein an alveolar bone is arranged on the upper and lower jaw base; a plurality of grooves are embedded in the side, close to the tooth body, of the crown of the alveolar bone to form a step-shaped structure arranged in the circumferential direction, the continuous step-shaped structure forms a periodontal bag bottom for periodontal exploration and diagnosis practice, and the distance between the table top of the periodontal bag bottom and the glazed cementum boundary of the gingiva is 1-9 mm.

Description

Technical Field

[0001] The utility model belongs to the technical field of periodontal disease teaching, and in particular relates to a periodontal disease inspection teaching model. Background Art

[0002] Periodontology is a highly practical oral medicine course. During the teaching process, a large number of teaching models are needed to simulate various periodontal lesions to assist in the explanation of teaching content. At the same time, students also need to practice on the models and train basic clinical operation skills. Among them, periodontal probing is the most important examination method in periodontal treatment, but the existing teaching models are designed as an integrated structure with relatively single functions. It is impossible to accurately simulate specialized examinations for periodontal disease, such as periodontal probing depth, looseness, and root bifurcation lesion degree. It is difficult for students to form a very intuitive impression, and they are still unable to perform standardized, fast and accurate periodontal probing after entering clinical work.

[0003] A tooth injury model with Chinese patent publication number CN209591269U and a tooth extraction model with Chinese patent publication number CN201402553Y, when simulating the periodontal probing depth inspection of patients with periodontitis, requires a probe with a tip diameter of 0.5mm to be inserted into the gingival sulcus between the gum and the tooth along the long axis of the tooth, and to probe to the bottom of the periodontal pocket after alveolar bone absorption or inflammation to measure the depth of the periodontal pocket. Generally, the probing force is about 20-25g, and the probing depth ranges from 1-14mm. For students who lack clinical experience, due to the lack of a suitable periodontal probing model, they often cannot accurately grasp the angle and depth of periodontal probing, resulting in the measurement result of the probing depth being too large or too small, thereby leading to misdiagnosis of the condition. Utility Model Content

[0004] In order to overcome the defects in the prior art, the utility model provides a periodontal disease examination teaching model. The utility model facilitates better periodontal disease examination teaching and is convenient for students to quickly master.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A periodontal disease examination teaching model comprises upper and lower jaw bases, tooth bodies and gums. Alveolar bones are arranged on the upper and lower jaw bases. A plurality of grooves are embedded on the crown side of the alveolar bones close to the tooth bodies to form a circumferentially arranged step-like structure. The continuous step-like structures form a periodontal pocket bottom for periodontal probing practice. The distance between the table of the periodontal pocket bottom and the cementoenamel junction of the gums is 1-9 mm.

[0007] Preferably, the width of the table of each step of the periodontal pocket bottom is 1 mm, and the length of the table covers the buccal and lingual surfaces of all teeth.

[0008] Preferably, the tooth body is adapted to the alveolar socket of the alveolar bone; and the gums cover the alveolar bone.

[0009] Preferably, a screw hole is provided in the alveolar socket, and the tooth body is detachably connected to the screw hole via a first screw.

[0010] Preferably, the upper and lower jaw bases are bases that can be matched with the Cava simulation head mold, and the base is fixedly connected to the Cava simulation head mold by a second screw.

[0011] Preferably, the alveolar bone includes an upper alveolar bone and a lower alveolar bone, and both the upper alveolar bone and the lower alveolar bone are composed of an anterior tooth area, a left posterior tooth area and a right posterior tooth area; a step-like structure is provided on the crown side of the upper alveolar bone close to the tooth body and the crown side of the lower alveolar bone close to the tooth body.

[0012] The advantages of the utility model are:

[0013] (1) The utility model intends to design a new multifunctional periodontal disease examination teaching model to further standardize the teaching of periodontal probing examination. The model design is as close as possible to the actual situation in the patient's mouth to improve the teaching quality of periodontal probing examination.

[0014] (2) The utility model simulates the range and severity of alveolar bone resorption in patients with periodontitis by designing the alveolar bone edge in a step-like shape, which can help students accurately perceive the position of the bottom of the periodontal pocket and the depth of the periodontal pocket, thereby forming an intuitive understanding of the probing technique, quickly mastering the technical points of periodontal probing, and shortening the learning cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model.

[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the alveolar bone of the utility model.

[0017] Figure 3 It is a partial structural schematic diagram of the upper and lower jaw bases of the utility model.

[0018] The meanings of the symbols in the figure are as follows:

[0019] 1- upper and lower jaw base, 2- tooth body, 3- gingiva, 4- alveolar bone, 5- bottom of periodontal pocket. DETAILED DESCRIPTION

[0020] like Figure 1-3 As shown, a periodontal disease examination teaching model is different from the one-piece structure design of conventional models. Instead, the teaching model is designed according to different sections of the oral cavity and can be flexibly combined.

[0021] First, the whole model replicates the oral structure at a ratio of 1:1, and is composed of upper and lower jaw bases 1 (including upper and lower jaw bases), alveolar bones 4, removable tooth bodies 2 (up to 28 teeth), and artificial gums 3 (1 pair) covering the surface of the alveolar bones 4, so as to meet the teaching requirements under different conditions. A plurality of grooves are embedded on the crown side of the alveolar bones 4 close to the tooth body 2, forming a circumferentially arranged step-like structure, and the continuous step-like structure forms a periodontal pocket bottom 5 for periodontal probing practice, and the distance between the table of the periodontal pocket bottom 5 and the cementoenamel junction of the gums 3 is 1-9 mm.

[0022] The upper and lower jaw bases 1 are bases that can be used in conjunction with the Cava simulation head model and are fixed to the Cava simulation head model by the second screw; the artificial alveolar bone 4 is made by simulating the alveolar bone absorption of clinical patients, including vertical bone absorption, horizontal bone absorption, root bifurcation lesions and other bone absorption conditions that may be encountered in clinical practice. At the same time, the inner peripheral edge of the alveolar bone 4 is designed with a 1mm wide step-shaped edge to simulate the bottom of the periodontal pocket formed after alveolar bone absorption caused by inflammation in clinical practice, which is used for students to practice manual or electronic periodontal probing. The alveolar socket of the alveolar bone 4 is provided with a screw hole to facilitate the use of the first screw to fix the tooth body 2. The table width of the periodontal pocket bottom 5 is 1mm.

[0023] Furthermore, the alveolar bone 4 includes an upper alveolar bone and a lower alveolar bone, both of which are composed of anterior tooth area, left posterior tooth area and right posterior tooth area; a step-shaped structure is provided on the crown side of the upper alveolar bone close to the tooth body 2 and the crown side of the lower alveolar bone close to the tooth body 2, and four degrees of furcation lesions are designed in the four sections of the posterior teeth (i.e., upper left posterior tooth area, upper right posterior tooth area, lower left posterior tooth area, and lower right posterior tooth area) to simulate furcation lesions. The bone tissue of the alveolar socket at the root bifurcation site can be designed in the manner of retaining 2 / 3, retaining 1 / 2 and completely removing to simulate different degrees of furcation lesions.

[0024] Furthermore, the artificial gum 3 is made of silicone rubber, which is tough and elastic, and can be designed to have various abnormal types of gum 3 shapes, such as gum 3 recession, gum 3 hyperplasia and periodontal abscess, so as to facilitate replacement according to teaching requirements and specific content arrangements. The tooth body 2 is a detachable and replaceable resin tooth, and the enamel-cementum junction of the tooth body 2 is clearly marked at the neck of the tooth body 2.

[0025] The working process of the device is described in detail below with reference to the accompanying drawings in the embodiments.

[0026] 1. Model placement: fix the model to the KaVo simulation head model;

[0027] 2. Periodontal probing: Each tooth is probed at 6 sites, namely the mesial, middle and distal sites on the buccal and lingual sides. During probing, the probe is inserted into the periodontal pocket along the long axis of the tooth body 2 with a force of 20-25g. The reading is taken after reaching the bottom of the periodontal pocket. The distance from the edge of the artificial gingiva 3 to the bottom of the periodontal pocket 5 is the probing depth.

[0028] 3. Probing of furcation lesions: Use a probe to probe horizontally into the furcation of the posterior teeth, and determine the extent of the furcation lesions based on the depth of penetration and whether it penetrates.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A periodontal disease examination teaching model, characterized in that: The model comprises an upper and lower jaw base (1), a tooth body (2) and a gum (3), wherein an alveolar bone (4) is arranged on the upper and lower jaw base (1); a plurality of grooves are embedded on the crown side of the alveolar bone (4) close to the tooth body (2), forming a circumferentially arranged step-like structure, and the continuous step-like structure forms a periodontal pocket bottom (5) for periodontal probing practice, and the distance between the table surface of the periodontal pocket bottom (5) and the cementoenamel junction of the gum (3) is 1-9 mm.

2. A periodontal disease examination teaching model according to claim 1, characterized in that: The table width of each step of the periodontal pocket bottom (5) is 1 mm.

3. A periodontal disease examination teaching model according to claim 1, characterized in that: The tooth body (2) is adapted to the alveolar socket of the alveolar bone (4); and the gum (3) covers the alveolar bone (4).

4. A periodontal disease examination teaching model according to claim 3, characterized in that: A screw hole is provided in the alveolar socket, and the tooth body (2) is detachably connected to the screw hole via a first screw.

5. A periodontal disease examination teaching model according to claim 1, characterized in that: The upper and lower jaw bases (1) are bases that can be used in conjunction with the Cava simulation head model, and the base is fixedly connected to the Cava simulation head model via a second screw.

6. A periodontal disease examination teaching model according to claim 1, characterized in that: The alveolar bone (4) comprises an upper alveolar bone and a lower alveolar bone, and the upper alveolar bone and the lower alveolar bone are both composed of an anterior tooth area, a left posterior tooth area, and a right posterior tooth area; a side of the crown of the upper alveolar bone close to the tooth body (2) and a side of the crown of the lower alveolar bone close to the tooth body (2) are both provided with a step-like structure.

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