CN205177259U - People's upper jaw central incisor mouth rehabilitation mould - Google Patents

Abstract

The utility model belongs to medical auxiliary equipment, which is a dental restoration mold for human maxillary central incisors. , a pulp chamber is formed in the dentin, and the pulp chamber extends through the tooth root, and the pulp chamber fills the pulp, and the enamel, dentin, pulp and root are respectively of different colors. This human maxillary central incisor oral restoration mold, by distinguishing the enamel, dentin and pulp with different colors, enables stomatology students to have an intuitive understanding of the internal structure of the tooth during the operation; the enamel, tooth The shape and thickness of the essence and pulp are designed according to the experimental results, which are basically consistent with the three-dimensional structure of the real maxillary central incisor; the pulp chamber is made of red liquid wrapped in a closed material, so that medical students can Visually see the phenomenon of penetrating pulp.

Description

A dental restoration mold for human maxillary central incisors

technical field

The utility model belongs to the technical field of medical auxiliary equipment, in particular to a mold for oral restoration of human maxillary central incisors.

Background technique

The human maxillary central incisor mold imitates the shape of the maxillary central incisors in the population, and is fixed on a simulated skull model in vitro. It is a tool used for dental students to practice restoration operations, such as crown preparation and veneer preparation.

The previous maxillary central incisor mold has the following disadvantages:

1. There is no scientific and specific distinction between enamel, dentin, and pulp;

2. There is a big difference between the mold and the real human maxillary central incisors.

These shortcomings of the maxillary central incisor mold have caused the students to neither understand the structure of the tooth vividly nor make an intuitive judgment on whether the pulp is penetrated during the restoration operation.

The root cause of this shortcoming of the mold is that the designer cannot obtain the precise thickness and three-dimensional parameters of the enamel, dentin and pulp of the maxillary central incisor. and the precise thickness of the pulp and the mold of the three-dimensional parameters.

Utility model content

The purpose of the utility model is to design a mold that allows designers to accurately obtain the precise thickness and three-dimensional parameters of maxillary central incisor enamel, dentin and pulp.

To this end, the utility model provides a human maxillary central incisor oral restoration mold, which is in the shape of a central incisor. The central incisor-shaped mold includes a crown and a tooth root connected to the crown. Enamel, dentin and pulp, and the pulp extends to the root of the tooth, filling the pulp cavity, and the enamel, dentin, pulp and root are respectively different colors.

The enamel is divided into labial and lingual parts according to its position in the oral cavity, and the labial part is divided longitudinally and evenly into the labial mesial region of enamel, the labial middle region of enamel, and the labial part of enamel according to its thickness distribution. The thickness of the labial mesial region of the enamel is 0.5-0.9 mm, the thickness of the labial middle region of the enamel is 0.5-1.0 mm, and the thickness of the labial-distal region of the enamel is 0.5-1.0 mm The lingual part is divided longitudinally into three regions according to its thickness distribution, the lingual mesial region of enamel, the lingual middle region of enamel, and the distal region of lingual enamel, and the thickness of the lingual mesial region of enamel is 0.5 ~0.7mm, the thickness of enamel in the lingual-medial area is 0.4-0.7mm, and the thickness of enamel in the lingual-distal area is 0.6-0.7mm.

The enamel is located on the surface layer of the crown, its appearance is milky white or light yellow, its hardness is 340KHN, and it is made of glass fiber.

The dentin is also divided into labial and lingual parts according to its position in the oral cavity, and the labial part is divided longitudinally into the labial mesial region of the dentin, the middle labial region of the dentin, and the dentin side according to its thickness distribution. Three regions in the labial distal region, the thickness of the labial mesial region of dentin is 0.6-2.0 mm, the thickness of the labial middle region of dentin is 0.5-2.0 mm, and the thickness of the labial-distal region of dentin is 0.6-2.0 mm mm; The lingual part is divided longitudinally into three regions according to its thickness distribution: the lingual mesial region of the dentin, the lingual middle region of the dentin, and the distal lingual region of the dentin. The thickness of the lingual mesial region of the dentin is 0.4-1.9mm, the thickness of dentin in the lingual-medial region is 0.3-2.9mm, and the thickness of dentin in the lingual-distal region is 0.4-1.9mm.

The dentin is located in the middle layer of the crown, its appearance is light yellow, its hardness is 68KHN, and it is made of light-cured resin.

The distance from the mesial pulpal angle to the incisal end of the dental pulp is 4.0-5.0 mm, and the distance from the distal pulpal angle to the incisal end is 4.5-5.5 mm; The distance from the corner to the distal proximal surface was 2.5±3.0mm.

The pulp is located in the innermost pulp cavity of the crown, and is made by filling the pulp cavity with red ink.

The tooth root is connected to the root of the crown, and a screw thread is arranged in the apex of the tooth root.

The tooth root is made of light-cured resin.

Beneficial effects of the present utility model: the oral restoration mold of the human maxillary central incisor carried out in the present utility model first distinguishes the parts of the enamel, dentin and dental pulp with different colors, so that the stomatology students can use different colors during the operation. There is an intuitive understanding of the internal structure of the tooth; secondly, the shape and thickness of the enamel, dentin and pulp are designed according to the experimental data, which is basically consistent with the three-dimensional structure of the real maxillary central incisor; finally, the pulp cavity is wrapped with a closed material red The liquid is used to make it, so that medical students can visually see the pulp penetration phenomenon in the process of abutment preparation.

Description of drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is the overall structure schematic diagram of the mold of the present utility model.

Figure 2 is a schematic diagram of the structure of the labial side of tooth enamel.

Figure 3 is a schematic view of the structure of the lingual side of tooth enamel.

Figure 4 is a schematic diagram of the structure of the labial side of dentin.

Fig. 5 is a schematic diagram of the structure of the lingual side of dentin.

Fig. 6 is a schematic diagram of the structure of the dental pulp inside the crown.

Description of Reference Signs: 1. Enamel; 2. Dentin; 3. Pulp; 4. Root; 5. Labial mesial region of enamel; 6. Labial middle region of enamel; Middle area; 8, lingual distal area of enamel; 9, lingual middle area of enamel; 10, lingual mesial area of enamel; 11, labial mesial area of dentine; 12, middle labial area of dentine ;13. Dentin labial distal area; 14. Dentin lingual distal area; 15. Dentin lingual middle area; 16. Dentin lingual mesial area; 17. Distance from mesial pulpal angle to incisal end; 18. The distance from the distal pulpal angle to the incisal end; 19. The distance from the mesial pulpal angle to the mesioproximal surface; 20. The distance from the distal pulpal angle to the distal proximal surface.

detailed description

Example 1:

The present embodiment provides a human maxillary central incisor oral restoration mold, as shown in Figure 1, the shape is the central incisor shape, the central incisor shape mold includes a crown and a root 4 connected with the crown, the crown is outward The interior includes enamel 1, dentin 2 and pulp 3 in turn, and the pulp 3 extends to the root 4, and the pulp 3 fills the pulp cavity, and the enamel 1, dentin 2, pulp 3 and root 4 are respectively for different colors.

The current central incisor mold does not make a scientific and specific distinction between enamel, dentin, and pulp. As a result, students cannot vividly understand the structure of teeth during the practice of restoration operations, nor can they judge whether Intuitive judgment is made through pulp penetration. In this embodiment of the human maxillary central incisor dental restoration mold, enamel 1, dentin 2, pulp 3 and root 4 are marked with different colors, so that stomatology students can Have an intuitive understanding of the internal structure of the tooth during the operation.

Example 2:

This embodiment further illustrates on the basis of Example 1 that the enamel 1 is located on the surface of the crown. The enamel 1 in this mold of the present embodiment is milky white or light yellow in appearance and has a hardness of 340KHN, made of glass fiber. become. The enamel 1 is divided into two parts, the labial side and the lingual side according to its position in the oral cavity, the labial side as shown in FIG. 2 and the lingual side as shown in FIG. 3 .

Combining Figures 2 and 3, the labial portion of enamel 1 is longitudinally and evenly divided into labial mesial zone 5, labial middle zone 6 and labial distal enamel zone 7 according to its thickness distribution. The labial mesial region 5 of the enamel has a thickness of 0.5-0.9 mm, the labial middle region 6 of the enamel has a thickness of 0.5-1.0 mm, and the labial-distal region 7 of the enamel has a thickness of 0.5-1.0 mm; the lingual part is pressed Its thickness distribution is divided into three regions: lingual enamel mesial region 10, lingual enamel middle region 9 and enamel lingual distal region 8. The thickness of the lingual mesial enamel region 10 is 0.5- 0.7 mm, the thickness of the lingual middle region 9 of the enamel is 0.4-0.7 mm, and the thickness of the lingual distal region 8 of the enamel is 0.6-0.7 mm.

In this embodiment, the dentin 2 is located in the middle layer of the crown, its appearance is light yellow, its hardness is 68KHN, and it is made of photocurable resin. The dentin 2 is also divided into two parts, the labial side and the lingual side according to its position in the oral cavity, the labial side as shown in FIG. 4 and the lingual side as shown in FIG. 5 .

4 and 5, according to the thickness distribution of the labial part, the labial part of the dentin is divided longitudinally into three regions, the labial mesial region 11, the labial middle region 12 of the dentin and the distal region 13 of the labial dentin. The thickness of the labial mesial region 11 of the dentin is 0.6-2.0 mm, the thickness of the dentin labial middle region 12 is 0.5-2.0 mm, and the thickness of the dentin labial distal region 13 is 0.6-2.0 mm; the lingual part is distributed according to its thickness It is longitudinally and evenly divided into three regions: the lingual dentin mesial region 16, the dentin lingual middle region 15 and the dentin lingual distal region 14. The thickness of the dentin lingual mesial region 16 is 0.4-1.9 mm. The thickness of the dentin lingual middle region 15 is 0.3-2.9 mm, and the thickness of the dentin lingual distal region 14 is 0.4-1.9 mm.

The above-mentioned specific numerical values in this embodiment divide this human maxillary central incisor dental restoration mold into specific numerical values, making it closer to the real three-dimensional structure of the maxillary central incisors. In this way, students can The observation is closer to the real situation.

Example 3:

As shown in Figure 6, the dental pulp 3 is located in the innermost layer of the crown. In order to make the mold of the present utility model more consistent with the three-dimensional structure of the real maxillary central incisor, in this embodiment, the dental pulp 3 is filled with red ink. The pulp cavity is made, the distance from the mesial pulpal angle to the incisal end 17 of the pulp 3 is 4.0-5.0 mm, the distance from the distal pulpal angle to the incisal end 18 is 4.5-5.5 mm; the distance from the mesial pulpal angle to the mesial proximal surface 19 is 2.0± 2.5mm, the distance 20 from the distal medullary angle to the distal proximal surface is 2.5±3.0mm.

The pulp cavity 3 is made by filling the pulp cavity with red ink, so that the pulp part is more obvious and intuitive, for example, the phenomenon of pulp penetration can be visually seen during the preparation process of the abutment tooth.

The tooth root 4 is connected to the root of the crown, and its appearance is yellow. In this embodiment, the tooth root 4 is made of light-cured resin, and a thread is provided in the apex of the tooth root 4 to facilitate fixing on the artificial skull model.

In summary, this utility model of the human maxillary central incisor oral restoration mold, by distinguishing the enamel, dentin and pulp with different colors, allows stomatology students to understand the internal structure of the tooth during the operation. There is an intuitive understanding; the shape and thickness of enamel, dentin and pulp are designed according to the experimental results, which are basically consistent with the three-dimensional structure of the real maxillary central incisor; Medical students can visually see the pulp penetration phenomenon in the process of abutment preparation.

Words such as labial side, lingual side, mesial, distal, mesial pulpal angle, incisal end, distal pulpal angle, mesial adjacent surface, and distal proximal surface appearing in this utility model are commonly used words in the field of stomatology , will not be specifically explained here, and this structure of the present invention is not only applicable to the upper jaw, but also applies to other tooth positions in the oral cavity by modifying the orientation description of the present invention.

The above examples are only illustrations of the present utility model, and do not constitute a limitation to the protection scope of the present utility model. All designs identical or similar to the present utility model belong to the protection scope of the present invention.

Claims (9)

1. A human maxillary central incisor oral restoration mold, which is in the shape of a central incisor, and is characterized in that: the central incisor-shaped mold includes a crown and a tooth root (4) connected to the crown, and the crown is in order from the outside to the inside Consists of enamel (1), dentin (2) and pulp (3), and the pulp extends to the root of the tooth (4), the pulp (3) fills the pulp cavity, the enamel (1), dentin (2), pulp (3) and root (4) are respectively different colors. 2. The human maxillary central incisor oral restoration mold according to claim 1, characterized in that: the enamel (1) is divided into two parts, the labial side and the lingual side according to its position in the oral cavity, and the labial part is divided into Its thickness distribution is divided longitudinally into three regions, the labial mesial region of enamel (5), the labial middle region of enamel (6), and the labial distal region of enamel (7). The thickness of the region (5) is 0.5-0.9 mm, the thickness of the middle region (6) of the labial side of the enamel is 0.5-1.0 mm, and the thickness of the distal region (7) of the labial side of the enamel is 0.5-1.0 mm; the thickness of the lingual part is according to its thickness The distribution is divided longitudinally into three areas, the lingual mesial enamel (10), the lingual middle enamel (9), and the lingual distal enamel (8). 10) The thickness is 0.5-0.7 mm, the thickness of the lingual middle region (9) of the enamel is 0.4-0.7 mm, and the thickness of the lingual distal region (8) of the enamel is 0.6-0.7 mm. 3. The human maxillary central incisor dental restoration mold according to claim 2, characterized in that: the enamel (1) is located on the surface of the crown, its appearance is milky white or light yellow, its hardness is 340KHN, and it is made of glass fiber production. 4. The human maxillary central incisor oral restoration mold according to claim 1, characterized in that: the dentin (2) is also divided into two parts, the labial side and the lingual side according to its position in the oral cavity, and the labial side part According to its thickness distribution, it is divided into three regions: the labial mesial region of dentin (11), the middle labial region of dentin (12) and the distal labial region of dentin (13). The thickness of the central area (11) is 0.6-2.0 mm, the thickness of the middle area (12) of the labial side of the dentin is 0.5-2.0 mm, and the thickness of the distal area (13) of the labial side of the dentin is 0.6-2.0 mm; The thickness distribution is divided longitudinally into three regions, the lingual mesial region of the dentin (16), the middle lingual region of the dentin (15), and the distal lingual region of the dentin (14). (16) The thickness is 0.4-1.9 mm, the thickness of the dentin lingual middle region (15) is 0.3-2.9 mm, and the dentin lingual distal region (14) is 0.4-1.9 mm thick. 5. The human maxillary central incisor dental restoration mold according to claim 4, characterized in that: the dentin (2) is located in the middle layer of the crown, its appearance is light yellow, its hardness is 68KHN, and it is made of light-cured resin become. 6. The human maxillary central incisor oral restoration mold according to claim 1, characterized in that: the distance (17) from the mesial pulp angle to the incisal end of the dental pulp (3) is 4.0-5.0 mm, and the distance from the distal pulp The distance from the corner to the incisal end (18) is 4.5-5.5 mm; the distance from the mesiomedullary angle to the mesial proximal surface (19) is 2.0±2.5 mm, and the distance from the distal medullary angle to the distal proximal surface (20) is 2.5±3.0 mm. 7. The oral restoration mold of human maxillary central incisors according to claim 6, characterized in that: the pulp (3) is located in the innermost layer of the crown, and is made by filling the pulp cavity with red ink. 8. The dental restoration mold of human maxillary central incisors according to claim 1, characterized in that: the tooth root (4) is connected to the root of the crown, and a thread is provided in the apex of the tooth root (4). 9. The dental restoration mold for human maxillary central incisors according to claim 8, characterized in that: its appearance is yellow, and the tooth root (4) is made of light-cured resin.