Oral post nuclear impression material infusion assembly and impression preparation device
By incorporating structures such as an easy-cutting port and a limiting plate on the infusion head, the problem of easy breakage of the impression in the prior art is solved, achieving high strength and high toughness of the impression, avoiding the generation of cavitation bubbles, and ensuring the integrity and clarity of the impression.
Patent Information
- Application Number
- CN202520121021.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-01-17
AI Technical Summary
In existing technologies, when taking impressions using a spiral conveyor, cavitation bubbles are easily generated inside the root canal, causing the impression to easily break when it is removed from the root canal.
Design a dental post and core impression material infusion assembly, including setting an easy-cutting notch on the infusion head, cutting off the easy-cutting notch and leaving the infusion head in the root canal to be shaped together with the impression material, and improving the connection firmness and uniform distribution of the impression material through structures such as a limiting plate, an outlet hole, and an air guide groove.
It improves the strength and toughness of root canal impressions, avoids cavitation in the root canal when the infusion head is removed, reduces the risk of root canal breakage, and ensures the integrity and clarity of the impression.
Smart Images
Figure CN223799843U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to oral cavity medical instrument technical field especially, it relates to a kind of oral cavity post and core impression material infusion assembly and impression preparation device. BACKGROUND
[0002] In clinic, for stump and crown, after completing root canal treatment, it needs to be taken out in root canal to make a tightness post and core that can improve strength and stability, and is worn into root canal to provide support;The specific method is as follows:
[0003] Mixing silicone rubber impression material, silicone rubber is first punched into the root canal opening of tooth, and then is delivered into root canal by screw conveyor to copy the morphology in root canal;Then cover silicone rubber on the whole dentition to copy the morphology in mouth and dentition, and after the silicone rubber solidifies, it is taken out from the mouth, so that an impression reflecting the morphology of root canal and the whole dentition can be obtained, to be used for making subsequent post and core and denture.
[0004] The disadvantage of using the above device to take impression is that a part of impression material is taken out when the delivery device is pulled out from root canal after completing glue injection, so that air bubble is generated in root canal, which leads to the reduction of impression strength, and the impression is easily broken when it is taken out from root canal. UTILITY MODEL CONTENT
[0005] The utility model provides a kind of oral cavity post and core impression material infusion assembly and impression preparation device, solve the problem that the impression is easily broken when it is taken out from root canal in prior art by screw conveyor to make impression, etc.
[0006] The technical scheme of the utility model is as follows:
[0007] The utility model provides a kind of oral cavity post and core impression material infusion assembly in the first aspect, including infusion head, the inside of the infusion head is equipped with hollow flow channel, the bottom of the infusion head is equipped with the outlet that is communicated with flow channel;The middle section of the infusion head is equipped with easy-to-cut mouth, the easy-to-cut mouth is located outside root canal, for cutting easy-to-cut mouth after infusion is completed, and the truncated infusion head is left in root canal with impression material together with the same type.
[0008] The utility model can cut easy-to-cut mouth after root canal impression material is infused, and the truncated infusion head is left in root canal with impression material together with the same type by being equipped with easy-to-cut mouth on infusion head, on the one hand, the strength and toughness of root canal impression are greatly improved, on the other hand, the infusion head does not need to be pulled out from root canal, so that air bubble is avoided in root canal when the infusion head is pulled out, so that the strength of root canal impression is further improved, and the risk of root canal fracture can be effectively reduced.
[0009] Preferably, the outer wall of the infusion head is provided with at least one vertical first limiting plate, which is located below the shearable opening and outside the root canal, so that relative rotation between the infusion head and the impression is avoided when the impression is removed, thereby improving the firmness of the connection between the infusion head and the impression.
[0010] Further, the outer wall of the infusion head is provided with at least one horizontal second limiting plate, which is located below the shearable opening and outside the root canal, so that axial displacement between the infusion head and the impression is avoided when the impression is removed, thereby further improving the firmness of the connection between the infusion head and the impression and preventing the infusion head from falling off the impression.
[0011] Preferably, the side wall of the infusion head is uniformly provided with a plurality of guide holes in the axial and circumferential directions, which are in communication with the hollow flow channel inside the infusion head, so that the impression material can be overflowed through the openings at the bottom of the infusion head and the guide holes in the side wall, and the distribution of the impression material in the root canal is more uniform, thereby improving the clarity of the impression.
[0012] Preferably, the outer wall of the infusion head is provided with at least one air guide groove in the length direction, the top end of the air guide groove extends to the outside of the root canal, and the bottom end of the air guide groove extends to the bottom outlet of the infusion head, so that the air in the root canal can be discharged through the air guide groove when the impression material is filled, thereby preventing air bubbles from appearing in the impression and further improving the clarity of the impression.
[0013] Preferably, the outer wall of the infusion head is provided with a scale line in the length direction, the top end of the scale line extends to the outside of the root canal, and the scale line can be used to indicate the depth of the infusion head inserted into the root canal, thereby prompting the operator whether the infusion head has been inserted into the bottom of the root canal.
[0014] The second aspect of the utility model provides a kind of oral post core impression making device, including infusion gun, the gun head of the infusion gun is connected with the infusion head described. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to these drawings without creative labor for those skilled in the art.
[0016] Figure 1 It is a structure diagram of the utility model oral post core impression material infusion assembly;
[0017] Figure 2The utility model discloses a structure diagram of oral cavity post core impression taking device,
[0018] In the drawing: 1, infusion head; 2, flow channel; 3, easy to cut mouth; 4, first limit board; 5, second limit board; 6, lead-out hole; 7, air guide groove; 8, scale; 9, infusion gun. PREFERRED EMBODIMENT
[0019] The technical scheme of the utility model will be described below in clear and complete manner in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.
[0020] Reference Figure 1 The first aspect of the embodiment provides an oral cavity post core impression material infusion assembly, comprising an infusion head 1, the inside of the infusion head 1 is provided with a hollow flow channel 2, the bottom of the infusion head 1 is provided with an outlet communicated with the flow channel 2, the middle section of the infusion head 1 is provided with an easy-to-cut mouth 3, the easy-to-cut mouth 3 is located outside the root canal, and is used to cut the easy-to-cut mouth 3 after infusion is completed, so that the truncated infusion head 1 is left in the root canal and is shaped together with the impression material.
[0021] The utility model discloses an easy-to-cut mouth 3 is arranged on the infusion head 1, can cut the easy-to-cut mouth 3 after infusion is completed in the root canal impression material, and the truncated infusion head 1 is left in the root canal and is shaped together with the impression material, on the one hand, the strength and toughness of the root canal impression are greatly improved, on the other hand, the infusion head 1 does not need to be pulled out from the root canal, so that the air bubble in the root canal when pulling out the infusion head 1 is avoided, and the strength of the root canal impression is further improved, and the risk of root canal fracture can be effectively reduced.
[0022] In the embodiment, the easy-to-cut mouth 3 is annular slot, which facilitates quick cutting of the infusion head 1.
[0023] As Figure 1 Preferably, the outer wall of the infusion head 1 is provided with at least one vertical first limit board 4, the first limit board 4 is located below the easy-to-cut mouth 3 and outside the root canal, which can avoid relative rotation between the infusion head 1 and the impression when the impression is taken out, so that the firmness of the connection between the infusion head 1 and the impression is improved.
[0024] As Figure 1 Further, the outer wall of the infusion head 1 is provided with at least one horizontal second limit board 5, the second limit board 5 is located below the easy-to-cut mouth 3 and outside the root canal, which can avoid axial displacement between the infusion head 1 and the impression when the impression is taken out, so that the firmness of the connection between the infusion head 1 and the impression is further improved, and the infusion head 1 is prevented from falling off from the impression.
[0025] As shown in Figure 1 the side wall of the infusion head 1 is preferably uniformly provided with a plurality of guide holes 6 in the axial and circumferential directions, and the guide holes 6 are in communication with the hollow flow channel 2 inside the infusion head 1. By providing a plurality of guide holes 6 in the side wall of the infusion head 1, the impression material can be overflowed through the openings in the bottom of the infusion head 1 and the guide holes 6 in the side wall at the same time, so that the distribution of the impression material in the root canal is more uniform, and the clarity of the impression is improved.
[0026] As shown in Figure 1 the outer wall of the infusion head 1 is preferably provided with at least one air guide groove 7 in the length direction, and the top end of the air guide groove 7 extends to the outside of the root canal, and the bottom end of the air guide groove 7 extends to the bottom outlet of the infusion head 1. By providing the air guide groove 7 in the outer wall of the infusion head 1, the air in the root canal can be discharged through the air guide groove 7 when filling the impression material, so as to prevent air bubbles from appearing in the impression, and further improve the clarity of the impression.
[0027] As shown in Figure 1 the outer wall of the infusion head 1 is preferably provided with a scale line 8 in the length direction, and the top end of the scale line 8 extends to the outside of the root canal. By providing the scale line 8 in the outer wall of the infusion head 1, the depth of the infusion head 1 inserted into the root canal can be indicated, so as to prompt the operator whether the infusion head 1 has been inserted into the bottom of the root canal.
[0028] In this embodiment, the scale line 8 is arranged on both sides of the air guide groove 7.
[0029] As shown in Figure 2 the second aspect of the present embodiment provides an oral post and core impression taking device, which comprises an infusion gun 9, and the gun head of the infusion gun 9 is connected with the infusion head 1.
[0030] The infusion gun 9 in this embodiment can directly adopt an existing silicone rubber gun. The inlet of the infusion head 1 is detachably connected with the gun head of the infusion gun 9, and the infusion head 1 as a whole is in the shape of a “horn”, and the front section thereof is provided with an elbow for facilitating operation in the oral cavity. Figure 1 Only part of the structure of the middle section and the rear section of the infusion head 1 is shown in this embodiment.
[0031] The use method of the impression taking device of this embodiment is as follows:
[0032] First, the inlet of the infusion head 1 is connected with the head of the infusion gun 9, then the infusion head 1 is inserted into the root canal of the tooth stump to be molded, while observing the scale line 8 on the side wall of the infusion head 1 until the infusion head 1 is inserted into the bottom of the root canal; then the molding material (silicone rubber) is infused into the infusion head 1 through the infusion gun 9, the molding material fills the root canal by overflowing from the bottom outlet and the side wall outlet hole 6 in the hollow channel 2 inside the infusion head 1, in the process of filling the molding material, the air in the root canal is squeezed out of the root canal through the air vent groove 7; after the root canal is filled with the molding material, the infusion head 1 is cut off at the easy-to-cut opening 3, then the molding material is continuously filled on the residual root and the tooth row until the tooth row and the truncated infusion head 1 are completely wrapped in the molding material; after the molding material is solidified, the mold is directly taken out of the oral cavity, the mold in the root canal and the truncated infusion head 1 are also taken out together, so that the complete oral cavity post and core mold is obtained.
[0033] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An oral post and core impression material infusion assembly, comprising: The infusion head (1) is internally provided with a hollow flow channel (2), and the bottom of the infusion head (1) is provided with an outlet communicating with the flow channel (2); the middle section of the infusion head (1) is provided with a shearable opening (3) located outside the root canal, which is used for cutting the shearable opening (3) after the infusion is completed, and leaving the truncated infusion head (1) in the root canal together with the impression material to be shaped.
2. An oral post and core impression material infusion assembly as defined in claim 1, wherein, The outer wall of the infusion head (1) is provided with at least one vertical first limiting plate (4) located below the shearable opening (3) and outside the root canal.
3. An oral post and core impression material infusion assembly as defined in claim 1 wherein, The outer wall of the infusion head (1) is provided with at least one horizontal second limiting plate (5) located below the shearable opening (3) and outside the root canal.
4. An oral post and core impression material infusion assembly as defined in claim 1 wherein, The side wall of the infusion head (1) is uniformly provided with a plurality of guide holes (6) along the axial and circumferential directions, and the guide holes (6) communicate with the hollow flow channel (2) inside the infusion head (1).
5. An oral post and core impression material infusion assembly as defined in claim 1 wherein, The outer wall of the infusion head (1) is provided with at least one air guide groove (7) along the length direction, and the top end of the air guide groove (7) extends to the outside of the root canal, and the bottom end of the air guide groove (7) extends to the bottom outlet of the infusion head (1).
6. An oral post and core impression material infusion assembly as defined in claim 1 wherein, The outer wall of the infusion head (1) is provided with a scale line (8) along the length direction, and the top end of the scale line (8) extends to the outside of the root canal.
7. An oral post and core impression taking device, characterized by, The infusion gun (9) is connected with the infusion head (1) as claimed in any one of claims 1 to 6.