CN217697672U - Device for sterilizing and whitening root canal - Google Patents

Device for sterilizing and whitening root canal Download PDF

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CN217697672U
CN217697672U CN202221290080.5U CN202221290080U CN217697672U CN 217697672 U CN217697672 U CN 217697672U CN 202221290080 U CN202221290080 U CN 202221290080U CN 217697672 U CN217697672 U CN 217697672U
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root canal
light source
light
connector
whitening
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郭丹
张倜然
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Changsha Smile Beauty Teeth Intelligent Technology Co ltd
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Changsha Smile Beauty Teeth Intelligent Technology Co ltd
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Priority to PCT/CN2023/096697 priority patent/WO2023227130A1/en
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Abstract

The utility model discloses a device for root canal sterilization or whitening. The utility model discloses a device includes charger, casing, group battery, control chip, LED working light source and root canal leaded light syringe needle. The group battery, control chip and LED working light source encapsulation constitute the device main part inside the casing, are provided with job switch, treatment time selection button and light source on the casing and select the button, and root canal leaded light syringe needle adopts interference formula to link at the main part head. The utility model discloses in, select LED working light source's wavelength and operating time through the button in the device main part, root canal leaded light syringe needle assembles the light beam in the tooth root canal, and the use of cooperation photosensitizer Toluidine Blue O (TBO) realizes effectively exterminating of pulpitis and periapical periodontitis germ. Through experimental verification, the utility model discloses the device can reach 99% to the most common enterococcus faecalis effect of exterminating of root canal therapy postoperative, has higher practical value in the root canal therapy after-treatment field.

Description

Device for sterilizing and whitening root canal
Technical Field
The utility model belongs to the technical field of root canal post-operation treatment is clinical, in particular to a device that is used for root canal sterilization disinfection or whitening.
Background
After the tooth is subjected to root canal resection, the internal bacteria of the tooth are easy to cause infection, and most pathogenic bacteria are anaerobic bacteria such as porphyromonas gingivalis and enterococcus faecalis. The latter is the most common bacterium in the affected tooth which is re-infected after the root canal treatment, and is a great cause of failure of the root canal treatment. At the same time, the extracellular polymeric matrix of the biofilm acts as a barrier, preventing the penetration of antibacterial agents into the biofilm, killing microorganisms and further damaging the biofilm, another important cause of endodontic failure.
In order to thoroughly eliminate the bacterial infection source in the root canal, photodynamic therapy (PDT) is developed, wherein PDT is a luminescent chemical reaction in which light, a photosensitizer and oxygen participate together, and singlet oxygen with strong oxidizing property can be generated to kill pathogenic microorganisms. It has the advantages of strong antibacterial action, wide antibacterial spectrum, rapid action, good safety and no drug resistance. Research shows that the method has obvious killing effect on bacteria in root canals. PDT is effective in reducing pain after a single endodontic procedure and also in improving the preservation rate of diseased teeth after the endodontic procedure, and the 10-year preservation rate of PDT as an adjuvant treatment tooth can be as high as 97.33%. However, there are some disadvantages in clinical practice, for example, the use of photosensitizers such as TBO and MB causes discoloration of the teeth, and the clinical manifestations are obvious. This is caused by PDT light source, and the light source used in PDT at present stage is Er: YAG laser and Nd: YAG laser with high power and high heat generation can make more photosensitizer enter dentin tubule and approach enamel junction to make tooth color change obvious. And the heat generation can cause irreversible damage to surrounding tissues, such as cementum damage, tooth root absorption and alveolar bone necrosis.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention aims to provide a device for root canal sterilization or whitening.
In order to achieve the purpose, the utility model provides the following technical proposal that the device comprises a charger, a shell, a battery pack, a control chip, an LED working light source and a root canal light guide needle head; the battery pack, the control chip and the LED working light source are packaged in the shell to form a device main body, the shell is also provided with a working switch, a treatment time selection key and a light beam selection key, and the working switch, the treatment time selection key and the light beam selection key are all electrically connected with the control chip;
the root canal light guide needle is arranged at the head part of the shell by adopting a mortise and tenon structure;
the head structure of the shell comprises a connector, the LED working light source is arranged in the center of the connector, and the LED working light source is electrically connected with the control chip and the battery pack; the root canal light guide needle head also comprises an installation joint, and the installation joint is in mortise and tenon connection with the connector in interference fit.
The connector is provided with four sections of clamping grooves, the mounting connector is correspondingly provided with four sections of grooves, the clamping grooves are clamped in the grooves, and the connector and the mounting connector are connected and detached in an interference manner.
The rated luminous power of the LED working light source is 25 mW; the LED working light source is a red and blue variable light source, and the value range of the red light wavelength is 630 nm to 650 nm; the blue light wavelength ranges from 430 nm to 450 nm.
The root canal light guide needle head is made of bisphenol A type carbonate, PC for short, the front end of the root canal light guide needle head is conical, and the cone tip light power is 4.7 mW.
A fusing mechanism is arranged in a control chip of the device, the light source is triggered after continuous working for 2 min, and the LED working light source automatically stops, so that irreversible damage to the gum due to long-time irradiation caused by overhigh power of red light and blue light is prevented.
The utility model has the advantages that:
1. the LED light source is used for replacing a semiconductor light source, the LED light source is low in cost and low in power, damage to teeth caused by heat generated by the light source is reduced, and the LED (630 nm) and the semiconductor laser (810 nm) are used for irradiating single tube in vitro teeth infected by enterococcus faecalis, and the result shows that the LED (630 nm) can effectively eliminate the enterococcus faecalis compared with the semiconductor laser (810 nm).
2. The disposable root canal leaded light syringe needle of toper is installed to device main part head for assemble output beam, reduce the facula area, make root canal sterilization operation convenient more sensitive and reduce secondary pollution's possibility.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for the embodiments or exemplary technical descriptions will be briefly described below, and as shown in the drawings, only some embodiments of the present application are shown, and it is obvious for those skilled in the art that other drawings may be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of the three-dimensional structure of the device of the present invention.
Fig. 2 is the schematic view of the device splitting structure of the present invention.
Fig. 3 is a perspective structure diagram of the head of the device of the present invention.
Fig. 4 is a schematic view of the head connection structure of the device of the present invention.
Fig. 5 is a schematic view of the root canal light guide needle structure of the device of the present invention.
Fig. 6 is the operation schematic diagram of the device of the utility model after the root canal operation.
1-a charging device, 2-a shell, 4-a battery pack, 21-a connector, 22-a control chip, 23-an LED working light source, 24-a working switch, 25-a treatment time selection button, 26-a light beam selection button, 3-a root canal light guide needle and 31-an attaching connector.
Detailed Description
In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings; referring to fig. 1 to 6, the device comprises a charger 1, a housing 2, a battery pack 4, a control chip 22, an LED working light source 23 and a root canal light guide needle 3; the battery pack 4, the control chip 22 and the LED working light source 23 are packaged in the shell to form a device main body, the shell 2 is also provided with a working switch 24, a treatment time selection key 25 and a light beam selection key 26, and the working switch 24, the treatment time selection key 25 and the light beam selection key 26 are all electrically connected with the control chip 22;
the root canal light guide needle 3 is arranged at the head part of the shell 2 by adopting a mortise and tenon structure;
the head structure of the shell 2 comprises a connector 21, an LED working light source 23 is arranged in the center of the connector 21, and the LED working light source 23 is electrically connected with the control chip 22 and the battery pack 4; root canal leaded light syringe needle 3 still includes attach fitting 31, is connected interference fit through attach fitting 31 and 21 mortise and tenon joints of connector.
The connector 21 is provided with four sections of clamping grooves, the mounting connector 31 is correspondingly provided with four sections of grooves, the clamping grooves are clamped in the grooves, and the connector 21 and the mounting connector 31 are connected and detached in an interference manner.
The rated luminous power of the LED working light source 23 is 25 mW; the LED working light source 23 is a red-blue variable light source, and the wavelength range of red light is 630 nm to 650 nm; the blue light wavelength ranges from 430 nm to 450 nm. Generally, the model is 3535RGB lamp beads and a control chip.
The root canal light guide needle 3 is made of bisphenol A type carbonate, PC for short, the front end of the root canal light guide needle is conical, the length of the root canal light guide needle is 5 cm, the root canal light guide needle is used for converging a light source, and the power of the conical tip light is 4.7 mW. The photosensitizer can conveniently enter the interior of the tooth root canal to control the sterilization effect.
The height of the shell 2 is about 17 cm, the weight is about 150g, and the material of the shell 2 is polyvinyl chloride (PVC).
A method for root canal disinfection or whitening comprising the steps of:
step 1: when the root canal is treated clinically, firstly, the normal saline injected into the root canal is washed, the device is taken out from the charger, then the root canal light guide needle head 3 is taken out and is arranged at the head part of the shell 2;
and 2, step: the device is started by long pressing a working switch 24 key on the device shell 2 for 3 seconds; pressing a light beam selection key 26 on the device shell, when an indicator lamp above displays red light, indicating that the wavelength of the selected light beam is 630 nm red light, pressing a treatment time selection key 25 on the device shell 2, when an indicator lamp below displays white light, and the working time of a surface light source is 10 s; the root canal light guide needle head 3 is close to the root canal of the tooth, the light source is started to carry out photodynamic sterilization by pressing a key of a working switch 24, the sterilization process is finished after 10 s, the light source is automatically closed, a light beam selection key 26 on the device shell 2 is pressed, when an indicator lamp above shows blue, the selected light beam wavelength is 450nm blue light, and the light irradiates the root canal of the tooth for 10 s again;
and 3, step 3: repeating the step 2 for three times, taking the device out of the oral cavity after the light source is automatically turned off, turning off the device for 3 seconds by long pressing a working switch button on the device shell 2, and finally, filling materials or recovering the inherent shape and function in other specific modes.
The utility model discloses the device root canal leaded light syringe needle 3 output ruddiness is as the auxiliary light, and the bright agent toluidine blue O of cooperation (concentration is 0.1 mg/ml) carries out the photodynamic therapy and disappears the bacterium in the tooth root canal and kill.
The working switch 24 is used for controlling the opening and closing of the device; controlling the LED working light source to be turned on and off;
the treatment time selection button 25 is used for controlling the working time of the device and selecting 10 s or 30 s;10 s is mainly used for the treatment after root canal operation, and 30 s is mainly used for killing periodontal bacteria.
The light beam selection key 26 is used for controlling the wavelength of the LED working light source and selecting 650nm red light or 450nm blue light; the 650nm red light is mainly used for sterilization and disinfection after the root canal operation; 450 The nm blue light is mainly used for tooth whitening and cold light effects.
Red light is used for sterilizing after the root canal surgery:
after the root canal resection is clinically carried out on the tooth, the hole after operation is firstly injected with normal saline for flushing, and then the disposable root canal light guide needle head 3 is taken out and installed on the head part of the device. Selecting the red light of the device as auxiliary light, then injecting 0.1 mg/ml toluidine blue O photosensitizer into the hole after operation by using an injector, deeply inserting the root canal light guide needle 3 into the medullary opening hole, starting the light source to carry out photodynamic sterilization for 10 s, and taking out the device from the oral cavity after the light source is automatically turned off. Finally, the filling material is combined with the root canal dentin to complete the root canal therapy operation.
Blue light is used for tooth whitening:
in clinical tooth whitening, firstly, cleaning teeth by using normal saline, uniformly coating light-cured resin (namely whitening agent) on the surfaces of the teeth, selecting blue light of a device as auxiliary light, enabling the device to be close to the surfaces of the teeth, starting a light source to irradiate for 30 s, standing for 10 s, repeating the operation for 3 times, and taking out the device from an oral cavity after the light source is automatically turned off to finish tooth whitening.
The principle is as follows: teeth are whitened by redox action (which may be simply understood as bleaching action) generated by peroxides in the whitening agent. Works under the irradiation of cold light (namely blue light), mainly aims at isolating ultraviolet rays and infrared rays, helps the whitening agent to permeate into teeth for decoloring, and enhances the effect of whitening the teeth.
The device control chip 22 is internally provided with a fusing mechanism, the light source is triggered after continuously working for 2 min, and the LED working light source 23 automatically stops, so that irreversible damage to the gum due to long-time irradiation caused by overhigh power of red light and blue light is prevented.
The relation between the supply voltage U (V) of the device and the output power P (W) of the root canal light guide needle head 3 is as follows:
P =
Figure 580044DEST_PATH_IMAGE001
e is a natural constant having a value approximately equal to 2.718281828;
the relation between the output power P (W) of the root canal light guide needle head 3 and the efficiency E (%) for eliminating enterococcus faecalis of the device is as follows:
Figure 434868DEST_PATH_IMAGE002
to verify the utility model, the following first embodiment is given:
after the root canal excision is carried out to the tooth in clinic, at first inject normal saline in the hole to the postoperative and wash, take out under the charger the utility model discloses the device takes out disposable root canal leaded light syringe needle after that, installs at the device head, long presses the 3 seconds of the last work switch button of device casing and starts this device. Pressing the light beam selection key on the device shell, displaying red light on the indicator lamp at the upper part to indicate that the wavelength of the selected light beam is 630 nm red light, pressing the treatment time selection key on the device shell, displaying white light on the indicator lamp at the lower part, and setting the working time of the surface light source to be 10 s. And then injecting 0.1 mg/ml toluidine blue O photosensitizer into the hole after the operation by using an injector, deeply inserting the root canal light guide needle into the medullary opening hole, pressing a working switch button to start a light source to carry out photodynamic sterilization, completing the sterilization process after 10 s, automatically closing the light source, taking the device out of the oral cavity, closing the device after long pressing the working switch button on the device shell for 3 s, and finally combining a filling material with the root canal dentin to complete the root canal treatment operation.
The second embodiment:
use the utility model discloses device cooperation photosensitizer toluidine blue O carries out the experiments of disinfecting of photodynamic to enterococcus faecalis ATCC2921, chooses 450nm ruddiness light beam for use, and illumination operating time 30 s, the experimental result is that the needle point position bactericidal effect of root canal leaded light syringe needle is obvious, and bactericidal efficiency can reach 99%.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and implement the present invention accordingly, which can not limit the protection scope of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.

Claims (5)

1. A device for sterilizing or whitening the root canal is characterized by comprising a charger (1), a shell (2), a battery pack (4), a control chip (22), an LED working light source (23) and a root canal light guide needle head (3); the battery pack (4), the control chip (22) and the LED working light source (23) are packaged in the shell to form a device main body, the shell (2) is further provided with a working switch (24), a treatment time selection key (25) and a light beam selection key (26), and the working switch (24), the treatment time selection key (25) and the light beam selection key (26) are all electrically connected with the control chip (22);
the root canal light guide needle head (3) is arranged at the head part of the shell (2) by adopting a mortise and tenon structure;
the head structure of the shell (2) comprises a connector (21), an LED working light source (23) is arranged in the center of the connector (21), and the LED working light source (23) is electrically connected with the control chip (22) and the battery pack (4); the root canal light guide needle head (3) further comprises a mounting connector (31), and is in mortise and tenon connection with the connector (21) through the mounting connector (31) in interference fit.
2. The apparatus for sterilizing or whitening the root canal according to claim 1,
the connector (21) is provided with four sections of clamping grooves, the mounting connector (31) is correspondingly provided with four sections of grooves, the clamping grooves are clamped in the grooves, and the connector (21) and the mounting connector (31) are connected and detached in an interference manner.
3. The apparatus for root canal disinfection or whitening according to claim 1, characterized in that the rated luminous power of the LED operating light source (23) is 25 mW; the LED working light source (23) is a red and blue variable light source, and the value range of the wavelength of red light is 630 nm to 650 nm; the blue light wavelength ranges from 430 nm to 450 nm.
4. The apparatus for sterilizing or whitening the root canal according to claim 1, wherein the root canal light guide needle (3) is made of bisphenol a type carbonate, PC for short, and has a tapered front end with a power of 4.7 mW.
5. The device for sterilizing or whitening the root canal according to claim 1, wherein the device control chip (22) is internally provided with a fusing mechanism, the light source is triggered after continuously operating for 2 min, and the LED operating light source (23) is automatically stopped to prevent the irreversible damage to the gum caused by long-time irradiation due to overhigh power of red light and blue light.
CN202221290080.5U 2022-05-27 2022-05-27 Device for sterilizing and whitening root canal Active CN217697672U (en)

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CN202221290080.5U CN217697672U (en) 2022-05-27 2022-05-27 Device for sterilizing and whitening root canal
PCT/CN2023/096697 WO2023227130A1 (en) 2022-05-27 2023-05-27 Oral hygiene apparatus, system, and use method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023227130A1 (en) * 2022-05-27 2023-11-30 长沙微笑美齿智能科技有限公司 Oral hygiene apparatus, system, and use method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023227130A1 (en) * 2022-05-27 2023-11-30 长沙微笑美齿智能科技有限公司 Oral hygiene apparatus, system, and use method

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