CN111494230B - Cold light tooth whitening gel, preparation method and application - Google Patents

Cold light tooth whitening gel, preparation method and application Download PDF

Info

Publication number
CN111494230B
CN111494230B CN202010360469.1A CN202010360469A CN111494230B CN 111494230 B CN111494230 B CN 111494230B CN 202010360469 A CN202010360469 A CN 202010360469A CN 111494230 B CN111494230 B CN 111494230B
Authority
CN
China
Prior art keywords
tooth whitening
cold light
whitening gel
gel
mixture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010360469.1A
Other languages
Chinese (zh)
Other versions
CN111494230A (en
Inventor
陈子航
金泽龙
廖勋凡
陈义旺
钟鸣
谈利承
秦俊远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Dengte Technology Co ltd
Original Assignee
Jiangxi Normal University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Normal University filed Critical Jiangxi Normal University
Priority to CN202010360469.1A priority Critical patent/CN111494230B/en
Publication of CN111494230A publication Critical patent/CN111494230A/en
Application granted granted Critical
Publication of CN111494230B publication Critical patent/CN111494230B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/30Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
    • A61K8/49Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds
    • A61K8/4906Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom
    • A61K8/4913Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having five membered rings, e.g. pyrrolidone carboxylic acid
    • A61K8/492Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds containing heterocyclic compounds with one nitrogen as the only hetero atom having five membered rings, e.g. pyrrolidone carboxylic acid having condensed rings, e.g. indol
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/02Cosmetics or similar toiletry preparations characterised by special physical form
    • A61K8/04Dispersions; Emulsions
    • A61K8/042Gels
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/25Silicon; Compounds thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27Zinc; Compounds thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00Cosmetics or similar toiletry preparations
    • A61K8/18Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29Titanium; Compounds thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61QSPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q11/00Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Birds (AREA)
  • Epidemiology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cosmetics (AREA)

Abstract

The invention belongs to the technical field of tooth whitening, and discloses a cold light tooth whitening gel, a preparation method and application thereof, wherein the raw materials for preparing the effective components of the cold light tooth whitening gel comprise: phthalimide peroxycaproic acid, a stabilizer, a photocatalyst, a thickening agent, a humectant, a pH regulator, a sweetening agent, essence and deionized water; the prepared cold light tooth whitening gel is smeared on teeth, and is irradiated by LED yellow light to finish tooth whitening. The phthalimide peroxy caproic acid is decomposed under the catalytic action of a photocatalyst to generate strong oxides with enough free radicals, so that pigment tissues on the surface and in the deep layer of the tooth are rapidly decomposed, and the tooth is rapidly whitened; the LED yellow light has small and mild energy and small irritation to eyes and skin, and solves the problem of potential safety hazard caused by using high-intensity blue light and hydrogen peroxide in the cold light tooth whitening process. The cold light tooth whitening gel is suitable for cold light tooth whitening.

Description

Cold light tooth whitening gel, preparation method and application
Technical Field
The invention belongs to the technical field of tooth whitening, and relates to a tooth whitening gel, in particular to a cold light tooth whitening gel, a preparation method and application.
Background
The cold light tooth whitening is a tooth whitening technology popular in Europe and America, and high-intensity blue light with the wavelength ranging from 480 nm to 520nm is irradiated on a peroxide bleaching agent, so that the bleaching agent generates oxidation-reduction reaction with deposited pigments through enamel and dentin tubules in a short time, and the whitening effect is achieved. Although the technology of cold light tooth whitening is well established, there are still some problems with the cold light tooth whitening products on the market today. First, luminescent dental cosmetics require the application of a high concentration gel containing peroxide, typically hydrogen peroxide, to the teeth. Hydrogen peroxide can cause many side effects to teeth and oral cavity, such as damage of mechanical hardness of enamel surface, soft tissue irritation, tooth sensitivity, acute pulpitis and other problems. Thus, there are many potential risks associated with long-term use. In addition, in the cold light tooth whitening process, high-energy blue light is generally used as an excitation light source to catalyze hydrogen peroxide to perform oxidation-reduction reaction, so that the use concentration of the hydrogen peroxide is reduced, and the tooth whitening efficiency is improved. However, high-energy blue light easily stimulates eyes, which causes eye spots and dazzling, and even increases the probability of eye diseases. Meanwhile, high-energy blue light contacts eyes and skin, and potential safety hazards such as damage to eye structures, inhibition of melatonin secretion, influence on sleep quality and the like can be generated. Although the hazards of short-term use of blue light are not significant, long-term accumulation can still create a safety hazard to the health of the customer. Therefore, how to develop a tooth whitening gel which can be catalyzed by mild light and has no hydrogen peroxide is a problem to be solved for improving the safety and reliability of the cold light tooth whitening technology.
Disclosure of Invention
The invention aims to provide a cold light tooth whitening gel to solve the problem of potential safety hazard caused by using high-intensity blue light and hydrogen peroxide in the cold light tooth whitening process;
another object of the present invention is to provide a method for preparing the above luminescent tooth whitening gel;
it is still another object of the present invention to provide use of the above luminescent tooth whitening gel.
In order to achieve the purpose, the invention adopts the technical scheme that:
the cold light tooth whitening gel comprises the following raw materials of active ingredients in parts by weight: 3-18 parts of phthalimide peroxy caproic acid, 0.01-0.05 part of stabilizer, 5-10 parts of photocatalyst, 0.5-1.5 parts of thickening agent, 20-80 parts of humectant, 0.5-0.8 part of pH regulator, 0.05-0.15 part of sweetening agent, 0.1-0.3 part of essence and 20-40 parts of deionized water.
As a limitation, the stabilizer is disodium edetate;
the photocatalyst is nano porous zinc oxide or nitrogen-doped titanium dioxide;
the thickening agent is carbomer and/or sodium carboxymethylcellulose;
the humectant is glycerol and/or propylene glycol;
the pH regulator is triethanolamine;
the sweetener is saccharin sodium;
the essence is herba Menthae essence and/or herba Menthae Rotundifoliae essence.
The invention also provides a preparation method of the cold light tooth whitening gel, which comprises the following steps in sequence:
1) adding a thickening agent into deionized water, soaking and swelling, adding a humectant after carbomer is completely swelled, and stirring and uniformly mixing to obtain a mixture A;
2) maintaining the stirring condition, adding the stabilizer and the sweetener into the mixture A in batches, uniformly stirring, adding the photocatalyst, and uniformly stirring to obtain a mixture B;
3) maintaining the stirring condition, adding phthalimide peroxy caproic acid into the mixture B, uniformly stirring, adding a pH regulator, and regulating the pH value to completely thicken the thickener carbomer to obtain a mixture C;
4) maintaining the stirring condition, adding essence into the mixture C, and stirring and mixing uniformly to obtain the cold light tooth whitening gel.
As a limitation, the cold light tooth whitening gel is inspected and packaged.
As another limitation, in the step 1), the soaking temperature of the thickening agent is 65-85 ℃;
in the step 3), the final value of the pH value is adjusted to be 5.5-6.5.
The invention also provides an application of the cold light tooth whitening gel, and the application process is that the cold light tooth whitening gel is smeared on teeth and is irradiated by LED yellow light to finish tooth whitening.
As a limitation, the wavelength of the LED yellow light is 570-590 nm, and the irradiation time is 15-30 min.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
the invention relates to a cold light tooth whitening gel, which takes organic peroxide phthalimide peroxy caproic acid as a main raw material and takes nitrogen-doped silicon dioxide and/or nano porous zinc oxide as a photocatalyst. The photocatalyst can be excited by milder LED yellow light, the phthalimide peroxy caproic acid with low concentration is quickly decomposed by photochemical catalysis under the catalytic action of the excited photocatalyst to generate a strong oxide, and the strong oxide contains enough free radicals to promote the pigment tissues on the surface and in the deep layer of the tooth to be quickly decomposed, so that the effect of quickly whitening the tooth is achieved. Compared with blue light, the LED yellow light has small energy and is milder, and the LED yellow light has small irritation to eyes and skin, so that the LED yellow light is safer to use;
according to the invention, the organic peroxide phthalimide peroxycaproic acid is used for replacing hydrogen peroxide, so that the phthalimide peroxycaproic acid is milder and has no stimulation, and the problems of damaged mechanical hardness of the enamel surface, soft tissue stimulation, tooth sensitivity, acute pulpitis and the like caused by the hydrogen peroxide are solved;
the preparation and application process method is simple and safe, convenient to operate, low in equipment requirement and suitable for industrial production.
The cold light tooth whitening gel is suitable for cold light tooth whitening.
Detailed Description
The present invention is further illustrated by the following specific examples, which are to be construed as merely illustrative, and not limitative of the remainder of the disclosure.
Example 1 Cold light tooth whitening gel, preparation method and application
Cold light tooth whitening gel and preparation method thereof
1) Adding 1.2kg carbomer into 28kg deionized water, soaking at 70 deg.CSwelling, adding 20kg of glycerol and 30kg of propylene glycol after carbomer is completely swelled, stirring at 70 ℃ and 2500rpm for 22h, and mixing to obtain a mixture A1
2) Maintaining stirring, mixture A1Adding disodium edetate 0.03kg and saccharin sodium 0.07kg into 3 batches, stirring at 40 deg.C and 2500rpm for 5 hr, mixing, adding nanometer porous zinc oxide 8kg, stirring at 40 deg.C and 2500rpm for 5 hr, and mixing to obtain mixture B1
3) Mixture B1Adding 12kg phthalimide peroxy caproic acid, stirring at 40 deg.C and 2500rpm for 4 hr, mixing, detecting pH, adding 0.5kg triethanolamine according to the detection result, adjusting pH to 6.0, and completely thickening thickener carbomer to obtain mixture C1
4) Mixture C1Adding 0.2kg of mint essence, stirring at 40 ℃ and 2500rpm for 3h, and mixing uniformly to obtain the cold light tooth whitening gel.
5) Filling the cold light tooth whitening gel into a gel pen, and packaging to obtain the commercially available cold light tooth whitening gel.
The obtained cold light tooth whitening gel is suitable for cold light tooth whitening.
II) application of cold light tooth whitening gel
Selecting 100 subjects, and randomly dividing the subjects into two groups, wherein one group is coated with the cold light tooth whitening gel prepared in the example 1 during the test, and the other group is coated with the traditional cold light tooth whitening gel during the test;
a1) the luminescent tooth whitening gel prepared in the embodiment is respectively smeared on the teeth of 50 subjects, the smearing thickness is 0.5mm, the teeth are irradiated for 20min by 570nm LED yellow light, and the tooth whitening can be completed after the luminescent tooth whitening gel is used once a day for ten consecutive days. Significant whitening effect was achieved compared to untreated teeth, and no discomfort symptoms appeared. After 3 months, the cold light tooth whitening gel prepared in example 1 is smeared on the test subject again for 0.5mm, and is irradiated for 20min by 570nm LED yellow light, so that the cold light tooth whitening gel is used once a day for ten consecutive days, and the test operation is repeated for 3 times, so that the remarkable whitening effect can be realized each time, and no uncomfortable symptoms appear.
a2) The conventional cold light tooth whitening gel (purchased from Novashine) was applied to the teeth of another 50 subjects at a thickness of 0.5mm by blue light irradiation at 520nm for 20min, and thus was used once a day for ten consecutive days to complete tooth whitening. Compared with untreated, the whitening effect is remarkable, wherein 48 people have no uncomfortable symptoms, 1 person has tooth bleeding and pain symptoms, and 1 person has eye flower and dazzling symptoms. After 3 months, smearing the traditional cold light tooth whitening gel 0.5mm on the subject again, irradiating for 20min by 520nm blue light, using once a day for ten consecutive days, repeating the test operation for 3 times, and realizing remarkable whitening effect each time, wherein 47 people do not have discomfort, 2 people have gingival bleeding and pain, and 1 person has dim eyesight and dazzling symptoms; the third 45 people have no uncomfortable symptoms, 3 people have gingival bleeding and pain symptoms, and 2 people have dim eyesight and dazzling symptoms; no discomfort symptom appears in 45 people, gingival bleeding and pain symptom appears in 4 people, and eye flower and dazzling symptom appears in 3 people.
a3) The conventional cold light tooth whitening gel (purchased from Novashine) was applied to the teeth of another 50 subjects at a thickness of 0.5mm, and irradiated with 570nm LED yellow light for 20min to complete tooth whitening. The tooth whitening effect was not significant compared to the untreated teeth.
Examples 2-9 Cold light tooth whitening gel, preparation method and application
Examples 2 to 9 are a cold light tooth whitening gel, a preparation method and an application thereof, which have the same steps as example 1 except for the difference of process parameters, and are specifically shown in table 1; their application process is substantially the same as in example 1, except for the differences in trial parameters and results, as detailed in table 2:
TABLE 1 summary of the process parameters of examples 2 to 9
Figure BDA0002474807860000051
Figure BDA0002474807860000061
TABLE 2 summary of the process parameters of examples 2 to 9
Figure BDA0002474807860000062
Figure BDA0002474807860000071
Figure BDA0002474807860000081
In examples 2 to 9, the subjects were different persons, and the contents of the other parts were the same as in example 1.
It should be noted that the embodiments 1 to 9 are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms, and any person skilled in the art may use the above technical contents as a teaching to make changes or modifications to the equivalent embodiments with equivalent changes, but all those simple changes, equivalent changes and modifications made to the above embodiments without departing from the technical spirit of the present invention, and still all those embodiments fall within the scope of the present invention.

Claims (4)

1. The cold light tooth whitening gel is characterized in that raw materials for preparing active ingredients of the gel are packaged in parts by weight
Comprises the following steps: 3-18 parts of phthalimide peroxy caproic acid, 0.01-0.05 part of stabilizer, 5-10 parts of photocatalyst, 0.5-1.5 parts of thickening agent, 20-80 parts of humectant, 0.5-0.8 part of pH regulator, 0.05-0.15 part of sweetening agent, 0.1-0.3 part of essence and 20-40 parts of deionized water;
wherein the content of the first and second substances,
the stabilizer is disodium ethylene diamine tetraacetate;
the photocatalyst is nano porous zinc oxide or nitrogen-doped titanium dioxide;
the thickening agent is sodium carboxymethyl cellulose;
the humectant is glycerol and/or propylene glycol;
the pH regulator is triethanolamine;
the sweetener is saccharin sodium;
the essence is mint essence and/or spearmint essence;
the cold light tooth whitening gel is smeared on teeth and is irradiated by LED yellow light to finish tooth whitening;
the wavelength of the LED yellow light is 570-590 nm, and the irradiation time is 15-30 min.
2. The method of preparing the luminescent tooth whitening gel of claim 1, wherein the method of preparing the same
Comprises the following steps which are carried out in sequence:
1) adding a thickening agent into deionized water for soaking, adding a humectant, and uniformly mixing to obtain a mixture A;
2) adding a stabilizer and a sweetening agent into the mixture A, uniformly mixing, adding a photocatalyst, and uniformly mixing to obtain a mixture B;
3) adding phthalimide peroxy caproic acid into the mixture B, uniformly mixing, adding a pH regulator, and regulating the pH value to obtain a mixture C;
4) and adding essence into the mixture C, and uniformly mixing to obtain the cold light tooth whitening gel.
3. The method of preparing the cold light tooth whitening gel according to claim 2, wherein the cold light tooth whitening gel is inspected and packaged.
4. The method of preparing the cold light tooth whitening gel according to claim 2 or 3,
in the step 1), the soaking temperature of the thickening agent is 65-85 ℃;
in the step 3), the final value of the pH value is adjusted to be 5.5-6.5.
CN202010360469.1A 2020-04-30 2020-04-30 Cold light tooth whitening gel, preparation method and application Active CN111494230B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010360469.1A CN111494230B (en) 2020-04-30 2020-04-30 Cold light tooth whitening gel, preparation method and application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010360469.1A CN111494230B (en) 2020-04-30 2020-04-30 Cold light tooth whitening gel, preparation method and application

Publications (2)

Publication Number Publication Date
CN111494230A CN111494230A (en) 2020-08-07
CN111494230B true CN111494230B (en) 2021-09-17

Family

ID=71876546

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010360469.1A Active CN111494230B (en) 2020-04-30 2020-04-30 Cold light tooth whitening gel, preparation method and application

Country Status (1)

Country Link
CN (1) CN111494230B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113476333A (en) * 2020-08-19 2021-10-08 唯艺科学研究(深圳)有限公司 PAP-containing gel
CN113041168A (en) * 2021-04-10 2021-06-29 江西师范大学 Active whitening tooth paste and preparation method thereof
CN113069374A (en) * 2021-04-10 2021-07-06 江西师范大学 Whitening dentifrice containing organic peroxide and preparation method thereof
CN113499767B (en) * 2021-06-21 2024-03-15 中国科学院海洋研究所 Visible light catalytic modified titanium dioxide and preparation method and application thereof
CN113995697A (en) * 2021-12-03 2022-02-01 唯艺科学研究(深圳)有限公司 Optical whitening oral care composition and tooth whitening method

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ID28828A (en) * 1998-09-25 2001-07-05 Unilever Nv COMPOSITION OF MOUTH CARE BY IMPROVING WHITE DENTAL EFFECTS
KR101436126B1 (en) * 2013-09-27 2014-09-01 주식회사 덴트화이트 Dental bleaching composition
CN106726648A (en) * 2017-01-23 2017-05-31 宋光荣 A kind of nano photo-catalytic tooth whitening gel
CN106726702A (en) * 2017-03-13 2017-05-31 广州欧诺洁个人护理用品有限公司 A kind of tooth whitening products without hydrogen peroxide
CN107582415B (en) * 2017-08-03 2020-08-04 南昌大学 Whitening toothpaste with visible light excited oxidation-reduction reaction and preparation method thereof
CN109998933A (en) * 2019-03-04 2019-07-12 西安蓝极医疗电子科技有限公司 A kind of tooth whitening gel and preparation method thereof, application method

Also Published As

Publication number Publication date
CN111494230A (en) 2020-08-07

Similar Documents

Publication Publication Date Title
CN111494230B (en) Cold light tooth whitening gel, preparation method and application
US6231343B1 (en) Method for bleaching discolored tooth by titanium dioxide photocatalyst
AU771948B2 (en) Tooth bleaching compositions and method of bleaching discolored tooth
Kishi et al. Effect of light units on tooth bleaching with visible-light activating titanium dioxide photocatalyst
AU2002226726B2 (en) Tooth bleaching agents and method of bleaching teeth
EP1054642B1 (en) Light-activated tooth whitening composition and method of using same
Cuppini et al. In vitro evaluation of visible light-activated titanium dioxide photocatalysis for in-office dental bleaching
CA2213476C (en) Method for preparing a preparation for bleaching teeth, treating skin complaints, and mucous membrane disorders
CN111759751B (en) Whitening toothpaste excited by blue light LED and preparation method thereof
Ahrari et al. The efficacy and complications of several bleaching techniques in patients after fixed orthodontic therapy: A randomized clinical trial
EP2130528A1 (en) Tooth-bleaching material and method of bleaching tooth
EP1393711B1 (en) Photocatalytic bleaching agent for teeth and method
Kyaw et al. Effect of sodium fluoride pretreatment on the efficacy of an in‐office bleaching agent: An in vitro study
EP0401454A2 (en) Hair-care composition for avoiding oxidation damage to hair
Schneider et al. Efficacy of Ozonized Sunflower Oil with Tea Tree Oil as Desensitizing Agents in Dental Bleaching: Randomized and Double-Blind Clinical Trial
CN115463041B (en) Anti-sensitivity toothpaste with cold light whitening effect and preparation method thereof
JP4852714B2 (en) Tooth bleaching material
CN113499767A (en) Visible light catalytic modified titanium dioxide and preparation method and application thereof
AU2002318865B2 (en) Dental compositions containing hyaluronic acid
WO2023277054A1 (en) Oral composition and method for producing same
US20090285767A1 (en) Use of ozonated liquids and peroxides to whiten teeth
Elmarakby Dental Bleaching: How Far Distance between Patient Demands and what Actually Achieved
CN115252777B (en) In-situ whitening caries-preventing gel and preparation method thereof
Sayoo et al. Evaluation of Two in Office Bleaching Systems with and without Laser Activation: An In Vitro Study
JP2002363051A (en) Beautifying agent for removing colored material of tooth

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20211111

Address after: 330000 building 182, Nanchang Jiahai Industrial Park, No. 2799, Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province

Patentee after: NANCHANG DENTAL TECHNOLOGY Co.,Ltd.

Address before: 330022 No. 99, Ziyang Avenue, Nanchang City, Jiangxi Province

Patentee before: Jiangxi Normal University

TR01 Transfer of patent right
CP03 Change of name, title or address

Address after: 330302 Makou Industrial Park, Yongxiu County, Jiujiang City, Jiangxi Province

Patentee after: Jiangxi Dengte Technology Co.,Ltd.

Country or region after: China

Address before: 330000 building 182, Nanchang Jiahai Industrial Park, 2799 Tianxiang Avenue, high tech Zone, Nanchang City, Jiangxi Province

Patentee before: NANCHANG DENTAL TECHNOLOGY Co.,Ltd.

Country or region before: China