CN114271973A - Environment-friendly nontoxic false tooth and manufacturing method thereof - Google Patents
Environment-friendly nontoxic false tooth and manufacturing method thereof Download PDFInfo
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- CN114271973A CN114271973A CN202111651591.5A CN202111651591A CN114271973A CN 114271973 A CN114271973 A CN 114271973A CN 202111651591 A CN202111651591 A CN 202111651591A CN 114271973 A CN114271973 A CN 114271973A
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Abstract
The invention relates to the technical field of false tooth manufacturing, in particular to an environment-friendly nontoxic false tooth and a manufacturing method thereof, the environment-friendly nontoxic false tooth comprises a tooth crown with the size matched with that of a residual tooth, a first false tooth bracket and a second false tooth bracket are arranged at the bottom of the tooth crown, a screw rod is spirally inserted in a first threaded hole, a second threaded hole and a third threaded hole, the first false tooth bracket and the second false tooth bracket are respectively provided with a first clamping arm and a second clamping arm, the first clamping arm and the second clamping arm are arranged on different sides, the first clamping arm and the second clamping arm are arranged on the same side, the first clamping arm and the second clamping arm are used for fixing teeth on two sides of the residual tooth, one inward side of the first clamping arm is provided with a protruding inserting column, one side of the second clamping arm facing the first clamping arm is provided with a jointing surface, the jointing surface has a certain radian, the technical scheme realizes the fixation of the tooth crown by clamping teeth on two sides of a patient, the stability of the dental crown of the artificial tooth is ensured and the foreign body sensation is reduced.
Description
Technical Field
The invention relates to the technical field of denture manufacturing, in particular to an environment-friendly and nontoxic denture. The invention also relates to a manufacturing method of the environment-friendly and nontoxic false tooth.
Background
In daily life, many people have some teeth which are defective to different degrees for various reasons, and although the existing methods for repairing the residual teeth are many, the existing methods have some defects to different degrees, and the analysis is as follows:
1. and (4) making a crown sleeve, grinding teeth adjacent to the residual teeth, and then making the crown sleeve to restore the residual teeth. Although the tooth repairing liquid can be repaired in about one week, the tooth of a patient is greatly damaged, and the patient feels more pain during the repairing process.
2. The dental implant can be completed through an operation, the repair time is long, 6 to 12 months are needed, and according to the condition of the dental bone of a patient, the dental implant can not be repaired by each case, and each repaired case can not be successfully repaired, so that the dental implant is low in applicability and high in price.
3. When the movable false tooth is made, the mouth of a patient has strong foreign body sensation, is stuffed with food, has poor chewing capability and poor retention effect, and must be taken off and cleaned after eating every day.
Chinese patent application No. CN201610567536.0 discloses a fixed denture for repairing a residual tooth, comprising a denture crown and first and second denture bases for supporting the denture crown, the first and second denture bases being used to wrap lingual and buccal sides of a patient's tooth, respectively, so that the first and second denture bases stably support the denture crown, and a method for preparing the same. However, the two fixed ends of the denture base are positioned at the same side, the two denture base are relatively fixed and are unstable for clamping the two sides of the teeth, the looseness is easy to occur during long-term use, the foreign body sensation in the mouth of a patient is strong, the denture crown is supported by the traditional wax-type material in a cladding casting mode, the manufacturing period is long, and the precision is to be improved.
Disclosure of Invention
Accordingly, there is a need to provide an environment-friendly and non-toxic denture and a manufacturing method thereof.
In order to solve the problems of the prior art, the invention adopts the technical scheme that:
an environment-friendly nontoxic artificial tooth comprises a dental crown matched with a residual tooth in size, wherein a first threaded hole is formed in the center of the dental crown, the first threaded hole penetrates through the dental crown from top to bottom, a first artificial tooth bracket and a second artificial tooth bracket are arranged at the bottom of the dental crown, a second threaded hole is formed in the first artificial tooth bracket, a third threaded hole is formed in the second artificial tooth bracket, the first threaded hole, the second threaded hole and the third threaded hole are identical in size, axes of the first threaded hole, the second threaded hole and the third threaded hole are in the same straight line, a screw is inserted into the first threaded hole, the second threaded hole and the third threaded hole in a spiral mode, a first clamping arm and a second clamping arm are arranged on the first artificial tooth bracket and the second artificial tooth bracket respectively, the first clamping arm and the second clamping arm are arranged on different sides of the first clamping arm and the second clamping arm, the first clamping arm and the second clamping arm are used for fixing teeth on two sides of the residual tooth, and a protruding inserting column is arranged on one inward side of the first clamping arm, one side of second arm lock towards first arm lock is provided with the binding face, and the binding face has certain radian.
Preferably, the dental crown is made of Hetian jade material.
Preferably, the first denture framework and the second denture framework are integrally formed by cobalt-chromium alloy or nickel-chromium alloy.
Preferably, a lower concave surface is arranged at the upper opening of the first threaded hole of the dental crown, the diameter of the lower concave surface is the same as the size of the pressing part at the top of the screw rod, and the depth of the lower concave surface is the same as the thickness of the pressing part of the screw rod.
Preferably, the two sides of the dental crown are provided with positioning convex blocks which horizontally protrude towards the teeth at the two sides of the dental crown.
Preferably, the first clamping arm and the second clamping arm of the first denture bracket and the second denture bracket are respectively provided with a protruding surface of the first denture bracket and a protruding surface of the second denture bracket, the thickness of the first clamping arm and the second clamping arm is twice that of the first denture bracket and the second denture bracket, when the first denture bracket and the second denture bracket are attached, one end of the first clamping arm and one end of the second clamping arm are attached to the peripheral sides of the first denture bracket and the second denture bracket, and the first clamping arm and the second clamping arm on the first denture bracket and the second denture bracket are kept parallel and level.
An environment-friendly nontoxic false tooth manufacturing method comprises the following steps:
s1, pre-molding: acquiring data of teeth of a patient through three-dimensional scanning, analyzing the condition of the teeth of the patient according to the scanned tooth data, and designing the shape of the false tooth through dental design software to obtain a D model of the teeth;
s2, manufacturing a first denture bracket and a second denture bracket: a first denture bracket and a second denture bracket are coated and cast on the obtained D model of the patient tooth by adopting wax pattern materials;
s3, manufacturing a dental crown;
s4, drilling and tapping: fixing and rotating the dental crown, the first denture bracket and the second denture bracket, and then respectively putting the dental crown, the first denture bracket and the second denture bracket into a tapping machine for tapping to obtain a first threaded hole which penetrates through the dental crown on the dental crown, and a second threaded hole and a third threaded hole which are the same in size as the first threaded hole and are positioned on the same straight line with the axis on the first denture bracket and the second denture bracket;
s5, grinding and polishing: polishing the tapped dental crown, the first denture bracket and the second denture bracket, performing porcelain coating and porcelain turning modification treatment after polishing, and cleaning after finishing processing;
s6, assembling a dental crown, a first denture bracket and a second denture bracket to form a denture; the dental crown, the first denture bracket and the second denture bracket are sequentially and spirally arranged on the screw rod, and the pressing part at the top of the screw rod is hidden into the lower concave surface at the top of the dental crown.
Preferably, step S2 further includes:
s2a, obtaining data of bad teeth on the tooth model of the patient through three-dimensional scanning, and then polishing the top of the bad teeth in the tooth D model obtained through scanning at a certain scale;
s2b, wrapping the wax pattern material on the polished residual teeth and the tops and the peripheral sides of two good teeth adjacent to the residual teeth to obtain a molded mold cavity;
s2c, processing the obtained molding die cavity, reserving a joint part with the buccal side of the tooth to form a joint surface of the first denture bracket, adding a material in the middle of the obtained die cavity to ensure that the upper side and the lower side of the middle part of the first denture bracket are molded smoothly, and adding an insert column molding material of the first denture bracket at a proper position of the die cavity formed by a wax pattern material and jointed with the buccal side of the tooth model;
s2d, adding chromium alloy or nickel-chromium alloy raw materials, and casting two first denture brackets in a wax pattern material in a covering mode, wherein the first denture brackets are turned over to form second denture brackets.
Preferably, step S3 further includes:
s3a, selecting a nephrite raw material with a proper color and size;
s3b, designing the shape of the dental crown through dental design software according to the size data of the damaged tooth obtained by three-dimensional scanning;
s3c, designing the shapes of the positioning bumps on the two sides of the dental crown through dental design software;
and S3d, carrying out three-dimensional fine carving on the selected Hetian jade raw material according to the data obtained by the design software, and finally manufacturing the dental crown which is in percent accordance with the original tooth form of the patient and has the positioning convex blocks with two sides protruding towards the good teeth.
Preferably, step S4 further includes:
s4a, drilling a hole with a certain depth at the top of the dental crown to form a concave part matched with the size of the pressing part of the screw rod.
Compared with the prior art, the beneficial effect of this application is:
1. the dental crown made of the Hetian jade material fills the residual tooth part of a patient, and the dental crown made of the Hetian jade fully utilizes the natural properties of pure nature, no toxicity and health preservation and health care of the Hetian jade, has good cleaning and nutrition health care effects on the oral cavity, can prevent and treat various dental diseases and oral diseases, and also expands the application range of the Hetian jade raw material.
2. According to the dental crown, the first artificial tooth bracket and the second artificial tooth bracket are arranged at the bottom of the dental crown, when the first artificial tooth bracket and the second artificial tooth bracket are spliced, the first clamping arms of the first artificial tooth bracket and the second artificial tooth bracket are positioned on the buccal side surface of a patient's tooth, the second clamping arms of the first artificial tooth bracket and the second artificial tooth bracket are positioned on the lingual side surface of the patient's tooth, the first clamping arms and the second clamping arms clamp the teeth on two sides of the patient's residual tooth to fix the position of the dental crown, and a worker can drive the second clamping arms to clamp the lingual side surface of the tooth when pushing the first clamping arms towards the tooth, so that the clamping force is ensured.
3. According to the artificial tooth, the protruded inserting column is arranged on the inward side of the first clamping arm, when the artificial tooth is used, a worker drills two positioning holes matched with the protruding column on the adjacent tooth cheek side surfaces on two sides of a residual tooth of a patient, the inserting column can ensure that the positions of the first artificial tooth bracket and the second artificial tooth bracket are stable, the position of a dental crown is further ensured to be stable, the patient does not have much foreign body sensation in the wearing process, and the comfort level is greatly improved.
4. According to the invention, the concave surface is arranged at the first threaded hole at the top of the dental crown to carry out hidden installation on the pressing part of the screw rod, so that the phenomenon that the screw rod protrudes out of the top of the dental crown and causes a patient to have foreign body sensation in the using process is avoided, the pressing part can press down the dental crown to be fixed with the first denture bracket and the second denture bracket, and the stability of the dental crown is improved.
5. The invention fixes the dental crown by arranging the positioning convex blocks on the two sides of the dental crown, inserting the positioning convex blocks into the grooves corresponding to the positioning convex blocks, which are ground on the tops of the adjacent teeth on the two sides of the residual tooth of the patient, thereby improving the stability of the dental crown on the screw rod.
Drawings
Fig. 1 is a perspective view of a denture of the present application;
fig. 2 is a front view of a denture of the present application;
fig. 3 is an exploded perspective view of a denture of the present application;
FIG. 4 is a perspective view of a first denture template of the present application;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is a front view of a first denture template of the present application;
FIG. 7 is a perspective view of a dental crown of the present application;
FIG. 8 is a flow chart of a method of manufacture of the present application;
FIG. 9 is a flowchart of step S2 of the method of manufacture of the present application;
FIG. 10 is a flowchart of step S3 of the method of manufacture of the present application;
the reference numbers in the figures are:
1-dental crown; 1 a-a first threaded hole; 1a 1-lower concave surface; 1 b-positioning bumps;
2-a first denture template; 2 a-a second threaded hole; 2 b-a first arm lock; 2b 1-insert post; 2 c-a second clamp arm; 2c 1-mating face;
3-a second denture base; 3 a-a third threaded hole;
4-screw rod; 4 a-stitching.
Detailed Description
For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.
As shown in fig. 1 to 5, the present application provides:
an environment-friendly nontoxic artificial tooth comprises a dental crown 1 which is matched with a residual tooth in size, wherein a first threaded hole 1a is formed in the center of the dental crown 1, the first threaded hole 1a penetrates through the dental crown 1 up and down, a first artificial tooth bracket 2 and a second artificial tooth bracket 3 are arranged at the bottom of the dental crown 1, a second threaded hole 2a is formed in the first artificial tooth bracket 2, a third threaded hole 3a is formed in the second artificial tooth bracket 3, the first threaded hole 1a, the second threaded hole 2a and the third threaded hole 3a are identical in size, the axes of the first threaded hole 1a, the second threaded hole 2a and the third threaded hole 3a are on the same straight line, a screw rod 4 is spirally inserted into the first threaded hole 1a, the second threaded hole 2a and the third threaded hole 3a, a first clamping arm 2b and a second clamping arm 2c are respectively arranged on the first artificial tooth bracket 2 and the second artificial tooth bracket 3, the first clamping arm 2b and the second clamping arm 2c are arranged on different sides, the first artificial tooth bracket 2 and the second clamping arm 2b are on the same side, the first clamping arm 2b and the second clamping arm 2c are used for fixing teeth on two sides of a residual tooth, a protruding insertion column 2b1 is arranged on one inward side of the first clamping arm 2b, a binding surface 2c1 is arranged on one side of the second clamping arm 2c, which faces the first clamping arm 2b, and the binding surface 2c1 has a certain radian.
Based on the above embodiments, the technical problem that the present application intends to solve is how to realize a denture attachment that is conveniently installed on a patient's tooth. Therefore, the dental crown 1 is used for filling a tooth stump of a patient, the bottom of the dental crown 1 is provided with a first artificial tooth bracket 2 and a second artificial tooth bracket 3, the dental crown 1, the first artificial tooth bracket 2 and the second artificial tooth bracket 3 are both spirally arranged on a screw rod 4 for fixing, the first artificial tooth bracket 2 and the second artificial tooth bracket 3 are provided with a first clamping arm 2b and a second clamping arm 2c which are different in side and side, the first clamping arm 2b and the second clamping arm 2c clamp teeth on two sides of the tooth stump of the patient to fix the position of the dental crown 1, after the first artificial tooth bracket 2 and the second artificial tooth bracket 3 are spliced, the first clamping arm 2b of the first artificial tooth bracket 2 and the second artificial tooth bracket 3 is positioned on the buccal side surface of the tooth of the patient, the second clamping arm 2c of the first artificial tooth bracket 2 and the second artificial tooth bracket 3 is positioned on the lingual side surface of the tooth of the patient, and a worker can drive the second clamping arm 2c to clamp the lingual side surface of the tooth when pushing the first artificial tooth bracket 2b to the tooth, guarantee the centre gripping dynamics, first arm lock 2b one side inwards is provided with outstanding post 2b1 of inserting, the staff drills out two and inserts the identical locating hole of post 2b1 at the adjacent tooth buccal surface in patient's incomplete tooth both sides during the use of this artificial tooth, it is stable with the position of second artificial tooth bracket 3 that first artificial tooth bracket 2 can be guaranteed to insert post 2b1, and then guarantee the stable in position of dental crown 1, the patient does not have more foreign body sensation at the in-process of wearing, the comfort level promotes by a wide margin.
Further, as shown in fig. 1:
the dental crown 1 is made of Hetian jade materials.
Based on the above embodiments, the technical problem to be solved by the present application is how to ensure the environment protection and non-toxicity of the denture. Therefore, the dental crown 1 is made of the Hetian jade material, and the denture material is applied to the human body and the joint of the human body, so that the ideal denture material has no toxicity, no irritation, no carcinogenicity, no distortion and the like to the human body; the natural tremolite structural Hetian jade mainly comprises oxygen (O), magnesium (Mg), silicon (Si), calcium (Ca) and a small amount of aluminum (Al) and potassium (K); hardness: 6-6.5; density: 2.96-3.17 g/cc; color: white, bluish white, cyan, yellow, black, blue, sugar; the white color has a plurality of chromaticities, and more choices can be provided according to personal conditions of the demanders.
According to chemical analysis, the Hetian jade also contains various trace elements which are beneficial to human bodies, such as zinc, magnesium, iron, copper, selenium, chromium, manganese, selenium, cobalt and the like, and the trace elements can be used for removing diseases, protecting health and prolonging life of people, for example: zinc can activate insulin, regulate energy metabolism, maintain immunity, and has anticancer, teratogenesis preventing, and antiaging effects. The manganese element can resist the damage of free radicals to human bodies, participate in the synthesis of proteins and vitamins, promote blood circulation, accelerate metabolism, resist aging, prevent senile dementia, osteoporosis, angiosclerosis and the like. Selenium element is a component of bone cystamine peroxidase, and can catalyze toxic peroxide to be reduced into harmless hydroxyl compounds, so that a biological membrane is protected from being damaged, and an anti-aging effect is achieved. In the embodiment, the dental crown 1 made of the Hetian jade fully utilizes the natural properties of pure nature, no toxicity and health preservation of the Hetian jade, has good cleaning and nutrition health care effects on the oral cavity, can prevent and treat various dental diseases and oral diseases, and simultaneously expands the application range of the Hetian jade raw materials.
Further, as shown in fig. 1:
the first denture framework 2 and the second denture framework 3 are integrally formed by cobalt-chromium alloy or nickel-chromium alloy.
Based on the above embodiments, the technical problem to be solved by the present application is how to ensure that the materials of the first denture framework 2 and the second denture framework 3 are healthy and stable. Therefore, the first denture bracket 2 and the second denture bracket 3 are integrally formed through chromium alloy or nickel-chromium alloy, the health can be guaranteed while the structural hardness of the first denture bracket 2 and the second denture bracket 3 is guaranteed, the clamping stability of the first denture bracket 2 and the second denture bracket 3 is guaranteed, the dental crown 1 fixed by the first denture bracket 2 and the second denture bracket 3 can be prevented from loosening when in use, the first denture bracket 2 and the second denture bracket 3 can be subjected to porcelain treatment to enable the colors of the first denture bracket 2 and the second denture bracket 3 to be similar to the color of the gum of a patient, and therefore the overall aesthetic degree is improved.
Further, as shown in fig. 3 and 7:
the upper opening of the first threaded hole 1a of the dental crown 1 is provided with a lower concave surface 1a1, the diameter of the lower concave surface 1a1 is the same as the size of the pressing part 4a at the top of the screw rod 4, and the depth of the lower concave surface 1a1 is the same as the thickness of the pressing part 4a of the screw rod 4.
Based on the above-described embodiments, the technical problem that the present application intends to solve is how to ensure the stability of the crown 1 on the screw 4. Therefore, the lower concave surface 1a1 is arranged at the first threaded hole 1a at the top of the dental crown 1 to carry out hidden installation on the pressing part 4a of the screw rod 4, the situation that the screw rod 4 protrudes out of the top of the dental crown 1 to cause a patient to have foreign body sensation in the using process is avoided, the pressing part 4a can press down the dental crown 1 to be fixed with the first denture bracket 2 and the second denture bracket 3, and the stability of the dental crown 1 is improved.
Further, as shown in fig. 7:
the two sides of the dental crown 1 are provided with positioning projections 1b, and the positioning projections 1b horizontally protrude towards the teeth at the two sides of the dental crown 1.
Based on the above-described embodiments, the technical problem that the present application intends to solve is how to enhance the stability of the crown 1 on the screw 4. For this reason, this application sets up location lug 1b in the both sides of dental crown 1, and the staff is polished out at the adjacent tooth top in the both sides of incomplete tooth of patient and is fixed dental crown 1 through the joint in the fluting of incomplete tooth both sides tooth to location lug 1b to improve the stability of dental crown 1 on screw rod 4.
Further, as shown in fig. 4 and 6:
the first clamping arm 2b and the second clamping arm 2c of the first denture bracket 2 and the second denture bracket 3 are respectively provided with a protruding surface of the first denture bracket 2 and the second denture bracket 3, the thickness of the first clamping arm 2b and the second clamping arm 2c is twice of that of the first denture bracket 2 and the second denture bracket 3, when the first denture bracket 2 is attached to the second denture bracket 3, one end of the first clamping arm 2b and one end of the second clamping arm 2c are attached to the peripheral sides of the first denture bracket 2 and the second denture bracket 3, and the first clamping arm 2b and the second clamping arm 2c on the first denture bracket 2 and the second denture bracket 3 are kept in a flush state.
Based on the above embodiment, when the first denture bracket 2 and the second denture bracket 3 are spliced, the protrusions at the two sides of the first clamping arm 2b and the second clamping arm 2c and the positions of the first denture bracket 2 and the second denture bracket 3 limit the peripheral sides of the first denture bracket 2 and the second denture bracket 3, and the first clamping arm 2b and the second clamping arm 2c do not affect the rotation around the axis of the screw rod 4, and the thickness of the first clamping arm 2b and the second clamping arm 2c is twice that of the first denture bracket 2 and the second denture bracket 3, so that the horizontal heights of the first clamping arm 2b and the second clamping arm 2c at the two sides of the spliced first denture bracket 2 and the spliced second denture bracket 3 are the same, thereby being beneficial to clamping the two sides of the residual tooth by the first clamping arm 2b and the second clamping arm 2 c.
Further, as shown in fig. 8:
an environment-friendly nontoxic false tooth manufacturing method comprises the following steps:
s1, pre-molding: acquiring data of teeth of a patient through three-dimensional scanning, analyzing the condition of the teeth of the patient according to the scanned tooth data, and designing the shape of the false tooth through dental design software to obtain a 3D model of the teeth;
s2, manufacturing the first denture framework 2 and the second denture framework 3: the first denture bracket 2 and the second denture bracket 3 are coated and cast by wax-type materials on the obtained 3D model of the patient's teeth;
s3, manufacturing a dental crown 1;
s4, drilling and tapping: fixing and rotating the dental crown 1, the first denture bracket 2 and the second denture bracket 3, then respectively putting the dental crown 1, the first denture bracket 2 and the second denture bracket 3 into a tapping machine for tapping to obtain a first threaded hole 1a which penetrates through the dental crown 1 on the dental crown 1, and a second threaded hole 2a and a third threaded hole 3a which have the same size as the first threaded hole 1a and have the same straight line axis on the first denture bracket 2 and the second denture bracket 3;
s5, grinding and polishing: polishing the tapped dental crown 1, the first denture bracket 2 and the second denture bracket 3, performing porcelain coating and porcelain turning modification treatment after polishing, and cleaning after finishing processing;
s6, assembling the dental crown 1, the first denture framework 2 and the second denture framework 3 to form a denture; the dental crown 1, the first denture framework 2 and the second denture framework 3 are sequentially and spirally arranged on the screw rod 4, and the stitching part 4a at the top of the screw rod 4 is hidden into the concave surface 1a1 at the top of the dental crown 1.
Based on the above embodiments, the technical problem to be solved by the present application is how to obtain accurate data of the patient's teeth to make a denture that conforms to the original tooth form of the patient, thereby reducing the foreign body sensation of the patient wearing a fixed denture. Therefore, the original tooth data of the patient are obtained through three-dimensional scanning, the corresponding tooth model is manufactured through 3D printing, leftover materials basically do not exist in the 3D printing compared with the traditional tooth mold manufacturing technology, the manufacturing efficiency is improved, materials are saved, the dental crown 1, the first denture bracket 2 and the second denture bracket 3 which accord with the tooth form of the patient are manufactured according to the tooth mold after the 3D printing, the dental crown 1, the first denture bracket 2 and the second denture bracket 3 are drilled and tapped after the manufacturing is completed, and the dental crown 1, the first denture bracket 2 and the second denture bracket 3 are sequentially arranged on the screw rod 4 to complete the assembly of the denture, so that the parts of the whole denture can be synchronously manufactured, the installation process is simple, the shape of the manufactured dental crown 1 is matched with the original tooth form of a patient, and the foreign body sensation of the patient after wearing the dental crown is reduced.
Further, as shown in fig. 9:
step S2 further includes:
s2a, obtaining data of bad teeth on the tooth model of the patient through three-dimensional scanning, and then polishing the tops of the bad teeth in the tooth 3D model obtained through scanning at a certain scale;
s2b, wrapping the wax pattern material on the polished residual teeth and the tops and the peripheral sides of two good teeth adjacent to the residual teeth to obtain a molded mold cavity;
s2c, processing the obtained molding die cavity, reserving a joint part with the cheek side surface of a tooth to form a joint surface 2c1 of the first denture bracket 2, adding a material in the middle of the obtained die cavity to ensure that the upper side and the lower side of the middle part of the first denture bracket 2 are smoothly molded, and adding an insert column 2b1 molding material of the first denture bracket 2 at a proper position of the die cavity obtained by a wax type material, which is jointed with the cheek side surface of the tooth model;
s2d, adding chromium alloy or nickel-chromium alloy raw materials, covering and casting two first denture brackets 2 in a wax-type material, and turning over the first denture brackets 2 to obtain second denture brackets 3.
Based on the above embodiment, the attaching surfaces 2c1 of the first denture bracket 2 and the second denture bracket 3 obtained by the method have the radian corresponding to the teeth of the patient, so that the wearing comfort is improved, the gap between the first clamping arm 2b and the second clamping arm 2c after the first clamping arm and the second clamping arm are attached to the teeth is reduced, and the position of drilling holes in the teeth of the patient is determined more accurately by the position of the insertion column 2b1 on the tooth model.
Further, as shown in fig. 10:
step S3 further includes:
s3a, selecting a nephrite raw material with a proper color and size;
s3b, designing the shape of the dental crown 1 through dental design software according to the size data of the damaged tooth obtained by three-dimensional scanning;
s3c, designing the shapes of the positioning bumps 1b at the two sides of the dental crown 1 through dental design software;
and S3d, carrying out three-dimensional fine carving on the selected Hetian jade raw material according to the data obtained by the design software, and finally manufacturing the dental crown 1 which is in percent accordance with the original tooth form of the patient and has the positioning convex blocks 1b with two sides protruding towards the good teeth.
Based on the embodiment, the dental crown 1 obtained through the step has the tooth shape matched with the original tooth of the patient, and the staff can polish the corresponding notch on the tooth in the mouth of the patient according to the corresponding position of the positioning bump 1b on the tooth model, so that the positioning bump 1b can accurately position the dental crown 1, and the stability of the dental crown 1 is improved.
Further, as shown in fig. 7:
step S4 further includes:
s4a, drilling a hole with a certain depth on the top of the dental crown 1 to form a lower concave surface 1a1 part which is matched with the size of the pressing part 4a of the screw rod 4.
Based on the above embodiment, the lower concave surface 1a1 is arranged at the first threaded hole 1a at the top of the dental crown 1 to mount the pressing part 4a of the screw rod 4 in a hidden manner, so that the situation that the screw rod 4 protrudes out of the top of the dental crown 1 to cause a patient to feel foreign body in the using process is avoided, the pressing part 4a can press down the dental crown 1 to be fixed with the first denture bracket 2 and the second denture bracket 3, and the stability of the dental crown 1 is improved.
The above examples, which are intended to represent only one or more embodiments of the present invention, are described in greater detail and with greater particularity, and are not to be construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An environment-friendly nontoxic denture comprises a dental crown (1) matched with a residual tooth in size, and is characterized in that a first threaded hole (1 a) is formed in the center of the dental crown (1), the first threaded hole (1 a) penetrates through the dental crown (1) up and down, a first denture bracket (2) and a second denture bracket (3) are arranged at the bottom of the dental crown (1), a second threaded hole (2 a) is formed in the first denture bracket (2), a third threaded hole (3 a) is formed in the second denture bracket (3), the first threaded hole (1 a), the second threaded hole (2 a) and the third threaded hole (3 a) are identical in size, axes of the first threaded hole (1 a), the second threaded hole (2 a) and the third threaded hole (3 a) are in the same straight line, a screw rod (4) is spirally inserted into the first threaded hole (1 a), the second threaded hole (2 a) and the third threaded hole (3 a), a first clamping arm (2 b) and a second clamping arm (2 c) are arranged on the first denture bracket (2) and the second denture bracket (3), different sides of the first clamping arm (2 b) and the second clamping arm (2 c) are arranged, the first clamping arm (2 b) on the first denture bracket (2) and the second denture bracket (3) are arranged on the same side, the first clamping arm (2 b) and the second clamping arm (2 c) are used for fixing teeth on two sides of the residual tooth, one inward side of the first clamping arm (2 b) is provided with a protruding inserting column (2 b 1), one side of the second clamping arm (2 c) facing the first clamping arm (2 b) is provided with a binding surface (2 c 1), and the binding surface (2 c 1) has a certain radian.
2. An environment-friendly non-toxic denture according to claim 1, wherein said dental crown (1) is made of a Hetian jade material.
3. An environment-friendly and non-toxic denture as claimed in claim 1, wherein the first denture frame (2) and the second denture frame (3) are integrally formed of cobalt chromium alloy or nickel chromium alloy.
4. The environment-friendly and non-toxic artificial tooth according to claim 1, wherein a lower concavity (1 a 1) is provided at an upper side opening of the first threaded hole (1 a) of the dental crown (1), a diameter of the lower concavity (1 a 1) is the same as a size of the pressing part (4 a) at the top of the screw (4), and a depth of the lower concavity (1 a 1) is the same as a thickness of the pressing part (4 a) of the screw (4).
5. An environment-friendly and non-toxic artificial tooth according to claim 1, wherein the two sides of the dental crown (1) are provided with positioning protrusions (1 b), and the positioning protrusions (1 b) horizontally protrude toward the teeth on the two sides of the dental crown (1).
6. The environment-friendly and nontoxic denture as claimed in claim 1, wherein the first clamping arm (2 b) and the second clamping arm (2 c) of the first denture bracket (2) and the second denture bracket (3) are respectively provided with a protruding surface of the first denture bracket (2) and the second denture bracket (3), the thickness of the first clamping arm (2 b) and the second clamping arm (2 c) is twice of the thickness of the first denture bracket (2) and the second denture bracket (3), when the first denture bracket (2) and the second denture bracket (3) are attached, one end of the first clamping arm (2 b) and one end of the second clamping arm (2 c) are attached to the periphery of the first denture bracket (2) and the second denture bracket (3), and the first clamping arm (2 b) and the second clamping arm (2 c) on the first denture bracket (2) and the second denture bracket (3) are kept flush.
7. The method for manufacturing the environment-friendly and nontoxic false tooth is characterized by comprising the following steps:
s1, pre-molding: acquiring data of teeth of a patient through three-dimensional scanning, analyzing the condition of the teeth of the patient according to the scanned tooth data, and designing the shape of the false tooth through dental design software to obtain a 3D model of the teeth;
s2, manufacturing a first denture bracket (2) and a second denture bracket (3): a first denture bracket (2) and a second denture bracket (3) are coated and cast on the obtained 3D model of the patient tooth by adopting wax pattern materials;
s3, manufacturing a dental crown (1);
s4, drilling and tapping: fixing and rotating the dental crown (1), the first denture bracket (2) and the second denture bracket (3), then respectively putting the dental crown (1), the first denture bracket (2) and the second denture bracket (3) into a tapping machine for tapping to obtain a first threaded hole (1 a) which penetrates through the dental crown (1) on the dental crown (1), and a second threaded hole (2 a) and a third threaded hole (3 a) which are the same in size as the first threaded hole (1 a) and have the same straight line axis on the first denture bracket (2) and the second denture bracket (3);
s5, grinding and polishing: polishing the tapped dental crown (1), the first denture bracket (2) and the second denture bracket (3), performing porcelain applying and porcelain turning modification treatment after polishing, and cleaning after processing;
s6, assembling the dental crown (1), the first denture bracket (2) and the second denture bracket (3) to form a denture; the dental crown (1), the first denture bracket (2) and the second denture bracket (3) are sequentially and spirally arranged on the screw rod (4), and the pressing part (4 a) at the top of the screw rod (4) is hidden into the lower concave surface (1 a 1) at the top of the dental crown (1).
8. The method for manufacturing environment-friendly and nontoxic dental prosthesis according to claim 7, wherein the step S2 further comprises:
s2a, obtaining data of bad teeth on the tooth model of the patient through three-dimensional scanning, and then polishing the tops of the bad teeth in the tooth 3D model obtained through scanning at a certain scale;
s2b, wrapping the wax pattern material on the polished residual teeth and the tops and the peripheral sides of two good teeth adjacent to the residual teeth to obtain a molded mold cavity;
s2c, processing the obtained molding die cavity, reserving a joint surface (2 c 1) of the first denture bracket (2) formed at the joint part of the molding die cavity and the cheek side surface of the tooth, adding a material in the middle of the obtained die cavity to ensure that the upper side and the lower side of the middle part of the first denture bracket (2) are molded smoothly, and adding a forming material of an insert column (2 b 1) of the first denture bracket (2) at a proper position of the die cavity formed by a wax pattern material, which is jointed with the cheek side surface of the tooth model;
s2d, adding chromium alloy or nickel-chromium alloy raw materials, covering and casting two first denture brackets (2) in a wax-type material, and turning over the first denture brackets (2) to obtain second denture brackets (3).
9. The method for manufacturing environment-friendly and nontoxic dental prosthesis according to claim 7, wherein the step S3 further comprises:
s3a, selecting a nephrite raw material with a proper color and size;
s3b, designing the shape of the dental crown (1) through dental design software according to the size data of the damaged tooth obtained by three-dimensional scanning;
s3c, designing the shapes of the positioning bumps (1 b) on the two sides of the dental crown (1) through dental design software;
s3d, carrying out three-dimensional fine carving on the selected Hetian jade raw material according to data obtained by design software, and finally manufacturing the dental crown (1) which is in percent accordance with the original tooth form of the patient and has the positioning convex blocks (1 b) with two sides protruding towards the good teeth.
10. The method for manufacturing environment-friendly and nontoxic dental prosthesis according to claim 7, wherein the step S4 further comprises:
s4a, drilling a hole with a certain depth on the top of the dental crown (1) to form a lower concave surface (1 a 1) part which is matched with the size of the pressing part (4 a) of the screw (4).
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| CN101912313A (en) * | 2010-08-10 | 2010-12-15 | 上海上远义齿有限公司 | Invisible false tooth and preparation method thereof |
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| CN209645111U (en) * | 2017-12-06 | 2019-11-19 | 张藜泷 | A kind of mandibular first premolar artificial tooth of Khotan jade material |
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