CN215192453U - Temporary tooth for mouth rehabilitation - Google Patents
Temporary tooth for mouth rehabilitation Download PDFInfo
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- CN215192453U CN215192453U CN202022204137.2U CN202022204137U CN215192453U CN 215192453 U CN215192453 U CN 215192453U CN 202022204137 U CN202022204137 U CN 202022204137U CN 215192453 U CN215192453 U CN 215192453U
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Abstract
The utility model discloses a be used for prosthetic interim tooth of oral cavity, include: a temporary denture attached to the top end of the base, and a base. The temporary denture includes: the lower end of the artificial tooth crown and the artificial abutment are connected with the base; the prosthetic appliance abutment includes: cylinder, first helicla flute and second helicla flute encircle the cylinder sets up, and first helicla flute and second helicla flute interval are seted up in the cylinder outside, the cylinder with the foundation is connected the utility model discloses a take the interim artificial tooth of elasticity foundation, unite two into one traditional interim artificial tooth and base station locator, effectively realize the artificial tooth location, save the preparation time, reduce patient's repair cost, remedied traditional even artificial tooth and exposed the drawback of snap ring, unattractive, communicate the form of interim artificial tooth before the art and in the repair process simultaneously and recycle, provide sufficient reference foundation for final prosthesis effect, effectively improve the repair effect.
Description
Technical Field
The utility model relates to a preparation and the processing technology field of dental implant artificial tooth, specifically speaking relates to an interim tooth for mouth rehabilitation.
Background
The artificial tooth is implanted by implanting a metallic titanium implant into an alveolar bone in an oral edentulous area, wherein the metallic titanium and a surface microstructure of a bone tissue can be tightly combined to form osseointegration, and then a prosthesis is manufactured at the upper end of the implant artificial tooth to complete the repair of the implant artificial tooth. The implanted false tooth can remarkably improve the chewing function of a patient, feels comfortable like a real tooth, and can obtain satisfactory curative effect by implanting the false tooth in many difficult and difficult clinical repair cases which are difficult to solve by the conventional false tooth. The healing period is 3-6 months or even longer from the time when the implant is implanted into the mouth of a patient to the time when the implant denture repair is finally completed. In addition to providing the patient with functional and aesthetic needs during the healing period, the subjective feeling of the patient on the temporary denture can provide functional and aesthetic references for the superstructure repair of the permanently implanted denture, making the final repair more perfect.
As shown in fig. 1, when implanting a denture, a temporary denture is generally required to be used in combination with an abutment locator, and first, before an implant is implanted into an oral cavity, a cemented denture is made as a temporary denture; after the implant is implanted into the oral cavity, the temporary false tooth is worn in the oral cavity; after the healing period, entering the upper part repairing stage of the implanted false tooth; after the base station is manufactured, a base station positioner is manufactured on the base station; the abutment locator is used to accurately locate the abutment on the implant.
This method has certain problems in use: firstly, the temporary false tooth and the abutment locator are manufactured at different stages of repair, and the time span is longer; in the later stage of upper part repair, it is difficult to provide sufficient reference for the effect of the final repair; secondly, the abutment locator is made by a technician, which is cumbersome to manufacture, and the technician time and cost are high, and the patient repair cost is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a temporary tooth for oral restoration, adopt the temporary denture of taking the elastic base, unite two into one traditional temporary denture and abutment locator, effectively realize the denture location, save the preparation time, reduce patient's repair cost, compensate traditional glue and glue the denture and expose the snap ring, the drawback of unaesthetic, through the form of temporary denture recycle before the operation of communication and in the repair process, provide sufficient reference for final prosthesis effect, effectively improve the repair effect; it includes:
a temporary denture attached to the top end of the base;
the temporary denture includes: the lower end of the artificial tooth crown and the artificial abutment are connected with the base;
the prosthetic appliance abutment comprises: the cylinder, first helicla flute and second helicla flute encircle the cylinder sets up, and first helicla flute and second helicla flute interval are seted up in the cylinder outside, the cylinder with the base is connected.
Preferably, the denture crown and the denture abutment are integrally formed.
Preferably, the base comprises:
the cover ridge part is positioned at the middle protruding position of the base and is connected with the temporary false tooth; the supporting parts are positioned on two sides of the cristae teglosa part and connected with teeth; the fit part is arranged around the ridge covering part and the supporting part and is tightly fit with the oral cavity.
Preferably, the base is made of an elastic resin material.
Preferably, the ridge part is provided with a plurality of fixing holes, the fixing holes correspond to the positions of the temporary false teeth one by one, and the diameter of each fixing hole is 1mm larger than that of the false tooth abutment.
Preferably, the temporary denture 1 and the base 2 are bonded by cement.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a conventional temporary denture and abutment positioner;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is a schematic view of the present invention installed in the oral cavity;
fig. 4 is a schematic structural view of the temporary denture of the present invention;
FIG. 5 is a schematic view of the base of the present invention;
FIG. 6 is a schematic view of the structure of the denture base of the present invention;
fig. 7 is a flow chart of the temporary tooth preparation method of the present invention.
In the figure: 1. a temporary denture; 2. a base support; 3. a tooth; 4. a base station positioner; 11. a dental crown; 12. a denture base; 21. a cap ridge portion; 22. a bearing part; 23. a bonding section; 24. a fixing hole; a 121 cylinder; 122. a first helical groove; 123. a second helical groove.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Examples
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 2 to 7, the present embodiment provides a temporary tooth for dental restoration, including:
a temporary denture 1 and a base 2, wherein the temporary denture 1 is connected to the top end of the base 2;
the temporary denture 1 includes: a dental prosthesis crown 11 and a dental prosthesis abutment 12, the lower end of the dental prosthesis crown 11 and the dental prosthesis abutment 12 being connected to the base 2; the denture crowns 11 are morphologically designed and arranged by a digital denture manufacturing method and are used for temporary use before replacement of a permanent denture, the base 2 is connected to the lower end of the denture crowns 11 and is used for being connected with the base 2, so that the denture crowns 11 are positioned and bonded, the mounting positions of the temporary dentures 11 are accurate, the bonding area is increased, the connection strength of the temporary denture 11 is improved, the temporary denture 11 is effectively prevented from falling off, and the service life is prolonged;
the prosthetic abutment 12 includes: the device comprises a cylinder 121, a first spiral groove 122 and a second spiral groove 123, wherein the first spiral groove 122 and the second spiral groove 123 are arranged around the cylinder 121, the first spiral groove 122 and the second spiral groove 123 are arranged outside the cylinder 121 at intervals, and the cylinder 121 is connected with the base 2; when the denture abutment 12 is bonded with the base 2, cement uniformly enters the first spiral groove 122 and the second spiral groove 123, the first spiral groove 122 and the second spiral groove 123 are spirally arranged, the temporary denture 1 is prevented from moving when being stressed in the vertical direction in the using process, more reliable locking is provided for the temporary denture 1, meanwhile, the contact area between the first spiral groove 122 and the second spiral groove 123 and the cement is increased, the connection strength is improved, the cement in one spiral groove is prevented from losing efficacy to cause loose connection, the cement is prevented from flowing out, the force transmission is more balanced when the temporary denture 1 is stressed, and the stress concentration is reduced.
The utility model discloses a theory of operation and beneficial effect do:
the utility model provides a temporary tooth for mouth rehabilitation, when in preparation, firstly, a model is poured through a silicon rubber impression taking die, the poured model is sent to a technician, and an agar impression material is utilized to copy a working model; secondly, tooth arrangement is carried out, and the manufactured temporary false teeth 1 are arranged on the copy model; molding the base 2 again, boxing the lined temporary denture 1 and the base 2, and polishing and grinding the molded base 2; then separating the base 2 and the temporary denture 1, forming a fixing hole 24 in a ridge part 21 of the base 2, finally resetting the temporary denture 1 onto the base 2 according to the original position, fixedly connecting the temporary denture 1 with the base 2 through a cement, finishing the manufacturing of the temporary tooth, and putting the manufactured temporary tooth into the oral cavity of a patient after the preparation of the temporary tooth is finished; after 3-6 months of the healing period of the implant, the upper part of the implant is repaired, and a technician reapplies the form of the temporary denture 1 manufactured before the implant operation in the repair design manufacturing according to the conventional digital denture manufacturing method, so as to ensure the consistency of the communication between the finished temporary denture 1 and the operation.
The utility model discloses a take the interim artificial tooth of elastic base support, unite two into one traditional interim artificial tooth and base station locator, effectively realize the artificial tooth location, save the preparation time, reduce patient's restoration cost, compensatied that traditional even artificial tooth exposes snap ring, unattractive drawback, the form through linking up before the art and interim artificial tooth in the repair process is recycled simultaneously, provides sufficient reference foundation for final restoration effect, effectively improves the repair effect.
As shown in fig. 5, in one embodiment, the base 2 includes:
the temporary denture comprises a cap ridge part 21, a supporting part 22 and a fitting part 23, wherein the cap ridge part 21 is positioned in the middle protruding position of the base 2 and is connected with the temporary denture 1; the supporting parts 22 are positioned at two sides of the cristae cutis 21 and connected with the teeth 3; the fitting part 23 is arranged around the ridge part 21 and the supporting part 22 and is tightly fitted with the oral cavity.
The working principle and the beneficial effects of the technical scheme are as follows:
after one or more temporary false teeth 1 are arranged, the temporary false teeth are connected to the cap ridge part 21, one side of the supporting part 22 far away from the cap ridge part 21 is provided with an opening, so that the base 2 can be sleeved on the peripheral healthy teeth 3, the attaching part 23 extends along the direction that the cap ridge part 21 and the supporting part 22 are far away from the temporary false teeth 1 and is closely attached to the internal gum of the oral cavity, and the base 2 realizes the fixation of the temporary false teeth 1, improves the installation stability of the base 2 and reduces the discomfort of a patient.
In one embodiment, the dental crown 11 is integrally formed with the abutment 12.
The working principle and the beneficial effects of the technical scheme are as follows:
the artificial tooth crown 11 and the artificial tooth abutment 12 are integrally formed, so that the temporary artificial tooth 1 is prevented from being broken by stress in the use process of the temporary tooth, the connection strength of the artificial tooth crown 11 and the artificial tooth abutment 12 is improved, the reliability of the temporary artificial tooth 1 is improved, and the service life is effectively prolonged.
In one embodiment, the base 2 is made of an elastic resin material.
The working principle and the beneficial effects of the technical scheme are as follows:
In one embodiment, the ridge part 21 is provided with a plurality of fixing holes 24, the fixing holes 24 correspond to the positions of the temporary denture 1 one by one, and the diameter of each fixing hole 24 is 1mm larger than that of the denture abutment 12.
The working principle and the beneficial effects of the technical scheme are as follows:
the diameter of the fixing hole 24 is 1mm larger than that of the denture abutment 12, when the temporary denture 1 is bonded, cement can enter along the gap between the fixing hole 24 and the denture abutment 12, the adaptive bonding thickness is kept, the bonding strength between the side surface of the denture abutment 12 and the base 2 is increased, the temporary denture 1 is limited in the horizontal direction, meanwhile, a flow channel is provided for the cement, and the cement overflow is reduced when the denture crown 11 is bonded with the base 2.
In one embodiment, the temporary denture 1 is bonded to the base 2 by cement.
The cement is a composite resin cement, has good bonding performance and high safety, ensures the relative positions of the temporary denture 1 and the base 2, effectively prevents the temporary denture 1 from moving, protects the base 2 at the bonding position, and prevents the base 2 from being damaged when the temporary denture 1 is removed.
It is noted that a method for preparing a temporary tooth for dental restoration, comprising:
the method comprises the following steps: taking an impression from silicon rubber to cast a model, and conveying the cast model to a technician;
step two: copying the working model by using the agar impression material;
step three: tooth arrangement, namely arranging the manufactured temporary denture 1 on the copy model;
step four: forming the base 2, and boxing the arranged temporary denture 1 and the base 2;
step five: polishing and grinding the molded base 2;
step six: separating the base 2 and the temporary denture 1, and arranging a fixing hole 24 on the ridge part 21 of the base 2;
step seven: the temporary denture 1 is restored to the base 2 in situ, and the temporary denture 1 and the base 2 are fixedly connected by cement, thereby completing the production of the temporary teeth.
Before the preparation of the temporary tooth, three parties including a doctor, a technician and a patient need to communicate, a treatment scheme is discussed according to the self condition of the patient, and then a repair scheme is formulated according to the discussion result; and the aesthetic design software of the oral cavity specialty is used for designing the personalized tooth form and arrangement which accord with the patient for the patient according to the facial information of the patient, the temporary denture 1 form which accords with the expected repair effect of the patient is manufactured by using the CAD/CAM cutting or 3D printing process, and the 3D data of the designed temporary denture 1 is stored for preparing for the subsequent manufacture.
After the preparation of the temporary tooth is finished, the prepared temporary tooth is worn in the oral cavity of a patient, the upper part of the implant is repaired after 3-6 months of the healing period of the implant, a doctor takes an impression of the patient, a model containing the position of the implant is prepared, and the model is sent to a technician; the technician conventionally reapplies the form of the temporary denture 1 manufactured before the implant operation in the repair design manufacturing according to the digital denture manufacturing method, and the communication between the temporary denture 1 and the operation after the completion is ensured to be consistent.
After the repair period is finished, the temporary denture 1 needs to be taken out through a crown extractor and replaced by a permanent denture, and the fracture and damage of the bonding part in the tooth taking process of the crown extractor are calculated as follows:
the method comprises the following steps: when the temporary denture 1 is pulled out vertically upwards by the crown extractor, the bonding layer is only under the action of tension to generate open fracture, and in the process of generating new cracks, the energy consumed by the unit area for crack propagation is fracture energy, and the energy is calculated as follows:
wherein the content of the first and second substances,
the breaking strength of the material in an open fracture,
is the fracture energy of the material in an open fracture,
is the maximum opening displacement of the crack tip,
thus:
step two: calculating the fracture force at the crack tip corresponding to the fracture strength
;
Wherein the content of the first and second substances,
in order to be the thickness of the adhesive layer,
in order to break the length of the unit,
wherein the content of the first and second substances,
and
respectively corresponding joint coordinates of crack sharp point positions;
step three: when the stress reaches the breaking strength, the opening displacement is calculated
Comprises the following steps:
wherein the content of the first and second substances,
structural stiffness at the tip of the crack;
step four: determination of fracture crack formation:
A1. when the crack tip opens
At this time, the deformation of the crack tip is elastic deformation with a large cohesive energy, and at this time, the fracture energy release rate
；
A2. When the crack tip opens
When the crack tip enters the stress drop zone, the structural rigidity is improved
And breaking energy release rate
Comprises the following steps:
A3. when the crack tip opens
Stiffness at the tip of the crack
Rate of energy release at break
I.e. indicating material failure, crack formation and failure of the cross-sectional element at the bonding site.
Step five: establishing a temporary tooth finite element simulation model, analyzing the stress-strain distribution conditions of the bonding layer, the temporary denture 1 and the base 2 in the bonding material fracture process based on the fracture crack formation judgment method, determining the failure modes of all parts, and optimizing to obtain the optimal force application direction and force application value.
When the force is too small, the temporary denture 1 cannot be taken out, and when the force is too large, the base 2 is damaged to different degrees, and the fracture energy is reduced
Crack tip breaking force
Opening displacement
And maximum opening displacement
Calculating, judging the fracture crack of the bonding surface, and when the crack tip opens and moves
When the material fails, cracks are formed, the bonding position section unit is damaged, the temporary false tooth 1 can be taken out only when the bonding layer fails, and when the material fails at the local position of the base 2, the cracks are formed on the base 2. The fracture damage calculation method provides evaluation basis for force application finite element simulation analysis in the taking-out process of the temporary denture 1, and the evaluation basis is used as an optimization index to obtain a proper force application direction and a proper force application value, so that the taking-out reliability of the temporary denture 1 is improved, the damage to the base 2 when the temporary denture 1 is taken out is prevented, the later repair of the base 2 is reduced, and the service life of the base 2 is prolonged.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (6)
1. A temporary tooth for use in oral restoration, comprising:
a temporary denture (1) and a base (2), wherein the temporary denture (1) is connected to the top end of the base (2);
the temporary denture (1) comprises: a denture crown (11) and a denture abutment (12), wherein the lower end of the denture crown (11) and the denture abutment (12) are connected with the base (2);
the prosthetic abutment (12) comprises: the cylinder (121), the first spiral groove (122) and the second spiral groove (123) are arranged around the cylinder (121), the first spiral groove (122) and the second spiral groove (123) are arranged on the outer side of the cylinder (121) at intervals, and the cylinder (121) is connected with the base (2).
2. A temporary tooth for oral cavity restoration according to claim 1, wherein the dental crown (11) is integrally formed with the abutment (12).
3. A temporary tooth for oral restoration according to claim 1, wherein the base (2) comprises: the temporary denture comprises a cap ridge part (21), a supporting part (22) and a fitting part (23), wherein the cap ridge part (21) is positioned at the middle protruding position of the base (2) and is connected with the temporary denture (1); the supporting parts (22) are positioned at two sides of the cristae tegument part (21) and connected with the teeth (3); the attaching part (23) is arranged around the ridge covering part (21) and the supporting part (22) and is closely attached to the oral cavity.
4. A temporary tooth for oral restoration according to claim 1, wherein said base (2) is made of an elastic resin material.
5. A temporary tooth for oral cavity restoration according to claim 3, wherein the cap ridge portion (21) is provided with a plurality of fixing holes (24), the fixing holes (24) correspond to the positions of the temporary denture (1) one by one, and the diameter of the fixing holes (24) is 1mm larger than that of the denture abutment (12).
6. A temporary tooth for oral cavity restoration according to claim 1, wherein the temporary prosthetic tooth (1) and the base (2) are bonded by cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022204137.2U CN215192453U (en) | 2020-09-30 | 2020-09-30 | Temporary tooth for mouth rehabilitation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022204137.2U CN215192453U (en) | 2020-09-30 | 2020-09-30 | Temporary tooth for mouth rehabilitation |
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| CN215192453U true CN215192453U (en) | 2021-12-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112274284A (en) * | 2020-09-30 | 2021-01-29 | 北京联袂义齿技术有限公司 | Temporary tooth for oral restoration and preparation method thereof |
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2020
- 2020-09-30 CN CN202022204137.2U patent/CN215192453U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112274284A (en) * | 2020-09-30 | 2021-01-29 | 北京联袂义齿技术有限公司 | Temporary tooth for oral restoration and preparation method thereof |
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