CN111202602A - Personalized dental implant with alveolar bone restoration net and preparation method thereof - Google Patents
Personalized dental implant with alveolar bone restoration net and preparation method thereof Download PDFInfo
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- CN111202602A CN111202602A CN202010126776.3A CN202010126776A CN111202602A CN 111202602 A CN111202602 A CN 111202602A CN 202010126776 A CN202010126776 A CN 202010126776A CN 111202602 A CN111202602 A CN 111202602A
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- 210000000988 bone and bone Anatomy 0.000 title claims abstract description 87
- 239000004053 dental implant Substances 0.000 title claims abstract description 45
- 238000002360 preparation method Methods 0.000 title claims description 4
- 230000008439 repair process Effects 0.000 claims abstract description 12
- 230000007547 defect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 5
- 229910052719 titanium Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000877 morphologic effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005498 polishing Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 238000005488 sandblasting Methods 0.000 claims description 3
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000003814 drug Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 239000007943 implant Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000003385 bacteriostatic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008468 bone growth Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010883 osseointegration Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0037—Details of the shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
- A61C13/0019—Production methods using three dimensional printing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0093—Features of implants not otherwise provided for
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2846—Support means for bone substitute or for bone graft implants, e.g. membranes or plates for covering bone defects
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2002/2835—Bone graft implants for filling a bony defect or an endoprosthesis cavity, e.g. by synthetic material or biological material
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- Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Public Health (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Engineering & Computer Science (AREA)
- Transplantation (AREA)
- Manufacturing & Machinery (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Dental Prosthetics (AREA)
Abstract
The invention discloses an individualized dental implant with an alveolar bone restoration net, which sequentially comprises an abutment section, an individualized restoration net section and a bone grafting section, wherein the length of the bone grafting section is greater than or equal to 1.5mm, external threads are arranged on the periphery of the bone grafting section, the surface of the individualized restoration net section is an arc-shaped curved surface, the arc-shaped curved surface is gradually increased from one side close to the abutment section to the side close to the bone grafting section, holes are uniformly distributed on the arc-shaped curved surface, and the abutment section comprises a circular truncated cone, a hexagonal groove in the center of the circular truncated cone and a central screw hole in the bottom of the hexagonal groove. The arc-shaped curved surface of the personalized repair network segment is personalized by combining the finite element analysis result of the personalized model of the patient, and simultaneously, bones are induced to grow into holes of the arc-shaped curved surface, so that better biocompatibility and combination stability are achieved. Finally, the effects of obviously reducing the times of operations and the difficulty of the operations are achieved, meanwhile, the recovery time of the patient is shortened, and the success rate of the planting is improved.
Description
Technical Field
The invention relates to the technical field of dental implants, in particular to a personalized dental implant with an alveolar bone restoration net and a method for preparing the personalized dental implant.
Background
The traditional dental implantation technology aims at the problem that a patient with bone defect can not implant normally, and needs to perform bone grafting or bone powder filling operation in advance, but the two operations are complex and high in cost. Especially for a large range of alveolar bone defect cases, the alveolar bone repair needs massive autologous bone to repair, and the alveolar bone repair has large damage to other parts of the body.
Even if the bone grafting or bone powder filling operation can be performed, a patient needs a lot of time to recover after the operation to continue the dental implant operation. Meanwhile, the initial stability and the osseointegration performance of the dental implant need to be considered, so that the whole implant operation process of a patient with bone defect is complicated and needs multiple operations, which has great difficulty, and the whole success rate of the dental implant of the patient with bone defect is not high.
Disclosure of Invention
The technical scheme aims to provide a personalized dental implant with an alveolar bone restoration net, so as to solve one or more technical problems in the prior art and provide at least one beneficial choice or creation condition.
The utility model provides an integrally prepared by SLM technique forms, has individualized dental implant of alveolar bone restoration net, and it comprises base station section, individualized restoration network section and bone grafting section in proper order, bone grafting section length more than or equal to 1.5mm and periphery are equipped with the external screw thread, the surface of individualized restoration network section is the arc curved surface, the arc curved surface is by being close to base station section one side to being close to bone grafting section one and then crescent, the arc curved surface equipartition has the hole, the base station section includes the hexagonal groove at round platform and round platform center to and the central screw hole of hexagonal tank bottom portion.
Further, the diameter of the bone grafting section is 3mm, and the diameter of the base platform section is 5 mm.
Furthermore, the periphery of the bone grafting section is provided with at least 4 grooves with trapezoidal sections at equal included angles. The groove can achieve the self-tapping and locking effects when the bone grafting section is screwed into the alveolar bone.
Further, the personalized repair network segment may have a variety of design approaches. For example, the whole body is a porous component, and the sufficient strength is ensured by adjusting the reasonable porosity, so that the autogenous bone of the patient can grow into the personalized repair network segment more easily, and the whole personalized dental implant is more stable. For another example, the personalized repair network segment comprises a connecting rod and a shell, the arc-shaped curved surface is the shell, a cavity is arranged in the shell, the connecting rod is positioned in the cavity, and two ends of the connecting rod are respectively connected with the base platform segment and the bone grafting segment. The base platform section and the bone grafting section are connected by the connecting rod without considering the strength of the porous part; the cavity in the shell can be filled with anti-inflammatory and bacteriostatic medicines or medicines which are helpful for bone growth in advance, and can also be filled with autologous bone powder in advance. The holes are uniformly distributed on the shell, so that the medicine in the cavity can be released, and the autogenous bones of the patient can grow into the shell. Preferably, the thickness of the shell is 0.2-0.3 mm.
Furthermore, a horn-shaped transition structure is arranged at the position where the hexagonal groove is connected with the circular truncated cone, and the diameter of the horn-shaped transition structure is gradually reduced from the end face of the circular truncated cone to the direction of the hexagonal groove. The trumpet-shaped transition structure avoids stress concentration.
Further, the personalized dental implant is a pure titanium component or a titanium alloy component.
Meanwhile, a method for preparing the personalized dental implant with the alveolar bone restoration net is also provided, and the method specifically comprises the following steps:
1) scanning the defect position of the alveolar bone to obtain morphological data, importing the data into imaging software to generate a three-dimensional image in an STL format, and repairing to obtain an alveolar bone model;
2) importing the alveolar bone model into processing software, and constructing a defect area through a stretching function;
3) obtaining a prosthesis model from the alveolar bone model containing the defect area through a Boolean operation function;
4) measuring the height and width of the repairing body model in processing software, and designing a dental implant and an individualized repairing network segment model according to data;
5) combining the dental implant model and the personalized restoration network segment model into a whole through a Boolean operation function in the processing software, and obtaining the personalized dental implant model with the alveolar bone restoration network after restoration;
6) and (3) introducing the personalized dental implant model with the alveolar bone restoration net into an SLM printer for printing and manufacturing to obtain the prosthesis, and removing unfused pure titanium particles of the prosthesis through sand blasting and polishing treatment.
The dental implant and the repairing net are combined together, so that the bone grafting section is screwed into the alveolar bone, the initial stability of the dental implant is ensured, and meanwhile, the bone grafting material required for fixing and repairing the bone defect in a personalized repairing net section is provided. The arc-shaped curved surface of the personalized repair network segment is personalized by combining the finite element analysis result of the personalized model of the patient, and simultaneously, bones are induced to grow into holes of the arc-shaped curved surface, so that better biocompatibility and combination stability are achieved. Finally, the effects of obviously reducing the times of operations and the difficulty of the operations are achieved, meanwhile, the recovery time of the patient is shortened, and the success rate of the planting is improved.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a front view of a personalized dental implant with an alveolar bone restoration mesh according to example 1;
fig. 2 is a top view of the personalized dental implant with alveolar bone restoration mesh described in example 1.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Example 1, a personalized dental implant with an alveolar bone restoration mesh was prepared according to the following steps:
1. the method comprises the steps of scanning the defect position of the alveolar bone of a patient through CT to obtain required morphological data, importing the data into MIMICS software to generate a three-dimensional image in an STL format, and repairing to obtain an alveolar bone model.
2. And (3) importing the alveolar bone model into Magics software, and constructing a defect area through a stretching function.
3. And obtaining a prosthesis model from the alveolar bone model containing the defect region through a Boolean operation function.
4. And measuring the height and width of the prosthesis model in Magics software, and designing a dental implant and an individualized repair network segment model according to data.
5. And combining the dental implant model and the personalized restoration network segment model into a whole through a Boolean operation function in Magics software, and restoring to obtain the personalized dental implant model with the alveolar bone restoration network.
6. And (3) introducing the personalized dental implant model with the alveolar bone restoration net into an SLM printer for printing and manufacturing to obtain the prosthesis, and removing unfused pure titanium particles of the prosthesis through sand blasting and polishing treatment.
The prepared personalized dental implant with the alveolar bone restoration net is shown in figures 1 and 2 and sequentially comprises an abutment section 005, a personalized restoration net section 002 and a bone grafting section 004, wherein the diameter of the bone grafting section 004 is 3mm, the length of the bone grafting section is more than or equal to 1.5mm, external threads are arranged on the periphery of the bone grafting section 004, 4 grooves 003 with trapezoidal sections are arranged at equal included angles on the periphery of the bone grafting section 004, and the depth of each groove 003 is 0.3 mm; the personalized repair network segment 002 comprises a connecting rod and a shell, wherein the shell gradually increases from one side close to the base platform segment 005 to the bone grafting segment 004 and is uniformly provided with holes with the diameter of 0.3mm, the thickness of the shell is 0.2-0.3 mm, a cavity is formed inside the shell, the connecting rod is positioned in the cavity, and two ends of the connecting rod are respectively connected with the base platform segment 005 and the bone grafting segment 004; the diameter of base station section 005 is 5mm, including hexagonal groove 007 at round platform and round platform center to and the central screw hole 008 of hexagonal groove 007 bottom, hexagonal groove 007 is connected round platform department is equipped with tubaeform transition structure 006, tubaeform transition structure 006's diameter is dwindled by the direction of round platform terminal surface to hexagonal groove 007 gradually.
Example 2, a personalized dental implant with an alveolar bone restoration mesh was prepared by the same preparation method, which is different from example 1 in that the whole personalized restoration mesh segment is a porous member, and sufficient strength is ensured by adjusting a reasonable porosity, so that autologous bones of a patient can grow into the personalized restoration mesh segment more easily, and the whole personalized dental implant is more stable.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a personalized dental implant with alveolar bone restoration net which characterized in that: form by the integrative preparation of SLM technique, constitute by base station section, individualized restoration network segment and bone grafting section in proper order, bone grafting section length more than or equal to 1.5mm and periphery are equipped with the external screw thread, the surface of individualized restoration network segment is the arc curved surface, the arc curved surface is by being close to base station section one side to being close to bone grafting section one and then crescent, the arc curved surface equipartition has the hole, the base station section includes the hexagonal groove at round platform and round platform center to and the central screw hole of hexagonal tank bottom.
2. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the diameter of the bone grafting section is 3 mm.
3. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the diameter of the base platform section is 5 mm.
4. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the periphery of the bone grafting section is provided with at least 4 grooves with trapezoidal sections at equal included angles.
5. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the whole personalized repair network segment is a porous member.
6. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the personalized repair network segment comprises a connecting rod and a shell, the arc-shaped curved surface is the shell, a cavity is formed in the shell, the connecting rod is located in the cavity, and two ends of the connecting rod are respectively connected with the base platform segment and the bone grafting segment.
7. The personalized dental implant with an alveolar bone restoration mesh according to claim 6, wherein: the thickness of the shell is 0.2-0.3 mm.
8. The personalized dental implant with an alveolar bone restoration mesh according to claim 1, wherein: the hexagonal groove is connected with the round table, a horn-shaped transition structure is arranged at the position of the round table, and the diameter of the horn-shaped transition structure is gradually reduced from the end face of the round table to the direction of the hexagonal groove.
9. The personalized dental implant with an alveolar bone restoration mesh according to any one of claims 1 to 8, wherein: the personalized dental implant is a pure titanium component or a titanium alloy component.
10. A method for preparing the personalized dental implant with the alveolar bone restoration mesh according to any one of claims 1 to 9, comprising the steps of:
1) scanning the defect position of the alveolar bone to obtain morphological data, importing the data into imaging software to generate a three-dimensional image in an STL format, and repairing to obtain an alveolar bone model;
2) importing the alveolar bone model into processing software, and constructing a defect area through a stretching function;
3) obtaining a prosthesis model from the alveolar bone model containing the defect area through a Boolean operation function;
4) measuring the height and width of the repairing body model in processing software, and designing a dental implant and an individualized repairing network segment model according to data;
5) combining the dental implant model and the personalized restoration network segment model into a whole through a Boolean operation function in the processing software, and obtaining the personalized dental implant model with the alveolar bone restoration network after restoration;
6) and (3) introducing the personalized dental implant model with the alveolar bone restoration net into an SLM printer for printing and manufacturing to obtain the prosthesis, and removing unfused pure titanium particles of the prosthesis through sand blasting and polishing treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010126776.3A CN111202602A (en) | 2020-02-28 | 2020-02-28 | Personalized dental implant with alveolar bone restoration net and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010126776.3A CN111202602A (en) | 2020-02-28 | 2020-02-28 | Personalized dental implant with alveolar bone restoration net and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113876452A (en) * | 2020-11-25 | 2022-01-04 | 广州市弘健生物医用制品科技有限公司 | Ultrasonic system for alveolar bone reconstruction |
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