CN113069232A - Guide plate for digitally and accurately guiding support recess preparation process and manufacturing method thereof - Google Patents
Guide plate for digitally and accurately guiding support recess preparation process and manufacturing method thereof Download PDFInfo
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- CN113069232A CN113069232A CN202110314823.1A CN202110314823A CN113069232A CN 113069232 A CN113069232 A CN 113069232A CN 202110314823 A CN202110314823 A CN 202110314823A CN 113069232 A CN113069232 A CN 113069232A
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- 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
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- 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
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Abstract
The invention discloses a guide plate for digitally and accurately guiding a support recess preparation process and a manufacturing method thereof. The guide plate consists of a support concave preparation positioning guide plate and a preparation plug-in unit entity. The preparation of the support concave is carried out in the digital oral cavity model before operation, guide ring data is obtained according to a user-defined machine needle, then a preparation plug-in is designed, and the preparation plug-in and a positioning guide plate are combined and printed to obtain a guide plate. The guide plate can accurately guide the clinical preparation supporting concave operation, so that doctors can obtain a predictable three-dimensional supporting concave form. The accurate, fast and convenient support concave preparation can be completed by clinically operating the guide plate, and the number of times of patients' treatment is reduced.
Description
Technical Field
The invention relates to the technical field of auxiliary tools for oral surgery, in particular to a guide plate for digitally and accurately guiding a support recess preparation process and a manufacturing method thereof.
Background
Removable Partial Dentures (RPD) have been one of the indispensable repair means in the field of dental repair, which provides an economical and convenient treatment scheme for patients with dentition defects, and has a wide range of indications. And a reasonable RPD design can meet the coordination of soft and hard tissues, tooth positions and occlusion relation to the maximum extent, and the requirement of a patient on the desire of the aesthetics and the comfort of the prosthesis is met. The steps that may lead to failure or complications due to carelessness or lack of expertise of clinicians include: lack of pre-diagnosis planning, no preparation of the abutment; the structure of the RPD scaffold cannot be adapted; lack of follow-up after treatment, etc. Many times, problems arise at the beginning of active repair therapy. Many physicians perform some inaccurate treatment without experience or communication with the technician, eventually creating problems in the form of chain reactions, with the result that the patient is not satisfied with the RPD effect and even the prosthesis has long-term deleterious effects on the soft and hard tissues in the mouth. Even though the precision of the stent fabrication is improved with the help of the computer aided design and manufacturing technology, the problem of abutment preparation, including the preparation of the bracket recess, still exists due to the lack of pre-diagnosis treatment plan at the clinical end. On the premise of lacking analysis design and clinical guidance before preparation, the principle of retaining tooth tissues as far as possible is violated if the support concave preparation is too deep, and the risk of caries is increased; too shallow a preparation of the supporting concave makes the space of the position of the supporting concave insufficient, which causes the placing position to become a weak point for stress and even interferes the occlusion movement of the patient. Therefore, in the field of oral cavity restoration, there is a need for a guide plate and a manufacturing method thereof, which can precisely control the depth and shape of the supporting recess.
Disclosure of Invention
The invention aims to: in view of the above problems, a method for manufacturing a guide plate for digitally and accurately guiding a preliminary process of a support recess is provided to provide a guide plate capable of guiding a machine needle to accurately prepare a support recess.
The technical scheme adopted by the invention is as follows:
a manufacturing method of a guide plate for digitally and accurately guiding a support concave preparation process comprises the following steps:
constructing a digital oral cavity model according to the oral cavity data of the patient;
performing a foveal preparation on the digital oral model;
constructing a supporting concave preparation positioning guide plate model according to a digital oral cavity model prepared with supporting concave, wherein at least a supporting concave preparation shape is reserved on the supporting concave preparation positioning guide plate model;
designing and placing corresponding prepared machine needles in the supporting concave parts respectively according to the digital oral cavity model prepared with the supporting concave parts;
generating corresponding prepared needle guide ring data according to each set of prepared needles;
generating corresponding prepared needle guide rings according to the prepared needle guide ring data of each group, and connecting the prepared needle guide rings of each group into a whole to form a prepared plug-in model;
respectively removing the overlapped parts of the preparation plug-in model and the support concave preparation positioning guide plate model of each group to respectively obtain corresponding preparation plug-ins;
and preparing a corresponding support concave preparation positioning guide plate and preparation plug-in entity according to the support concave preparation positioning guide plate model and each group of preparation plug-ins respectively to form a guide plate.
At least one supporting concave is prepared for the teeth of a patient, correspondingly, at least one supporting concave preparation shape (corresponding to the supporting concave shape) is reserved on the supporting concave preparation positioning guide plate model, a group of preparation car needles are designed corresponding to each supporting concave, and the preparation car needles are selected and placed according to the supporting concave shape required to be prepared. In the placing state, each set of prepared needles forms a set of corresponding prepared needle guide ring data, the prepared needle guide ring data are guide rings for guiding the corresponding prepared needles to prepare, the prepared positions, angles and depths of the guide needles are guided, and the set of prepared needle guide ring data can generate a set of prepared needle guide rings (models) which are connected into a whole corresponding to one prepared needle guide ring of the support concave to form a prepared plug-in model corresponding to the support concave so as to guide all needles used by the support concave. And then eliminating the overlapped, blocked and in-place parts of the model to obtain a final model, and manufacturing according to the model to prepare the solid guide plate.
Furthermore, the support concave preparation positioning guide plate model is further provided with retention columns for connecting the preparation insert models respectively, and the retention columns surround the corresponding support concave. The retention posts are designed to facilitate the secure attachment of the preliminary insert to the guide, although the preliminary insert may be removable from the guide.
Further, the diameter of each retaining column is not less than 2 mm.
Furthermore, the number of the retaining columns in each group is 6-10.
Further, the connecting each set of the preparatory needle guide rings into a whole respectively includes:
for each group of prepared needle guide rings, the prepared needle guide rings are connected into a whole through connecting accessories, and supporting rods are added on the guide ring walls of part or all of the prepared needle guide rings and matched with the corresponding retention columns.
Further, the prepared needle is designed to be a prepared needle with scales.
Further, the removing the overlapping portions of the prepared insert model and the support concave prepared positioning guide model respectively comprises: and subtracting the prepared plug-in model and the prepared positioning guide plate model of the support concave by using Boolean operation to remove overlapped and blocked parts.
Further, the preparing a corresponding support indentation preparation positioning guide plate and preparation insert entity according to the support indentation preparation positioning guide plate model and each set of preparation inserts respectively includes:
and respectively guiding the support concave preparation positioning guide plate model and each group of preparation plug-in units into a dental printer system, and respectively printing the support concave preparation positioning guide plate and each group of preparation plug-in unit entity by using the dental printer system.
In order to solve all or part of the problems, the invention also provides a guide plate which is manufactured by adopting the manufacturing method of the guide plate for the digitalized accurate guide support concave preparation process.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. the invention gives full play to the high-precision advantage of digital design, analyzes the depth, angle and preparation position of the preparation needle in advance for the designed support concave standard, and then designs the corresponding preparation plug-in unit to guide and limit the preparation needle, and has precision and predictability.
2. The invention does not need to prepare a solid plaster model of the oral cavity of the patient and manually fill the undercut, thereby simplifying the repair process.
3. The invention fully predicts and calculates before the operation, and doctors do not need to use subjective experience to operate in clinical preparation, thereby shortening the clinical operation time.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of a digitized oral model.
Fig. 2 is a schematic diagram of a design resting concave preliminary positioning guide model on a digital oral cavity model.
Fig. 3 is a schematic diagram of a preparatory sewing needle.
Fig. 4 is a schematic view of a preliminary needle preliminary rest.
Fig. 5 is a single set of preparation inserts.
Fig. 6 is a schematic view of a guide plate.
Fig. 7 is a schematic view of a preliminary rest recess according to a guide plate.
Detailed Description
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
Example one
The embodiment discloses a manufacturing method of a guide plate for digitally and accurately guiding a support concave preparation process, which comprises the following steps of:
A. and constructing a digital oral cavity model according to the oral cavity data of the patient.
The oral cavity data of the patient can be obtained by an intraoral scanner or a scanning mode of a table scanner after traditional model taking, and a corresponding digital oral cavity model can be constructed by utilizing three-dimensional modeling software according to the obtained oral cavity data, wherein the digital oral cavity model is constructed as shown in figure 1.
B. The preparation of the resting indentation 2 is performed on a digital oral model.
The digital oral cavity model of the patient is led into professional oral cavity restoration design software, and virtual preparation of the supporting concave 2 at the corresponding position is completed in the software according to the minimum depth and the standard range (corresponding specifications in the field of oral cavity restoration) required by the cobalt-chromium alloy supporting concave. Different connector designs can design different numbers and shapes of supports, correspondingly, different numbers and shapes of support concave parts 2 can be prepared on the abutment of the digital oral cavity model, and the number of the support concave parts 2 is at least one. And exporting the prepared digital oral cavity model.
C. According to the digital oral cavity model prepared with the supporting dents 2, a supporting dent preparation positioning guide plate model 1 is designed, and at least a prepared form of each supporting dent 2 is reserved on the supporting dent preparation positioning guide plate model 1.
And (3) importing the prepared digital oral cavity model into dental design software, and designing a supporting concave preparation positioning guide plate model 1 for guiding the preparation of the supporting concave 2 by using a functional module designed by the occlusal splint. The prepared support recess 2 is prepared on the support recess preparation positioning guide plate model 1. Furthermore, the supporting concave preliminary positioning guide plate model 1 is reserved with retention columns 3 for connecting each set of preliminary plug-in units, one set of retention columns 3 is designed for one preliminary plug-in unit, one set of retention columns 3 corresponding to one supporting concave 2 surrounds the supporting concave 2, and the boundaries of the reserved area of the supporting concave preliminary positioning guide plate model 1 are reserved. Each set of the retention columns 3 is provided with 6-10 retention columns according to the size of the support concave shape, and the diameter is not less than 2mm according to the characteristics of the printing resin material, so that the strength after printing is ensured, and the effect of the design of the support concave preliminary positioning guide plate model 1 is shown in figure 2.
D. According to the digital oral cavity model prepared with the supporting concave 2, a corresponding prepared machine needle 4 is designed and placed at each supporting concave 2.
And (3) importing the prepared digital oral cavity model into three-dimensional modeling software, and customizing the fixed depth of a needle according to the clinically existing needle with scales by using a user-defined needle-turning function in software design. As shown in fig. 3, in this embodiment, the fixed depth corresponding to the needle to be calibrated is 4 mm.
According to the characteristic that the surface of the prepared support concave is consistent with the bottom of the prepared needle, the assembly of the prepared needle 4 and the digital oral cavity model is completed, the arrangement of the prepared needle 4 with various axial positions is completed at the position of the support concave 2, the number of the prepared needles 4 is adjusted according to the preparation range of the support concave 2, and generally, a group of prepared needles 4 arranged in one support concave 2 is 4-8, as shown in figure 4.
E. Corresponding preliminary needle guide ring data is generated from each set of preliminary needles 4 placed.
Corresponding prepared needle guide ring data are generated in software, and the prepared needle guide ring 5 is a guide structure matched with the placed prepared needle 4 in size, angle, length and the like. These lead-ring data are all derived.
F. And generating corresponding prepared needle guide rings 5 according to the prepared needle guide ring data of each group, and integrally connecting the prepared needle guide rings 5 of each group to form a prepared plug-in model 8.
And importing all the guide ring data into dental design software again, and putting the guide ring data which are free of blocking and overlapping and correspond to the same set of prepared needles 4 together according to the three-dimensional positions of the prepared needle guide ring data of each set to form a set of prepared needle guide rings 5. For each group of prepared needle guide rings 5, the prepared needle guide rings 5 are connected into a whole through connecting accessories 6, on the basis of ensuring that the needle inserting position is not blocked, supporting rods 7 are added on the guide ring walls of part or all of the prepared needle guide rings 5 and used as pin inserting devices for fixing, and the supporting rods 7 are matched with corresponding retaining columns 3 to form a group of prepared plug-in module models 8 corresponding to the supporting concave 2. The thickness of the support rod 7 is also set to be not less than 2mm in order to secure the strength of the connecting member and the support rod 7, as shown in fig. 5.
G. And respectively removing the overlapped parts of the preparation insert models 8 and the support concave preparation positioning guide plate model 1 to respectively obtain the corresponding preparation inserts.
Each set of the preliminary plug-in model 8 and the preliminary positioning guide plate model 1 for the cradle is introduced into three-dimensional modeling software, and by using boolean operations, each set of the preliminary plug-in model 8 and the preliminary positioning guide plate model 1 for the cradle are subtracted from each other, and overlapping and blocking portions are removed, thereby completing the design of each preliminary plug-in, as shown in fig. 6.
H. And preparing a corresponding support concave preparation positioning guide plate (hereinafter referred to as a positioning guide plate) and a preparation insert entity according to the support concave preparation positioning guide plate model 1 and each group of preparation inserts to form a guide plate.
Outputting the support concave preparation positioning guide plate model 1 and the preparation plug-in unit into an STL format, and importing the support concave preparation positioning guide plate model and the preparation plug-in unit into typesetting software to finish typesetting. Then, the dental resin printer is used for processing each model respectively, and the supporting material is removed according to a standard flow. The support concave preparation positioning guide plate model 1 is printed with a positioning guide plate correspondingly, the preparation plug-in is printed with a preparation plug-in entity correspondingly, and the two are assembled to finally obtain the guide plate capable of accurately controlling the depth and the shape of the support concave 2. The preparation plug-in entity of the guide plate is connected to the retention column 3 of the corresponding support concave reserved area through the support column, the corresponding preparation machine needle 4 is taken out, and the abutment is prepared by the support concave 2 according to the guide of the corresponding guide ring.
Example two
The embodiment discloses a guide plate for digitally and accurately guiding a support recess preparation process, which is manufactured by the manufacturing method of the first embodiment.
EXAMPLE III
The embodiment discloses a use method of a guide plate (hereinafter referred to as a guide plate) for digitally and accurately guiding a support recess preparation process in the second embodiment, which includes:
A. the positioning guide is positioned within the patient's mouth.
B. A group of preparation insertion entity is fixed on a retention column 3 of the positioning guide plate through a support column, and a doctor performs support recess preparation on a reserved area on the positioning guide plate by using a matched preparation needle (usually, a preparation needle with a scale is selected) under the guidance of each guide ring of the preparation insertion entity. Each time a set of cradles 2 is ready to be completed, the replacement of the ready insert entity begins with the preparation of the next set of cradles 2, and so on, until all cradles 2 are ready to be completed, as shown in fig. 7.
C. The (last group of) preparation insert entities are removed, and under the guidance of the positioning guide plates, the tooth body parts corresponding to the respective holding recesses 2 are finished.
D. And taking down the positioning guide plate, and polishing and shaping the shape of the boundary of the support concave 2 by using a polishing vehicle.
E. The location guide is worn for inspection and modification.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.
Claims (9)
1. A manufacturing method of a guide plate for digitally and accurately guiding a support concave preparation process is characterized by comprising the following steps:
constructing a digital oral cavity model according to the oral cavity data of the patient;
preparing a rest (2) on the digital oral cavity model;
designing a supporting concave preparation positioning guide plate model (1) according to a digital oral cavity model prepared with supporting concave parts (2), wherein at least a prepared form of each supporting concave part (2) is reserved on the supporting concave preparation positioning guide plate model (1);
according to the digital oral cavity model prepared with the supporting dents (2), corresponding prepared machine needles (4) are designed and placed at the supporting dents (2) respectively;
generating corresponding prepared needle guide ring data according to each set of prepared needles (4) which are placed;
generating corresponding prepared needle guide rings (5) according to the prepared needle guide ring data of each group, and connecting the prepared needle guide rings (5) of each group into a whole to form a prepared plug-in model (8);
respectively removing the overlapped parts of the preparation insert model (8) and the support concave preparation positioning guide plate model (1) of each group to respectively obtain corresponding preparation inserts;
and preparing corresponding support concave preparation positioning guide plates and preparation insert entities according to the support concave preparation positioning guide plate model (1) and each group of preparation inserts to form a guide plate.
2. A method for manufacturing a guide plate for digitally and accurately guiding a holding recess preparation process according to claim 1, wherein the holding recess preparation positioning guide plate model (1) is further designed with a retaining column (3) for connecting each group of preparation insert models (8), and the retaining column (3) surrounds the corresponding holding recess (2).
3. A method of manufacturing a guide plate for digitally and accurately guiding a cradling preparation process according to claim 2, wherein the diameter of each of the retaining columns (3) is not less than 2 mm.
4. The method for manufacturing a guide plate for digitally and accurately guiding a cradling and sinking preparation process according to claim 2, wherein the number of the retaining columns (3) of each set is 6 to 10.
5. A method for manufacturing a guide plate for digitally and accurately guiding a resting preparation process according to any one of claims 2 to 4, wherein said separately joining together each set of said preparation needle guide rings (5) comprises:
for each group of prepared needle guide rings (5), the prepared needle guide rings (5) are connected into a whole through connecting accessories (6), supporting rods (7) are added on the guide ring walls of part or all of the prepared needle guide rings (5), and the supporting rods (7) are matched with the corresponding retaining columns (3).
6. A method for manufacturing a guide plate for digitally and accurately guiding a cradle recess preparation process according to claim 1, wherein the preparation needles (4) are designed as calibrated preparation needles.
7. A method for manufacturing a guide plate for digitally and accurately guiding a cradle preparation process according to claim 1, wherein the step of separately removing the overlapping portions of each set of the preparation insert model (8) and the cradle preparation positioning guide plate model (1) comprises:
and subtracting the prepared insert model (8) and the support concave prepared positioning guide plate model (1) by using Boolean operation to remove overlapped and blocked parts.
8. A method for manufacturing a guide plate for digitally and accurately guiding a rest preparation process according to claim 1, wherein the step of preparing a corresponding rest preparation positioning guide plate and preparation insert entity according to the rest preparation positioning guide plate model (1) and each set of preparation inserts comprises:
and respectively guiding the support concave preparation positioning guide plate model (1) and each group of preparation inserts into a dental printer system, and respectively printing the support concave preparation positioning guide plate and each group of preparation insert entities by using the dental printer system.
9. A guide plate prepared by the method for manufacturing a guide plate for digitally and accurately guiding the process of preparing a holder recess according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110314823.1A CN113069232B (en) | 2021-03-24 | 2021-03-24 | Guide plate for digitally and accurately guiding support recess preparation process and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110314823.1A CN113069232B (en) | 2021-03-24 | 2021-03-24 | Guide plate for digitally and accurately guiding support recess preparation process and manufacturing method thereof |
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| CN113069232A true CN113069232A (en) | 2021-07-06 |
| CN113069232B CN113069232B (en) | 2022-03-01 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056546A (en) * | 1996-10-01 | 2000-05-02 | Van Handel; Ambrose B. | Claspless partials |
| US20120003604A1 (en) * | 2010-06-25 | 2012-01-05 | Takeshi Moriyama | Occlusal adjustment system |
| CN108618858A (en) * | 2017-07-26 | 2018-10-09 | 北京大学口腔医学院 | A kind of production method of functional areas tooth preparation guide plate, removable needle limiter of unloading |
| CN108618859A (en) * | 2018-02-06 | 2018-10-09 | 北京大学口腔医学院 | A kind of production method of high efficiency tooth preparation guide plate |
| CN110236714A (en) * | 2019-06-25 | 2019-09-17 | 西安医学院 | A kind of personalization removalbe partial denture bracket and its design method, manufacturing method |
-
2021
- 2021-03-24 CN CN202110314823.1A patent/CN113069232B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6056546A (en) * | 1996-10-01 | 2000-05-02 | Van Handel; Ambrose B. | Claspless partials |
| US20120003604A1 (en) * | 2010-06-25 | 2012-01-05 | Takeshi Moriyama | Occlusal adjustment system |
| CN108618858A (en) * | 2017-07-26 | 2018-10-09 | 北京大学口腔医学院 | A kind of production method of functional areas tooth preparation guide plate, removable needle limiter of unloading |
| CN108618859A (en) * | 2018-02-06 | 2018-10-09 | 北京大学口腔医学院 | A kind of production method of high efficiency tooth preparation guide plate |
| CN110236714A (en) * | 2019-06-25 | 2019-09-17 | 西安医学院 | A kind of personalization removalbe partial denture bracket and its design method, manufacturing method |
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| CN113069232B (en) | 2022-03-01 |
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