CN110251259B - Application method of digital tray - Google Patents
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- CN110251259B CN110251259B CN201910222638.2A CN201910222638A CN110251259B CN 110251259 B CN110251259 B CN 110251259B CN 201910222638 A CN201910222638 A CN 201910222638A CN 110251259 B CN110251259 B CN 110251259B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/003—Apparatus for curing resins by radiation
- A61C19/004—Hand-held apparatus, e.g. guns
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/04—Measuring instruments specially adapted for dentistry
Abstract
The invention relates to a using method of a novel digital tray, which comprises the following steps: a) taking the mold by using a tray; b) acquiring data of a jaw or a tooth body and a radiation blocking material; c) acquiring data of soft tissues and the radiation blocking material; d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw or tooth body and the soft tissue. The invention can replace the traditional mode of acquiring soft and hard tissue information, does not need to manufacture a radiation guide plate, simplifies the preparation flow and saves the cost.
Description
Technical Field
A novel digital tray using method can be applied to the fields of oral implantation, orthodontics, surgery, repair and the like which need to acquire impression information or the fields which want to integrate soft-printed tissue data by only using CBCT equipment.
Technical Field
With the progress of science and technology, methods for acquiring digital oral surface information are increasingly diversified. Two methods are common, one is to take an impression of the oral cavity, then pour a plaster model, and then digitize this oral surface information by scanning the plaster model. However, in the process, the mixing of the impression, the control of the impression taking time and the control of gypsum pouring all influence the accuracy of the finally obtained data, and simultaneously, the process is time-consuming and labor-consuming and also needs a large amount of equipment material cost. Another method is direct scanning with an intraoral scanner, but this method has high operational demands on the doctor. Meanwhile, an extra scanning instrument needs to be purchased, which is a great financial burden for clinic.
In addition, in the oral cavity, data after integrating soft and hard tissues of the oral cavity are often needed. At present, information on the jaw and the anatomical structure is acquired clearly, and three-dimensional CT or cone beam scanning CT (CBCT) is required. In addition, a high-precision oral surface scanning device is used clinically to perform fine scanning of the oral tissue surface to obtain dental tissue and soft tissue information (hereinafter, abbreviated as STL data). Because both the CBCT data and the STL data contain tooth tissue information, the CBCT data and the STL data can be integrated together by matching the tooth tissue information of the two data, thereby simultaneously presenting bone information, tooth information and soft tissue information of a patient. However, when the remaining teeth in the oral cavity are not many or the oral cavity contains a lot of metal artifacts, it is difficult to use the above method, and a more complicated method of manufacturing a radiation guide plate is used to obtain clear soft tissue information.
In the prior art, at least two devices or two scans are used to obtain all integrated information, and the steps are as follows:
the dental film has no artifacts, and when the number of remaining teeth is more than 5:
1. acquiring the scanning data information of the oral surface of the patient by the following modes:
1) the data is scanned by a mouth scanner,
or 2) scanning the data of the impression with a scanner,
or 3) scanning the data of the positive mold created by the perfusion impression,
or 4) CBCT data of a positive mold built by the perfusion impression;
2. acquiring CBCT data information of a patient;
3. and manually selecting similar position points in the software for matching.
When the dental film has artifacts or the remaining teeth are less than 5:
1. manufacturing a radiation guide plate similar to a movable denture, and marking a radiation blocking point on the surface of the radiation guide plate;
2. the patient wears the radiation guide plate and then shoots once by using CBCT equipment;
3. the radiation guide plate is singly placed in CBCT equipment and then is shot once;
4. and (4) carrying out superposition and matching through the radiation blocking mark points in software.
The current method comprises the following steps: when the dental film has no artifact and the number of the remaining teeth is more than 5, in the data matching process, an operator needs to manually select points at the same tooth position by software for matching, and the method needs to be judged by naked eyes.
The prior art data matching method has the defects that: the dependence of the model precision on the medical technology is large, and the equipment cost is high. The matching accuracy is not high, the operation time is long, and the possibility of matching failure even occurs. When the residual teeth in the oral cavity are not too many, the radiation guide plate method is adopted for matching, a patient needs to visit for many times, the radiation guide plate (similar to a product of a removable denture) is manufactured in advance, and then CBCT shooting is carried out, so that the cost and the radiation dose of the patient are increased invisibly, the time and the workload of a case are also increased, and the whole process is very complex.
Disclosure of Invention
The invention provides a use method of a novel digital tray, wherein the tray is made of special materials, a radiation blocking material is embedded in the tray, and the tray can be provided with a UV light source to help curing of an impression material. The impression material may be a photosensitive material or a thermosensitive material, and is placed in the tray in an appropriate amount depending on the size of the tray. After the tray is directly placed in the mouth of a patient, the impression material can be cured according to the temperature change of the mouth or the tray is provided with UV light. Once the patient wears the tray, the CBCT equipment can be used for shooting once, then the tray is taken down and is used for shooting the tray once by the CBCT equipment alone, the information of the radiation blocking materials in the tray and the CBCT data can be matched accurately, the matching precision of the data can be greatly improved, the comfort level of the patient is improved, the frequency of the repeated diagnosis is reduced, the clinical medical cost is reduced, the difficulty of integrating the two data is reduced, and particularly when the number of the missing teeth is large, the manufacturing is convenient and easy.
In order to solve the technical problems, the invention adopts the following technical scheme:
(1) the use method of the novel digital tray comprises the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material; the impression material does not need to be blended, and the impression material is directly placed in a tray, so that an impression of soft and hard tissue information of the oral cavity can be obtained;
b) obtaining data of the jaw or tooth body and the radiation blocking material: putting the tray in the a) into the mouth of a patient, taking out the tray, putting the tray back into the mouth of the patient after the impression material is hard and solid, and shooting CBCT to obtain the information of the jaw or tooth of the patient and the information of the radiation blocking material to obtain the relative position of the radiation blocking material and the jaw or tooth;
c) acquiring data of soft tissues and the radioresistant material: independently shooting the CBCT on the tray in the step b) to obtain soft tissue information and radiation blocking material information obtained by the tray, thereby obtaining the relative position of the soft tissue and the radiation blocking material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw or tooth body and the soft tissue.
(2) The use method of the novel digital tray comprises the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material; putting the tray into the mouth of a patient, and taking out the material to be imprinted for hard fixation;
b) obtaining data of the jaw or tooth body and the radiation blocking material: scanning the tray after the impression material in the step a) is hardened by using surface scanning equipment to obtain information of the jaw bone or the tooth body of the patient and information of the radiation blocking material to obtain the relative position of the radiation blocking material and the jaw bone or the tooth body;
c) acquiring data of soft tissues and the radioresistant material: scanning the tray after the impression material in the step a) is hardened by CBCT equipment to obtain soft tissue information and radiation blocking material information obtained by the tray, so as to obtain the relative position of the soft tissue and the radiation blocking material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw or tooth body and the soft tissue.
(3) The use method of the novel digital tray according to (1) or (2), wherein the tray is made of non-metallic materials, plastics or ceramics.
(4) The use method of the novel digital tray according to any one of the items 1 to 3, wherein the tray is hollow or has no holes in the whole.
(5) The use method of the novel digital tray according to any one of (1) to (4), the tray is divided into an upper tray and a lower tray, and the trays with a large size, a middle size and a small size are arranged according to the size of a dental arch of a patient.
(6) The use method of the novel digital tray according to any one of (1) to (5), wherein the shape of the radiation blocking material is circular, polygonal, line or point.
(7) The use method of the novel digital tray according to any one of (1) to (6), wherein the bottom of the tray is provided with three point butt joint foam pads, and the foam pads are detachable. So that the whole tray can be conveniently and clearly shot without being confused with CBCT base data, and post processing is convenient.
(8) The use of the novel digitizing tray according to any of (1) to (7), the tray being provided with UV ultraviolet lamps.
(9) The use method of the novel digital tray according to any one of (1) to (8), wherein the impression material is a photosensitive material or a thermosensitive material.
(10) The use of the novel digitizing tray according to any of (1) to (9), the photosensitive material is cured by a fixed wavelength light source.
(11) The use method of the novel digital pallet according to any one of (1) to (10), wherein the heat-sensitive material is cured by temperature control.
(12) The use method of the novel digital tray according to any one of (1) to (11), wherein the thermosensitive material is soft at a temperature lower than 34 ℃ and gradually hardened at a temperature higher than 34 ℃.
(13) The use method of the novel digital tray according to any one of (1) to (12), wherein the tray is a single-use tray or a multi-use tray.
(14) The novel digital tray according to any one of (1) to (13), wherein the tray type and the impression material type are used separately or packaged in combination.
The use method of the novel digital tray provided by the invention can replace the traditional mode of acquiring soft and hard tissue information, doctors do not need to allocate impression materials independently, the work efficiency of the doctors and the precision of impressions are improved, the clinical input cost is reduced, and the clinical work mode is changed; meanwhile, the flow is greatly improved, and a doctor does not need to manufacture a radiation guide plate under the condition that a large number of remaining teeth exist in the mouth, but uses the mode, so that the preparation flow is simplified, and the cost is saved. The invention has the beneficial technical effects that:
(1) due to the fact that the radio-resistant material is arranged, a matching point does not need to be selected manually, the precision and the success rate of data matching can be greatly improved, when the number of residual teeth in the oral cavity is small, a radiation guide plate does not need to be manufactured, the comfort degree of a patient can be greatly improved, the frequency of repeated diagnosis is reduced, the clinical medical cost is reduced, and the difficulty of integrating CBCT data is reduced.
(2) Because the radiation guide plate is not required to be manufactured, the CBCT is directly utilized to directly scan the data of the oral surface and the bone, and the accuracy of false tooth manufacturing, operation guide plate manufacturing and the like is improved.
(3) Because the impression material does not need to be mixed before the operation, the chair-side efficiency of the doctor for taking the impression is improved, and the impression taking error caused by insufficient mixing experience is avoided.
The meaning of the relevant terms in this patent is as follows:
1. CBCT refers to a device for acquiring three-dimensional image data information of the oral cavity, such as cone beam scanning CT.
2. The CBCT data refers to information on jaw bones, tooth bodies and the like obtained by CBCT.
3. STL data refers to information relating to dental tissues, soft tissues, and the like in the oral cavity. The STL data containing information about dental tissue, soft tissue, etc. can be obtained by performing a fine scan of the surface of the oral tissue using a high-precision oral surface scanning device.
4. A radiation guide plate: a resin auxiliary device similar to a removable denture realizes simultaneous development of tooth arrangement information and radiation point information in CBCT.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a flow chart of a method of using the novel digitizing tray of the present invention;
FIG. 2 is a schematic view of a pallet being placed into a mouth for mold removal;
FIG. 3 is a schematic view of a panned CBCT;
FIG. 4 is a schematic view of a tray taken alone for CBCT;
FIG. 5 is a schematic illustration of data matching by placement of material information;
FIG. 6-1 is a schematic view of an integral imperforate tray;
FIG. 6-2 is a schematic view of a hollowed-out tray;
FIG. 7 is a bottom view of the pallet;
FIG. 8 is a tray provided with a bar-shaped UV lamp;
FIG. 9 is a tray provided with spot UV lamps;
FIG. 10 is a schematic view of the combined use of tray type and impression material type;
fig. 11 is a schematic view showing the use of the impression material in individual packages.
Detailed Description
Example 1:
as shown in fig. 1-5, a novel method for using a digital tray comprises the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material;
b) obtaining data of the jaw or tooth body and the radiation blocking material: putting the tray in the step a) into the mouth of a patient (as shown in figure 2), taking out the tray, putting the tray back into the mouth of the patient after the impression material is hard and fixed, and shooting CBCT (as shown in figure 3) to obtain the information of the jaw or tooth of the patient and the information of the radiation blocking material, so as to obtain the relative position of the radiation blocking material and the jaw or tooth;
c) acquiring data of soft tissues and the radioresistant material: separately shooting the CBCT (as shown in figure 4) on the tray in the step b) to obtain soft tissue information and radioresistance material information obtained by the tray, thereby obtaining the relative positions of the soft tissue and the radioresistance material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw or tooth body and the soft tissue (as shown in fig. 5).
Preferably, the tray is made of non-metal materials, plastics or ceramics; the tray is hollow (as shown in figure 6-2), or is entirely free of holes (as shown in figure 6-1); the tray is divided into an upper jaw and a lower jaw, and is provided with a large tray, a middle tray and a small tray according to the size of the occlusal arch of the patient; the tray is a disposable tray or a multi-use tray.
Preferably, the shape of the radiation blocking material is circular, polygonal, linear or punctiform; the bottom of tray is equipped with three point butt joint foam pads (as shown in figure 7), and the foam pad can be dismantled to conveniently clearly shoot the tray whole and do not obscure with CBCT base data, make things convenient for post processing.
Preferably, the tray is provided with UV ultraviolet lamps, which may be in the shape of a strip (as shown in fig. 8) or in the shape of a dot (as shown in fig. 9).
Preferably, the impression material is a photosensitive material or a thermosensitive material, the photosensitive material is cured by a light source with fixed wavelength, is soft under the condition of less than 34 ℃, and is gradually hardened under the condition of more than 34 ℃; the heat sensitive material is cured by temperature control.
Preferably, the tray type is used separately from the impression material type (as shown in fig. 11). The tray type is packaged with the type of impression material, the upper portion being the impression material and the lower portion being the barrier material package (as shown in fig. 10).
Example 2:
as shown in fig. 1, 2 and 5, a novel method for using a digital tray comprises the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material; placing the tray into the patient's mouth (as shown in fig. 2), and taking out the material to be imprinted for hardening;
b) obtaining data of the jaw or tooth body and the radiation blocking material: scanning the tray after the impression material in the step a) is hardened by using surface scanning equipment to obtain information of the jaw bone or the tooth body of the patient and information of the radiation blocking material to obtain the relative position of the radiation blocking material and the jaw bone or the tooth body;
c) acquiring data of soft tissues and the radioresistant material: scanning the tray after the impression material in the step a) is hardened by CBCT equipment to obtain soft tissue information and radiation blocking material information obtained by the tray, so as to obtain the relative position of the soft tissue and the radiation blocking material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw or tooth body and the soft tissue (as shown in fig. 5).
Preferably, the tray is made of non-metal materials, plastics or ceramics; the tray is hollow (as shown in figure 6-2), or is entirely free of holes (as shown in figure 6-1); the tray is divided into an upper jaw and a lower jaw, and is provided with a large tray, a middle tray and a small tray according to the size of the occlusal arch of the patient; the tray is a disposable tray or a multi-use tray.
Preferably, the shape of the radiation blocking material is circular, polygonal, linear or punctiform; the bottom of tray is equipped with three point butt joint foam pads (as shown in figure 7), and the foam pad can be dismantled to conveniently clearly shoot the tray whole and do not obscure with CBCT base data, make things convenient for post processing.
Preferably, the tray is provided with UV ultraviolet lamps, which may be in the shape of a strip (as shown in fig. 8) or in the shape of a dot (as shown in fig. 9).
Preferably, the impression material is a photosensitive material or a thermosensitive material, the photosensitive material is cured by a light source with fixed wavelength, is soft under the condition of less than 34 ℃, and is gradually hardened under the condition of more than 34 ℃; the heat sensitive material is cured by temperature control.
Preferably, the tray type is used separately from the impression material type (as shown in fig. 11). The tray type is packaged with the type of impression material, the upper portion being the impression material and the lower portion being the barrier material package (as shown in fig. 10).
The above embodiments are not intended to be exhaustive or to limit the invention to other embodiments, and the above embodiments are intended to illustrate the invention and not to limit the scope of the invention, and all applications that can be modified from the invention are within the scope of the invention.
This written description uses examples to illustrate the invention, including the best mode, and also to enable any person skilled in the art to make and use the invention. The patentable scope of the invention includes the contents of the claims, and the contents of the detailed description and other examples within the specification. Such other examples are intended to be within the scope of the claims, provided they contain the features described in the same written language as the claims, or they contain features described in a similar written language with no essential difference from the claims.
All patents, patent applications, and other references cited herein are incorporated by reference in their entirety. However, if a term in the present application conflicts with a term in the incorporated reference, the term from the present application takes precedence.
It should be noted that the terms "first," "second," and the like do not denote any order, quality, or importance, but rather are used to distinguish one technical feature from another. The modifier "about" used in connection with a quantity is inclusive of the stated value and the meaning dictated by the context. (e.g., it contains errors in measuring a particular quantity).
Claims (14)
1. A method for using a digital tray is characterized by comprising the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material;
b) acquiring data of a jaw bone and a radiation blocking material or data of a tooth body and the radiation blocking material: putting the tray in the a) into the mouth of a patient, taking out the tray, putting the tray back into the mouth of the patient after the impression material is hard and solid, and shooting a CBCT (cone beam computed tomography) to obtain the information of the jaw bone and the information of the radiation blocking material of the patient or the information of the tooth body and the radiation blocking material of the patient; obtaining the relative position of the radiation-blocking material and the jaw bone or the relative position of the radiation-blocking material and the tooth body;
c) acquiring data of soft tissues and the radioresistant material: independently shooting the CBCT on the tray in the step b) to obtain soft tissue information and radiation blocking material information obtained by the tray, thereby obtaining the relative position of the soft tissue and the radiation blocking material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw bone and the soft tissue, or the relative position of the tooth body and the soft tissue.
2. A method for using a digital tray is characterized by comprising the following steps:
a) taking the mold by using a tray: selecting a tray which is suitable for the size of the dental arch of a patient, and putting impression materials into the tray; the tray is provided with an anti-radiation material and/or the impression material is provided with the anti-radiation material; putting the tray into the mouth of a patient, and taking out the material to be imprinted for hard fixation;
b) obtaining data of a jaw bone and an anti-radiation material, or data of a tooth body and the anti-radiation material: scanning the tray after the impression material in the step a) is hardened by using surface scanning equipment to obtain jaw information and radiation blocking material information of a patient, or tooth body information and radiation blocking material information; obtaining the relative position of the radiation-blocking material and the jaw bone or the relative position of the radiation-blocking material and the tooth body;
c) acquiring data of soft tissues and the radioresistant material: scanning the tray after the impression material in the step a) is hardened by CBCT equipment to obtain soft tissue information and radiation blocking material information obtained by the tray, so as to obtain the relative position of the soft tissue and the radiation blocking material;
d) data matching: matching the data obtained in b) with the data obtained in c) by the information of the radiopaque material, thereby obtaining the relative position of the jaw bone and the soft tissue, or the relative position of the tooth body and the soft tissue.
3. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray is of a non-metallic material.
4. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray is hollow or has no holes on the whole.
5. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray is divided into an upper jaw and a lower jaw, and is provided with a large tray, a medium tray and a small tray according to the size of the occlusal arch of the patient.
6. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the shape of the radiation blocking material is circular, polygonal, linear or punctiform.
7. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the bottom of tray is equipped with three point butt joint foam pads, and the foam pad can be dismantled.
8. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray is provided with a UV ultraviolet lamp.
9. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the impression material is a photosensitive material or a thermosensitive material.
10. The method of using a digitizing tray of claim 9, wherein: the photosensitive material is cured by a fixed wavelength light source.
11. The method of using a digitizing tray of claim 9, wherein: the heat sensitive material is cured by temperature control.
12. The method of using a digitizing tray of claim 11, wherein: the heat sensitive material is soft at temperatures below 34 degrees celsius and gradually hardens above 34 degrees celsius.
13. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray is a disposable tray or a multi-use tray.
14. The method of using a digitizing tray according to claim 1 or 2, characterized in that: the tray type and the impression material type are used alone or in combination with packaging.
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| CN111227862A (en) * | 2020-03-17 | 2020-06-05 | 徐州市口腔医院 | General type oral implantation data auxiliary registration device |
| CN112535545B (en) * | 2020-12-24 | 2022-04-15 | 成都橙子思创医疗科技有限公司 | Complete-process digital manufacturing method of complete denture |
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| CN105447908A (en) * | 2015-12-04 | 2016-03-30 | 山东山大华天软件有限公司 | Dentition model generation method based on oral cavity scanning data and CBCT (Cone Beam Computed Tomography) data |
| CN107019570A (en) * | 2017-04-13 | 2017-08-08 | 江苏福隆数齿科技有限公司 | Digital implementation is repaired in plantation by a kind of oral cavity chair |
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Denomination of invention: Use method of digital tray Effective date of registration: 20220126 Granted publication date: 20210706 Pledgee: Industrial Bank Limited by Share Ltd. Chengdu branch Pledgor: Rurong (Chengdu) Medical Technology Co.,Ltd. Registration number: Y2022510000025 |