CN112842602A - Minimally invasive cortical bone incision dental operation guide plate and manufacturing method thereof - Google Patents
Minimally invasive cortical bone incision dental operation guide plate and manufacturing method thereof Download PDFInfo
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- CN112842602A CN112842602A CN202010113913.XA CN202010113913A CN112842602A CN 112842602 A CN112842602 A CN 112842602A CN 202010113913 A CN202010113913 A CN 202010113913A CN 112842602 A CN112842602 A CN 112842602A
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- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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- A61C19/06—Implements for therapeutic treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
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- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
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Abstract
The invention discloses a minimally invasive cortical bone incising dental operation guide plate and a manufacturing method thereof, the operation guide plate comprises a plurality of semi-surrounding type single jaw guide plates, the upper parts of the semi-surrounding type single jaw guide plates cover or partially cover the occlusal surface of teeth to form a first fixing part, the side parts of the semi-surrounding type single jaw guide plates cover the buccal surface or the labial surface of the teeth and the gingiva, the side parts of the semi-surrounding type single jaw guide plates are also provided with a second fixing part and at least one operation window arranged on the side parts, the shape of the semi-surrounding type single jaw guide plates is attached to the teeth and fixed in the oral cavity, the plurality of semi-surrounding type single jaw guide plates are spliced with each other to form the operation guide plate, the invention adopts the plurality of semi-surrounding type single jaw guide plates which are positioned through the buccal side or the lingual side and are fixed through the combining surface to form the operation guide plate, the convenience for positioning the semi-surrounding type single jaw guide plates is increased, the design for positioning in part is, the undercut of the surgical guide plate after the surgical guide plate is in place is reduced as much as possible.
Description
Technical Field
The invention relates to the field of dental operation guide plates, in particular to a dental operation guide plate for minimally invasive cortical bone incision and a manufacturing method thereof.
Background
With the increasing number of people seeking orthodontic treatment, how to shorten orthodontic treatment becomes a problem focus which needs to be solved in recent years and is also a research focus of researchers;
in the existing method capable of accelerating tooth movement, the cortex lycii radicis cutting operation is proved to be effective through clinical and basic researches, so that the tooth movement can be accelerated, and the osteogenesis potential can be effectively increased;
in the centuries of the development, along with the development of the technology, the minimally invasive ultrasonic osteotomy is advocated by more and more students by virtue of the characteristics of small wound, light pain, good patient applicability and the like, the most serious risk of the osteotomy comes from the fact that the root of a tooth is positioned only by the experience of a doctor in the operation and cannot be accurately positioned, so that the root of the tooth is damaged, therefore, the success rate of the operation is greatly increased by guiding the osteotomy by utilizing a digital guide plate in the operation, and the risk of the operation is reduced.
Disclosure of Invention
The invention aims to solve the technical problems that most of the existing cortical bone incisor guide plates are vertically fixed or integrally positioned, and the soft tissue at the lip side is always inverted concave after the guide plates are positioned, so that the ultrasonic osteotome is inaccurate in depth positioning, poor in visual field, inconvenient for a clinician to operate and incapable of seeing the soft tissue below the guide plates, and the risk of operation is greatly increased; the dental support part can not accommodate a bracket, which can prevent a patient who has performed bracket bonding from using a guide plate, however, in the process of orthodontic treatment, the patient who has performed tooth extraction orthodontics often needs to perform the stage of closing tooth extraction gap after initial bracket bonding, aligning and leveling, and the existing guide plate design does not consider the requirements of the patient, the minimally invasive cortical bone dissection dental surgery guide plate method adopts a plurality of semi-enclosed single jaw guide plates which are positioned through buccal side or lingual side and fixed in a combined manner to form the surgical guide plate, increases the convenience of positioning the semi-enclosed single jaw guide plate, realizes the design of positioning in parts, facilitates the convenience of carrying out cortical bone dissection by a clinician in parts, reduces the undercut after the surgical guide plate is positioned as much as possible, is more beneficial to the deep positioning, and effectively increases the accuracy of the minimally invasive cortical bone dissection operation, is beneficial to the convenience of clinical operation and the comfort of patients;
the semi-enclosed single-jaw guide plate is made of transparent materials, so that a clinician can see the semi-enclosed single-jaw guide plate and operate soft tissues under the semi-enclosed single-jaw guide plate under direct vision while accurately positioning, and the risk of cortical bone incision is further reduced;
the second fixing position is in accordance with the gap between two adjacent teeth of a patient aiming at the common patient, so that the second fixing position is convenient to fix; when the patient wears the appliance, the shape of the second fixing position is matched with the bracket, so that the fixing and correcting patient can smoothly perform the cortical osteotomy during the treatment period;
the second fixing position is matched with the first fixing position, and the second fixing position can be respectively attached to the upper part and the lower part of the tooth and fix the oral cavity guide plate, so that the guide plate can be placed into the oral cavity from the buccal side surface or the labial surface of the tooth and is attached to the tooth surface and the gum;
compared with a guide plate sleeved from the occlusal surface of the tooth, the sleeved guide plate is easy to shake due to the tooth with a big head and a small heel, and the guide plate is difficult to be tightly attached to the gum, so that the position and the depth of an operation incision cannot be accurately controlled;
the combination of CBCT and 3D mouth scanning computer simulation is adopted, the combination of hard tissues and soft tissues of a tooth body is realized, the accurate position of a tooth root and the clearance between the tooth roots are determined through the CBCT, the accurate design and the positioning of the position and the depth of an operation incision are facilitated, the 3D mouth scanning is used for accurately positioning the position of a mucosa, a guide plate is tightly attached to the mucosa, and no redundant gap caused by tissue undercut is generated, so that the incision depth and direction positioning are more accurate, and the defect caused by the prior art is overcome.
The invention also provides a manufacturing method of the dental operation guide plate for minimally invasive cortical bone incision.
In order to solve the technical problems, the invention provides the following technical scheme:
according to the first aspect, the dental operation guide plate for minimally invasive cortical bone incision comprises a plurality of semi-enclosed single-jaw guide plates, wherein the upper parts of the semi-enclosed single-jaw guide plates cover or partially cover the occlusion surface of teeth to form a first fixing part, the side parts of the semi-enclosed single-jaw guide plates cover the buccal side surfaces or the labial surfaces of the teeth and the outer side surfaces of the gums, the side parts of the semi-enclosed single-jaw guide plates are further provided with a second fixing part and at least one operation window arranged on the side parts, the shape of the semi-enclosed single-jaw guide plates is attached to the buccal side surfaces or the labial surfaces of the teeth and the outer side surfaces of the gums and fixed in the oral cavity, and the plurality of semi-enclosed single-jaw guide plates are spliced with.
The minimally invasive cortical bone incision dental surgery guide plate comprises an upper jaw guide plate or a lower jaw guide plate which is formed by splicing at least three semi-surrounding single jaw guide plates.
The minimally invasive cortical bone incision dental surgery guide plate is characterized in that the upper jaw guide plate or the lower jaw guide plate is made of three semi-enclosed single jaw guide plates made of transparent materials: the first back tooth area guide plate, the front tooth area guide plate and the second back tooth area guide plate are spliced and formed, and the semi-enclosed single jaw guide plate is transparent, so that a doctor can see soft tissues under the semi-enclosed single jaw guide plate and operate the soft tissues.
The minimally invasive cortical bone incisure dental surgery guide plate is characterized in that the first posterior tooth area guide plate and the second posterior tooth area guide plate are located from the buccal side direction of teeth, and the anterior tooth area guide plate is located from the labial side direction of teeth.
The minimally invasive cortical bone incisor dental operation guide plate is characterized in that the splicing surfaces of the semi-enclosed single-jaw guide plates form a third fixing part through a meshing part, and the third fixing part fixes the longitudinal position between the semi-enclosed single-jaw guide plates. The meshing part can adopt triangular saw teeth similar to gears, rectangular saw teeth or irregular concave-convex shapes which can be meshed with each other.
The minimally invasive cortical bone incision dental surgery guide plate is characterized in that the second fixing portion is attached to a bracket on the surface of a tooth in shape, and the second fixing portion is connected with the bracket for fixing, so that a patient wearing the correcting device can use the guide plate conveniently.
The minimally invasive cortical bone incision dental surgery guide plate is characterized in that the second fixing portion is fitted with a groove between two adjacent teeth in shape, and the second fixing portion is fixed with a gap groove between the two adjacent teeth, so that the minimally invasive cortical bone incision dental surgery guide plate is convenient for common patients to use.
In a second aspect, a method for manufacturing a minimally invasive cortical bone incisure dental surgery guide plate comprises the following steps:
step 1: the method comprises the steps of obtaining oral cavity data of a patient by using 3D mouth scanning, and establishing a three-dimensional oral cavity model of the patient according to the oral cavity data, wherein the three-dimensional oral cavity model comprises tooth arrangement, crown shape and gum soft tissue data of the patient;
step 2: collecting tooth data of the tooth roots, alveolar bones and the intervals among the tooth roots of the patient by using CBCT;
and step 3: the three-dimensional oral cavity model scanned by the 3D mouth is superposed with the tooth data collected by the CBCT to carry out three-dimensional reconstruction, and a three-dimensional reconstruction model with accurate soft and hard tissues in the mouth of the patient is obtained;
and 4, step 4: drawing the range of the surgical guide plate according to the positioning direction of the surgical guide plate, wherein the positioning direction is that the buccal side or the lingual side is positioned horizontally;
and 5: according to the position, the direction and the depth of the incision of the cortical opening, the position of soft and hard tissues in an oral cavity in the three-dimensional reconstruction model is used for arranging the operation incision between the tooth roots, and the direction is parallel to the tooth roots as much as possible;
step 6: opening an operation window of the ultrasonic osteotome on the operation guide plate;
and 7: after the surgical guide plate is designed, exporting forming data; preferably, STL (StereoLithography) data is derived using StereoLithography computer aided design and fabrication.
And 8: preparing a surgical guide plate by using a molding device; preferably, a 3D laser printer can be selected for printing the resin surgical guide plate.
Preferably, the method further comprises the step 9: and cutting the prepared surgical guide plate into at least two surgical guide plates along the interdental direction, wherein the splicing surfaces of the split guide plates are mutually meshed. Preferably, the cutting is divided into three parts, namely a first back tooth area guide plate, a front tooth area guide plate and a second back tooth area guide plate, and the meshing section can be triangular saw teeth similar to a gear, rectangular saw teeth or irregular concave-convex shapes capable of meshing with each other.
Preferably, at step 7, at least two separate guide plates engaging with each other in the direction between the teeth can be independently formed and used together. Preferably, the three split guide plates are formed by splicing a first rear tooth area guide plate, a front tooth area guide plate and a second rear tooth area guide plate, and the meshing splicing surface can be triangular sawteeth similar to gears, rectangular sawteeth or irregular concave-convex shapes capable of meshing with each other.
The manufacturing method of the dental operation guide plate for minimally invasive cortical bone incision is characterized in that,
the size of the operation window in the step 6 needs to be matched with the size of a cutter head of the ultrasonic osteotome;
in the step 8, the 3D forming equipment is a 3D laser resin printer, and the operation guide plate is a photosensitive resin operation guide plate.
The manufacturing method of the dental operation guide plate for minimally invasive cortical bone incision is characterized in that,
in the step 7, the operation guide plate is spliced by at least two split guide plates which are mutually meshed along the interdental direction;
the size of the operation window in the step 6 needs to be matched with the size of a cutter head of the ultrasonic osteotome;
in the step 8, the 3D forming equipment is a 3D laser resin printer, and the operation guide plate is a photosensitive resin operation guide plate.
According to the technical scheme provided by the minimally invasive cortical bone incision dental operation guide plate and the manufacturing method thereof, the invention has the following technical effects:
the operation guide plate is composed of a plurality of semi-surrounding single jaw guide plates which are positioned at the buccal side or the lingual side and fixed in a combined manner, so that the convenience of positioning the semi-surrounding single jaw guide plate is improved, the design of partial positioning is realized, the convenience of performing a cortical bone dissection by a clinician is facilitated by the partial positioning, undercut of the operation guide plate after the positioning is reduced as much as possible, the depth positioning is facilitated, the accuracy of a periodontal minimally invasive cortical bone dissection operation is effectively improved, and the convenience of clinical operation and the comfort of a patient are facilitated;
the semi-enclosed single-jaw guide plate is made of transparent materials, so that a clinician can see the semi-enclosed single-jaw guide plate and operate soft tissues under the semi-enclosed single-jaw guide plate under direct vision while accurately positioning, and the risk of cortical bone incision is further reduced;
the second fixing position is in accordance with the gap between two adjacent teeth of a patient aiming at the common patient, so that the second fixing position is convenient to fix; when the patient wears the appliance, the shape of the second fixing position is matched with the bracket, so that the fixing and correcting patient can smoothly perform the cortical osteotomy during the treatment period;
the second fixing position is matched with the first fixing position, and the second fixing position can be respectively attached to the upper part and the lower part of the tooth and fix the oral cavity guide plate, so that the guide plate can be placed into the oral cavity from the buccal side surface or the labial surface of the tooth and is attached to the tooth surface and the gum;
compared with a guide plate sleeved from the occlusal surface of the tooth, the sleeved guide plate is easy to shake due to the tooth with a big head and a small heel, and the guide plate is difficult to be tightly attached to the gum, so that the position and the depth of an operation incision cannot be accurately controlled;
the combination of CBCT and 3D mouth scanning computer simulation is adopted, the combination of hard tissues and soft tissues of a tooth body is realized, the accurate position of a tooth root and the clearance between the tooth roots are determined through the CBCT, the accurate design and the positioning of the position and the depth of an operation incision are facilitated, the 3D mouth scanning is used for accurately positioning the position of a mucosa, a guide plate is tightly attached to the mucosa, no redundant gap caused by tissue undercut is generated, and the incision depth and direction positioning can be more accurate.
Drawings
FIG. 1 is a schematic view showing a structure of a guide plate for minimally invasive cortical bone dissection dental surgery according to the present invention;
FIG. 2 is a schematic view showing a cross-sectional structure of a guide plate for minimally invasive cortical bone incision dental surgery according to the present invention, mounted on a tooth;
FIG. 3 is a schematic cross-sectional view of another minimally invasive cortical bone incisional dental surgical guide of the present invention mounted to a tooth;
FIG. 4 is a schematic view of the upper row of teeth;
fig. 5 is a schematic view showing a structure in which a guide for minimally invasive cortical bone incision dental surgery according to the present invention is installed on an upper row of teeth.
Wherein the reference numbers are as follows:
a semi-enclosed single jaw guide 101, a first fixing portion 102, a second fixing portion 103, an operating window 104, a third fixing portion 105, teeth 201, a root 202, gums 203, a (appliance) bracket 204, a first posterior dental zone guide 401, an anterior dental zone guide 402, a second posterior dental zone guide 403.
Detailed Description
In order to make the technical means, the characteristics, the purposes and the functions of the invention easy to understand, the invention is further described with reference to the specific drawings.
The invention provides a dental surgical guide plate for minimally invasive cortical bone dissection and a manufacturing method thereof, aiming at adopting a plurality of semi-enclosed single jaw guide plates which are positioned on the buccal side or the lingual side and fixed on the close surface to form the surgical guide plate, increasing the positioning convenience of the semi-enclosed single jaw guide plate, realizing the design of partial positioning, simultaneously, the partial positioning is favorable for the convenience of a clinician for performing the cortical bone dissection, reducing the undercut after the surgical guide plate is positioned as much as possible, is more favorable for the deep positioning, effectively increases the precision of the minimally invasive periodontal cortical bone dissection operation, and is favorable for the convenience of clinical operation and the comfort of a patient;
the semi-enclosed single-jaw guide plate is made of transparent materials, so that a clinician can see the semi-enclosed single-jaw guide plate and operate soft tissues under the semi-enclosed single-jaw guide plate under direct vision while accurately positioning, and the risk of cortical bone incision is further reduced;
the second fixing position is in accordance with the gap between two adjacent teeth of a patient aiming at the common patient, so that the second fixing position is convenient to fix; when the patient wears the appliance, the shape of the second fixing position is matched with the bracket, so that the fixing and correcting patient can smoothly perform the cortical osteotomy during the treatment period;
the second fixing position is matched with the first fixing position, and the second fixing position can be respectively attached to the upper part and the lower part of the tooth and fix the oral cavity guide plate, so that the guide plate can be placed into the oral cavity from the buccal side surface or the labial surface of the tooth and is attached to the tooth surface and the gum;
compared with a guide plate sleeved from the occlusal surface of the tooth, the sleeved guide plate is easy to shake due to the tooth with a big head and a small heel, and the guide plate is difficult to be tightly attached to the gum, so that the position and the depth of an operation incision cannot be accurately controlled;
the combination of CBCT and 3D mouth scanning computer simulation is adopted, the combination of hard tissues and soft tissues of a tooth body is realized, the accurate position of a tooth root and the clearance between the tooth roots are determined through the CBCT, the accurate design and the positioning of the position and the depth of an operation incision are facilitated, the 3D mouth scanning is used for accurately positioning the position of a mucosa, a guide plate is tightly attached to the mucosa, no redundant gap caused by tissue undercut is generated, and the incision depth and direction positioning can be more accurate.
In a first aspect, as shown in fig. 1-2.
Example 1:
a minimally invasive cortical bone incising dental operation guide plate comprises a plurality of semi-enclosed single jaw guide plates 101 (two single jaw guide plates are arranged in figure 1, the single jaw guide plate on the left side in the figure only indicates a local part and indicates a splicing mode between the guide plates), the upper part of the semi-enclosed single jaw guide plate 101 covers the occlusion surface of a tooth 201 to form a first fixing part 102, the side part of the semi-enclosed single jaw guide plate 101 covers the buccal side surface or the labial surface (namely the outer side part) of the tooth 201 and the outer side part of a gum 203, so that the semi-enclosed single jaw guide plate 101 is tightly attached to soft tissues after being in place, the influence of oral cavity undercut is reduced, the side part of the semi-enclosed single jaw guide plate 101 is also provided with a second fixing part 103 and at least one operation window 104 arranged on the side part, the shape of the semi-enclosed single jaw guide plate 101 is attached to the buccal side surface or the labial surface (namely the outer side part) of the tooth 201 and the outer side part, the plurality of semi-enclosed single jaw guide plates 101 are spliced with each other to form the operation guide plate.
Example 2:
based on example 1. The upper jaw guide plate or the lower jaw guide plate is formed by splicing at least three semi-surrounding type single jaw guide plates 101.
Example 3:
in one or more embodiments, the upper jaw guide or the lower jaw guide is formed by splicing three semi-enclosed single jaw guides 101 (a first posterior tooth area guide 401, an anterior tooth area guide 402, and a second posterior tooth area guide 403) made of transparent materials, the first posterior tooth area guide and the second posterior tooth area guide are embedded in position from the buccal side direction of the teeth 201, and the anterior tooth area guide is embedded in position from the labial side direction of the teeth 201.
Example 4:
in one or more embodiments, the surfaces of the semi-enclosed single jaw guides 101 that are spliced together form a third fixing portion 105 that is formed by an engaging portion and can fix the longitudinal position between the semi-enclosed single jaw guides 101, so that the guides are engaged with each other and cannot be displaced up and down after being inserted into position from the buccal side (or labial) direction.
Example 5:
in one or more of the above embodiments, the shape (recess) of the second fixing portion 103 conforms to the (appliance) tab-like bracket 204 of the surface of the tooth 201 for use by a patient wearing the appliance.
Example 6:
in one or more of the above embodiments, the second anchor 103 is shaped (e.g., convex) to fit the contour of the gap formed between the plurality of teeth for use by a patient without the appliance.
A second aspect, as shown in fig. 3.
Example 7:
the utility model provides a wicresoft's cortex matter incises art dental surgery baffle, wherein, contain a plurality of half enclosed single jaw baffle 101, half enclosed single jaw baffle 101's upper portion is whole to cover tooth 201 bite and is personally submitted first fixed part 102, half enclosed single jaw baffle 101's lateral part covers tooth 201 buccal surface or labial surface and the outside of gum 203 for closely laminate between half enclosed single jaw baffle 101 takes one's place back and the soft tissue, reduce the influence of oral cavity undercut, half enclosed single jaw baffle 101's lateral part still is equipped with second fixed part 103 and at least one and opens the operation window 104 of locating the lateral part, half enclosed single jaw baffle 101's shape laminating tooth 201 is fixed in the oral cavity, a plurality of half enclosed single jaw baffle 101 splice each other and constitute the operation baffle.
The plurality of semi-enclosed single-jaw guide plates 101 form an upper jaw guide plate or a lower jaw guide plate, and the upper jaw guide plate or the lower jaw guide plate is formed by splicing at least three semi-enclosed single-jaw guide plates 101.
Wherein, the upper jaw baffle is by half enclosed type single jaw baffle 101 that three transparent material made: the first back tooth area guide plate 401, the front tooth area guide plate 402 and the second back tooth area guide plate 403 are spliced. The mandibular guide plate and the maxillary guide plate are arranged in the same or similar manner, and vice versa.
Wherein, the first posterior teeth area guide plate and the second posterior teeth area guide plate are positioned from the buccal side direction of the teeth 201, and the anterior teeth area guide plate is positioned from the labial surface direction of the teeth 201. Preferably, for greater ease of installation, the front dental area guide is positioned after the first and second back dental area guides are in place.
The surfaces of the semi-enclosed single-jaw guide plates 101, which are spliced with each other, form a third fixing part through a meshing part, and the third fixing part fixes the longitudinal position between the semi-enclosed single-jaw guide plates 101.
Wherein the shape (protrusion) of the second fixing portion 103 fits the groove of the contour of the gap formed between the plurality of teeth for use by a patient without the appliance.
Example 8
In one or more of the above embodiments, the shape (recess) of the second fixing portion 103 conforms to the (appliance) bracket 204 on the surface of the tooth 201 for use by a patient wearing an appliance.
Preferably as shown in fig. 5.
Example 9:
a minimally invasive cortical bone dissection dental surgery guide plate, comprising a plurality of semi-enclosed single jaw guide plates: the first fixing parts of the first rear tooth area guide plate 401 and the second rear tooth area guide plate 403 of the semi-enclosed single jaw guide plate partially cover the occlusal surface of the teeth of the rear tooth area, the first fixing parts of the front tooth area guide plate 402 completely cover the occlusal surface of the teeth of the front tooth area, and the three guide plates are spliced with each other to form the operation guide plate. The 3D modeled projected shape of the second fixed portion of the guide plate conforms to the recess of the gap contour formed between the plurality of teeth for use by a patient without an appliance.
In a third aspect, a method for manufacturing a minimally invasive cortical bone incisure dental surgery guide plate comprises the following steps:
step 1: acquiring oral cavity data of a patient by using 3D mouth scanning, and establishing a three-dimensional oral cavity model of the patient according to the oral cavity data, wherein the three-dimensional oral cavity model comprises the arrangement of teeth 201, the shape of a dental crown and soft tissue data of gingiva 203 of the patient;
step 2: acquiring tooth 201 data of the patient's tooth roots 202, alveolar bone and the spacing between the roots 202 using CBCT (cone beam CT);
and step 3: performing three-dimensional reconstruction by using the three-dimensional oral cavity model scanned by the 3D mouth to coincide with the tooth data collected by CBCT (cone beam CT), and obtaining a three-dimensional reconstruction model with accurate soft and hard tissues in the mouth of the patient;
and 4, step 4: drawing the range of the surgical guide plate according to the positioning direction of the surgical guide plate, wherein the positioning direction is that the buccal side or the lingual side is positioned horizontally;
and 5: according to the position, the direction and the depth of the incision of the cortical opening, the surgical incision is arranged between the tooth roots 202 through the position of soft and hard tissues in the oral cavity in the three-dimensional reconstruction model, the direction is parallel to the tooth roots 202 as much as possible, and the depth of the surgical incision is about 3 mm;
step 6: opening an operating window 104 of the ultrasonic osteotome on the surgical guide;
and 7: the preliminarily designed guide plate is split into three split guide plates which are mutually meshed along the inter-tooth direction in model software, and rectangular sawteeth are adopted as meshing splicing surfaces (see fig. 1). After the surgical guide plate is designed, STL data of each split guide plate is derived;
preparing a surgical guide plate by using a molding device; preferably, a 3D laser printer can be selected for printing the resin surgical guide plate.
Preferably, the method further comprises the step 9: the prepared operation guide plate is cut into at least two parts along the interdental direction, and the splicing surfaces of the split guide plates are mutually meshed. Preferably, the cutting is divided into three parts, namely a first back tooth area guide 401, a front tooth area guide 402 and a second back tooth area guide 403, and the meshing section can be triangular saw teeth similar to a gear, rectangular saw teeth or irregular concave-convex shapes capable of meshing with each other.
Preferably, at step 7, at least two separate guide plates engaging with each other in the direction between the teeth can be independently formed and used together. Preferably, the tooth-shaped guide plate is formed by splicing three split guide plates, namely a first back tooth area guide plate 401, a front tooth area guide plate 402 and a second back tooth area guide plate 403, and the meshing splicing surface can be triangular saw teeth similar to a gear, rectangular saw teeth or irregular concave-convex shapes capable of meshing with each other.
The manufacturing method of the dental operation guide plate for minimally invasive cortical bone incision is characterized in that,
the size of the surgical window 104 in the step 6 needs to be matched with the size of a cutter head of the ultrasonic osteotome, wherein the width and the depth of the surgical window 104 are respectively 2mm and 4mm when the cutter head is 9mm, the depth of the incision is 3mm and the gingiva 203 is 2 mm;
3D former is 3D laser resin printer in step 8, and the operation baffle is photosensitive resin operation baffle, and transparent photosensitive resin operation baffle is after accomplishing the baffle design, and 3D laser printing accomplishes photosensitive resin operation baffle preparation, and transparent material is favorable to clinician at visual supplementary accurate positioning down when carrying out the cortex cutting art, reduces the risk of cortex cutting art.
The manufacturing method of the dental operation guide plate for minimally invasive cortical bone incision is characterized in that,
in the step 7, the operation guide plates are spliced by at least two split guide plates which are mutually meshed along the interdental direction;
the surgical window 104 in step 6 needs to be matched with the size of the cutter head of the ultrasonic osteotome;
in the step 8, the 3D forming equipment is a 3D laser resin printer, and the operation guide plate is a photosensitive resin operation guide plate.
In conclusion, according to the dental operation guide plate for minimally invasive cortical bone dissection and the manufacturing method thereof, the operation guide plate is formed by adopting a plurality of semi-surrounding type single jaw guide plates which are positioned on the buccal side or the lingual side and fixed on the combined surface, so that the positioning convenience of the semi-surrounding type single jaw guide plate is increased, the design of partial positioning is realized, meanwhile, the partial positioning is favorable for the convenience of a clinician for performing the cortical bone dissection, the undercut of the operation guide plate after the positioning is reduced as much as possible, the deep positioning is more favorable, the precision of the periodontal minimally invasive cortical bone dissection is effectively increased, and the convenience of clinical operation and the comfort of a patient are favorable;
the semi-enclosed single-jaw guide plate is made of transparent materials, so that a clinician can see the semi-enclosed single-jaw guide plate and operate soft tissues under the semi-enclosed single-jaw guide plate under direct vision while accurately positioning, and the risk of cortical bone incision is further reduced;
the second fixing position is in accordance with the gap between two adjacent teeth of a patient aiming at the common patient, so that the second fixing position is convenient to fix; when the patient wears the appliance, the shape of the second fixing position is matched with the bracket, so that the fixing and correcting patient can smoothly perform the cortical osteotomy during the treatment period;
the second fixing position is matched with the first fixing position, and the second fixing position can be respectively attached to the upper part and the lower part of the tooth and fix the oral cavity guide plate, so that the guide plate can be placed into the oral cavity from the buccal side surface or the labial surface of the tooth and is attached to the tooth surface and the gum;
compared with a guide plate sleeved from the occlusal surface of the tooth, the sleeved guide plate is easy to shake due to the tooth with a big head and a small heel, and the guide plate is difficult to be tightly attached to the gum, so that the position and the depth of an operation incision cannot be accurately controlled;
the combination of CBCT and 3D mouth scanning computer simulation is adopted, the combination of hard tissues and soft tissues of a tooth body is realized, the accurate position of a tooth root and the clearance between the tooth roots are determined through the CBCT, the accurate design and the positioning of the position and the depth of an operation incision are facilitated, the 3D mouth scanning is used for accurately positioning the position of a mucosa, a guide plate is tightly attached to the mucosa, no redundant gap caused by tissue undercut is generated, and the incision depth and direction positioning can be more accurate.
Specific embodiments of the invention have been described above. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; various changes or modifications may be made by one skilled in the art within the scope of the claims without departing from the spirit of the invention, and without affecting the spirit of the invention.
Claims (10)
1. The utility model provides a wicresoft's cortex matter incisional surgery dental surgery baffle, its characterized in that contains a plurality of half enclosed single jaw baffle, the upper portion of half enclosed single jaw baffle covers or partly covers the tooth interlock and personally submits first fixed part, the lateral part of half enclosed single jaw baffle covers tooth buccal surface or labial surface and gum lateral surface, the lateral part of half enclosed single jaw baffle still is equipped with the second fixed part and at least one sets up in the operation window of lateral part, the shape laminating tooth buccal surface or labial surface and the gum lateral surface of half enclosed single jaw baffle are fixed in the oral cavity, a plurality of half enclosed single jaw baffles splice each other and constitute the operation baffle.
2. The minimally invasive cortical bone dissection dental surgical guide of claim 1, wherein the plurality of semi-enclosed single jaw guides constitute an upper jaw guide or a lower jaw guide, and the upper jaw guide or the lower jaw guide is formed by splicing at least three semi-enclosed single jaw guides.
3. The minimally invasive cortical bone dissection dental surgical guide of claim 2, wherein the upper jaw guide or the lower jaw guide is made of three semi-enclosed single jaw guides made of transparent materials: the first back tooth area guide plate, the front tooth area guide plate and the second back tooth area guide plate are spliced.
4. The minimally invasive cortical bone dissection dental surgical guide of claim 3, wherein said first posterior dental area guide and said second posterior dental area guide are positioned from a buccal side of a tooth and said anterior dental area guide is positioned from a labial side of a tooth.
5. The minimally invasive cortical bone dissection dental surgical guide of any one of claims 1-4, wherein the splicing surfaces of the semi-enclosed single jaw guides are engaged with each other to form a third fixing portion, and the third fixing portion fixes the longitudinal position between the semi-enclosed single jaw guides.
6. The minimally invasive cortical bone dissection dental surgical guide of claim 5, wherein the second fixing portion is shaped to conform to a bracket on a tooth surface.
7. The minimally invasive cortical bone dissection dental surgical guide of claim 5, wherein the second fixing portion is shaped to fit in the slot recess between two adjacent teeth.
8. The manufacturing method of the minimally invasive cortical bone incision dental operation guide plate is characterized by comprising the following steps:
step 1: the method comprises the steps of obtaining oral cavity data of a patient by using 3D mouth scanning, and establishing a three-dimensional oral cavity model of the patient according to the oral cavity data, wherein the three-dimensional oral cavity model comprises tooth arrangement, crown shape and gum soft tissue data of the patient;
step 2: collecting tooth data of the tooth roots, alveolar bones and the intervals among the tooth roots of the patient by using CBCT;
and step 3: the three-dimensional oral cavity model scanned by the 3D mouth is superposed with the tooth data collected by the CBCT to carry out three-dimensional reconstruction, and a three-dimensional reconstruction model with accurate soft and hard tissues in the mouth of the patient is obtained;
and 4, step 4: drawing the range of the surgical guide plate according to the positioning direction of the surgical guide plate, wherein the positioning direction is that the buccal side or the lingual side is positioned horizontally;
and 5: according to the position, the direction and the depth of the incision of the cortical opening, the position of soft and hard tissues in an oral cavity in the three-dimensional reconstruction model is used for arranging the operation incision between the tooth roots, and the direction is parallel to the tooth roots as much as possible;
step 6: opening an operation window of the ultrasonic osteotome on the operation guide plate;
and 7: after the surgical guide plate is designed, exporting forming data;
and 8: the surgical guide was prepared using 3D molding equipment.
9. The method of claim 8, further comprising the step of 9: cutting the operation guide plate into at least two parts along the interdental direction, wherein the splicing surfaces of the split guide plates are mutually meshed;
the size of the operation window in the step 6 needs to be matched with the size of a cutter head of the ultrasonic osteotome;
in the step 8, the 3D forming equipment is a 3D laser resin printer, and the operation guide plate is a photosensitive resin operation guide plate.
10. The method according to claim 8, wherein the surgical guide in step 7 is assembled by at least two split guides engaged with each other in the interdental direction;
the size of the operation window in the step 6 needs to be matched with the size of a cutter head of the ultrasonic osteotome;
in the step 8, the 3D forming equipment is a 3D laser resin printer, and the operation guide plate is a photosensitive resin operation guide plate.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813072A (en) * | 2021-09-15 | 2021-12-21 | 孙江 | 3D printed periodontal auxiliary accelerated osteogenesis orthodontic treatment surgical guide plate and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113813072A (en) * | 2021-09-15 | 2021-12-21 | 孙江 | 3D printed periodontal auxiliary accelerated osteogenesis orthodontic treatment surgical guide plate and preparation method thereof |
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