CN210749569U - Individual bone windowing guide plate for buried tooth based on three-dimensional printing technology - Google Patents

Abstract

The utility model relates to the field of medical technology, specifically be an embedding tooth individuation bone guide of windowing based on three-dimensional printing technique, this embedding tooth individuation bone guide of windowing based on three-dimensional printing technique adopts three-dimensional printing technique, based on titanium alloy material, according to best traction design scheme, prints out the bone positioning guide of windowing based on the tooth supports formula. The guide plate component is positioned by the teeth around the embedded teeth, is stable and does not loosen, and the positioning through hole of the guide ring part protruding from the other end is tightly attached to the bone surface to circle the part to be windowed; the guide plate component is made of titanium alloy materials, compared with the traditional stainless steel, the tissue compatibility is obviously superior, and the inflammatory reaction of soft and hard tissues is not easy to occur; compared with a resin material guide plate, the titanium alloy guide plate is lighter and thinner in volume and smaller in thickness, and is more suitable for narrow space operation in a molar region of posterior teeth; the structure of integral type is more firm, is difficult for appearing the phenomenon of rupture. And determining the optimal bone windowing position according to the optimal traction and extraction path of the impacted teeth.

Description

Individual bone windowing guide plate for buried tooth based on three-dimensional printing technology

Technical Field

The utility model relates to the field of medical technology, specifically be an individuation bone windowing baffle of tooth that buries prostrate based on three-dimensional printing technique.

Background

An embedded tooth is a tooth that has passed the eruption stage but failed to fully erupt. The occlusion is a very common oral disease in clinic, and is easy to cause a series of complications, such as recurrent pericoronitis, caries or inclination of adjacent teeth, abnormal recurrence after orthodontic treatment, food impaction, oral odor and the like. The common embedded tooth can be extracted by a surgical method, but the embedded tooth which is closely related to important tissue structures such as inferior alveolar neurovascular bundle, maxillary sinus cavity, nasopalatine nerve and the like has high risk of direct extraction, easily damages the surrounding important structures or has great postoperative wound for tooth extraction. Surgical fenestration is adopted, part of the impacted teeth are exposed, and a method combining orthodontic traction is one of the best treatment methods. In the surgical exposure process, a blind method is often adopted for windowing, and the defects of inaccurate windowing site, inaccurate bone removal amount, large wound, high failure rate and the like exist.

An embedded tooth often has only a small amount of dental tissue exposed to the mouth or is completely embedded in bone and cannot erupt. In order to pull out the embedded tooth quickly, effectively and safely, the bone windowing operation is often required to be completed according to the pulling direction, and the tooth can be pulled out more effectively under the action of correct pulling force.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem lie in overcoming prior art's defect, provide an embedding tooth individuation bone conduction of windowing baffle based on three-dimensional printing technique.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an embedding tooth individuation bone conduction of windowing based on three-dimensional printing technique, includes the baffle subassembly, the baffle subassembly includes position fixing end and lead ring portion, lead ring portion sets up the one side at the position fixing end, lead ring portion includes setting element and positioning hole, one side that the setting element is close to the position fixing end is fixed with the corresponding lateral wall surface connection of position fixing end, positioning hole sets up the inside at the setting element, the corresponding alveolus portion of a plurality of faces that enclose tooth all around with human embedding periodontal is seted up to the bottom surface of position fixing end, alveolus portion joint is fixed in the outside of human embedding periodontal encloses around the flank of tooth, and wherein the inner wall of alveolus portion and the human embedding periodontal enclose around the laminating of flank of tooth.

Preferably, the locating element and the position-fixing end are of an integrally formed structure, the position-fixing end is a semi-circular ring-shaped element consistent with the dental arch shape, arc-shaped chamfers are arranged at one end, away from the locating element, of the position-fixing end and one end, away from the position-fixing end, of the locating element, the position-fixing end and the locating element are formed by three-dimensional printing technology, the position-fixing end and the locating element are made of titanium alloy materials, the thickness of the locating element is 1mm, and the cross section of the position-fixing end is in an inverted truncated cone shape.

Preferably, the number of the tooth groove parts is at least two, and the bottom surfaces of the position fixing ends are sequentially linearly arranged in an arc shape.

Compared with the prior art, the beneficial effects of the utility model are that: the individual bone windowing guide plate for the buried tooth based on the three-dimensional printing technology is characterized in that the bone windowing positioning guide plate based on a tooth support type is printed by adopting the three-dimensional printing technology, based on a titanium alloy material and according to an optimal traction design scheme. The guide plate component is positioned by the teeth around the embedded teeth, is stable and does not loosen, and the positioning through hole of the guide ring part protruding from the other end is tightly attached to the bone surface to circle the part to be windowed; the guide plate component is made of titanium alloy materials, compared with the traditional stainless steel, the tissue compatibility is obviously superior, and the inflammatory reaction of soft and hard tissues is not easy to occur; compared with a resin material guide plate, the titanium alloy guide plate is lighter and thinner in volume and smaller in thickness, and is more suitable for narrow space operation in a molar region of posterior teeth; the structure of integral type is more firm, is difficult for appearing the phenomenon of rupture. The preoperative surgical scheme is designed, the optimal bonding position and the traction direction of the traction accessory are designed according to the optimal traction and extraction path of the impacted teeth, the optimal bone windowing position is determined, and the failure rate and the falling rate of the traction device are effectively reduced.

Drawings

FIG. 1 is a schematic view of the bottom of the position-retaining end of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is a schematic structural diagram of the present invention.

In the figure: the guide plate component 1, the position fixing end 2, the guide ring part 3, the positioning part 4, the positioning through hole 5 and the tooth groove part 6.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides an embedding tooth individuation bone windowing baffle based on three-dimensional printing technique, includes baffle subassembly 1, baffle subassembly 1 includes position fixing end 2 and guide ring portion 3, guide ring portion 3 sets up in one side of position fixing end 2, guide ring portion 3 includes setting element 4 and positioning hole 5, one side that setting element 4 is close to position fixing end 2 is fixed with the lateral wall surface connection that position fixing end 2 corresponds, positioning hole 5 sets up in the inside of setting element 4, a plurality of tooth groove portions 6 corresponding with the face of the anterior mandibular dentition of human embedding tooth are seted up to the bottom surface of position fixing end 2, the outside at the face of the anterior mandibular dentition of human embedding tooth is fixed to 6 joints of tooth groove portions, and wherein the inner wall of tooth groove portions 6 laminates with the anterior mandibular dentition face of human embedding tooth.

As a technical optimization scheme of the utility model, setting element 4 is the integrated into one piece structure with position fixing end 2, position fixing end 2 is the semicircular ring shape spare unanimous with the dental arch form, and wherein position fixing end 2 keeps away from the one end of setting element 4 and the one end that position fixing end 2 was kept away from to setting element 4 all is provided with convex chamfer, position fixing end 2 and setting element 4 are three-dimensional printing technique and constitute, position fixing end 2 and setting element 4 are titanium alloy material and constitute, the thickness of setting element 4 is 1mm, the cross-section of position fixing end 2 is inverted frustum shape.

As a technical optimization scheme of the utility model, the number of the tooth groove parts 6 is at least two groups, and the bottom surface of the position fixing end 2 is in an arc-shaped sequential linear arrangement.

The working principle is as follows: when people use the three-dimensional printing technology-based individualized bone windowing guide plate for the embedded tooth, firstly, a patient shoots a CT with the thickness of 0.625mm and the format of DICOMS, CT data is imported into design software Mimics to carry out three-dimensional reconstruction, important anatomical structures are respectively depicted, after injury is avoided, a surgeon and an orthodontist jointly carry out optimal traction scheme design, and operation planning is exported to be an STL format file.

Then, in the software of Geomagic studio 2013, a guide plate is designed according to the optimal traction direction, wherein the position-fixing end 2 is tightly attached and contacted with the closed surface of the tooth, and is clamped and fixed on the surface of the tooth through a tooth groove part 6 arranged on the bottom surface of the position-fixing end 2, so that the guide plate component 1 is stably positioned; wherein the guide ring part 3 is closely attached to the jaw opening part. A mode that a positioning through hole 5 is formed in the surface of a positioning piece 4 to form a guide ring part 3 is adopted, a position to be windowed is encircled through the positioning through hole 5, the shape of the positioning through hole 5 serving as a guide channel is completely consistent with the shape of an osteotomy to be windowed, and the thickness of the whole positioning piece 4 is made of a titanium alloy material with the thickness of 1 mm.

And finally, three-dimensional printing and finishing and polishing are realized. The preparation method comprises the steps of adopting an electron beam melting forming method, utilizing a three-dimensional printer of a medical Aracam Q10 titanium alloy, wherein the powder material is Ti-6A1-4V which is medical noble, completing three-dimensional printing, cooling, blowing off redundant powder by using an air gun, polishing, grinding, fine processing and the like, then performing mechanical measurement, sterilizing, finally sterilizing at high temperature and high pressure, performing biological detection on the implant, and then performing sterilization and double-layer packaging.

Thus, an accurate bone fenestration guide is obtained, and the retaining end 2 of the guide assembly 1 is retained on the surface of the mandibular dentition in front of the embedded teeth, forming a stable, teeth-supported guide assembly 1 with the retaining end 2. The locating element of this baffle subassembly 1's guide ring portion 3 can with correspond the accurate laminating of bone surface at the position of drawing a window of jaw, the positioning hole 5 and the jaw contact position of guide ring portion 3 are the bone scope of drawing a window promptly. The surgeon can cut the bone fenestration site along the positioning through hole by a gun drill, a ball drill, an ultrasonic osteotome or the like, and the bone fenestration site can be cut out accurately.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (3)

1. The utility model provides an individual bone windowing baffle of tooth that buries based on three-dimensional printing technique, includes baffle subassembly (1), its characterized in that: guide plate subassembly (1) is including position fixing end (2) and lead ring portion (3), lead ring portion (3) set up the one side in position fixing end (2), lead ring portion (3) including setting element (4) and positioning hole (5), one side that setting element (4) are close to position fixing end (2) is fixed with the corresponding lateral wall surface connection of position fixing end (2), positioning hole (5) are seted up in the inside of setting element (4), the bottom surface of position fixing end (2) is seted up a plurality of and is enclosed tooth's face corresponding slot part (6) with human embedding periodontal, slot part (6) joint is fixed in the outside of human embedding periodontal surrounding tooth flank, wherein the inner wall and the human embedding periodontal surrounding tooth flank laminating of tooth flank of slot part (6).

2. The three-dimensional printing technology-based individualized bone windowing guide plate for the embedded tooth according to claim 1, wherein: setting element (4) and position fixing end (2) are the integrated into one piece structure, position fixing end (2) are the semicircle ring shape spare unanimous with the dental arch form, and wherein position fixing end (2) are kept away from the one end of setting element (4) and are kept away from the one end of position fixing end (2) and all are provided with convex chamfer, position fixing end (2) and setting element (4) are three-dimensional printing technique and constitute, position fixing end (2) and setting element (4) are titanium alloy material and constitute, the thickness of setting element (4) is 1mm, the cross-section of position fixing end (2) is radius platform shape.

3. The individualized bone windowing guide plate for the embedded tooth based on the three-dimensional printing technology as claimed in claim 1 or 2, wherein: the number of the tooth socket parts (6) is at least two, and the bottom surfaces of the position fixing ends (2) are arranged linearly in an arc shape in sequence.

Images