CN215228600U

CN215228600U - 3D printing double-guide-plate kit for guiding dental crown lengthening operation

Info

Publication number: CN215228600U
Application number: CN202121882225.6U
Authority: CN
Inventors: 孙江
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-12
Filing date: 2021-08-12
Publication date: 2021-12-21
Anticipated expiration: 2031-08-12

Abstract

The utility model provides a 3D who guides dental crown extension operation prints two baffle external member, including gum excision baffle and alveolar bone excision baffle. The guide plate suite is designed by combining the oral scan of the patient and the CT data and is matched with the personalized anatomical structure of the patient. The gingival resection guide plate is also combined with a digital smile design technology to guide the operation to obtain a symmetrical and consistent gingival margin shape which accords with the aesthetic restoration principle of the oral cavity. The alveolar bone resection guide plate can guide a doctor to accurately resect the alveolar bone without gum reference after the valve is turned over, and can effectively prevent the tooth root from being damaged in the operation. Because the operation area between two adjacent teeth is narrow, the bone removal amount and the shape after bone removal are difficult to control, the alveolar bone resection guide plate is specially provided with an interproximal bone removal point, the resection of the interproximal alveolar bone is accurately guided, the operation difficulty is reduced, and the occurrence of postoperative interproximal black triangle is effectively prevented. The guide plate kit is flexible in design and unique in universality, and can guide the accurate implementation of all dental crown lengthening operations.

Description

3D printing double-guide-plate kit for guiding dental crown lengthening operation

Technical Field

The utility model belongs to the technical field of dentistry therapeutic equipment technique and specifically relates to a 3D who guides dental crown extension art prints two baffle external members.

Background

With the increasing requirements of people on oral aesthetics, problems of gingival hyperplasia, insufficient passive eruption of teeth, gingival exposure smile, invasion of biological width by poor prosthesis, formation of residual crown and residual root due to caries or tooth folding reaching subgingival have been paid extensive attention by stomatologists. The above problems can be solved clinically by a crown lengthening operation. Crown lengthening surgery (Crown lengthening surgery) is a surgery method to reduce the height of the gingival margin, reduce the height of the alveolar ridge through bone resection and bone trimming, expose the healthy tooth structure, prolong the clinical Crown, recover the biological width, and prevent serious oral health problems such as gingival swelling and periodontal pocket formation caused by untreated direct repair, so that the Crown lengthening surgery is beneficial to tooth health recovery and can greatly improve the aesthetic repair effect after the surgery.

Among the present dental crown extension art baffle, including tooth laminating portion and alveolar bone excision location portion, be equipped with the blank region between tooth laminating portion and the alveolar bone excision location portion, tooth laminating portion is connected as an organic wholely with alveolar bone excision location portion.

When the guide plate is used for guiding the dental crown to prolong the operation, the cutting positions of the gum and the alveolar bone are only positioned, the shapes of the gum and the alveolar bone after cutting are not accurately designed, and further the accurate positioning of the alveolar bone removing amount and the shapes of the alveolar bone after removing between two adjacent teeth is not embodied. If the alveolar bone in the area is cut too much, clinical dental crowns are exposed excessively, the neck of the tooth is sensitive, the proportion of crown roots is not coordinated, periodontal support tissues are weakened, and the risk of failure of the prosthesis is increased. However, if too little alveolar bone is removed, the prosthesis easily invades the biological width, and the problems of red and swollen gums, hyperplasia, alveolar bone absorption, periodontal pocket formation and the like seriously damaging the oral health occur.

Moreover, the gingival margin form is not designed by combining the digital smiling technology in the prior guide plate technology, so that the satisfactory postoperative effect of a patient cannot be obtained. In addition, because different patients have individualized anatomical differences, when a plurality of teeth need crown lengthening operation and the heights of the gingiva and the alveolar bone of the teeth have large differences, the existing guide plate technology is difficult to connect the gingiva and the alveolar bone resection positioning part into a whole, the precision of resection positions, resection amounts and postoperative edge forms cannot be ensured, and the flexibility of guiding operation is lacked.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect of prior art, the utility model provides a nimble gum excision of guiding the extension art of dental crown, the 3D of alveolar bone excision prints two baffle external members to make the extension art of dental crown under this baffle external member participates in, the operation is efficient, and the postoperative is effectual.

Therefore, the utility model provides a following technical scheme:

the utility model provides a guide 3D of dental crown extension art to print two baffle external member, include: a matched gingiva resection guide plate (1) and an alveolar bone resection guide plate (2);

wherein the gum resection guide plate (1) comprises a gum edge (3), a first cutting end (7), a first labial side wall (8), a first palatal side wall (9) and a first positioning hole (5); the gum margin (3) is fixedly connected with the first labial side wall (8), the first labial side wall (8) is fixedly connected with the first cut end (7), the first palatal side wall (9) is fixedly connected with the first cut end (7), and a containing groove for containing dentition is formed among the first labial side wall (8), the first palatal side wall (9) and the first cut end (7); the gingival margin (3) is used for guiding the gingival resection position, the resection amount and the gingival margin shape after resection in the operation; the first positioning hole (5) is arranged at the cheek tip of the anterior molar;

the alveolar bone resection guide plate (2) comprises an alveolar bone edge (4), a second cutting end (11), a second labial side wall (12), a second palatal side wall (13), a second positioning hole (10) and an interproximal bone removal point (6); the alveolar bone edge (4) is fixedly connected with the second labial side wall (12), the second labial side wall (12) is fixedly connected with the second cutting end (11), the second palatal side wall (13) is fixedly connected with the second cutting end (11), and an accommodating groove for accommodating dentition is formed among the second labial side wall (12), the second palatal side wall (13) and the second cutting end (11); the second positioning hole (10) is arranged at the cheek tip of the anterior molar; the alveolar bone edge (4) is used for guiding the alveolar bone resection position, resection amount and bone edge shape after resection in the operation; the interproximal bone removal point (6) is used for guiding the alveolar bone resection height and bone edge morphology between two adjacent teeth;

the first cutting end (7), the first lip side wall (8), the first palate side wall (9) and the first positioning hole (5) are the same as the second cutting end (11), the second lip side wall (12), the second palate side wall (13) and the second positioning hole (10) in size respectively.

Further, the alveolar bone resection guide (2) is 3mm higher than the gingival resection guide (1);

further, the first labial side wall (8), the first palatal side wall (9) and the first cut end (7) are arc-shaped structures which are matched with the dentition shape;

the second labial side wall (12), the second palatal side wall (13) and the second incising end (11) are arc-shaped structures which are matched with the dentition shape.

Further, the first positioning hole (5) is circular and has a radius of 3 mm;

the second positioning hole (10) is circular, and the radius of the second positioning hole is 3 mm.

Further, the thickness of the first labial side wall (8), the first palatal side wall (9) and the first incision end (7) is 1mm, and the thickness of the first incision end (7) in the posterior tooth area is increased by 3 mm;

the thickness of the second labial side wall (12), the second palatal side wall (13) and the second cutting end (11) is 1mm, and the thickness of the second cutting end (11) in the posterior tooth area is increased by 3 mm.

Further, the gum resection guide plate (1) and the alveolar bone resection guide plate (2) are 3D printing guide plates.

The utility model discloses an advantage and positive effect:

(1) the double-guide-plate kit in the utility model comprises a gum resection guide plate and an alveolar bone resection guide plate, which can accurately guide gum resection and alveolar bone resection to ensure that the operation is accurate and minimally invasive, the guide-plate kit combines CT data and oral scan data to reconstruct jaw bone model to measure alveolar bone removal amount, accurately designs alveolar bone edge morphology to prevent the alveolar bone resection from excessively causing exposure of a root bifurcation area of a molar area and crown root ratio imbalance to influence the health and the repair effect of teeth, researches show that a black triangular area formed by retraction of a gingival papilla is related to an adjacent contact point when the distance between the black triangular area and the adjacent contact point and the alveolar ridge height is more than 5mm, therefore, the alveolar bone resection guide plate specially designs an adjacent bone removal point, has great clinical significance for accurately guiding the interproximal alveolar bone removal amount and the bone edge morphology, and can effectively prevent postoperative prosthesis from invading biological width caused by insufficient bone removal amount, further causing serious harm to oral health such as gingival red and swollen hyperplasia, alveolar bone absorption, periodontal pocket formation and the like.

(2) The utility model provides a gum excision baffle combines digital smiling technique, designs the marginal form of gum that accords with oral cavity aesthetic repair principle, and accurate gum excision of guiding and gum are maintained. And can communicate the marginal form of the gum that is designed with the patient before the art, refer to the marginal form that the patient's opinion designed the gum and cut the baffle to improve patient's satisfaction, promote the aesthetic effect of postoperative.

(3) The alveolar bone resection guide plate of the utility model is closely attached to teeth and alveolar bones, guides accurate bone removal and forms good alveolar bone edge shapes. The three-dimensional model is generated by using the mouth scan and the cone beam CT data, and the alveolar bone information is analyzed, so that important anatomical structures such as tooth roots and the like are avoided when the alveolar bone is cut in the operation, and the operation safety is improved.

(4) The utility model provides a two baffle box spares and thickens cutting the end area to design and to the corresponding occlusal surface of jaw tooth, make the operation in-process, the interlock of upper and lower dentition is cutting the end, and the patient needn't open one's mouth by oneself in the operation process, with comfort level in the improvement art, alleviate patient's misery.

(5) The utility model provides a two baffle suit are provided with the locating hole on preceding molar cheek point, not only provide certain maintenance effect, and whether the inspection baffle takes one's place still can prevent in the art baffle removal, have increased operation efficiency, have improved the operation security.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

FIG. 1 is a schematic structural view of a dual guide plate assembly according to an embodiment of the present invention;

FIG. 2 is a schematic view of a gum resection guide in an embodiment of the present invention;

FIG. 3 is a side view of a gum resecting guide in an embodiment of the invention;

FIG. 4 is a bottom view of the gum resecting guide in an embodiment of the present invention;

FIG. 5 is a cross-sectional view of a gum resecting guide in an embodiment of the invention;

FIG. 6 is a schematic view of an alveolar bone resection guide according to an embodiment of the present invention;

FIG. 7 is a side view of an alveolar bone resection guide according to an embodiment of the present invention;

FIG. 8 is a bottom view of an alveolar bone cutting guide according to an embodiment of the present invention;

FIG. 9 is a cross-sectional view of an alveolar bone resection guide according to an embodiment of the present invention;

fig. 10 is a schematic view of another structure of a double guide plate set according to an embodiment of the present invention.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below 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 efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

As shown in fig. 1, an embodiment of the present invention provides a 3D printing dual guide kit for guiding a crown lengthening surgery, including: a matched gingiva resection guide plate 1 and an alveolar bone resection guide plate 2; the gum resection guide plate 1 and the alveolar bone resection guide plate 2 are 3D printing guide plates; the alveolar bone cutting guide 2 is 3mm higher than the gingival cutting guide 1 as shown in fig. 10.

As shown in figures 2-5, the gum resecting guide 1 comprises a gum margin 3, a first cutting end 7, a first labial sidewall 8, a first palatal sidewall 9 and a first positioning hole 5; the gum edge 3 is fixedly connected with a first lip side wall 8, the first lip side wall 8 is fixedly connected with a first cut end 7, a first palate side wall 9 is fixedly connected with the first cut end 7, and an accommodating groove for accommodating dentition is formed among the first lip side wall 8, the first palate side wall 9 and the first cut end 7; the first labial side wall 8, the first palatal side wall 9 and the first cut end 7 are arc-shaped structures which are inosculated with the dentition shape; the thickness of the first labial side wall 8, the first palatal side wall 9 and the first cut end 7 is 1mm, and the thickness of the first cut end 7 in the posterior tooth area is increased by 3 mm; the first positioning hole 5 is arranged at the cheek tip of the front molar, is round in shape and has a radius of 3 mm; the gingival margin 3 is used for guiding the gingival resection position, the resection amount and the gingival margin shape after the resection;

referring to fig. 6-9, the alveolar bone resection guide 2 comprises an alveolar bone margin 4, a second cutting end 11, a second labial sidewall 12, a second palatal sidewall 13, a second positioning hole 10, and an interproximal bone removal site 6; the alveolar bone edge 4 is fixedly connected with a second labial side wall 12, the second labial side wall 12 is fixedly connected with a second cutting end 11, a second palatal side wall 13 is fixedly connected with the second cutting end 11, and an accommodating groove for accommodating dentition is formed among the second labial side wall 12, the second palatal side wall 13 and the second cutting end 11; the second labial wall 12, the second palatal wall 13 and the second incising end 11 are arc-shaped structures which are inosculated with the dentition shape; the thickness of the second labial side wall 12, the second palatal side wall 13 and the second cutting end 11 is 1mm, and the thickness of the second cutting end 11 in the posterior teeth area is increased by 3 mm; the second positioning hole 10 is also arranged at the cheek tip of the front molar, is round and has the radius of 3 mm; the alveolar bone edge 4 is used for guiding the alveolar bone resection position, resection amount and bone edge shape after resection in the operation; the interproximal bone removal site 6 is used to guide the alveolar bone resection height and bone margin morphology between two adjacent teeth.

The first cut end 7, the first labial sidewall 8, the first palatal sidewall 9 and the first positioning hole 5 are respectively the same as the second cut end 11, the second labial sidewall 12, the second palatal sidewall 13 and the second positioning hole 10 in size.

In the above embodiment, the alveolar bone resection guide plate in the guide plate kit can indicate the bone tissue removal amount by accurately positioning the alveolar bone removal position, so as to accurately form the bilateral continuous and consistent alveolar bone edge shape, and particularly, the interproximal bone removal points are set. Meanwhile, the anatomical position of the adjacent region is narrow, the arrangement of the adjacent bone removing points can effectively reduce the operation difficulty, and the operation efficiency is greatly improved. This 3D prints two baffle external member and digital smile technique and combines together, designs out the gum edge form that accords with oral aesthetic restoration principle, and can communicate designed gum edge form and patient before the art, refers to the patient suggestion, and then improves the satisfaction of patient to later stage restoration effect. The dental crown lengthening operation with the participation of the guide plate kit realizes that the height of the alveolar bone is accurately reduced under the condition of no reference of the gum after the gum is turned over in the operation, and a good alveolar bone edge form is formed, thereby achieving the purpose of recovering the biological width.

In addition, this baffle external member design is more nimble, adopts the two baffle design schemes of guiding gum excision, alveolar bone excision, has more the universality, not only can guide simple dental crown extension operation, also can guide when a plurality of teeth need carry out the crown extension art and the gum of these teeth and alveolar bone height have great difference, and the design of two baffles has reduced the degree of difficulty of low operation, has improved the security of operation, makes the operation change and obtains good aesthetic effect. The utility model provides a two baffle box spares and thickens cutting the end area to design and to the corresponding occlusal surface of jaw tooth, make the operation in-process, the interlock of upper and lower dentition is cutting the end, and the patient needn't open one's mouth by oneself in the operation process, with comfort level in the improvement art, alleviate patient's misery. The double-guide-plate sleeve is provided with the positioning hole on the premolar cheek tip, and helps to check whether the guide plate is in place or not while the retention effect is provided.

The 3D printing double-guide plate kit for guiding the crown lengthening operation in the above embodiment may be manufactured according to the following method, which mainly includes the following steps:

step 1: converting cone beam CT data shot by a patient into a DICOM format, and adjusting to a jaw threshold value to reconstruct a jaw model;

step 2: scanning the mouth of a patient by using a 3Shape intraoral scanner to obtain oral scanning data;

and step 3: the cone beam CT data and the mouth scanning data are imported into MIMICS 17.0 software for accurate matching, and a jaw CT model with high-precision three-dimensional dentition and alveolar bone data fused is obtained;

and 4, step 4: designing a gum resection guide plate by using a digital smile technology, and designing an alveolar bone resection guide plate according to a biological width principle, wherein the height of the alveolar bone resection guide plate is 3mm greater than that of the gum resection guide plate; and processing the designed double-guide-plate suite model into an STL file.

And 5: the processed data is imported into a 3D printing device (Form2) to print out a dual-guide plate suite.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A3D printed dual guide plate kit for guiding a crown lengthening procedure, comprising: a matched gingiva resection guide plate (1) and an alveolar bone resection guide plate (2);

the alveolar bone resection guide plate (2) comprises an alveolar bone edge (4), a second cutting end (11), a second labial side wall (12), a second palatal side wall (13), a second positioning hole (10) and an interproximal bone removal point (6); the alveolar bone edge (4) is fixedly connected with the second labial side wall (12), the second labial side wall (12) is fixedly connected with the second cutting end (11), the second palatal side wall (13) is fixedly connected with the second cutting end (11), and an accommodating groove for accommodating dentition is formed among the second labial side wall (12), the second palatal side wall (13) and the second cutting end (11); the second positioning hole (10) is arranged at the cheek tip of the anterior molar; the first cutting end (7), the first lip side wall (8), the first palate side wall (9) and the first positioning hole (5) are the same as the second cutting end (11), the second lip side wall (12), the second palate side wall (13) and the second positioning hole (10) in size respectively; the alveolar bone edge (4) is used for guiding the alveolar bone resection position, resection amount and bone edge shape after resection in the operation; the interproximal bone removal points (6) are used for guiding the alveolar bone resection height and bone edge morphology between two adjacent teeth.

2. The 3D printed dual guide set to guide crown lengthening surgery according to claim 1, characterized in that the alveolar bone resection guide (2) is 3mm greater in height than the gingival resection guide (1).

3. The 3D printed dual guide set for guiding crown lengthening surgery according to claim 1, characterized in that the first labial sidewall (8), the first palatal sidewall (9) and the first incised end (7) are arc-shaped structures that conform to the shape of the dentition;

4. The 3D printed dual guide kit to guide a crown lengthening procedure according to claim 1, characterized in that said first positioning hole (5) is circular in shape with a radius of 3 mm;

5. The 3D printed dual guide set for guiding crown lengthening surgery according to claim 1, characterized in that the thickness of the first labial sidewall (8), the first palatal sidewall (9) and the first incision end (7) is 1mm and the thickness of the first incision end (7) is increased by 3mm in the posterior dental area;

6. The 3D printed dual guide set to guide crown lengthening surgery according to claim 1, characterized in that the gingiva resection guide (1) and the alveolar bone resection guide (2) are 3D printed guides.