TWI524312B - The Method of Making Dental Teaching Dental - Google Patents

Description

Method for making dental implant teaching dental mold

The invention relates to a method for making a teaching dental mold, in particular to a method for artificial dental implants, based on clinical cases for making dental implant teaching dental molds.

Most of the early missing teeth can only use traditional active dentures, or fixed crowns or bridges. When fixing the bridge, you must also repair the intact teeth on both sides of the missing area. If the full mouth is gone, then It’s really tasteless. Until the dental implant technology appears, it is suitable for single, multiple or full mouthless patients.

The direction and position of the implants play a very important role in the outcome of the treatment. Inappropriate orientation can cause excessive occlusion stress, resulting in rapid loss of bone ridge and loss of the implant.

Proper orientation of the implant depends on two factors: perfect preoperative planning and precise intraoperative drilling. In the preoperative planning of existing dental implant surgery, the dentist must use the patient's dental model and CT photography as the basis for planning the optimal dental implant orientation. The dental model mainly provides external information to let the dentist understand the patient's upper and lower teeth occlusion and provide surgery. After the aesthetic information; on the contrary, CT photography can provide internal anatomical information, including teeth, humerus, alveolar bone, upper sinus and so on. As for implant implantation during surgery, most of them rely on the clinical experience and surgical skills of the dentist, and the preoperative planning is implemented in the patient's mouth. Therefore, the dentist's freehand drilling stability and visual three-dimensional space become the quality of surgery. An important factor.

The development of implants has been in existence for more than 20 years. The inheritance of experience has also allowed the implant dentists to understand the standard procedures for implants. The physicians who have undergone complete implant training know that How to increase the success rate of implants and reduce the occurrence of sequelae. The cultivation of implant dentists requires time and money to develop skilled surgical techniques, and it requires experience accumulation. Therefore, the teaching model based on clinical cases is definitely the best way for the dental surgeon to cultivate skilled surgical techniques and experience.

Therefore, in order to solve the above-mentioned deficiencies, the object of the present invention is to provide a method for manufacturing a dental implant teaching dental mold, which integrates the dental model of the missing tooth case with the digital model data obtained by computerized tomography (CT) photography, and integrates the aforementioned digital position. After the model data is processed and formed, the dental model is obtained. According to the dental model of the method, the exterior has the same natural appearance as the real person. The thickness of the internal cortical bone is consistent with the real person, and the distribution of the cortical bone and the sponge bone of the model. The structure is consistent with the real person and has the value of immersive teaching.

In order to achieve the above object, the present invention discloses a method for manufacturing a dental implant teaching dental mold, the method comprising at least the following steps: Step (A-1) For a missing tooth case, the dentist uses the dental mold material to make the missing tooth In the case of the dental model of the case, the dental technician uses the revolving tooth shape to inject the dental material to form a tooth model; and step (A-2) scans the tooth model with a scanner to obtain a part of the tooth material. The first model data; the step (B) is to take a medical image for the edentulous case, and process the medical image to obtain a second model data of the internal structural material of the oral cavity of the edentulous case; and step (C) The model data is aligned with the second model data. After the alignment, the tooth part data of the first model data is converted into a third model data, and the skeleton internal structure data of the second model data is converted into a fourth model data. Step (D) combining the tooth part model data of the third model data with the bone internal structure model data of the fourth model data to obtain a fifth model data; and step (E) the fifth model Data processing and molding obtains a teaching dental model that is consistent with the characteristics of the missing tooth case.

The medical image is photographed by a computed tomography (CT) image of the missing tooth to obtain an image of the surrounding tissue of the missing tooth case.

Wherein, the external model of the dental model has the same tooth appearance and gum model as the case of the missing tooth, and the teaching dental model has the same internal structure of the oral surrounding bone as the missing tooth case.

The invention has the advantages that the dental model of the missing tooth case and the digital model data obtained by using computed tomography (CT) photography can be processed and formed after the model data is integrated, and the characteristics of the missing tooth case are obtained. Consistent teaching model of dental model, the exterior has the same natural appearance as the real person. The upper jaw of the model can be cut by the scalpel. The model of the alveolar bone is consistent with the case characteristics. It has two different density structures: cortical bone and Sponge bone, internal cortical bone thickness is consistent with real people, the model's cortical bone and sponge bone distribution structure is consistent with real people, with immersive teaching value. Teaching dental molds based on clinical cases are definitely the best way for implant dentists to develop skilled surgical techniques and experience.

FIG. 1 is a schematic diagram of an implementation flow of the present invention.

The detailed description of the present invention and the technical description of the present invention are further illustrated by the embodiments, but it should be understood that these embodiments are for illustrative purposes only and are not to be construed as limiting.

The characteristics of the dental implant model are that the model alveolar bone part must be consistent with the living body feature, and has two different density structures: cortical bone and sponge bone, and the gingival structure on the dental mold can be cut by the scalpel. Teaching dental models with the above characteristics will enable the implant dentist to develop the experience of surgical techniques and different cases that are familiar to real cases.

Please refer to FIG. 1 , which is a schematic diagram of an implementation flow of the present invention. This hair A method for making a dental implant teaching dental mold includes at least the following steps: finding a missing tooth case by a clinical dentist, and then performing step (A-1), for which the dentist uses dental mold material Reducing the tooth profile of the edentulous case, and then the dental technician uses the revolving tooth mold to inject the dental material to form a tooth model; and step (A-2) scans the tooth model with a scanner to obtain A first model of data on the tooth part. The dental model is made into a known technique, and is not the focus of this patent, and will not be further described herein.

Step (B): taking a medical image for the edentulous case, and processing the medical image to obtain a second model data of the internal structural material of the oral cavity of the edentulous case; wherein the medical image is scanned by computed tomography (CT) The photograph of the missing tooth case is used to obtain an image of the surrounding tissue of the missing tooth case. Computed tomography (CT) photography is a known technique and is not the focus of this patent, and will not be described here. However, it is important to emphasize the information about the soft and hard tissues in the oral cavity obtained by computed tomography (CT) imaging of the surrounding tissues of the oral cavity. Thus, the second model data has the distribution of the gingival structure of the missing tooth case, and the internal cortex. The bone and sponge bone distribution structure is consistent with this missing tooth case.

The above steps (A-1) and (A-2) may be performed in the same manner as the step (B), as long as the first model data and the second model data are respectively obtained.

In the following step (C), the first model data is aligned with the second model data, and the second model data is made by using the feature position of the first model data as a reference. Data adjustment such as translation or rotation or scaling, so that the first model data and the second model data correspond to each other and coincide; after the alignment, the tooth portion data of the first model data is converted into a third model data, and the first The internal structural data of the bones of the second model data is converted into a fourth model data.

Step (D) is to compare the tooth part model data of the third model data with The fourth model data is obtained by combining the internal structural model data of the fourth model data; the fifth model data includes the tooth part model data of the missing tooth case and the internal structural model data of the bone.

According to the recent step (E), according to the fifth model data, the dental mold maker can process and shape, and a teaching dental model which is consistent with the characteristics of the missing tooth case can be obtained. The external model of the dental model has the same tooth appearance and gum model as the case of the missing tooth, and the teaching dental model has the same internal structure of the oral periphery as the case of the missing tooth.

The external model of the dental model has the same natural appearance as the real person. The upper jaw of the model can be cut by the scalpel. The model of the alveolar bone is consistent with the case characteristics. It also has two different density structures: cortical bone and sponge bone. The thickness of the internal cortical bone is consistent with that of the real person. The distribution of the cortical bone and the spongy bone of the model is consistent with the real person and has the value of immersive teaching. Teaching dental molds based on clinical cases are definitely the best way for implant dentists to develop skilled surgical techniques and experience.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

Claims (3)

A method for preparing a dental implant teaching dental mold, the method comprising at least the following steps: (A-1) for a missing tooth case, the dentist uses a dental over-mold material to reproduce the tooth profile of the missing tooth case, and then the tooth The technician uses a revolving tooth mold to inject the dental material into a tooth model; (A-2) scans the tooth model with a scanner to obtain a first model data of the tooth portion data; (B) for the aforementioned deficiency The dental case takes a medical image, and the medical image is processed to obtain a second model data of the internal structural material of the oral cavity of the missing tooth case, wherein the second model data includes the size distribution data of the gingival structure of the missing tooth case and the internal Cortical bone and sponge bone distribution structure; (C) aligning the first model data with the second model data, and after correcting, converting the tooth portion data of the first model data into a third model data, and the The internal structural data of the second model data is converted into a fourth model data; (D) the tooth part model data of the third model data is combined with the bone internal structural model data of the fourth model data, Obtaining a fifth model data; and (E) processing the fifth model data to obtain a teaching dental model that is consistent with the characteristics of the missing tooth case, wherein the teaching tooth model has the same teeth as the missing tooth case The appearance, the gum model, and the surrounding bones of the mouth, and the gum model is a material that can be cut, and the bone surrounding the oral cavity is made according to the second model data corresponding to the distribution of the inner cortical bone and the sponge bone. The density was constructed and the internal cortical bone thickness was consistent with the case of missing teeth. The method of claim 1, wherein the medical image is imaged by a computed tomography (CT) scan to obtain an image of the surrounding tissue of the edentulous case. The method of claim 1, wherein the first model data and the second model data are based on the feature position of the first model data, and the first model data feature location is used. The second model data is adjusted to make the first model data and the second model data coincide.