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CN105167867A - A kind of mold-making process of tooth plaster model - Google Patents

A kind of mold-making process of tooth plaster model Download PDF

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Publication number
CN105167867A
CN105167867A CN201510647540.3A CN201510647540A CN105167867A CN 105167867 A CN105167867 A CN 105167867A CN 201510647540 A CN201510647540 A CN 201510647540A CN 105167867 A CN105167867 A CN 105167867A
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tooth
model
mold
anhydrite
teeth
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陈超杰
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Dongguan Dingyuan Dental Lab Co ltd
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Dongguan Dingyuan Dental Lab Co ltd
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Abstract

The invention relates to the technical field of production of tooth appliances, in particular to a modeling process of a tooth plaster model, which comprises the following steps: A. taking a mold; B. polishing; C. inserting a nail; D. yellowing: coating a layer of anhydrite on the bottom surface of the tooth male die in a scraping way, taking an anhydrite base matched with the bottom surface of the tooth male die, arranging a through hole matched with a nail in the middle of the anhydrite base, coating common gypsum on the bottom and the outer side of the anhydrite base, and forming a base station together with the base after hardening; E. an upper base station; F. scraping edges; G. digging a nail hole; H. sawing; I. the mode number is written. According to the invention, through adopting the yellowing step, a layer of anhydrite is coated on the bottom surface of the tooth male die in a scraping way, and the abutment is composed of a small part of anhydrite and a large part of common gypsum, so that the consumption of the anhydrite can be greatly reduced by more than 80%, and the production cost is reduced by more than 40%.

Description

一种牙齿石膏模型的作模工艺A kind of mold-making process of tooth plaster model

技术领域 technical field

本发明涉及牙齿矫治器生产技术领域,具体涉及一种牙齿石膏模型的作模工艺。 The invention relates to the technical field of production of dental appliances, in particular to a process for making dental gypsum models.

背景技术 Background technique

牙科样品模型从发明至今已有了多次的变革,从最初用石膏制作模型演变成使用工业塑料制作模型,再到现今市面上的可拆式样品模型。这些在质地上的改变带来了不易磨损的好处,但是有时反而失去了原本的优点,下面举例说明比较,以期更为清楚: The dental sample model has undergone many changes since its invention, from the initial model made of plaster to the use of industrial plastic to make the model, and then to the detachable sample model on the market today. These changes in texture bring the benefits of not being easy to wear, but sometimes lose the original advantages. The following examples illustrate the comparison in order to make it clearer:

1)石膏材质之牙科样品模型:它是在初期消费者意识抬头,市场竞争更趋激烈的情况下,生产者为推广产品,所做的样品模型。制作方式:即从牙医师处取回的模型中选择牙型较美观的模型复制后成为样品模型。它的优点是牙齿外型百分百与天然牙齿一样,但其致命的缺陷是容易磨损、破裂、易脏且很难找到齿位齐全对称之模型。 1) Dental sample model made of gypsum material: it is a sample model made by the manufacturer to promote the product when the initial consumer awareness is rising and the market competition is becoming more intense. Production method: Select a model with a more beautiful tooth shape from the models retrieved by the dentist and copy it to become a sample model. Its advantage is that the shape of the teeth is 100% the same as that of natural teeth, but its fatal flaws are that it is easy to wear, crack, and dirty, and it is difficult to find a model with complete and symmetrical teeth.

2)工业塑料之牙科样品模型:它是先做出一副标准牙样,齿位齐全且对称的模型,用硅胶复制模型,使用工业塑料灌模而制得。该模型因仿真牙齿咬合面发育沟很深且倒凹大,极容易把硅胶损坏。故制造者为让硅胶模的寿命得以增长就把样板牙齿的外形咬头修的圆滑些,咬合面发育沟也做得很浅,没有倒凹,这样,可让硅胶模型的寿命大大的提高。但是,上述做法却大大的降低了样品模型仿真效果。总体来说,该种类模型不易损坏、不易脏,但外观非常差。 2) Dental sample model of industrial plastic: It is made by first making a standard tooth sample with complete and symmetrical teeth, replicating the model with silica gel, and pouring it with industrial plastic. This model is very easy to damage the silicone because of the deep groove and large undercut of the occlusal surface of the simulated teeth. Therefore, in order to prolong the life of the silicone mold, the manufacturer made the shape of the sample teeth smoother, and the occlusal surface development groove was also made very shallow, without undercuts, so that the life of the silicone mold can be greatly improved. However, the above approach greatly reduces the simulation effect of the sample model. In general, this type of model is not easy to damage and dirty, but the appearance is very poor.

现有的牙科样品模型,需要全部采用硬石膏来制作,而硬石膏成本比普通石膏高出很多,增加了生产成本;且现有的牙科样品模型不能做单颗牙的修补,修补后也只能看到外侧,不能从内侧观察修补牙与畸形牙是否贴合紧密。 The existing dental sample models need to be made entirely of anhydrite, and the cost of anhydrite is much higher than that of ordinary gypsum, which increases the production cost; and the existing dental sample models cannot be used for repairing a single tooth, and only need to be repaired. You can see the outside, but you cannot observe from the inside whether the prosthetic tooth and the deformed tooth are tightly fitted.

发明内容 Contents of the invention

为了克服现有技术中存在的缺点和不足,本发明的目的在于提供一种牙齿石膏模型的作模工艺,该作模工艺方法简单,操作控制方便,生产效率高,生产成本低。 In order to overcome the disadvantages and deficiencies in the prior art, the object of the present invention is to provide a molding process for tooth gypsum models. The molding process is simple, easy to operate and control, high in production efficiency and low in production cost.

本发明的另一目的在于提供一种牙齿石膏模型,该牙齿石膏模型可以做单颗或多颗牙的修补,且修补后能从内侧观察修补牙与畸形牙是否贴合紧密。 Another object of the present invention is to provide a tooth gypsum model, which can repair single or multiple teeth, and after the repair, it can be observed from the inside whether the repaired tooth and the deformed tooth are tightly fitted.

本发明的目的通过下述技术方案实现:一种牙齿石膏模型的作模工艺,包括如下步骤: The object of the present invention is achieved through the following technical solutions: a molding process for a tooth plaster model, comprising the steps:

A、取模:获取牙齿畸形患者的牙齿阳模; A. Impression taking: Obtain the positive impression of the tooth of the patient with dental deformity;

B、打磨:将牙齿阳模的地面、内侧舌面、外侧颊面进行打磨; B. Grinding: Grinding the ground, inner lingual surface, and outer buccal surface of the male mold of the teeth;

C、插钉:将打磨后的牙齿阳模的底面开设多个凹槽,凹槽内填充胶水并插入钉子; C. Nail insertion: open multiple grooves on the bottom surface of the polished tooth male mold, fill the grooves with glue and insert nails;

D、上黄:在牙齿阳模的底面刮涂一层硬石膏,取一与牙齿阳模的底面相配合的硬石膏基座,硬石膏基座的中部开设有与钉子相配合的通孔,在硬石膏基座的底部和外侧涂普通石膏,硬化后与基座一起形成基台; D. Yellowing: Scrape and coat a layer of anhydrite on the bottom surface of the tooth male mold, take an anhydrite base that matches the bottom surface of the tooth male mold, and open a through hole that matches the nail in the middle of the anhydrite base. Apply ordinary plaster on the bottom and outside of the anhydrite base, and form the abutment together with the base after hardening;

E、上基台:将牙齿阳模的钉子插入硬石膏基座的通孔内; E. Upper abutment: Insert the nails of the positive mold of the teeth into the through holes of the anhydrite base;

F、刮边:刮去牙齿阳模与基座连接处的硬石膏; F. Scraping: scrape off the anhydrite at the connection between the tooth male mold and the base;

G、挖钉孔:在基座的底部对应钉子的位置挖空,将钉子从基座底部敲出,使牙齿阳模与基台分离; G. Digging the nail hole: hollow out the position corresponding to the nail at the bottom of the base, knock out the nail from the bottom of the base, and separate the positive mold of the tooth from the abutment;

H、锯开:将牙齿阳模有牙齿畸形的牙左侧和右侧锯开,分成多个部分; H. Sawing: Saw the left and right sides of the teeth with deformed teeth on the male model of the teeth, and divide them into multiple parts;

I、写模号:在各部分牙齿阳模的牙根处写上分模号,在基台的内侧面写上总模号,制得牙齿石膏模型。 1, write the model number: write the parting model number at the tooth root of each part of the tooth positive model, write the total model number on the inner side of the abutment, and make the tooth plaster model.

本发明通过采用上黄步骤,在牙齿阳模的底面刮涂一层硬石膏,且基台是由小部分的硬石膏和大部分的普通石膏构成,可以大大减少硬石膏的用量80%以上,生产成本降低40%以上。 In the present invention, a layer of anhydrite is scraped and coated on the bottom surface of the male mold of the teeth by adopting the yellowing step, and the abutment is composed of a small portion of anhydrite and most of ordinary gypsum, which can greatly reduce the consumption of anhydrite by more than 80%. The production cost is reduced by more than 40%.

本发明的作模工艺方法简单,操作控制方便,生产效率提高20%以上,生产成本低。 The molding process method of the invention is simple, convenient to operate and control, the production efficiency is increased by more than 20%, and the production cost is low.

优选的,所述步骤A具体为:首先用牙科硅橡胶材料获取牙齿畸形患者的的牙齿阴模,然后用硬石膏在牙齿阴模上灌制成牙齿阳模。 Preferably, the step A specifically includes: firstly, using dental silicone rubber material to obtain a dental negative mold of a patient with deformed teeth, and then filling the dental negative mold with anhydrite to form a positive tooth mold.

优选的,所述步骤B之后还包括步骤B1、补平:用硬石膏将打磨后的牙齿阳模表面的缺口或凹凸不平的地方补平。 Preferably, after the step B, step B1 is also included, leveling up: using anhydrite to fill up the gaps or uneven places on the surface of the polished tooth male model.

优选的,所述步骤I之后还包括步骤I1、除气泡:除去牙齿石膏模型表面的气泡。 Preferably, step I1 is also included after the step I, removing air bubbles: removing air bubbles on the surface of the tooth plaster model.

优选的,所述步骤I之后还包括步骤J、削咬蜡:在制得的牙齿石膏模型的牙齿部分放一咬蜡,将咬蜡的内侧、外侧边缘进行切削和打磨。 Preferably, after said step I, step J, cutting wax is also included: put a biting wax on the tooth part of the prepared tooth plaster model, and cut and polish the inner and outer edges of the biting wax.

优选的,所述步骤J之后还包括步骤K、戴咬蜡:将制得的牙齿石膏模型的上颌模型和下颌模型之间装入咬蜡,咬合固位。 Preferably, after the step J, step K is also included, wearing the bite wax: putting the bite wax between the upper jaw model and the lower jaw model of the prepared tooth plaster model, and occlusal retention.

优选的,所述步骤K之后还包括步骤L、画中线:在咬合固位后的上颌模型和下颌模型的颊侧中部分别画中线。 Preferably, step L, midline drawing is also included after step K: draw midlines on the buccal middle parts of the maxillary model and the mandibular model after occlusal retention.

优选的,所述步骤L之后还包括步骤M、上咬合架:将牙齿石膏模型的上颌模型和下颌模型通过一咬合架进行固位。 Preferably, step M, upper articulator is also included after the step L: retaining the upper jaw model and the lower jaw model of the dental gypsum model through an articulator.

本发明的另一目的通过下述技术方案实现:一种牙齿石膏模型,所述牙齿石膏模型根据上述所述的作模工艺制得。 Another object of the present invention is achieved through the following technical solutions: a tooth plaster model, which is made according to the molding process described above.

本发明的牙齿石膏模型可以做单颗或多颗牙的修补,且修补后能从内侧观察修补牙与畸形牙是否贴合紧密。 The dental gypsum model of the present invention can be used for repairing single or multiple teeth, and after repairing, it can be observed from the inside whether the repaired teeth and deformed teeth are closely fitted.

本发明的有益效果在于:本发明通过采用上黄步骤,在牙齿阳模的底面刮涂一层硬石膏,且基台是由小部分的硬石膏和大部分的普通石膏构成,可以大大减少硬石膏的用量80%以上,生产成本降低40%以上。 The beneficial effect of the present invention is that: the present invention scrapes and coats a layer of anhydrite on the bottom surface of the tooth positive mold by adopting the yellowing step, and the abutment is composed of a small part of anhydrite and most of ordinary gypsum, which can greatly reduce the anhydrite. The amount of gypsum is more than 80%, and the production cost is reduced by more than 40%.

本发明的作模工艺方法简单,操作控制方便,生产效率提高20%以上,生产成本低。 The molding process method of the invention is simple, convenient to operate and control, the production efficiency is increased by more than 20%, and the production cost is low.

本发明的牙齿石膏模型可以做单颗或多颗牙的修补,且修补后能从内侧观察修补牙与畸形牙是否贴合紧密。 The dental gypsum model of the present invention can be used for repairing single or multiple teeth, and after repairing, it can be observed from the inside whether the repaired teeth and deformed teeth are closely fitted.

具体实施方式 Detailed ways

为了便于本领域技术人员的理解,下面结合实施例对本发明作进一步的说明,实施方式提及的内容并非对本发明的限定。 In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the examples, and the contents mentioned in the embodiments are not intended to limit the present invention.

实施例1 Example 1

一种牙齿石膏模型的作模工艺,包括如下步骤: A molding process for dental gypsum models, comprising the steps of:

A、取模:获取牙齿畸形患者的牙齿阳模; A. Impression taking: Obtain the positive impression of the tooth of the patient with dental deformity;

B、打磨:将牙齿阳模的地面、内侧舌面、外侧颊面进行打磨; B. Grinding: Grinding the ground, inner lingual surface, and outer buccal surface of the male mold of the teeth;

C、插钉:将打磨后的牙齿阳模的底面开设多个凹槽,凹槽内填充胶水并插入钉子; C. Nail insertion: open multiple grooves on the bottom surface of the polished tooth male mold, fill the grooves with glue and insert nails;

D、上黄:在牙齿阳模的底面刮涂一层硬石膏,取一与牙齿阳模的底面相配合的硬石膏基座,硬石膏基座的中部开设有与钉子相配合的通孔,在硬石膏基座的底部和外侧涂普通石膏,硬化后与基座一起形成基台; D. Yellowing: Scrape and coat a layer of anhydrite on the bottom surface of the tooth male mold, take an anhydrite base that matches the bottom surface of the tooth male mold, and open a through hole that matches the nail in the middle of the anhydrite base. Apply ordinary plaster on the bottom and outside of the anhydrite base, and form the abutment together with the base after hardening;

E、上基台:将牙齿阳模的钉子插入硬石膏基座的通孔内; E. Upper abutment: Insert the nails of the positive mold of the teeth into the through holes of the anhydrite base;

F、刮边:刮去牙齿阳模与基座连接处的硬石膏; F. Scraping: Scrape off the anhydrite at the connection between the tooth male mold and the base;

G、挖钉孔:在基座的底部对应钉子的位置挖空,将钉子从基座底部敲出,使牙齿阳模与基台分离; G. Digging the nail hole: hollow out the position corresponding to the nail at the bottom of the base, knock out the nail from the bottom of the base, and separate the positive mold of the tooth from the abutment;

H、锯开:将牙齿阳模有牙齿畸形的牙左侧和右侧锯开,分成多个部分; H. Sawing: Saw the left and right sides of the teeth with deformed teeth on the male model of the teeth, and divide them into multiple parts;

I、写模号:在各部分牙齿阳模的牙根处写上分模号,在基台的内侧面写上总模号,制得牙齿石膏模型。 1, write the model number: write the parting model number at the tooth root of each part of the tooth positive model, write the total model number on the inner side of the abutment, and make the tooth plaster model.

所述步骤A具体为:首先用牙科硅橡胶材料获取牙齿畸形患者的的牙齿阴模,然后用硬石膏在牙齿阴模上灌制成牙齿阳模。 The step A specifically includes: firstly, using dental silicone rubber material to obtain a dental negative mold of a patient with deformed teeth, and then filling the dental negative mold with anhydrite to form a dental positive mold.

所述步骤B之后还包括步骤B1、补平:用硬石膏将打磨后的牙齿阳模表面的缺口或凹凸不平的地方补平。 Step B1 is also included after the step B, leveling up: using anhydrite to fill up the gaps or uneven places on the surface of the polished tooth male model.

所述步骤I之后还包括步骤I1、除气泡:除去牙齿石膏模型表面的气泡。 Step I1 is also included after the step I, removing air bubbles: removing the air bubbles on the surface of the tooth plaster model.

所述步骤I之后还包括步骤J、削咬蜡:在制得的牙齿石膏模型的牙齿部分放一咬蜡,将咬蜡的内侧、外侧边缘进行切削和打磨。 After the step I, step J, cutting wax is also included: put a biting wax on the tooth part of the prepared tooth plaster model, and cut and polish the inner and outer edges of the biting wax.

所述步骤J之后还包括步骤K、戴咬蜡:将制得的牙齿石膏模型的上颌模型和下颌模型之间装入咬蜡,咬合固位。 Step K is also included after the step J, wearing the bite wax: putting the bite wax between the upper jaw model and the lower jaw model of the prepared tooth plaster model, and occlusal retention.

所述步骤K之后还包括步骤L、画中线:在咬合固位后的上颌模型和下颌模型的颊侧中部分别画中线。 Step L, midline drawing is also included after the step K: draw midlines respectively on the buccal middle parts of the maxillary model and the mandibular model after occlusal retention.

所述步骤L之后还包括步骤M、上咬合架:将牙齿石膏模型的上颌模型和下颌模型通过一咬合架进行固位。 Step M, upper articulator is also included after the step L: retaining the upper jaw model and the lower jaw model of the dental gypsum model through an articulator.

本发明通过采用上黄步骤,在牙齿阳模的底面刮涂一层硬石膏,且基台是由小部分的硬石膏和大部分的普通石膏构成,可以大大减少硬石膏的用量80%以上,生产成本降低40%以上。 In the present invention, a layer of anhydrite is scraped and coated on the bottom surface of the male mold of the teeth by adopting the yellowing step, and the abutment is composed of a small portion of anhydrite and most of ordinary gypsum, which can greatly reduce the consumption of anhydrite by more than 80%. The production cost is reduced by more than 40%.

本发明的作模工艺方法简单,操作控制方便,生产效率提高20%以上,生产成本低。 The molding process method of the invention is simple, convenient to operate and control, the production efficiency is increased by more than 20%, and the production cost is low.

本发明的牙齿石膏模型可以做单颗或多颗牙的修补,且修补后能从内侧观察修补牙与畸形牙是否贴合紧密。 The dental gypsum model of the present invention can be used for repairing single or multiple teeth, and after repairing, it can be observed from the inside whether the repaired teeth and deformed teeth are closely fitted.

上述实施例为本发明较佳的实现方案,除此之外,本发明还可以其它方式实现,在不脱离本发明构思的前提下任何显而易见的替换均在本发明的保护范围之内。 The above-mentioned embodiments are preferred implementation solutions of the present invention. In addition, the present invention can also be realized in other ways, and any obvious replacements are within the protection scope of the present invention without departing from the concept of the present invention.

Claims (9)

1.一种牙齿石膏模型的作模工艺,其特征在于:包括如下步骤: 1. a molding process of plaster of teeth model, is characterized in that: comprise the steps: A、取模:获取牙齿畸形患者的牙齿阳模; A. Impression taking: Obtain the positive impression of the tooth of the patient with dental deformity; B、打磨:将牙齿阳模的地面、内侧舌面、外侧颊面进行打磨; B. Grinding: Grinding the ground, inner lingual surface, and outer buccal surface of the male mold of the teeth; C、插钉:将打磨后的牙齿阳模的底面开设多个凹槽,凹槽内填充胶水并插入钉子; C. Nail insertion: open multiple grooves on the bottom surface of the polished tooth male mold, fill the grooves with glue and insert nails; D、上黄:在牙齿阳模的底面刮涂一层硬石膏,取一与牙齿阳模的底面相配合的硬石膏基座,硬石膏基座的中部开设有与钉子相配合的通孔,在硬石膏基座的底部和外侧涂普通石膏,硬化后与基座一起形成基台; D. Yellowing: Scrape and coat a layer of anhydrite on the bottom surface of the tooth male mold, take an anhydrite base that matches the bottom surface of the tooth male mold, and open a through hole that matches the nail in the middle of the anhydrite base. Apply ordinary plaster on the bottom and outside of the anhydrite base, and form the abutment together with the base after hardening; E、上基台:将牙齿阳模的钉子插入硬石膏基座的通孔内; E. Upper abutment: Insert the nails of the positive mold of the teeth into the through holes of the anhydrite base; F、刮边:刮去牙齿阳模与基座连接处的硬石膏; F. Scraping: Scrape off the anhydrite at the connection between the tooth male mold and the base; G、挖钉孔:在基座的底部对应钉子的位置挖空,将钉子从基座底部敲出,使牙齿阳模与基台分离; G. Digging the nail hole: hollow out the position corresponding to the nail at the bottom of the base, knock out the nail from the bottom of the base, and separate the positive mold of the tooth from the abutment; H、锯开:将牙齿阳模有牙齿畸形的牙左侧和右侧锯开,分成多个部分; H. Sawing: Saw the left and right sides of the teeth with deformed teeth on the male model of the teeth, and divide them into multiple parts; I、写模号:在各部分牙齿阳模的牙根处写上分模号,在基台的内侧面写上总模号,制得牙齿石膏模型。 1, write the model number: write the parting model number at the tooth root of each part of the tooth positive model, write the total model number on the inner side of the abutment, and make the tooth plaster model. 2.根据权利要求1所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤A具体为:首先用牙科硅橡胶材料获取牙齿畸形患者的的牙齿阴模,然后用硬石膏在牙齿阴模上灌制成牙齿阳模。 2. The mold-making process of a plaster model of teeth according to claim 1, characterized in that: said step A is specifically: first use dental silicone rubber material to obtain the tooth mold of the patient with dental deformity, and then use anhydrite The positive mold of the tooth is poured on the negative mold of the tooth. 3.根据权利要求1所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤B之后还包括步骤B1、补平:用硬石膏将打磨后的牙齿阳模表面的缺口或凹凸不平的地方补平。 3. The mold-making process of a kind of dental gypsum model according to claim 1, characterized in that: after said step B, step B1 is also included, leveling up: using anhydrite to grind the gap or surface of the tooth male mold surface after grinding Fill in uneven areas. 4.根据权利要求1所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤I之后还包括步骤I1、除气泡:除去牙齿石膏模型表面的气泡。 4. the molding process of a kind of tooth plaster model according to claim 1, is characterized in that: after described step 1, also comprises step I1, degassing: remove the air bubble on tooth plaster model surface. 5.根据权利要求1所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤I之后还包括步骤J、削咬蜡:在制得的牙齿石膏模型的牙齿部分放一咬蜡,将咬蜡的内侧、外侧边缘进行切削和打磨。 5. The mold-making process of a kind of plaster of teeth model according to claim 1, characterized in that: after the step I, step J, cutting and biting the wax are also included: put a bite on the teeth part of the plaster of teeth made model. Wax, chip and sand the inside and outside edges of the bite wax. 6.根据权利要求5所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤J之后还包括步骤K、戴咬蜡:将制得的牙齿石膏模型的上颌模型和下颌模型之间装入咬蜡,咬合固位。 6. The mold-making process of a kind of tooth plaster model according to claim 5, characterized in that: after the step J, step K, wearing wax: the upper jaw model and the lower jaw model of the tooth plaster model made Biting wax is put in between, and the bite is fixed. 7.根据权利要求6所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤K之后还包括步骤L、画中线:在咬合固位后的上颌模型和下颌模型的颊侧中部分别画中线。 7. The mold-making process of a plaster model of teeth according to claim 6, characterized in that: after the step K, it also includes step L, drawing the midline: the buccal side of the maxillary model and the mandibular model after occlusal retention Draw a midline in the middle. 8.根据权利要求7所述的一种牙齿石膏模型的作模工艺,其特征在于:所述步骤L之后还包括步骤M、上咬合架:将牙齿石膏模型的上颌模型和下颌模型通过一咬合架进行固位。 8. The mold making process of a kind of dental plaster model according to claim 7, characterized in that: after said step L, step M, upper articulator is also included: the upper jaw model and the lower jaw model of the dental plaster model are passed through an occlusal Rack for fixation. 9.一种牙齿石膏模型,其特征在于:所述牙齿石膏模型根据权利要求1-8任一项所述的作模工艺制得。 9. A tooth plaster model, characterized in that: the tooth plaster model is made according to the molding process described in any one of claims 1-8.
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CN105232164A (en) * 2015-10-09 2016-01-13 东莞定远陶齿制品有限公司 A kind of manufacturing process of dental plaster model
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