Positioning device for guiding bonding of labial brackets and manufacturing method of positioning device

Abstract

The present invention discloses a positioning device for guiding bonding of labial brackets and a manufacturing method of the positioning device. The positioning device manufactured by the method consists of a splint (1), marking blocks (3) and connecting blocks (6) which are fixedly connected into a whole, a functional surface of the splint is provided with occlusion teeth marks (2), and a non-functional surface of the splint is a horizontal smooth surface; the number of the connecting blocks (6) is the same as that of the marking blocks (3), and the connecting blocks are connected with palatoglossal side surfaces of the marking blocks (3) to form a structure with a longitudinal cross-sectional shape of a reversed L-shape or an L-shape; and a gingival end face of each marking block (3) for positioning is matched with an adjacent binding face of a bracket (7). The manufacturing method is simple and mature, and easy to popularize, the obtained positioning device is simple in structure and convenient to operate, accuracy of bracket bonding positions can be ensured from multiple angles, efficiency of clinical operation is improved, besides, the positioning device is firmer, and the positioning device is not liable to deform and damage in actual manufacturing, packaging and transportation processes.

Description

technical field [0001] The invention belongs to the technical field of orthodontic devices and their preparation, and in particular relates to a positioning device and a manufacturing method for guiding labial bracket bonding. Background technique [0002] Bracket bonding is a critical step in orthodontic treatment. Accurate and firm bonding of the brackets is conducive to the smooth development of subsequent orthodontic treatment. At present, the methods of bracket bonding are mainly divided into two categories: direct bonding and indirect bonding. Direct bonding refers to the process in which the doctor directly picks up the bracket with tweezers, and presses and bonds the bracket to a specific position on the tooth surface. Indirect bonding refers to the process in which the doctor presses the transfer device with the bracket placed in advance and sticks it in place on the tooth surface. This process uses the transfer device to assist in positioning the bracket, such as...

AI Technical Summary

Problems solved by technology

However, the above-mentioned two types of bracket bonding methods all have deficiencies: direct bonding needs to rely on doctors to observe the tooth surface with the naked eye and manually adjust the position of the brackets, so that the operation is not standardized, the process is more complicated, and the brackets are sticky. It is not easy to connect accurately, which will affect the efficiency of orthodontic treatment

[0004] First, because the vertical section and horizontal section of the "L" shape of the guide frame are only 0.5-1.5mm in thickness, which is relatively thin, it is not only easy to damage during the actual production, packaging and transportation, but also requires special packaging materials, which not only increases the cost, but also increases the packaging process and removal process

[0005] Second, the thickness of the connector is close to the thickness of the guide frame, so that the structural part also has a series of problems such as easy damage

[0006] Third, since one end of the connector is connected to the intersection of the horizontal section and the vertical section of the guide frame, once the junction is deformed or broken, it will directly affect the positioning accuracy of the guide frame, or it cannot be positioned

[0007] Fourth, during the bonding process of the bracket, the distal surface and the maxillary surface of the bracket need to be in contact with the vertical section and the horizontal section of the guide frame respectively. plane, it will increase the difficulty of making the guide frame

In order to avoid partial contact between the support rods and the distal and mesial surfaces of the contact brackets in the guide frame, not only manual adjustments are required one by one, resulting in a cumbersome process, but also the support rods need to be removed one by one after forming, which is troublesome and easy to remove. The guide frame and connectors connected to the support rods are damaged

[0009] Sixth, due to the small size of the guide frame and the connector, the guide frame may be deformed by the extrusion of the bracket during the bracket bonding process, which will affect its bonding accuracy

[0010] Seventh, since the vertical section of each guide frame needs to be located on the distal adjacent surface of the bracket and occupy a certain space, not only for brackets with limited mesial-distal space for bonding (that is, occupied by two adjacent teeth) The case cannot be used, and it will block the operating field of view of the rear teeth during operation, which is not conducive to the bonding of the rear tooth brackets, and even makes the device unsuitable

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