Design production method of dental implantation repair individual tray

Abstract

The invention relates to a design production method of a dental implantation repair individual tray. The design production method comprises: preparing an initial impression, and filling a plaster model; scanning the initial impression or plaster model; transferring the scanning data into a reverse engineering software, and extracting the cloud data of the tissue surface points inside the initial impression mucous membrane folding line; filling the inverted concave region; uniformly amplifying 2-3 mm along the data surface normal direction to obtain a virtual tray inner surface; uniformly thickening 2 mm along the virtual tray inner surface normal direction; reserving an impression rod penetrating hole on the surface of the tray in the implant corresponding region; designing a maxillary virtual tray handle and a mandibular virtual tray handle; and carrying out boundary fusion on the virtual tray inner surface data, the outer surface data and the handle data, storing in the STL format, and producing the edentulous personalized impression tray having the resin material through 3D printing equipment. According to the present invention, the produced dental implantation repair individual tray using the digital designing can replace the traditional hand-made production, and the precision of the opening implantation impression is easily improved.

Description

technical field [0001] The invention relates to the manufacture of a restoration impression tray, in particular to a design and manufacture method of individual trays for dental implant restoration. Background technique [0002] For multi-dentate implant restoration, the open-window impression can effectively improve the accuracy of the spatial position and posture information recording of various implants. At present, there are two commonly used trays in clinical practice at home and abroad, including the punching method of finished trays, self-coagulation or manual production of photosensitive resin sheets. The main advantages and disadvantages are as follows: [0003] 1. Punching method of the finished product tray: It is more convenient to punch the finished resin tray, without making the initial impression and pouring the plaster model, and the clinician can complete it by simple manual operation. However, poor hardness can easily lead to deformation of the final impre...

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Problems solved by technology

However, poor hardness may easily lead to deformation of the final impression and affect the accuracy of the impression

[0004] 2. Self-curing or photosensitive resin sheet manual production method: various clinical production requirements can be realized, but the initial impression must be cast into a plaster model, and special equipment and material sheets are required, and the cost is relatively high

And it needs a special person to spend 1-2 hours to complete the production, the efficiency is low, and it cannot be directly applied in the clinic

[0005] 3. Due to manual visual inspection, the above two methods are difficult to achieve the uniformity of the thickness of the final impression material, and the production effect is greatly affected by the experience of the operator, which indirectly affects the accuracy of impression making

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