Method for making complete dentures with individualized polished surfaces using old dentures

Abstract

The invention discloses a method for using old dentures to make complete dentures with personalized polished surfaces, comprising the following specific steps: preparing the patient's old maxillary dentures and old mandibular dentures; using the old maxillary dentures as individual trays for final printing Mold preparation and polished surface shaping; use old mandibular dentures as individual trays to make final impressions and simultaneously perform polished surface shaping; scan final upper and lower jaw impressions with personalized polished surfaces Get the final impression and get the STL file; separate the dentition from the STL file; use CAD / CAM to cut the separated upper and lower dentition with resin blocks; reset the cut dentition to the original In the cavity of the female mold after embedding, plastic filling and injection molding are carried out to complete the production of complete dentures. The invention is more accurate and simple to manufacture; avoids the disadvantage of insufficient molding caused by direct molding of the self-curing resin to the personalized polished surface; reduces the time for adjusting the occlusion when wearing teeth, and enables patients to quickly adapt to new complete dentures .

Description

technical field [0001] The invention belongs to the technical field of denture production, and in particular relates to a method for producing a complete denture with a personalized polished surface by utilizing old dentures. Background technique [0002] Dentures made for people with missing teeth are called complete dentures. The stability of complete dentures is affected by the peripheral neuromuscular system in the oral cavity. Oral functions, such as pronunciation, chewing, swallowing, smiling, and laughing, are complex and individualized processes involving the muscles of the tongue, lips, cheeks, and floor of the mouth. For patients wearing complete dentures, neuromuscular control is the key to the stability of the denture. Fish first proposed the concept of the neutral zone of complete dentures in 1993, which was defined as the potential gap around the denture between the lips, cheeks, and tongue muscles. In theory, in the neutral zone, the strength of the cheek mu...

AI Technical Summary

Problems solved by technology

[0004] If the polished surface is made by tissue indicator, and the guide plate is made to replicate the polished surface, the whole process is done by hand, which is time-consuming, laborious and has poor accuracy

[0005] If the self-curing resin is placed on the polished surface of the old denture to directly make a personalized polished surface, since it is directly placed in the patient's mouth for molding, it will stimulate the mucous membrane, and because the self-curing resin is very fluid Poor, so the ideal polished surface shape cannot be formed

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