A dental composition, a method of making the same, a gutta percha point and a method of making the gutta percha point
By adding polypropylene and dimethyl silicone oil to the dental composition of the gutta-percha points, the problem of difficult injection molding of gutta-percha points has been solved, enabling the manufacture of gutta-percha points with high fluidity, low viscosity and high strength, reducing production costs and improving product quality.
CN120478167BActive Publication Date: 2026-04-10SHENZHEN DEJIA MEDICAL DEVICES CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN DEJIA MEDICAL DEVICES CO LTD
- Filing Date
- 2025-05-20
- Publication Date
- 2026-04-10
AI Technical Summary
Technical Problem
Traditional gutta-percha points have poor flowability during injection molding, making them prone to sticking to the mold, resulting in difficulty in demolding, making them difficult to manufacture and costly.
Method used
A dental composition containing gutta-percha, polypropylene, and dimethyl silicone oil is used. By adjusting the proportions of raw materials and the mixing process, the flowability and viscosity are improved, thereby enhancing the injection molding effect.
Benefits of technology
It improves the flowability and strength of gutta-percha points, reduces production costs, increases product quality and output, and meets the precision manufacturing needs of small-sized gutta-percha points.
✦ Generated by Eureka AI based on patent content.
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Figure CN120478167B_ABST
Abstract
The application relates to the field of dental root canal filling, and particularly discloses a dental composition, a preparation method thereof, a gutta-percha point and a preparation method of the gutta-percha point. The dental composition comprises the following raw materials: gutta-percha, polypropylene and dimethyl silicone oil; the preparation method comprises the following steps: S1, mixing gutta-percha and polypropylene, the mixing temperature is 80-100 DEG C, the rotating speed is 30-60 r / min, and the mixing time is 30-60 min, to obtain a colloid; and S2, adding the remaining raw materials into the colloid to continue mixing, to obtain the dental composition. By adding polypropylene and dimethyl silicone oil into the gutta-percha, part of the gutta-percha is replaced by low-melting-point polypropylene which has better biocompatibility, compared with the common gutta-percha point which usually contains about 20% of gutta-percha, the proportion of the gutta-percha is appropriately reduced, meanwhile, under the action of the dimethyl silicone oil, the flowability and viscosity of the gutta-percha point are improved, so that the gutta-percha point is beneficial to the injection molding process, and the yield, quality and cost can be improved.
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Citation Information
Patent Citations
Biological ceramic gutta-percha point
CN114099351A