Preparation of Hyperbranched Polyamine-Ester Flow Resin for Low-shrinkage Non-bis-gma-based Dental Restoration

A hyperbranched polymer-based dental technology, applied in the field of preparation of dental restoration materials, can solve the problems of increased polymerization shrinkage of the total content, no further exploration, etc., to achieve reduced polymerization shrinkage, excellent fluidity, and easy clinical The effect of the operation
CN113121748BActive Publication Date: 2022-07-12DONGHUA UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGHUA UNIV
Publication Date
2022-07-12

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Abstract

The invention relates to the preparation of a low-shrinkage non-Bis-GMA-based dental repair hyperbranched polyurethane-ester flow resin. 2 Type branched monomers and catalysts are mixed, polyol is used as the core, and a quasi-one-step polycondensation method is used to prepare polyhydroxy hyperbranched polyamine-ester (HPAE); Modified hyperbranched polyamine-ester molecule, mixed with diluent, silanized inorganic filler and photoinitiator uniformly by three-roll mill to obtain uncured, flowable, low polymerization shrinkage and no Bis-GMA Flow resin for dental restorations with organic components. The flowable resin prepared by the present invention has low viscosity and good fluidity before photocuring, can greatly reduce the polymerization shrinkage rate of the composite resin material after photocuring, and does not have the potential toxicity problem caused by the release of bisphenol A, and is expected to It can effectively meet the needs of some small defects that are difficult to fill, the restoration and treatment of small caries in the maxillofacial area and narrower areas in preventive restoration.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of dental restoration materials, and relates to the preparation of a low-shrinkage non-Bis-GMA-based dental restoration hyperbranched polyurethane-ester flow resin. Background technique

[0002] With the improvement of civilization, caries, as the most common oral disease, not only directly affects the patient's facial appearance and chewing function, but also causes serious systemic, non-infectious chronic diseases, so its treatment and restoration have changed. be extremely important. The main method of caries treatment at present is direct filling and repair, and the core of repair treatment is the repair material used. With the rapid development of material technology, this type of restoration material has developed from the early silver amalgam to the current mainstream general-purpose dental restoration composite resin. Studies have fully confirmed that this type of restoration material...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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