Dentistry color composite resin high-strength fiber temporary prosthesis and production method thereof
A composite resin and high-strength fiber technology, applied in dental preparations, dental prostheses, dentistry, etc., can solve the problems of poor aesthetic effect and insufficient mechanical properties of bending elastic modulus, so as to improve the aesthetics and improve the overall mechanical properties , Improve the effect of the overall mechanical strength
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Embodiment 1
[0029] Example 1: Preparation of grooved colored high-strength fiber resin composite material
[0030] Raw materials: 2,5-dihydroxyterephthalic acid (MeTHPA, analytically pure); tetraaminopyridine trihydrochloride monohydrate (MeTHPA, analytically pure); polyphosphoric acid (MeTHPA, analytically pure); Phosphorus (MeTHPA, analytically pure); terephthalic acid; 4,6-diaminoresorcinol hydrochloride; silane coupling agent (Z-6040, Dow Corning, USA); bisphenol A epoxy resin (E -51, epoxy value 0.48~0.54eq / 1009); methyltetrahydrophthalic anhydride (MeTHPA, analytically pure); 2,4,6-tris(dimethylaminomethyl)phenol (DMP-30, chemically pure) ; Titanate coupling agent (Sigma, USA); ether diluent; nano TiO 2 (particle diameter 25nm, American Sigma Company).
[0031] (1) Preparation of PIPD / PBO blended fiber
[0032] A, preparation of PIPD / PPA polymer solution
[0033]Put 2,5-dihydroxyterephthalic acid, tetraaminopyridine trihydrochloride monohydrate, polyphosphoric acid and phosphoru...
Embodiment 2
[0058] Example 2: Flexural performance test of five different temporary restorations
[0059] Materials: Protemp 4 (3M ESPE, St.Paul, Minn, USA), Structur 2SC / QM (VOCO, Cuxhaven, Germany), Teilo CAD (Ivoclar Vivadent, Liechtenstein), VITA CAD-Temp (VITA, Germany), self-made temporary Repair materials, high-speed cutting machine (Buehler Isomet 4000, Germany), universal material tester (EasyTest tm EZ20, Segenworth Fareham, UK)
[0060] (1) Test piece preparation
[0061] According to the operation method in the material manual, make resin blocks of Protemp 4 and Structur 2SC / QM materials, and use an automatic delivery gun to slowly inject Protemp 4 and Structur 2SC / QM materials into a silicone rubber mold of 25mm×2mm×50mm, and inject slowly Temporary material to prevent the generation of air bubbles. The material was cured in the mold at room temperature for 15 minutes, and demolded. Then store the specimen in a water bath at (37±1)°C, and take it out after the temporary ...
Embodiment 3
[0072] Example 3: CAD / CAM Self-made Temporary Restoration Repairing Defective Teeth in Vitro
[0073] Materials: isolated mandibular molars (residual shoulder collar = 2mm), emery bur, inEos Blue raster scanner (Sirona, Germany), CEREC MC XL grinder, glass ionomer cement (Satsukaze HY-BOND)
[0074] (1) Tooth preparation of isolated teeth: use diamond burs for tooth preparation, so that the final abutment tooth convergence angle is 6°, and a 90° shoulder with a shoulder width of 1.0 mm is used.
[0075] (2) CAD / CAM temporary crown preparation: After the abutment model was evenly sprayed with powder, the inEos Blue (Sirona, Germany) blue raster scanning technology was used to optically capture the model. Clear and accurate optical impressions are guaranteed from every angle. After the optical film was taken, the Sirona inlab system was used to routinely determine the edge of the restoration and design the shape. Use the CEREC MC XL grinder to cut the self-made temporary resto...
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