Material for forming mineral substance in dentinal tubule by use of delayed reaction and application of material
A technology of dentin tubules and delayed response, which is applied in dentistry, dental preparations, dental prostheses, etc., can solve the problems affecting the long-term curative effect of sealant, and achieve the effect of favorable curative effect of sealant, long retention time, and promotion of formation
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[0032] Methods: 3 human premolars with intact crowns, no caries and cracks were selected from the Department of Oral and Maxillofacial Surgery of the School of Stomatology, Capital Medical University, freshly extracted for orthodontics (the patient gave informed consent, and the residual soft tissue on the root surface was removed with a curette after extraction, 4 ℃ physiological saline and stored for later use, the time shall not exceed 4 weeks), the root of the tooth was embedded with self-setting resin, the enamel of the occlusal surface was ground to expose the dentin, and it was used as a test piece for later use.
[0033] Equipment: scanning electron microscope (Phenom proX, Phenom-World B.V., Netherlands), metallographic sample pre-grinding machine (YM-2A, Shanghai Metallographic Machinery Equipment Co., Ltd.), low-speed cutting machine (Isomet 4000Linear Precision Saw, Buehler, USA) ;
[0034] Materials: self-curing methyl methacrylate base resin (Shanghai Medical Ins...
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