Explanation

The materials used to copy the female mold (impression) of oral tissue into the male mold of oral tissue morphology. According to the purpose of clinical use, the male mold of oral tissue is divided into model and mold. The materials used are called working die pharynx materials and mold materials respectively. They are used as model materials for making prosthesis and lower model of orthotics (or studying model) and substitute. The mold made with them can accurately reflect the anatomy of oral tissue under long-term preservation. Therefore, this materials should have the characteristics of good flow ability, good matching performance with female mold materials, stable volume during solidification, proper solidification time, wear resistance, etc. The commonly used T materials for model include gypsum, artificial stone, low melting alloy, materials for electroplating and epoxy resin materials. Mold materials is used to make the initial product of prosthesis, which should have the characteristics of stable volume, easy sculpture, easy removal, and easy volatilization without residue when heated. The commonly used mold materials is mainly foundry wax, which is composed of paraffin wax (60%), palm wax (25%), paraffin wax (10%), refined beeswax (5%) and trace pigment. It can be used to make mold directly from the mouth or indirectly through working model and molds.

Classification