Large taper root canal filling methods mainly include lateral compression filling technique and vertical compression filling technique. 1. Lateral pressurization filling technique is a method of placing a primary gum tip of the same size as the primary tip file into the root canal, pressurizing it with a lateral pressurizer, and then inserting a secondary tip, and so on, until the root canal is tightly filled. In clinical practice, there are many variations of the lateral compression filling technique, such as the use of solvents to soften the primary tip to make it more adaptable to the anatomical morphology of the apical region. 2. Vertical pressure filling technique is characterized by heating the root filling material in the root canal to soften it, and then by applying pressure vertically in the apical direction, the filling material is induced to fill the anatomical zones of the root canal more densely, thus achieving the effect of tightly sealing the root canal. It is recommended to consult a specialized doctor for details.