The high strength, high bending strength and shear modulus of dental fiber resin columns are similar to dentin. It absorbs bite and external forces to avoid root features. Excellent biocompatibility can avoid the corrosion of root and gingival tissue. The specially treated surface is not only covered with uniform nanopores, but also covered with resin in resin pile. It can be dissolved with resin cement. It has a better bonding effect and can make the fiber resin and other restorations perfectly combined. It has good aesthetic effect, high X-ray, high transmittance, no mask; it can directly reach the top of the prosthesis. It's easier to repeat the excess because it's easy to cut and remove. All of these properties ensure the best adhesion and strength.