It is mainly applied to the tooth reconstruction technique on the root of the tooth in case of large tooth loss caused by trauma and caries. Fiberglass piles + resin cores make up the fiberglass piles. Compared with ordinary metal piles, fiber piles are corrosion-resistant and biocompatible, with milky-white or transparent appearance similar to the optical effect of natural teeth and thus more beautiful. The modulus of elasticity of fiberglass piles is similar to that of dentin, which is 21GPa, and thus has a high degree of convergence with dentin in terms of transfer of force, which avoids the concentration of stress in metal piles that makes it easy to fracture the root. Glass Fiber Pile: E-Glass non-crystalline glass fiber + epoxy resin matrix. Indications for fiber piles: no need to change the angle of the tooth; root canals are thin, round and regular; the remaining gingival tooth tissue is more; the root canal wall is thin and funnel-shaped; the proposed all-ceramic crown restoration. The steps of the operation included: first, according to the requirements of the abutment full crown preparation, prepare the final expected form except the shoulder table; based on the measured length of the X-ray film, use the No. 1 peeso reaming drill, removing the cementum up to the predetermined depth. The root canal was enlarged by replacing the No. 2 P-drill. Prepare the root canal step by step from fine to coarse using a special enlarging drill for fiberglass stumps. Introduction of acid etching agent, water rinsing of the root canals to apply dentin bonding agent, placement of resin bonding agent, introduction of spiral filler, placement of fiber post and light curing treatment. Patient painlessness, short operation time, aesthetic appearance and root protection are the biggest advantages of fiberglass staking technique. In the dental clinic there are a lot of patients due to untimely treatment, dental caries, corrosion of only the root of the tooth, there are young patients due to accidents, fall and injury to the front teeth or fights and injuries to the incisors and lateral teeth, teeth damaged serious crown fracture, only the root of the teeth left in the mouth, we can carry out the pile core crown restoration, the traditional metal core, due to its strength is much greater than the root of our own teeth, in the bearing of a larger biting force, it is easy to cause the force concentrated in the root of the teeth, and the root is the most important factor for the restoration. It is easy to cause the force is concentrated in a part of the tooth root, and cause the patient’s own tooth root fracture, shortening the life of the restoration denture; In addition, if the patient needs to do the head of the MRI or CT examination, the presence of metal will seriously interfere with the results of the inspection and imaging, and the metal pile and artificial crowns compared to take out again is very difficult; there is a metal pile once fractured, the root of the tooth can only be extracted, while the fiber pile nucleus is subject to The fiber core is fractured by external force, easy to carry out secondary repair; due to material reasons, fiber core on the restoration of all-ceramic dentures are more beautiful, popular with young people who love beauty. In addition, this is a great blessing for patients with severe metal allergies. Some patients say, “Dr. Ma, how many times do I need to come in for fiberglass denture repair, I am very short of time and usually quite busy? “Fiberglass staking can be completed once in the mouth, immediately can take the mold, making temporary crown, and then a follow-up visit, wearing artificial crown is OK; while the traditional metal casting staking, it requires three visits to complete. This reduces the number of visits and saves the patient’s time.” The doctor replied. Other patients ask how long the fiberglass piles last. Is it easy to break when subjected to greater occlusal forces because of its low strength compared to metal piles? “It should be said that fiberglass piles also have their strict indications, in the case of ensuring the dentin shoulder collar of the abutment teeth at a height of 1.5mm, together with the standardized self-adhesive resin bonding operation, as with metal piles and cores, the service life of the restorations is generally more than 8 years.”