Fiber - reinforced composite materials consist of fibers and organic matrix, and they have better physical - mechanical properties compared to conventional composite materials. The purpose of this thesis is to present the procedure of fabrication of fiber reinforced composite bridges and to describe the indications, possibilities and limitations of this treatment option. Two clinical cases were presented with a fiber reinforced composite bridge fabricated using a direct method, in one visit. The palatal surface of the abutment tooth was etched with orthophosphoric acid for 60 seconds, then rinsed thoroughly with water and dried with a sterile cotton pellet.. GPremio Bond adhesive (GC, Tokyo, Japan) was applied and polymerized using a LED curing lamp (> 500 mW / cm2) for 20 seconds. Preparation was performed on the palatal surface of the crown that would be used to replace the missing tooth, then adhesive was applied o the surface and it polymerized with a curing lamp. The required length of the fiber (everStick C&B, GC, Tokyo, Japan) was determined. Afterwards, flowable composite G-aenial Universal Injectable (GC, Tokyo, Japan) was placed on the palatal surface of the adjacent tooth and in the prepared groove on the palatal surface of the selected crown. The fiber was placed into the groove of the crown, adjusted using fingers to the adjacent tooth and polymerized with a curing lamp. In the end, the fiber reinforced composite bridge was finished and premature contacts were removed. Fiber-reinforced composite bridges can be used in order to aesthetically and functionally replace a missing tooth in the anterior or posterior region. These bridges can serve as a temporary or longterm treatment option which is in accordance with the philosophy of minimal intervention because it is possible to place this bridge without any preparation of adjacent teeth or by performing minimally invasive preparation.