A teenage patient presented at the Prosthetics Department with an injury - complete dislocation of the two upper central incisors. This traumatic episode was sustained three months previously during a PE class. Before the replantation procedure, diagnostic X-rays of the area of teeth 21, 11 were performed. Tooth 11 was replanted, while tooth 21 was not found. After a period of two weeks, a follow-up OPG radiograph was taken, which showed an extensive cyst in the left mandibular branch, extending from the mandibular angle to the mandibular notch. A two-stage surgical treatment was implemented. The article describes the treatment plan and the implemented long-term temporary prosthetic treatment. In this case, a composite bridge reinforced with glass fiber of an unconventional structure was made, in which the preparation of hard tooth tissues was limited to the necessary minimum. The access cavity in the adjacent tooth served as a retentive and abutment element. The patient’s case is challenging due to the uncertain prognosis of the replanted tooth, the limited interdental space and the simultaneous treatment of the present follicular cyst.