Prosthetic treatment after injuries involving loss of teeth may consist in replacing missing teeth with removable dentures or permanent restorations based on patient’s own teeth or on intraosseous implants. However, it is not always possible to perform an immediate implantoprosthetic reconstruction and the insertion of crowns on implants only after osseointegration has taken place is associated with the presence of missing teeth until the end of this process. The article describes the case of a 25-year-old female patient who sustained an injury to the facial part of the skull, maxillary fractures and the alveolar bone of the mandible with three teeth embedded in the fractured segment. There was also avulsion and quality damage of tooth crowns and piercing of skin layers. Four weeks after the surgery, the patient presented to have a temporary restoration in the mandible performed before the implantoprosthetic treatment planned in the future. In this case it was difficult to provide the patient with conventional temporary prosthetic plate due to miniplate osteosynthesis of the broken part of the alveolar bone. A decision was made to construct the Essex splint, which is commonly used in orthodontics as a removable retention device. In this clinical case, this solution brought many benefits and enabled the patient to function properly until the commencement of the implantoprosthetic treatment.