There were examined 130 patients to determine the nature of complications during prolonged use of fixed prosthetic constructions. The study aimed to identify the most common periodontal changes linked to these prosthetics. It also sought to show why it is necessary to improve the design of temporary dental crowns used during prosthetic treatment. This study is relevant given the increasing number of patients requiring fixed prosthetic rehabilitation and the greater demand for long-term functional and aesthetic outcomes. In order to justify the need for improved temporary dental crown design, we assessed the degree of periodontitis in patients. Examination data showed that 50 % of patients were in Stage I, with gingival atrophy up to 4 mm. The other 50 % were in Stage II, with gingival atrophy up to 5 mm. These findings indicate a significant prevalence of periodontal problems in patients receiving fixed prosthetic treatment. This highlights the importance of managing periodontal tissues carefully at each treatment stage. Early detection of periodontal changes allows timely interventions and more predictable outcomes. We’ve also examined pathological pockets. Results show that 38 % of patients were in Stage I with 1–2 mm attachment loss. Another 38 % were in Stage II with 3–4 mm loss. Only 24 % had no pockets. The high rate of pathological pockets highlights the need for preventive measures during prosthetic treatment. These measures can help minimize further periodontal deterioration. We assessed the marginal gingival mucosa and found that 71 % showed cyanosis, 68 % showed edema, and 15 % showed pastiness. Only 19 % showed no change. The prevalence of inflammation confirms that poor management of the gingival margin during prosthetic procedures increases the risk of periodontal pathology. There were analyzed the periodontal tissues of abutment teeth and referenced the literature. This led us to improve the design of the temporary dental crown. As a result, Patent No. 153365 was obtained for the utility model “Temporary Dental Crown for Gingival Margin Formation in Prosthetic Treatment with Fixed Prosthetic Constructions”. We manufacture this temporary dental crown using 3D modeling based on the shape of the prepared coronal portion of the tooth. An expansion flange is incorporated into the cervical area of the crown margin. Its thickness is calculated to displace the marginal tissues at the gingival edge by a specific distance. This design allows for monitoring of the gingival sulcus trauma and the force applied during polymerization around the tooth. This approach ensures precise control of tissue displacement and reduces the risk of iatrogenic damage. In conclusion, the improved temporary dental crown design effectively avoids trauma to the gingival margin during all stages of prosthetic treatment. It maximally preserves the integrity of the dentogingival attachment, which is essential for achieving stable and predictable long-term results. The use of 3D modeling technology ensures precise adaptation of the temporary dental crown to the individual anatomy of each patient, further contributing to treatment accuracy and comfort. Ultimately, this improved design ensures a positive, long-lasting outcome in subsequent prosthetic treatment.
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