残存乳歯を伴う完全無歯症の補綴的管理

Congenital absence of permanent teeth, or anodontia, is a rare developmental anomaly, and isolated anodontia with retained deciduous teeth is even more uncommon. This report describes the prosthodontic management of a 16-year-old female diagnosed with nonsyndromic familial anodontia who presented with retained primary teeth and complete absence of permanent tooth buds. A fixed interim prosthesis was planned to restore oral function, improve facial esthetics, and support psychosocial well-being. Full-mouth impressions were made, and a heat-cure acrylic resin prosthesis was fabricated, using the remaining deciduous teeth as abutments for retention. Standard prosthodontic procedures-including diagnostic mounting, facebow transfer, centric relation recording, and final impressions-were followed to ensure optimal fit and function. The patient exhibited excellent adaptation to the prosthesis, with noticeable improvement in mastication, speech, and facial appearance. Significant psychological benefits were also observed, including enhanced social interaction and increased self-confidence. Follow-up evaluations revealed no major complications, and the prosthesis remained stable and functional. This case highlights that fixed interim prostheses offer an effective, minimally invasive solution for adolescents with anodontia, providing functional, esthetic, and psychological benefits until they reach skeletal maturity and become candidates for definitive long-term rehabilitation.