Abstract
Purpose: This case report describes comprehensive prosthetic treatment performed on a patient with crossbite who declined orthognathic surgery. Methods: Following a diagnostic wax-up, full-arch provisional restorations were fabricated. The jaw position, occlusal plane, and vertical dimension of the bite were adjusted using facebow transfer and electronic mandibular movement recording. To address underlying functional issues, oral myofunctional therapy̶including tongue posture guidance, deglutition training, and nasal breathing instruction̶was implemented. Pre-prosthetic partial orthodontics addressed anterior crowding. For the final restoration, a telescopic denture system was selected to ensure long-term predictability and functional stability. Results: Improvement in occlusal function, facial esthetics, and oral perioral muscle function was achieved without surgical intervention. Functional improvement was confirmed by post-treatment evaluation using a mandibular movement analyzer. Conclusion: This case demonstrates that comprehensive prosthetic treatment, combining mandibular movement analysis and oral muscle function therapy, can serve as an effective alternative when surgical interventions are not applicable.
