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The functional and esthetic results of reconstructive surgery after extended total maxillectomy or extended orbital exenteration greatly depend on the quality of the orbital reconstruction. We developed dynamic eye socket reconstruction using temporalis transfer to achieve good orbital reconstruction, and examined the usefulness of our technique. Five patients (three men and two women, aged 44-72 years) who underwent extensive resection of midfacial malignancies were treated with dynamic eye socket reconstruction using temporalis transfer. In most cases, eye socket reconstruction was performed approximately 1 year after the initial surgery, and temporalis transfer was used after maturation of the eye socket. The follow-up period ranged from 16 to 120 months (average 63.8 months). Movement of the upper and lower eyelids was achieved in all cases, and definite creases at the lateral canthus were observed in two patients. A good shape in the reconstructed medial and lateral canthal areas was maintained in all patients. Our reconstruction technique is extremely effective in creating natural creases ('crow's feet') at the lateral canthus during smiling, enabling movement of the upper and lower eyelids, and maintaining a sharp palpebral morphology. [ABSTRACT FROM AUTHOR]