Abstract: A pre-fabricated, mouldable composite body, e.g. a body (12) forming elongate apertures (12, 14, 15, 16) for receiving and engaging metallic fastening means for attachment to osseointegrated fixtures. A composite polymer bridge for dental implants is manufactured by attaching suitable fastening means (10) on the abutments that penetrate the gingiva or on their replicas in a positive model (11) of the jaw and placing a mouldable body, e.g. a body (12) forming elongate apertures (13, 14, 15, 16) around these means. The mouldable body is then pressed together to collapse the elongate apertures and to fit tightly around the fastening means, whereupon the body is cured.