Complete anterior disc displacement without reduction constitutes a morphological and functional alteration of the temporomandibular joint. In this paper, a conservative treatment approach without an attempt at reduction is described. The primary treatment objective is the acute relief of the bilaminar zone structures and the long-term reconstructive stabilization of the therapeutically altered mandibular position. Keywords: complete anterior disc displacement without reduction, decompression splint, therapeutic mandibular position, adhesively cemented composite resin restorative structure, occlusal plate, definitive reconstruction