Mandible articulates with the cranium via the TMJ. All the components of the TMJ, including the TMJ disc, seem to be associated with altered characteristics of the craniofacial complex and its growth. However, the exact role of the TMJ disc thickness during the process of the facial growth is not clear yet. Aim: The aim of this study is to investigate the association between the TMJ disc thickness and the facial growth determined according to Jarabak in adult male subjects with no clinical or MRI symptoms of Temporomandibular Joint Disorders.