The influence of occlusal condition at the onset of temporomandibular dysfunction (TMD) has been strongly debated for many years. Occlusal disharmony has often corrected by selective grinding in occlusally sensitive patients with pain or dysfunction of muscular origin. This procedure should be preceded by the splint therapy in order to test the occlusal changes. The objective of this case report was to evaluate specific conservative treatment of TMD by occlusal adjustment using selective grinding in an anterior open bite patient. A 39-year-old male patient presented for a TMD treatment consultation, with symptoms such as anterior open-bite and characterized by left and right temporomandibular joint (TMJ) pain during mouth opening, complained of difficulty in eating due to masticatory dysfunction, audible joint sounds and reciprocal clicking. The treatment plan involved selective grinding procedure of the mandibular posterior teeth. After the selective grinding approach, acceptable intercuspation of the posterior teeth were achieved. Occlusion remained stable with normal function.