Bruxism is a pathological activity of the stomatognathic system that involves 
tooth grinding and clenching during parafunctional jaw movements. Clinical signs 
of bruxism are mostly related to dental wear and muscular and joint discomforts, 
but a large number of etiological factors can be listed, as local, systemic, 
psychological and hereditary factors. The association between bruxism, feeding 
and smoking habits and digestive disorders may lead to serious consequences to 
dental and related structures, involving dental alterations (wear, fractures and 
cracks), periodontal signs (gingival recession and tooth mobility) and 
muscle-joint sensitivity, demanding a multidisciplinary treatment plan. This 
paper presents a case report in which bruxism associated with acid feeding, 
smoking habit and episodes of gastric reflow caused severe tooth wear and great 
muscular discomfort with daily headache episodes. From the diagnosis, a 
multidisciplinary treatment plan was established. The initial treatment approach 
consisted of medical follow up with counseling on diet and smoking habits and 
management of the gastric disorders. This was followed by the installation of an 
interocclusal acrylic device in centric relation of occlusion (CRO) for 
reestablishment of the occlusal stability, vertical dimension of occlusion, 
anterior guides and return to normal muscle activity (90-day use approximately). 
After remission of initial symptoms, oral rehabilitation was implemented in CRO 
by means of full resin composite restorations and new interocclusal device for 
protection of restorations. Satisfactory esthetics, improved function and 
occlusal stability were obtained after oral rehabilitation. The patient has 
attended annual follow-ups for the past 2 years. The multidisciplinary treatment 
seems to be the key for a successful rehabilitation of severe cases of dental 
wear involving the association of different health disorders.