BACKGROUND: Bariatric surgery can cause oral health problems in individuals, such as Fabricio Ferreira COELHO 3 , Paulo HERMAN 3 an increase in dental caries, periodontal diseases and dental erosion, which can be avoided if oral health promotion actions are implemented. AIMS: To assess the impact of an oral health promotion program implemented among gastroplasty patients. METHODS: This randomized clinical trial RESUMO - RLciSnLl : O tratamento de escolha para pacientes com hipertens & atilde;o portal involved 208 patients undergoing gastroplasty; they were divided into two groups: Intervention esquistossom & oacute;tica com sangramento de varizes & eacute; a desconex & atilde;o & aacute;zigo-portal mais Group, with participation in the Oral Health Promotion Program for Bariatric Patients, or Control Group. Assessments were carried out preoperatively, and six and 12 months postoperatively. The oral esplenectomia (DAPE) associada & agrave; terapia endosc & oacute;pica. Por & eacute;m, estudos mostram aumento conditions assessed were: dental caries, periodontal diseases, tooth wear, dental plaque, and salivary do calibre das varizes em alguns pacientes durante o seguimento em longo prazo. ObjetivS : flow. Sociodemographic information was obtained through application of structured questionnaires. Avaliar o impacto da DAPE e tratamento endosc & oacute;pico p & oacute;s-operat & oacute;rio no comportamento For data analysis, the Chi -Square, Fisher's Exact, and Mann -Whitney tests were performed - alpha=5%. das varizes esof & aacute;gicas e recidiva hemorr & aacute;gica, de pacientes esquistossom & oacute;ticos. M & eacute;todos: RESULTS: Patients in the Intervention Group, when compared to those in the Control Group, Foram estudados 36 pacientes com seguimento superior a cinco anos, distribu & iacute;dos em presented: fewer changes in enamel (6M: p<0.0001; 12M: p=0.001), in dentin (6M: p<0.0001; 12M: p<0.0001), moderate tooth wear (6M=0.002; 12M=0.005), gingival bleeding (6M: p<0.0001), dental dois grupos: queda da press & atilde;o portal abaixo de 30% e acima de 30% comparados com o calculus (6M=0.002; 12M: p=0.03), periodontal pocket 4-5 mm (6M=0.001; 12M: p=<0.0001); greater calibre das varizes esof & aacute;gicas no p & oacute;s-operat & oacute;rio precoce e tardio al & eacute;m do & iacute;ndice de recidiva reduction in the bacterial plaque index (6M: p<0.0001; 12M: p<0.0001), and increased salivary flow hemorr & aacute;gica. ResultLdSs (6M: p=0.019). CONCLUSIONS: The oral health promotion program had a positive impact on the esof & aacute;gicas que, durante o seguimento aumentaram de calibre e foram controladas com prevention and control of the main problems to the oral health of the gastroplasty patients.