Masticatory function, nutritional status and oral health in individuals after treatment of head and neck cancer The head and neck cancer can cause consequences to individuals, as losses in oral health and mastigatory function due to the location of the tumor our the treatments, difficulting food intake so, therefore cause malnutrition and losses in quality of life, even after end of treatment. The aim of the present study is checking the relation between the mastigatory function, with nutritional status, with oral health and with quality of life in oral health, in individuals after of head and neck cancer treatment. The sample consisted of 20 individuals that attended the criteria of inclusion and exclusion, through the surface electromyography (EMGs) of mastication muscles, masseter and temporal was performed during unilateral chewing; the nutrition status, with weight, height, Body Mass Index (BMI), skinfold thickness, dietary assessment, through the 24-hour dietary recall; the oral health assessment, DMF index, community periodontal index (CPI) and assessment of the use and need of a prothesis; the quality of life with questionnaire Oral Health Impact Profile (OHIP-14). The EMGs showed of the masticatory function in the test of Maximum voluntary teeth clenching (MVC), values of 100% for a perfect symmetry of muscle activity, 9,07% for the absence of masticatory muscle data and index for the temporal muscle had prevalence of temporal muscles. Unilateral chewing showed asymmetrical standard in chewing asymmetrical between the muscles masseter and temporal to chewing on the left side and predominance of working-side. The anthropometric evaluation indicated 20% malnutrition and 45% overweight in BMI, whereas the CB indicated 15% overweight and 40% some degree of malnutrition, confirmed in CMB. The body fat 20% were a lot below and 30% above recommended. Dietary assessment showed that carbohydrate, protein and lipid were adequate with 70%, 90% and 60% respectively. The patients showed adequate intake: iron, phosphorus, zinc, vitamin B12 and E, the higher intake of sodium and magnesium, and lower intake of, potassium, calcium, selenium, vitamin D, A and C. The oral health assessment indicated that 55% were lower and 45% a lot lower caries activity, 50% with gingival bleeding, 60% stone and 35% periodontal pocket of 4-5 mm, 35% and 40% needed the use some type of superior and inferior prosthesis, respectively. The OHIP-14 indicated weak impact of quality of life in oral health to 55% of sample. Had correlated between lower intake of fat, higher symmetry of muscle activity in chewing. The oral health, how lower the need the prosthesis inferior and how lower carie activity higher symmetry of muscle activity in chewing, while higher need of prosthesis indicated in more masticatory cycles. Therefore, after end of treatment of head and neck cancer was found consequences in mastication, nutritional status, food intake and oral health, existed relation between muscle activity during the masticatory function the dietetics an...