Videofluoroscopic evaluation of mastication and swallowing in individuals with TMD.

UNLABELLED: To study mastication and swallowing disorders in patients with temporomandibular disorders (TMD). OBJECTIVE: To investigate mastication and swallowing disorders in patients with severe TMD referred to surgery. MATERIALS AND METHODS: Clinical and experimental study involving ten individuals with TMD submitted to deglutition videofluoroscopy. These patients did not have posterior teeth, mastication pain and food replacement in favor of pasty consistence food. The assessment of the oral and pharyngeal phases approached the following aspects: side of onset and preferential side for chewing, premature escape, remains of food residues in the oral cavity or in the pharyngeal recesses, number of necessary swallowing efforts, laryngeal penetration and/or tracheal aspiration. RESULTS: During mastication and the oral phase we observed tongue compensatory movements upon chewing (n = 7; 70%), premature escape (n = 4; 40%), food remains in the cavity after swallowing (n = 5; 50%) and an excessive number of deglutition efforts (n = 5; 50%). On the pharyngeal phase we observed food remains in the valleculae (n = 6; 60%), in the pyriform sinuses (n = 4; 40%); laryngeal penetration (n = 1; 10%) and tracheal aspiration (n = 4; 40%). CONCLUSION: TMD patients may have alterations in their chewing and swallowing patterns, with laryngeal penetration and/or tracheal aspiration. The study indicates the need for a multidisciplinary assessment because of dysphagia in TMD patients.

Avaliação videofluoroscópica da mastigação e deglutição em indivíduos com disfunção temporomandibular (DTM) / Videofluoroscopic evaluation of mastication and swallowing in individuals with TMD

Estudar os distúrbios da mastigação e deglutição na Disfunção Temporomandibular (DTM). OBJETIVO: Investigar as disfunções de mastigação e deglutição na DTM em grau grave, com indicação cirúrgica. MATERIAIS E MÉTODOS: O estudo clínico e experimental verificou dez indivíduos com DTM, submetidos à videofluoroscopia da deglutição. Verificou-se ausência de dentes posteriores, dor em músculos da mastigação e substituições de alimentos, privilegiando-se consistências pastosas. A avaliação das fases oral e faríngea abordou os seguintes aspectos: lado de início e lado preferencial para mastigação, escape prematuro, permanência de resíduos alimentares na cavidade oral e recessos faríngeos, número de deglutições necessárias, presença de penetração laríngea e/ou aspiração traqueal. RESULTADOS: Durante a mastigação e fase oral, observaram-se movimentos compensatórios de língua à mastigação (n = 7; 70%), escape prematuro (n = 4; 40%), resíduos na cavidade após a deglutição (n = 5; 50%) e número excessivo de deglutições (n = 5; 50%). Na fase faríngea, observou-se permanência de resíduos em valécula (n = 6; 60%), resíduos em seios piriformes (n = 4; 40%); penetração laríngea (n = 1; 10%) e aspiração traqueal (n = 4; 40%). CONCLUSÃO: Pacientes com DTM podem apresentar alterações nos padrões de mastigação e deglutição, com penetração laríngea e/ou aspiração traqueal. O estudo indica a necessidade de avaliação multidisciplinar devido à presença de disfagia em pacientes com DTM.

To study mastication and swallowing disorders in patients with temporomandibular disorders (TMD). OBJECTIVE: To investigate mastication and swallowing disorders in patients with severe TMD referred to surgery. MATERIALS AND METHODS: Clinical and experimental study involving ten individuals with TMD submitted to deglutition videofluoroscopy. These patients did not have posterior teeth, mastication pain and food replacement in favor of pasty consistence food. The assessment of the oral and pharyngeal phases approached the following aspects: side of onset and preferential side for chewing, premature escape, remains of food residues in the oral cavity or in the pharyngeal recesses, number of necessary swallowing efforts, laryngeal penetration and/or tracheal aspiration. RESULTS: During mastication and the oral phase we observed tongue compensatory movements upon chewing (n = 7; 70%), premature escape (n = 4; 40%), food remains in the cavity after swallowing (n = 5; 50%) and an excessive number of deglutition efforts (n = 5; 50%). On the pharyngeal phase we observed food remains in the valleculae (n = 6; 60%), in the pyriform sinuses (n = 4; 40%); laryngeal penetration (n = 1; 10%) and tracheal aspiration (n = 4; 40%). CONCLUSION: TMD patients may have alterations in their chewing and swallowing patterns, with laryngeal penetration and/or tracheal aspiration. The study indicates the need for a multidisciplinary assessment because of dysphagia in TMD patients.