Objectives: The impairment of the temporomandibular joint and masticatory muscles has a negative impact on functions of the stomatognathic system, such as swallowing. Thus, an atypical swallowing pattern may contribute to the development of temporomandibular disorder (TMD). The aim of the present study was to evaluate acoustic aspects of swallowing and determine the occurrence of atypical swallowing dynamics. Methods: Sixty-two individuals [16 males (25.8%) and 46 females (74.2%); mean age 39.84 (± 9.40); 47 with TMD and 15 without TMD] were evaluated using an ultrasound detector during the swallowing of three consistencies: liquid, pasty and solid. The acoustic signals were recorded and subsequently analyzed using the DeglutiSom® software. Results: The majority of the sample (81%) with TMD presented atypical swallowing biodynamics, with a significantly greater frequency of food residuals for the three consistencies. The signal suggestive of aspiration was more frequent with the liquid consistency (37% of the group). Conclusion: There is a relation between TMD and an atypical swallowing pattern, which underscores the need for the multidisciplinary evaluation of individuals with this disorder.

Objective: To measure the accuracy of DeglutiSom as an auxiliary method to assess swallowing in patients with Parkinson's disease (PD). Methodology: Accuracy study. Among 248 individuals, 91 participants met the inclusion criteria, with a mean age of 64.9 years (SD 7.7), 53.8% male and 46.2% female, with a mean disease duration of 12.6 years (SD 3.8 years). Two instrumental studies were performed: An acoustic analysis with Sonar Doppler via the DeglutiSom Software, and a videofluoroscopic swallow study. Three judges analyzed the swallowing sounds in the DeglutiSom software and the instrumental examination findings. Results: The inter-rater reliability was 90.1%, with 4.4% degree of partial agreement and 5.5% disagreement. Sensitivity resulted in 90.0% and specificity in 90.0%. A sensitivity of 97.0% and specificity of 91.0% are indicators of a high validity for the dysphagia screening method, with predictive value (+) of 97.0% and predictive value (-) of 91.0%, with an accuracy method of 96.0%. The validity indicator values for screening aspiration were also high, with a sensitivity of 90.0%, specificity of 90.0%, predictive value (+) of 82.0%, predictive value (-) of 95% , 0% and 90.0% accuracy. Conclusion: The method proposed is considered appropriate for oropharyngeal dysphagia and tracheal aspiration screening in patients with Parkinson's Disease.

Objective: To define the acoustic parameters and the feasibility of using swallowing acoustic analysis as an auxiliary method for the transition from nasogastric or orogastric tube feeding to oral breastfeeding. Methodology: A cross-sectional study, which consisted of the following steps: 1. Data collection: Thirty-two newborns participated in this study (16 preterm and 16 full-term); 2. Clinical speech-language pathology evaluation: Clinical data were collected using Sonar Doppler used to assess the readiness of preterm infants to start oral feeding and swallowing sounds. Swallowing sounds were captured during breastfeeding and analyzed according to the frequency, intensity, and time of swallowing, as well as the pause time between swallows and the number of swallows. Results: The control and study groups presented significant differences in the mean wave time and swallowing per minute variables. Conclusion: Sonar Doppler, as an instrument used to capture sounds, is a viable auxiliary resource to evaluate the transition from nasogastric or orogastric tube to oral breastfeeding.

Introduction: The emergence of COVID-19 has given rise to research on possible consequences on swallowing and on the quality of swallowing in individuals who were infected by SARS-CoV2. Pulmonary infections, the need for orotracheal intubation, tracheostomy, symptoms, comorbidities, and other factors caused uncertainties about the interference of these factors in the function of swallowing and in quality of life. Objective: To verify the association between the prevalence of swallowing disorders and the quality of life of patients with possible risk factors infected with COVID-19. Methods: This is an observational, analytical, cross-sectional, quantitative study. It was carried out from August to September 2020, in a Hospital in Brasília – DF, with patients hospitalized due to COVID-19 infection. 90 individuals participated in this study; they were adults and elderly with a mean age of 59.9 ± 16.09. Among participants, 55 were men (61.1%) and 35 were women (38.9%) who had a history of swallowing disorders. Data were collected through the analysis of patients' medical records, application of the EAT-10 Test, and the Quality of Life in Swallowing Disorders (SWAL-QOL) validated for Brazilian Portuguese. Results: Considering the scores obtained by the EAT-10 questionnaire, the analysis showed a statistical significance for the variables senescence and tracheostomy (p < 0.05). The analysis of the SWAL-QOL test was performed by domains and showed a statistical significance between the variables senescence, tracheostomy, ageusia, anosmia, and hyporexia. Conclusion: Elderly people infected with COVID-19 and in need of tracheostomy have a greater chance of dysphagia. In addition, factors such as senescence, tracheostomy, age and hyporexia can improve the quality of swallowing in these patients.