The relationship between oral stereognosis and functional measures of swallowing (2020)
Type of ContentTheses / Dissertations
Degree NameMaster of Science
PublisherUniversity of Canterbury
AuthorsHolland, Georgiashow all
Objectives: Sensation is necessary for safe and efficient swallowing. There are currently few techniques used for the assessment and improvement of oral sensory function. Oral stereognosis (OS) has been proposed as an assessment of oral sensation. OS is the ability to recognise and discriminate shapes in the oral cavity. The first objective of this study was to explore the impact of stimulus size on oral stereognostic ability (OSA). The second objective was to determine whether any significant correlations exist between OSA and functional assessments of swallowing.
Methods: Fifty healthy participants, with no swallowing difficulties, aged 55 years and older were recruited. Participants completed an assessment of OS, the Test of Mastication and Swallowing Solids (TOMASS) and the Timed Water Swallowing Test (TWST). Participants were required to identify twenty different shapes in their mouths in three sizes. A one-way MANOVA was used to determine the effect of stimulus size on OSA. Pearson’s correlation coefficient determined the relationship between OSA and measures from the TOMASS and TWST.
Results: Larger shapes had a higher identification score and shorter response time than smaller shapes. Significant correlations were found between OS score and response time and measures of the TOMASS and TWST
Conclusion: Several conclusions from this study can be drawn. Firstly, stiumulus size effects OSA in healthy adults. Secondly, OSA is significantly correlated to several measures from the TOMASS and TWST. This may suggest that OSA may be indicative of oral phase efficiency in swallowing.