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Exploring quantitative methods for evaluation of lip function
L Sjögreen1, A Lohmander, S Kiliaridis
1Mun-H-Center Orofacial Resource Centre for Rare Diseases and Division of Speech and Language Pathology, Institute of Neuroscience and Physiology, Sahlgrenska Academy at the University of Gothenburg, Switzerland. lotta.sjogreen@vgregion.se
Journal of Oral Rehabilitation
|October 26, 2010
Summary
Quantitative methods reliably measure lip mobility and force, correlating with functional abilities like speech and eating. These findings support assessing lip function for potential therapeutic interventions.
Area of Science:
- Biomedical Engineering
- Neurology
- Speech-Language Pathology
Background:
- Assessing lip function is crucial for diagnosing and managing conditions affecting facial muscles.
- Current qualitative assessments may lack objective quantification, limiting diagnostic precision.
- Quantitative methods for lip mobility and force measurement require validation against functional outcomes.
Purpose of the Study:
- To explore and validate quantitative methods for measuring lip mobility and force.
- To correlate quantitative lip function measurements with qualitative assessments of speech, eating, and saliva control.
- To propose normative data and diagnostic cut-off values for lip mobility and force in adults.
Main Methods:
- Employed computerized 3D analysis for lip mobility and a lip force meter for quantitative measurements.
- Included 50 healthy adults and 23 adults with facial muscle disorders (Möbius syndrome, FSHD, DM1).
- Correlated quantitative data with qualitative assessments of lip function, articulation, eating, and saliva control.
Main Results:
- Significant correlations were found between quantitative measurements and qualitative assessments.
- Proposed cut-off values effectively identified moderate to severe lip mobility impairments.
- The instruments demonstrated reliability with acceptable measurement error.
Conclusions:
- Quantitative measurement systems for lip mobility and force are reliable and correlate with functional abilities.
- The combination of quantitative and qualitative assessments provides a comprehensive evaluation of lip function.
- These validated methods can be used to assess the efficacy of future oral motor interventions for lip function improvement.
