Related Experiment Video
Updated: Feb 28, 2026
Assessment of Spatial Lingual Tactile Sensitivity using a Gratings Orientation Test
Published on: September 17, 2021
Clinically Available Assessment Measures for Lingual and Labial Somatosensation in Healthy Adults: Normative Data and
Nicole M Etter1, Olivia M Miller1, Kirrie J Ballard2
1Department of Communication Sciences and Disorders, Orofacial Physiology & Perceptual Analysis Lab, Pennsylvania State University, University Park.
Purpose:
High-quality orofacial somatosensory inputs are essential for achieving rapid and accurate motor outputs. Little somatosensory testing is currently being completed in clinical settings. The purpose of this study is to assess the feasibility and test-retest reliability of clinical assessment tools for orofacial somatosensory testing in healthy young adults.
Method:
A total of 45 healthy young adults (ages 20-41 years) was recruited. Participants reported basic health information, completed pure-tone hearing thresholds, and were assessed using two-point discrimination discs and Von Frey hair detection and discrimination thresholds for bilateral lip and tongue. A subsample of participants (n = 18; 40%) returned to complete reliability testing.
Results:
Descriptive results are presented for the normative group as well as the reliability group. Difference scores between Tests 1 and 2 for each testing measure and location show high agreement.
Conclusion:
Two-point discrimination and Von Frey hair monofilament assessment for both detection- and discrimination-threshold estimates have high test-retest reliability in a healthy young population. These testing measures could be a way to easily complete objective somatosensory testing of the orofacial region in a clinical context.
Related Concept Videos
01:26Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
01:14Assessing Body Temperature - Oral
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...