A Pilot Study of the Waterless Empirical Taste Test

Area of Science:

• Sensory science
• Clinical diagnostics
• Oral medicine

Background:

• Assessing taste function is crucial for diagnosing and managing oral conditions.
• Conventional taste tests can be time-consuming and resource-intensive.
• A novel waterless empirical taste test (WETT) was developed to address these limitations.

Purpose of the Study:

• To evaluate the clinical applicability and reliability of the waterless empirical taste test (WETT).
• To compare WETT results with a conventional solution-based whole-mouth suprathreshold taste test (WMTT).
• To assess WETT's ability to differentiate taste perception between healthy individuals and oral cancer patients.

Main Methods:

• Sixty healthy volunteers and 20 oral cancer patients participated.
• Both WETT (using embedded taste strips) and WMTT (using solutions) were administered.
• Retest reliability of WETT was assessed, and case-control matching compared WETT and WMTT scores between groups.

Main Results:

• WETT showed high retest reliability (intraclass correlation coefficient = 0.85).
• Correlation between WETT and WMTT was not high (r < 0.7).
• WETT scores were significantly lower in oral cancer patients compared to healthy volunteers (P = 0.017).

Conclusions:

• WETT demonstrates high test-retest reliability.
• WETT effectively distinguishes taste perception deficits in oral cancer patients.
• While not highly correlated with WMTT, WETT shows clinical potential for taste assessment.