This study was designed to compare the transmissivity of ultrasonic energy through Feldene gel, Bengay ointment, shea butter, and honey with that of Aquasonic gel . The subjectsfor the Study were eight normal undergraduate students aged 21-24 years. The pre-insonation skin temperature in the mid-anterior aspect of the subjects' thighs was recorded. The selected area was then insonated for two minutes using the continuous, direct contact method and the post-insonation skin temperature was recorded using a skin thermometer. The difference between the pre- and post-insonation skin temperatures was used as an index of transmissivity. The transmissivity of each of the studied coup/ants was compared to that of Aquasonic gel using the independent t-test. All the coup/ants were farther compared using one-way ANOVA at a =0.05 level. There was no significant difference between the transmissivity of the coup/ants though the transmissivity of all the studied coup/ants appeared   to be  hisher  than  that  of Aquasoni"   gel. It was concluded  that honey could  readily be substituted for Aquasonic gel based on its availability, therapeutic value and variation in temperature change close to that of Aquasonic gel.

 

Key  words: Transmissivity, phonophoresis, couplants.