With open mouth behavior and mouth breathing, the strength of the orbicularis oris muscle is insufficient. Whether that force is (in) sufficient can be measured with the Force scale. To strengthen a flaccid orbicularis oris muscle, in addition to the various lip-strengthening exercises for this, the OMFT regularly uses masking of the lips with a lip plaster. This can be done with various techniques and materials, such as Omnifix or Fixomull stretch, Leukopor, Myotape and kinesio taping, for which Cure tape is usually used. Kinesiotape stimulates hypotonic muscles and inhibits hypertonic muscles: the skin is lifted, which affects the function of the underlying muscles.
To influence the orbicularis oris muscle, the Cure tape is applied with 10–20% stretch, so that it has an activating effect on the orbicularis oris muscle. The client feels the muscle contract, causing the lips to close. Yet there is the possibility to open the mouth and speak. This way of kinesio taping can be used while sleeping and during the day.