Interdental lisp

What is an interdental lisp? Marcus Little from Rapid Speech Therapy explains.
This video is used in my "Making the /s/ sound tool".
My speech sound stimulability tools can be found here: http://rapidspeechtherapy.com/tools/

• #education
• #speech_therapy
• #interdental_lisp
• #rapid_speech_therapy
• #lisps
• #speed_drills