<prompt> Amount of pressureForce exerted by Lip on maxillary Incisors?10-15 gmcm220-25 gmcm225-30 gmcm230-35 gmcm2  <response>: The average resting lip pressure was 24.59 2.55gcm2; during swallowing was 24.87 2.45 gcm2.Ref: According to 2011, January American Journal of Orthodontics Vol.139, Issue 1, page e1-e6 