Fig. 1From: Comparison of two 3D scanning software to identify facial features: a prospective instrument to predict difficult airwayManikin head illustrating the measurements performed on each facial scan. a Ear tragus to lip corner distance. b Nose-tragus-lip. c Mandible angle. d Nose bottom to chin distance. e Nose bottom to upper lip distance. f Upper to lower lip distance. g Lower lip to chin distance. h Lip horizontal lengthBack to article page