Fig. 2From: External root resorption and rapid maxillary expansion in the short-term: a CBCT comparative study between tooth-borne and bone-borne appliances, using 3D imaging digital technologyColour-coded labelling of T0 and T1 tooth models: maxillary first premolar (P1), maxillary second premolar (P2) and maxillary first molar (M1)Back to article page