FIGURE 1.

(A) Cadaver skull measurements demonstrating that an interincisal distance of 3 cm means that the distance between the molars, where the soft-tissue constriction is usually located, is only between 1.5 and 2 cm. This is the amount of scar distraction needed to achieve an acceptable mouth opening of 3 cm. (B) A skull with the distractor positioned in the zygoma bone, 1 cm caudal of the lateral eye canthus and in the mandibular bone, lateral to the mental foramen. (C) Medical grade silicon block with the widest dimension of 3 cm to be used as a spacer between the incisors at night. Position demonstrated on a skull.