A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . incisor is obsolete. When the labial arch is properly expanded, the incisors canbe usually aligned by very simple methods. In those cases where the dental arches are not complicated with a varietyof malpositions, the apparatus may be simplified as shown in Fig. 238, which doesaway with the need of the special labial appliances. The No. 18 distributing barsattached to the incisors rest in open-tube cuspid and molar attachments. Again,in those cases where the front teeth are not g
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . incisor is obsolete. When the labial arch is properly expanded, the incisors canbe usually aligned by very simple methods. In those cases where the dental arches are not complicated with a varietyof malpositions, the apparatus may be simplified as shown in Fig. 238, which doesaway with the need of the special labial appliances. The No. 18 distributing barsattached to the incisors rest in open-tube cuspid and molar attachments. Again,in those cases where the front teeth are not greatly malposed, they can usually bebrought to alignment by the aid of an alignment bow with ligatures, etc., after thearches have been sufficiently expanded with the expanding appliance. In all casesof malalignments with crowded arches, the foundation principle of correction liesin first making room for the malposed teeth in the arch, after which the rest of theoperation is comparatively easy. CHAPTER XLVII. CROWDED MALALIGNMENTS 337 Fig. 240. Drop Jack.—In the irregularity shown in Fig. 239, the right premo
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