A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . gs ofthe nose, as in retrusions of theapical zone due to inhibited de-velopment. While the diagnosisof this type is commonly con-firmed by an abnormal labial in-clination of the front teeth, thismust not be taken as a sure indi-cation of coronal protrusion orapical retrusion, because evenbodily protrusions—in which thefront teeth are supposed to stand in a normally upright position—will at times havedecided labial inclinations of the incisors, showing that surface contours of th
A practical treatise on the technics and principles of dental orthopedia and prosthetic correction of cleft palate . gs ofthe nose, as in retrusions of theapical zone due to inhibited de-velopment. While the diagnosisof this type is commonly con-firmed by an abnormal labial in-clination of the front teeth, thismust not be taken as a sure indi-cation of coronal protrusion orapical retrusion, because evenbodily protrusions—in which thefront teeth are supposed to stand in a normally upright position—will at times havedecided labial inclinations of the incisors, showing that surface contours of the facedo not necessarily follow the exact lines of the framework, but are largely regulatedby the immediate thickness of the overlying soft tissues. If the crowns of the upper front teeth are protruded to the extent of a fullwidth of a premolar, the first premolars should be extracted, unless the secondpremolars are extensively decayed. Care should be exercised in the constructionof the anchorages and the application of forces, so as not to move the back teethforward and thus use up a part of the space. 262. CHAPTER AAA/1 TYPE A. DIVISION CLASS II 263 The dento-facial correction of the disto-mesial malinterdigitation of the backteeth in this Type, which will often be found in perfect masticating occlusion,should appeal to the common sense of all orthodontists, as opposed to a reciprocalmovement of all the teeth to a normal occlusion, to say nothing about the correctionof facial outlines and the greater possibilities of permanency of retention. Fig. 183.
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