. The science and practice of dental surgery. Fig. 229.—Inferior retrusion. Post-normal occlusion (one unit) ofdeciduous arch in very young patient. (Harold Chapman.) from a consideration of the teeth themselves, isinteresting as affording an additional explana-tion to that derived from insufficient mandi-bular development about the angle and has also drawn attention to thepossibility of faulty occlusion occurring as a5 * Fig. 230.—Inferior retrusion and secondary proclination of upper deciduous arch post-normal (one unit), molars also lingual.(Harold Chapman.


. The science and practice of dental surgery. Fig. 229.—Inferior retrusion. Post-normal occlusion (one unit) ofdeciduous arch in very young patient. (Harold Chapman.) from a consideration of the teeth themselves, isinteresting as affording an additional explana-tion to that derived from insufficient mandi-bular development about the angle and has also drawn attention to thepossibility of faulty occlusion occurring as a5 * Fig. 230.—Inferior retrusion and secondary proclination of upper deciduous arch post-normal (one unit), molars also lingual.(Harold Chapman.) the upper mcisors erupted first and exhibited an abnormal alignment, almost certainly inherited with the edges directed unduly backwards, instead of vertically. A post-normal occlusion of the entire lower arch followed almost of necessity from thLs condition (see Figs. 234,235). The proper treatment for such a case is plainly to correct the deciduous upper incisors before the age of six, and at least afford an opportunity, with the wea


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19