. The science and practice of dental surgery. n this ?\\ay thecheek muscles are brought into play andpressure is broutrht to bear on the is urged that lateral compression andanterior prolongation are induced in thismanner, and that the effect is exhibited ev^enin the permanent dentition. G. Northcroft(122), who has studied with much care thedevelopment of the jaws in early years, findsa remarkable similarity in the type ofdeciduous arch (with in-standing laterals andcentrals in malalignment) in many bottle-fed children (see Figs. 123. 124). f. Pedley(127) is a strong advocate for th
. The science and practice of dental surgery. n this ?\\ay thecheek muscles are brought into play andpressure is broutrht to bear on the is urged that lateral compression andanterior prolongation are induced in thismanner, and that the effect is exhibited ev^enin the permanent dentition. G. Northcroft(122), who has studied with much care thedevelopment of the jaws in early years, findsa remarkable similarity in the type ofdeciduous arch (with in-standing laterals andcentrals in malalignment) in many bottle-fed children (see Figs. 123. 124). f. Pedley(127) is a strong advocate for view, andColyer (55) has published diagrams showingthe association of abnormal forms of palatewith bottle-feeding. The cases cited byPedley are, however, exceptional, inasmuchas artificial feeding with the rubber teat wascontinued for prolonged periods up to twoand three years of age. In the ordinary coursebottle-feeding is, or should be, abated con-siderably at nine to twelve months and aban-doned altogether as soon after as Fig. 124.—The same in occlusion. Upper figurecorresponds with the left-hand figure of 123;lower figure with right-hand figure. Note theocclusion—normal in the upper figure, post-normal in the lower. (CJ. Northcroft : DentalRecord ; from Dental Review.) Harm jirobably results when artificial adminis-tration of milk is badly managed and undulyprolonged, especially if imperfect apparatusis employed ; much importance attaches to thesize of the orifice in the teat, and the regula- 81 tion of the flow by providing for ingress ofair at the opposite end of tiie bottle. If theseare so adjusted that the infant takes its mealin about the same time, twenty minutes,as it would in a natural way, the risks areminimized. Within recent years rubber teatsliave been introduced to resemble the humanbreast. In the opinion of the writer the evilsof artificial feeding have been greatly exagger-ated, and he believes that if proper care is takenno evil effects o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
