. The science and practice of dental surgery. ypoplasicteeth the result of a mild attack of site of the lesion is determined by thecoincidence in time of the heiglit of the diseaseand the stage of calcification of tlie teeth; andthe degree of deformity is more or less commen-surate with the severity of the attack. Examples of hypoplasia of the deciduousteeth are rarely met with, but it is obvious thata severe constitutional disturbance in the motherduring the later months of intra-uterine lifeof the foetus may produce these defects. Hyijoplasic teeth (5) (34) (86, No. 5, p. 239)may
. The science and practice of dental surgery. ypoplasicteeth the result of a mild attack of site of the lesion is determined by thecoincidence in time of the heiglit of the diseaseand the stage of calcification of tlie teeth; andthe degree of deformity is more or less commen-surate with the severity of the attack. Examples of hypoplasia of the deciduousteeth are rarely met with, but it is obvious thata severe constitutional disturbance in the motherduring the later months of intra-uterine lifeof the foetus may produce these defects. Hyijoplasic teeth (5) (34) (86, No. 5, p. 239)may be divided into t^\o main classes— (1) Hypoplasia caused by a general disorder, and found usually in several teeth. (2) Hypoplasia caused by local conditions, and found usually in a single tooth. Hypoplasia of Malnutrition Various kinds and degrees of the conditionin this class have been noted. The teethusually affected are the first molars, the in-cisors, and canines; more rarely the first pre-molars, the second premolars, the second and. Fig. third molars, in that order of frequency. Inall cases the parts of the different teeth affectedin the same mouth are those that were under-going calcification synchronous with the periodof the disordered nutrition that caused thedefects (Fig. 73). As regards the character of the defects themselves as shown in incisors andcanines, in slight cases it may be merely anopacity or discoloration of the enamel; in moremarked cases the enamel is deficient or absentand the surface of the tooth is irregular, rough,and pigmented (Fig. 74). In other examplesthe defect consists of a horizontal row of pits
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdentistry, bookyear19
