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Fig. 4.
FiQ. 1. Atrophy of the cutting edge of the central incisors, forming a central notch or scar.
This is usually called " Hutchinson's tooth." In connection with this form of atrophy, the occlusal
surfaces of the first molars are also badly marked.
Fig. 2. Atrophy of the cutting* edge of the central and lateral incisors. When this occurs, some
portions of the occlusal surfaces of the first molars will also be injured.
Fig. 3. Atrophy marks on the incisors and cuspids. In this case there is a pitted groove around
the crown of each tooth atrophied. The first molars have a similar groove on their axial surfaces.
Fig. 4. Atrophy marks on the incisors, showing the inverted fingernail scar on the lateral incisors.
