. Dental electro-therapeutics. Fig. 107 represents the left upper deciduous second molarwith roots nearly wholly absorbed without any trace of abicuspid above it. IV. The .r-ray has proved itself to be of inestimable valuein the diagnosis of the extent of destruction of bone as aresult of alveolar abscess. The part of the bone destroyedby the abscess absorbs comparatively little of the rays, sothat these darken the corresponding part of the sensitivefilm to a degree more or less marked, according to the sizeand depth of the abscess cavity. Fig. 10S is an illustration of both destruction of bon
. Dental electro-therapeutics. Fig. 107 represents the left upper deciduous second molarwith roots nearly wholly absorbed without any trace of abicuspid above it. IV. The .r-ray has proved itself to be of inestimable valuein the diagnosis of the extent of destruction of bone as aresult of alveolar abscess. The part of the bone destroyedby the abscess absorbs comparatively little of the rays, sothat these darken the corresponding part of the sensitivefilm to a degree more or less marked, according to the sizeand depth of the abscess cavity. Fig. 10S is an illustration of both destruction of boneand absorption of the end of the root of the affected molar. One or more broaches inserted into the nerve canal andextending through the apical foramen of the affected rootswill often show the operator through which of them com-munication with the abscess cavity has been established. Fio. 109 Fig. 110
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherphiladelphialeafeb
