. Elementary and dental radiography . Fig. 155. Fig. 156. Fig. 155. An impacted upper fourth 150. A supernumerary tooth in the canal of a cuspid tooth. (Radiograph by Clarence Van Woert, of New York City.) To me this is a most remarkable case—a super-Tig. 156. numerary tooth in the canal of a cuspid tooth—atooth inside of a tooth. The supernumerary toothhas a root canal, and the crown is covered with enamel. There is nodoubt of the fact stated, because Dr. Van Woert, after radiographing thecase, drilled into the permanent cuspid and found the enamel-coveredsupernumerary within. The
. Elementary and dental radiography . Fig. 155. Fig. 156. Fig. 155. An impacted upper fourth 150. A supernumerary tooth in the canal of a cuspid tooth. (Radiograph by Clarence Van Woert, of New York City.) To me this is a most remarkable case—a super-Tig. 156. numerary tooth in the canal of a cuspid tooth—atooth inside of a tooth. The supernumerary toothhas a root canal, and the crown is covered with enamel. There is nodoubt of the fact stated, because Dr. Van Woert, after radiographing thecase, drilled into the permanent cuspid and found the enamel-coveredsupernumerary within. The radiograph is not as good as I wish it upper two-thirds of the roots of the teeth shows fairly well but tbereis a confusion of shadows in the lower third and m the crown. 9. Tn eases of Impacted teeth as an Aid in extraction. Impacted, lower, third molar tipped to theTig. 157. mesial. The picture shows that in this case a knife- edge stone in the dental engine could he used to ad-vantage, rutting away the mesio-OCClusal
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