. Elementary and dental radiography / by Howard Riley Raper . Fig. 157. Fig. 158. Fig. loT. An impacted lower third molar. The light area between the second and third molarsrepresents a destruction of bony tissue, arrow A. Arrow B points to a light area, which rep-resents the absorption of the second molar. (Radiograph by Blum, of New York City.) Fig. An impacted upper third molar. The arrow points to a light area representing absorp-tion of the upper second molar. Notice the very poor filling in the first molar; it fills theinterproximal space between the first and second molars. (Radio
. Elementary and dental radiography / by Howard Riley Raper . Fig. 157. Fig. 158. Fig. loT. An impacted lower third molar. The light area between the second and third molarsrepresents a destruction of bony tissue, arrow A. Arrow B points to a light area, which rep-resents the absorption of the second molar. (Radiograph by Blum, of New York City.) Fig. An impacted upper third molar. The arrow points to a light area representing absorp-tion of the upper second molar. Notice the very poor filling in the first molar; it fills theinterproximal space between the first and second molars. (Radiograph by Ream, of Chicago.) In Fig. 158 the arrow points to a light area representing absorptionof the upper second molar, due to the pressure of the third molar againstit. A study of this radiograph gives the dental surgeon a good idea ofhow he should apply his force in extraction. Fig. 159 is a case of Dr. Cryers. I quote Dr. Cryer: Fig. 159shows an impacted, lower, third molar resting against the posterior rootof the second molar. It will be seen that th
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