The infectious disease tends to decrease by means of wide-spread use of the chemotherapy.
We reported on two cases of actinomycosis in oral area, and then took into consideration about many problems in diagnosing and treating them. The first one showed a complicated progress associated by toxic hepatitis which had been caused by immunoreaction. We could not obtain a bacteriological evidence to substatiate a diagnosis of this, although clinical findings were most suggestive of actinomycosis. The second case showed only painless granulation tumor, but this was exactly diagnosed by pathological finding after the operation.
