116 PROTOZOAN PARASITISM 



amoebae and pus had disappeared but the tissues had 

 healed and become healthy. Otherwise recovery 

 could not be expected and recurrence of amoebae took 

 place. 



In late pyorrhoea, particularly with deep pus pock- 

 ets and extension sinuses, extensive tissue destruction, 

 particularly of the supporting and adhering tooth 

 attachments, it was recognized that it was most diffi- 

 cult or impossible to eliminate the amoebae and that 

 lost tissues could not be fully restored. The extrac- 

 tion of loose teeth, surgical opening and drainage of 

 deep sinuses or pockets, the syringing of pockets with 

 water or saline solution followed by flushing with 

 0.5% emetine solution, thorough and regular dental 

 cleaning, in addition to emetine hypodermatically, 

 were recommended as measures directed at halting 

 the progress of the disease, but not expected to be 

 curative measures. 



As a research procedure it is needed now to revive 

 an interest in the treatment of oral amoebiasis in the 

 light of some of the information which has been 

 gained since the abandonment of the whole idea. 

 Stovarsol both locally and taken by mouth as in in- 

 testinal amoebiasis should be tried. Chiniofon and 

 the dyes of Koch and the application of heat, these 

 and other measures, associated with dentistry and 

 dental surgery, are available for experimentation. 

 But let all be most carefully controlled and calculated. 

 Let us not have another spectacle such as occurred 

 about 1915-1916. 



