106 VETERINARY DENTAL SURGERT. 



TREATMENT. 



No treatment will completely arrest these growths, 

 and a dispersion of an exostosis on the walls of the 

 sinus can never be effected. Blisters and absorbents 

 may slightly arrest their growth, but will not entirely 

 cause its removal. It is not desirable to remove an 

 exostosis, unless it continues to increase in size, and 

 produce deleterious effects or is productive of serious 

 inconvenience. 



When it becomes necessary to remove the exosto- 

 sis, it should be fully exposed. This may be accom- 

 plished with the ordinary trephine and separating 

 saw, after having properly dissected away the soft 

 parts ; care being taken to prevent injury to the sur- 

 rounding tissue. If the tumor is attached to the 

 outer walls only, of the sinus, by removing the walls 

 the tissues can be brought away with it. If attached 

 to the internal walls of the sinus by a broad base, its 

 removal is more difficult; the bone cutting forceps, 

 Fig. 39 with the saw and bone chisel, will be neces- 

 sary to accomplish its removal. 



If the exostosis be cartilaginous or of a fungoid 

 growth, a heavy pair of scissors will be strong 

 enough to remove them. If a portion of the exos- 

 tosis remains, the application of the actual cautery 

 will prove beneficial by causing an exfoliation of the 

 diseased portion. The Paquelin thermo-cautery is 

 an excellent instrument for cauterizing. When the 



