96 VE TERINAR Y DENTAL SURGER Y. 



law as exostosis upon any other bony structures of 



the body. 



TREATMENT. 



The only treatment practicable is the extraction 

 of the tooth, for when once established there is no 

 remedy which will promote its absorption. In re- 

 moving a tooth affected by exostosis great care must 

 be exercised lest the alveolus, and even the bone 

 itself, may become fractured. It is a good plan to tre- 

 phine down onto the exostosis and remove a portion 

 of the alveolus of sufficient size to allow the tooth to 

 slip out without fracturing the jaw bone. 



C. E. Sayre, D. V. $., of Chicago, Illinois, 

 reported a very interesting case of an exostosis on 

 the roots of a lower (third) molar tooth. The tooth 

 had partially decayed and was a source of much 

 trouble to the patient. Upon making an examina- 

 tion it was found that there had been complete sepa- 

 ration of the tooth and dental periosteum allowing 

 the tooth to become loose in its socket. It could be 

 rotated very easily with the ringer. He endeavored 

 to remove it with the extracting forceps but did not 

 succeed. Trephining was then resorted to, an open- 

 ing being made directly over the roots of the tooth. 

 On exposing them an exostosis was discovered com- 

 pletely encircling the tooth a short distance from 

 the end of the root. This enlargement formed a 

 complete circle around the tooth and very much 



