REPULSION OF TEETH. 1 1 



2. REPULSION OF TEETH. 

 PI.ATE III. 



Uses. The removal of molars, pre-molars, tooth fangs 

 from which the crowns have been broken away, alveolar 

 odontomes, etc., which can not be removed safely by means 

 of the forceps. 



Instruments. Razor, convex scalpels, trephine, bone 

 gouge, Luer's sharp bone forceps, light and heavy bone 

 chisels, mallet, tooth punch, curette, compression artery 

 forceps, scissors, needles, thread, absorbent cotton, antiseptic 

 gauze, extracting forceps, splinter forceps, dressing forceps, 

 tenacula, metal probe, mouth speculum. 



Technic. Secure the animal in the lateral recumbent 

 position with the affected side up. The operating table 

 affords by far the best means for securing for the conven- 

 ience and safety of operator and patient. If the sinuses are 

 so involved as to make possible the inhalation of pus, blood 

 or other injurious matter, perform tracheotomy in ample 

 time to avert danger. Anaesthetize. Shave and disinfect 

 the operative area and trephine according to the method 

 described in the following chapter down through the alveolar - 

 plate immediately over the fang of the affected tooth. Avoid 

 dulling the trephine by striking it against the tooth fang 

 itself. If a tooth fistula exists the identity of the affected 

 tooth is best determined by passing a metallic probe through 

 the fistula against the diseased fang while one hand is passed 

 into the mouth and the location of the probe ascertained. 

 Care should be exercised in trephining to not injure the ad- 

 joining teeth. After removing the disc of bone isolated by 

 the trephine, control all hemorrhage and then enlarge the 

 opening and remove the bony tissues till the tooth fang is 

 bared its entire width. Insert a scalpel between the bone and 

 soft tissues at the margin of the trephine opening nearest the 



