Page 267 - My FlipBook

EXTRACTION OF PERMANENT TEETH 263

ending in the external oblique line which is an eminence and ma-
terially thickens the jawbone just buccal to the third molars.
It must also be remembered that there is little of the alveolar
process formed around the third molar, seldom more than that por-

Fig. 136.—Position for extracting right upper third molars.
tion which builds in around the neck to insure its retention. There-
fore when the tooth is broken off it at once becomes a very difficult
task to remove the remaining portion, owing to the strength and
width of the bone at this point.
Care Should Be Taken Not to Employ Great Pressure Lino-ually