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326 THIRD PERIOD—MODERN TIMES
through the nasal orifice, as Jouidain would have it, Bell advises opening
the cavity by Lamorier's, or, better still, by Drake's method. Except in
special cases, the first or second molar ought to be extracted, but prefer-
ably the second. After trepanning the alveolus and emptying the cavity,

Fig. 99

Two key instruments witli chanireahic hooks (L"ani|-)ani).

the opening should be closed with a conically shaped peg to prevent
its slipping into the cavity. From time to time the liquid that tends to
reaccumulate should be allowed exit, and detersive injections should be
made, preferably of lime water.