Page 825 - My FlipBook
P. 825
;
PHYSIOGNOMY AND THE SAVING OF TEETH. 823
The projecting ends of the wire are bent so as to lie close to the face,
and with sufficient extension to prevent
Fig. 8G8.
the rubber bands pressing into the
cheeks. The ends are doubled toward
each other at the proper angle to re-
ceive the bands.
Small wire triangles serve to attach
the rubber bands to the skull-cap, by
means of flat buttons sewed to the
gauze. Finally, cover the rim of the
cap with padded silk ribbon and line
the chinpiece with some loosely woven
material, binding the edges with silk.
The skull-cap is admirably adapted
also for applying a retruding force to the upper anterior teeth, by
means of a bar which engages with an encircling wire attached to
molar anchorages.
V. The Relations of the Physiognomy to the Saving- and
Extraction of Teeth.
In its widest scope this subject includes the propriety of saving, and
on the other hand, the propriety of extracting certain teeth of the
deciduous as well as the permanent dental arches which in any way
influence the prevention, the production, or the correction of dento-facial
Fig. 869. Fig. 870.
irregularities. Two phases of this subject will be here presented. The
first will be in regard to the saving or the extraction of the upper bicus-
pids for patients older than fourteen, to correct a dental irregularity
the second will deal with the early extraction of the bicuspids to pre-
vent an abnormal upper protrusion.
In the common form of dental irregularity shown by Fig. 869, espe-
cially if only the model of the upper jaw were the subject of study, it
PHYSIOGNOMY AND THE SAVING OF TEETH. 823
The projecting ends of the wire are bent so as to lie close to the face,
and with sufficient extension to prevent
Fig. 8G8.
the rubber bands pressing into the
cheeks. The ends are doubled toward
each other at the proper angle to re-
ceive the bands.
Small wire triangles serve to attach
the rubber bands to the skull-cap, by
means of flat buttons sewed to the
gauze. Finally, cover the rim of the
cap with padded silk ribbon and line
the chinpiece with some loosely woven
material, binding the edges with silk.
The skull-cap is admirably adapted
also for applying a retruding force to the upper anterior teeth, by
means of a bar which engages with an encircling wire attached to
molar anchorages.
V. The Relations of the Physiognomy to the Saving- and
Extraction of Teeth.
In its widest scope this subject includes the propriety of saving, and
on the other hand, the propriety of extracting certain teeth of the
deciduous as well as the permanent dental arches which in any way
influence the prevention, the production, or the correction of dento-facial
Fig. 869. Fig. 870.
irregularities. Two phases of this subject will be here presented. The
first will be in regard to the saving or the extraction of the upper bicus-
pids for patients older than fourteen, to correct a dental irregularity
the second will deal with the early extraction of the bicuspids to pre-
vent an abnormal upper protrusion.
In the common form of dental irregularity shown by Fig. 869, espe-
cially if only the model of the upper jaw were the subject of study, it
