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818 THE DEVELOPMENT OF ESTHETIC FACIAL CONTOURS.

nasal cartilages which spring from the anterior nasal spine and lateral
borders of tlie nasal orifice, is often decidedly affected in shape by the
retracting influence of its supports.
"When there is a decided retrusion of the entire upper lip and lower
portion of the nose, with ahe resting in deep depressions caused by the
unusual j^rominence of the naso-labial
Fig. S5G.
folds, the effect is that of an abnormal
protrusion of surrounding parts, pro-
( hieing at times a startling expression
of maturity that is only common to
persons of advanced age. This expres-
sion can be seen in Fig. 856, which is
that of a girl only twelve years of age,
and will serve as a type of cases com-
monly met with in practice.
Class 2 : Retruded and Contracted
Dental and Maxillary Arch.—In this
class of deformities the physiognomy,
in the more pronounced cases, has much the same characteristics as
those described above, but presenting a more general retraction of
the central features, with less pronounced naso-labial folds. The nose
is often thin and the nostrils pinched ; and though the end of the nose
may be depressed, the distance from the tip to the more depressed lip
is often lengthened. If the patient is a "mouth-breather" with the
Fig. 857. Fig. 858.

typical " open bite," the deformity and the difficulties attending its
reduction will be greatly increased.
Fig. 857 is from a profile model of a face of this class. Fig. 858
is from the same model photographed at a slightly different angle to
show the angularity of tlie features.
Fig. 859 is a view of the teeth in natural occlusion. The first lower