Pacific Coast Society of Orthodontists Bulletin Summer 2020 - 51

Case Report

Figure 3. Pretreatment panoramic radiograph and lateral cephalogram
increased lower face height (ANS-Me, 69.3
mm) (Figure 3 and Table 1). The patient's
cervical vertebral maturation is at stage 5,
and her remaining growth is estimated to be
minimal. The ABO Discrepancy Index score
of this case is as high as 56 (Figure 4).
Treatment Alternatives
Option 1: Full fixed appliance for orthodontic
treatment. Discuss the tongue habit with
the patient and bond tongue spurs on the
lingual surfaces of the maxillary incisors.
Extract the maxillary first premolars, mandibular right second and left first premolars;
restrict maxillary growth with high-pull
headgear; intrude the maxillary molars
using microimplants and correct the Class II
with a Forsus™ Fatigue Resistant Device.

Summer 2020    PCSO Bulletin	

Table 1. Pretreatment Cephalometric Measurements
Variable

Norm

Pretreatment

SNA (°)

82.0

85.3

SNB (°)

80.0

76.8

ANB (°)

2.0

8.5

FMA (FH-MP) (°)

25.0

32.9

SN-MP (°)

32.0

43.2

4.0

7.9

104.0

118.4

4.0

11.0

90.0

100.0

Upper lip-E line (mm)

-4.0

0.4

Lower lip-E line (mm)

-2.0

3.1

U1-NA (mm)
U1-SN (°)
L1-NB (mm)
IMPA (L1-MP) (°)

51



Pacific Coast Society of Orthodontists Bulletin Summer 2020

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