Pacific Coast Society of Orthodontists Bulletin Fall 2020 - 60

Case Report
Table 2. Comparison of Pretreatment and Posttreatment Cephalometric Measures
Cephalometric
measurement

Norm

Pretreatment

SNA (°)

82.0

83.4

81.4

SNB (°)

80.0

81.4

79.0

ANB (°)

2.0

2.0

2.4

FMA (FH-MP) (°)

25.0

32.1

34.0

SN-MP (°)

32.0

39.2

41.3

4.0

10.1

4.9

104.0

120.4

102.6

4.0

11.0

6.0

IMPA (L1-MP) (°)

90.0

98.1

80.8

Upper lip to E-line (mm)

-4.0

-1.0

-2.2

Lower lip to E-line (mm)

-2.0

6.9

1.6

U1-NA (mm)
U1-SN (°)
L1-NB (mm)

Posttreatment

Figure 6. Final facial and intraoral photographs (S.B., 21 years, 2 months)

Figure 8. Posttreatment radiographs: (A) lateral cephalogram, (B)
cephalometric tracing, (C) panoramic radiograph

Figure 9. Overall superimposition (left), maxillary (top right) and
mandibular (bottom right) superimpositions (black, pretreatment;
red, posttreatment)
oramic radiograph showed acceptable root parallelism, while clinical
and periodontal charting showed a healthy periodontium. Unfortunately, as her general dentist had observed, there were small areas
of decalcification on several posterior teeth (Figures 6-9). Fortunately, this had been discussed with the patient before treatment. Her
ABO cast radiograph evaluation score was 21 (Figure 10). The patient
was very satisfied with the final results.
Editor's Comments
This case demonstrates how an adult female patient with dental
Class III malocclusion and protrusive incisors and lips was successfully treated with a conventional orthodontic approach by carefully

Figure 7. Final digital models
60	

PCSO Bulletin    Fall 2020



Pacific Coast Society of Orthodontists Bulletin Fall 2020

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