PMC7468625_01
Pretreatment extraoral and intraoral photographs.
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Temporomandibular joints were within normal limits (Figure 1). Lips were retruded; the lower lip was -6 mm to the Ricketts E-line, the upper lip was -4 mm to the Ricketts E-line, and the nasolabial angle was increased (119 ) (Figure 4, Table 1).
Pretreatment study models.
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The lower arch was U-shaped with slightly constricted intercanine distance (20 mm) and a mild generalized crowding (4 mm) (Figure 2).
Pretreatment pantomogram X-ray.
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Pretreatment cephalometric radiograph and its tracing.
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Lips were retruded; the lower lip was -6 mm to the Ricketts E-line, the upper lip was -4 mm to the Ricketts E-line, and the nasolabial angle was increased (119 ) (Figure 4, Table 1).
Midtreatment photographs.
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Arch coordination and finishing were done for 6 months (Figure 5).
Posttreatment extraoral and intraoral photographs.
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The crowding was resolved, the severely displaced teeth were aligned bodily, and normal overbite and overjet were achieved with class I canine and molar relationships (Figure 6).
Posttreatment study models.
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The intercanine distance was maintained except for a 1 mm increase in the upper arch (Figure 7).
Posttreatment pantomogram X-ray.
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Posttreatment cephalometric radiograph and its tracing.
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Cephalometric superimposition.
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Postretention extraoral and intraoral photographs.
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