PMC5573517_01
Pretreatment extraoral and intraoral photographs.
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He had a symmetric face with competent lips, average smile line with consonant smile arch, and straight profile (Figure 1).
A, pretreatment panoramic radiograph; B, posttreatment panoramic radiograph; C, panoramic radiograph at 5-year follow-up.
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The panoramic radiograph revealed that upper and lower third molars were erupting (Figure 2).
A, B, C, diastema closure; D, E, interproximal enamel reduction.
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One week after extraction, orthodontic brackets (0.018-inch slot, preadjusted Roth edgewise appliances) were placed on the mandibular teeth and alignment for the lower arch was initiated with 0.014- in Ni-Ti archwire, at the same time a segment of light elastomeric chain was placed between lower right lateral incisor and left canine to close the diastema and eliminate crowding (Figure 3, Figure 3, Figure 3). Upper central incisors were reshaped by reducing the maxillary central incisors 2 mm interproximally (Figure 3, Figure 3).
Posttreatment extraoral and intraoral photographs.
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After satisfactory interdigitation was achieved, the fixed appliances were removed, and maxillary and mandibular canine-to-canine fixed lingual retainers were placed for retention (Figure 4).