PMC5426147_01
Patient's pretreatment photographs (a) extraoral frontal (b) extraoral smile (c) profile (d) intraoral frontal
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F1
There was no shift of midline on mandibular closure [Figure 1a-c]. Maxillary and mandibular incisors were in edge-to-edge relation [Figure 1d].
Pretreatment study models (a) right buccal occlusion (b) left buccal occlusion (c) maxillary occlusal view (d) mandibular occlusal view
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F2
Maxillary dentition revealed cross-bite tendency [Figure 2a-d].
Pretreatment radiographs (a) maxillary intraoral periapical (b) mandibular intraoral periapical (c) orthopantomograph (d) lateral cephalogram
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F3
Examination of intraoral periapical (IOPA) radiographs in relation to maxillary and mandibular incisors revealed no periapical pathology [Figure 3a and b]. Nolla's stage 6 of teeth development. No clinical significant abnormality was observed [Figure 3c]. SNMP; 38 ), proclined and protruded upper incisors (5 mm and 31 ), and rectroclined lower incisors with normal nasolabial angle. She was in Cervical Vertebrae Maturation Indicator Stage 2 [Figure 3d].
(a) Chin cup delivery (b) lateral cephalogram at the end of chin cup therapy
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F4
As this patient reported at an early age with Class III skeletal pattern due to mandibular prognathism, chin cup therapy [Figure 4a] was started at this stage and advised to wear it for approximately 14-16 h/day. After chin cup therapy [Figure 4b] full-arch bonding of the upper and lower arches was done using 018" slot Standard edgewise appliance.
Posttreatment photographs (a-d) extraoral photographs (e-i) intraoral photographs
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F5
There was improvement in facial profile, nasolabial angle, and mentolabial sulcus [Figure 5a-d]. At the end, good Class I molar and canine relationship with normal overjet and overbite was achieved [Figure 5e-i]).
Posttreatment radiographs (a) maxillary intraoral periapical (b) mandibular intraoral periapical (c) orthopantomograph (d) lateral cephalogram
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F6
The upper incisor to NA was normalized at the end of treatment [Figure 6].