PMC7585465_01
(a-h) Pretreatment extra-oral and intra-oral photographs
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F1
The lower midline is 2 mm shifted to the right to the upper midline [Figure 1].
(a-e) Pretreatment study model
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F2
Therefore, he had 1.7 mm posterior mandibular excess and average curve of Spee [Figure 2].
Pretreatment panoramic radiograph
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F3
The LR6 had poor root canal treatment and a comprehensive defective coronal restoration [Figure 3].
Pretreatment cephalometric radiograph
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F4
The analysis of lateral cephalometric X-ray and its tracing [Figures 4 and 5] showed that according to Sudanese's norms, the patient has a skeletal class III relationship (SNA = 76 , SNB = 75.9 , ANB = 0.1 ) that was confirmed by Wits appraisal (-2.6 mm).
Pretreatment cephalometric tracing
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F5
The analysis of lateral cephalometric X-ray and its tracing [Figures 4 and 5] showed that according to Sudanese's norms, the patient has a skeletal class III relationship (SNA = 76 , SNB = 75.9 , ANB = 0.1 ) that was confirmed by Wits appraisal (-2.6 mm).
(a-e) Upper and lower 0.014-inch nickel-titanium archwire (NiTi) and caninesae laceback, initial leveling and alignment
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F6
Initial leveling and alignment of the upper and lower teeth were performed using a round 0.014-inch nickel-titanium archwire (NiTi) and canines' laceback [Figure 6], followed by 0.016-inch NiTi and then 0.016 x 0.016-inch NiTi.
(a-e) Upper and lower 0.016 x 0.016-inch NiTi, couple force on lower right canine for derotation
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F7
During the leveling and alignment stage, placement of buccal and lingual buttons on the lower right canine to derotate it by applying a couple of force was performed [Figure 7].
(a-h) Posttreatment extra-oral and intra-oral photographs
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F8
Also, the results showed that the midline was corrected with optimum overjet and overbite [Figure 8].
Posttreatment panoramic radiograph
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F9
The final panoramic radiograph showed that the LR7 bodily protracted to occupy the space of the previously extracted LR6 [Figure 9].
Posttreatment cephalometric radiograph
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F10
The lateral cephalometric radiograph and the cephalometric tracing showed a remarkable incisor retroclination with a noticeable improvement in the overlying soft tissue of the face [Figures 10 and 11].
Posttreatment cephalometric tracing
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F11
The lateral cephalometric radiograph and the cephalometric tracing showed a remarkable incisor retroclination with a noticeable improvement in the overlying soft tissue of the face [Figures 10 and 11].
(a and b) Superimposition of the cephalometric tracing (Black: pre-treatment, Red: Post-treatment) a-Overall superimposition b-maxilla and mandible superimposition
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F12
The pretreatment and posttreatment lateral cephalometric superimposition radiograph confirmed the previous results [Figure 12].