case_images: PMC10576646_01
case_images: Pretreatment facial and intraoral photographs.
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case_images: fig1
case_images: Pretreatment facial photographs (Figure 1) showed a well-proportioned and symmetrical face, without a gummy smile and with competent lips.
case_images: Pretreatment lateral cephalometric radiograph, tracing, and panoramic radiograph.
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case_images: fig2
case_images: The pretreatment lateral cephalometric analysis (Figure 2) suggests a class III skeletal pattern (ANB, -1.8 ; Wits appraisal, 0 mm; SNB, 88.4 ) and a hypodivergent facial pattern (SNMP, 28 ).
case_images: Intraoral photographs of patient after one month of treatment with Carriere  Motion .
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case_images: fig3
case_images: III motion appliance to improve the sagittal relationship and achieve a class I by distalizing each mandibular posterior segment, from canine to molar, as a unit. In this stage, we utilized the upper Essix as anchorage and hooked the upper six molars to the lower canines and force 1 elastic (6 Oz 1/4).  Figure 3 shows the case after one month of treatment by Carriere  Motion  Class III appliance. During the early stages of treatment, Carriere  Motion  generates a temporary open bite (Figures 3, 4, and 5) which in the later stages is resolved by fixed orthodontic treatment that results in increased transverse diameters of the arches (Figure 6).
case_images: Intraoral photographs of patient after three months of treatment with Carriere  Motion ; upper Essix as anchorage, hook on the upper six.
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case_images: fig4
case_images: After three months (Figure 4), when molar class I was almost achieved, we moved on to the second stage; the maxillary arch was bonded with Carriere  SLX .022 "preadjusted, .022" edgewise molar tubes in conjunction with thermally activated Cu Nitanium* wires (Figure 5). During the early stages of treatment, Carriere  Motion  generates a temporary open bite (Figures 3, 4, and 5) which in the later stages is resolved by fixed orthodontic treatment that results in increased transverse diameters of the arches (Figure 6).
case_images: Intraoral photographs of patient after upper bracket application.
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case_images: fig5
case_images: After three months (Figure 4), when molar class I was almost achieved, we moved on to the second stage; the maxillary arch was bonded with Carriere  SLX .022 "preadjusted, .022" edgewise molar tubes in conjunction with thermally activated Cu Nitanium* wires (Figure 5). During the early stages of treatment, Carriere  Motion  generates a temporary open bite (Figures 3, 4, and 5) which in the later stages is resolved by fixed orthodontic treatment that results in increased transverse diameters of the arches (Figure 6).
case_images: Intraoral photographs of patient after six months of treatment.
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case_images: fig6
case_images: Two months later, the Carriere  Motion  is disassembled, and direct attachments of self-ligating SLX 3D Carriere  are placed on the lower arch with a nickel-titanium (Niti) 0.014 arch wire, always using class III elastics (2 Oz 3/16) (Figure 6). During the early stages of treatment, Carriere  Motion  generates a temporary open bite (Figures 3, 4, and 5) which in the later stages is resolved by fixed orthodontic treatment that results in increased transverse diameters of the arches (Figure 6).
case_images: Intraoral photographs of patient after one year of treatment.
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case_images: fig7
case_images: After one year and a few months of treatment, steel arches were used: 0.018 x 0.25 for both arches (Figure 7). After one year of treatment, the molar and canine relationship was achieved (Figure 7).
case_images: Intraoral photographs of patient after debonding.
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case_images: fig8
case_images: The total treatment time was twenty-five months (Figure 8).