Three-dimensional Evaluation of the Carriere Motion 3D Appliance in the treatment of Class II malocclusion

Biggs, Elizabeth V.; Benavides, Erika; McNamara, James A.; Cevidanes, Lucia H.S.; Copello, Flavio; Lints, Ronald R.; Lints, Joel P.; Ruellas, Antonio C.O.

doi:10.1016/j.ajodo.2023.05.031

Cited by 2 publications

(3 citation statements)

References 35 publications

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“…While both groups showed significant protrusion of the lower incisors, there was significantly less in the CMA group compared to the TB group (1.16 mm and 2.62 mm, respectively). Our findings of less loss of anchorage in the mandibular incisors caused by the CMA are consistent or even smaller than previous studies [15,17,19,20,22,23,26]. However, a significant anterior movement of the dentition and mandibular incisor protrusion is associated with other orthodontic modalities, such as the TB appliance [10], as well as fixed functional appliances [28], and Class II elastics [18].…”

Section: Discussionsupporting

confidence: 88%

“…It is compact, causes minimal discomfort, and is designed mainly for bodily movement rather than the tipping of the maxillary molars [15,16]. Along with its effective distalization of the maxillary molars, it might produce undesired effects, such as proclination and the protrusion of the mandibular incisors, molar tipping, and opening of the bite [16,17]. The ball-and-socket design of the CMA located in front of the molar pad, which is bonded to the maxillary first molars, facilitates distopalatal rotation around their palatal roots, resulting in the improvement of the sagittal relationship of the molars [12].…”

Section: Introductionmentioning

confidence: 99%

“…A limited number of studies investigated the treatment effects of CMA and concentrated primarily on dental changes [19,20]. Others have examined dentoalveolar and skeletal alterations, with limited association with soft tissue [17,21,22]. Moreover, mandibular position changes and loss of anchorage induced by CMA were studied only in comparison to fixed functional appliances [18], while no study specifically compared the impact of CMA on removable functional appliances like TB.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating the Effects of Carriere Motion Appliance and Twin Block Appliances in Class II Correction—A Retrospective Study

Har Zion,

Katzhendler,

Bader Farraj

et al. 2024

Dentistry Journal

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This retrospective study compared Class II orthodontic non-extraction treatment using Carriere Motion Appliance (CMA) and Twin Block (TB) appliances. Methods: The treatment of 38 patients was assessed. Pre- and post-treatment cephalometric radiographs were analyzed to evaluate skeletal, dental, and soft tissue treatment outcomes and efficacy. Results: Both appliances effectively corrected the Class II molar relationship. When measured at the distal aspect of the first molar, TB achieved 4.22 mm, while CMA had a 2.55 mm correction. When measured in the mesial aspect, the CMA achieved a 3.9 mm correction. The changes in SNB and ANB were statistically significant only in the TB group. The CMA appliance demonstrated statistically significantly less protrusion of the mandibular incisors and less upper incisor retrusion without vertical changes compared to the TB appliance. The TB demonstrated statistically significant lower lip protrusion compared to the CMA. Conclusion: The CMA corrects Class II malocclusions only by exerting a dentoalveolar influence and does not demonstrate the added effects associated with TB, such as elongation of lower facial height (LFH) and less loss of lower anchorage. Nonetheless, the correction in the TB group comprised both dentoalveolar and skeletal components. The CMA promotes a multidirectional upper and lower molar movement, and despite our 2D cephalometric analysis, we were able to estimate the extent of upper molar derotation.

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Section: Discussionsupporting

confidence: 88%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Evaluating the Effects of Carriere Motion Appliance and Twin Block Appliances in Class II Correction—A Retrospective Study

Har Zion,

Katzhendler,

Bader Farraj

et al. 2024

Dentistry Journal

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Evaluation of post‐activation mandibular remodelling in children with craniofacial microsomia treated with distraction osteogenesis

Li,

Xia,

et al. 2024

Orthod Craniofacial Res

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ObjectivePatients with type IIA craniofacial microsomia (CFM) may benefit from mandibular distraction osteogenesis (MDO) treatment during childhood; however, remodelling of the mandible during the consolidation phase, which may affect the short‐term outcomes of MDO, has not yet been quantitatively analysed using computed tomography. Therefore, we aimed to investigate bone remodelling of the mandible in children with type IIA CFM treated with MDO before distractor removal and the factors that influence ramus vertical elongation efficiency.Materials and MethodsTwenty‐three children with unilateral CFM were studied between 2020 and 2024. Longitudinal computed tomography data (preoperative, end of active phase and at pre‐distractor removal) were analysed. Condyle positions and the mandibular cant were analysed using a paired‐sample t test. The relapse rates of vertical lengthening and mandibular cant were calculated. The correlation between distraction efficiency and preoperative craniofacial morphology was analysed.ResultsThe condyle on the affected side moved upwards and backwards by 28.84 ± 4.08 and 2.85 ± 4.33 mm, respectively during the active phase but lost 7.66 ± 2.64 mm of vertical extension during the consolidation phase. The relapse rates for vertical extension of the condyle and occlusal plane were 27% and 35%, respectively. The ratio of mandibular ramus height was positively related to EV.ConclusionsIn children with CFM, attention should be paid to vertical elongation instability and relapse of mandibular inclination during consolidation. Severe mandibular ramus hypoplasia is a preoperative risk factor for vertical skeletal relapse during consolidation. Further efforts are required to reduce the stress that leads to relapse.

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Three-dimensional Evaluation of the Carriere Motion 3D Appliance in the treatment of Class II malocclusion

Cited by 2 publications

References 35 publications

Evaluating the Effects of Carriere Motion Appliance and Twin Block Appliances in Class II Correction—A Retrospective Study

Evaluating the Effects of Carriere Motion Appliance and Twin Block Appliances in Class II Correction—A Retrospective Study

Evaluation of post‐activation mandibular remodelling in children with craniofacial microsomia treated with distraction osteogenesis

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