Retrospective investigation of the 3D effects of the Carriere Motion 3D appliance using model and cephalometric superimposition
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Retrospective investigation of the 3D effects of the Carriere Motion 3D appliance using model and cephalometric superimposition. / Schmid-Herrmann, Carmen; Delfs, Jesper; Mahaini, Luai; Schumacher, Eliane; Hirsch, Christian; Köhne, Till; Kahl-Nieke, Bärbel.
In: CLIN ORAL INVEST, Vol. 27, No. 2, 02.2023, p. 631-643.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Retrospective investigation of the 3D effects of the Carriere Motion 3D appliance using model and cephalometric superimposition
AU - Schmid-Herrmann, Carmen
AU - Delfs, Jesper
AU - Mahaini, Luai
AU - Schumacher, Eliane
AU - Hirsch, Christian
AU - Köhne, Till
AU - Kahl-Nieke, Bärbel
PY - 2023/2
Y1 - 2023/2
N2 - OBJECTIVES: Carriere Motion 3D™ appliance (CMA) represents a method for molar distalization and correction of class II malocclusion. The aim was to investigate the 3D effects of the CMA by superimposing digital models and cephalometric X-rays.MATERIALS AND METHODS: We retrospectively examined 16 patients treated with CMA in combination with class II elastics. We compared digitized models and cephalometric X-rays of records taken before therapy and after the removal of CMA. The records were superimposed to assess the skeletal and dentoalveolar changes. The results of the cephalometric X-ray analysis were compared to an untreated age- and gender-matched sample.RESULTS: Class II occlusion was corrected after 11.85 ± 4.70 months by 3.45 ± 2.33 mm. The average distalization of the upper first molars was 0.96 ± 0.80 mm. The analysis of the cephalometric X-rays confirmed a distalization of the upper first molars with distal tipping and revealed a mesialization of the lower first molars of 1.91 ± 1.72 mm. Importantly, CMA resulted in a mild correction of the skeletal class II relationship (ANB: - 0.71 ± 0.77°; Wits: - 1.99 ± 1.74 mm) and a protrusion of the lower incisors (2.94 ± 2.52°). Compared to the untreated control group, there was significant distalization of the upper first molars and canines with mesialization and extrusion of the lower first molars.CONCLUSION AND CLINICAL RELEVANCE: CMA is an efficient method for treating class II malocclusions. However, the class II correction is only partially caused by a distalization of the upper molars.
AB - OBJECTIVES: Carriere Motion 3D™ appliance (CMA) represents a method for molar distalization and correction of class II malocclusion. The aim was to investigate the 3D effects of the CMA by superimposing digital models and cephalometric X-rays.MATERIALS AND METHODS: We retrospectively examined 16 patients treated with CMA in combination with class II elastics. We compared digitized models and cephalometric X-rays of records taken before therapy and after the removal of CMA. The records were superimposed to assess the skeletal and dentoalveolar changes. The results of the cephalometric X-ray analysis were compared to an untreated age- and gender-matched sample.RESULTS: Class II occlusion was corrected after 11.85 ± 4.70 months by 3.45 ± 2.33 mm. The average distalization of the upper first molars was 0.96 ± 0.80 mm. The analysis of the cephalometric X-rays confirmed a distalization of the upper first molars with distal tipping and revealed a mesialization of the lower first molars of 1.91 ± 1.72 mm. Importantly, CMA resulted in a mild correction of the skeletal class II relationship (ANB: - 0.71 ± 0.77°; Wits: - 1.99 ± 1.74 mm) and a protrusion of the lower incisors (2.94 ± 2.52°). Compared to the untreated control group, there was significant distalization of the upper first molars and canines with mesialization and extrusion of the lower first molars.CONCLUSION AND CLINICAL RELEVANCE: CMA is an efficient method for treating class II malocclusions. However, the class II correction is only partially caused by a distalization of the upper molars.
U2 - 10.1007/s00784-022-04768-4
DO - 10.1007/s00784-022-04768-4
M3 - SCORING: Journal article
C2 - 36355224
VL - 27
SP - 631
EP - 643
JO - CLIN ORAL INVEST
JF - CLIN ORAL INVEST
SN - 1432-6981
IS - 2
ER -