Objective: The aim of the study was to analyze the characteristics and changes in mandibular condylar motion in patients with skeletal Class III malocclusion. Methods: Using a 3D motion analyzer, mandibular movements were recorded in 9 patients with skeletal Class III malocclusion and 22 control subjects with Angle Class I jaw relationships. Results: Class III patients had a similar interincisor point displacement but a signi cantly reduced displacement of both condyles on the sagittal and frontal planes, with smaller translation paths than control subjects (right −9.4 mm; left −4.8 mm). The overall condylar rotation component was larger in Class III patients (right +8.8%; left +7.3%). The largest inter-group signi cant di erences were observed in the rst 10% of mouth opening, in which Class III patients had a larger rotating component than control subjects (+20%, p < 0.01). Conclusions: Condylar motion was reduced in skeletal Class III patients, in particular in the translational path.
Three-dimensional mandibular motion in skeletal Class III patients / Ugolini, A; Mapelli, A; Segu', M; Zago, M; Codari, M; Sforza, C. - In: CRANIO. - ISSN 0886-9634. - 36:2(2018), pp. 113-120. [http://dx.doi.org/10.1080/08869634.2017.1299830]
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