Wenli Huang, Lirong Dong, Shaoyang Yu, Yao Zheng, Haoting Wu, Chenzhi Li, Yingyue Zhang, Qiang Zhang, Xiao Yan, Tao Lv, Xiao Yuan
OBJECTIVE: The modified clear twin-block aligner (CTBA) was developed to provide a mandibular advancement appliance for the treatment of mandibular retrognathia. The objective of this study was to analyse the stress distribution changes of CTBA with 45°, 60° and 70° bite blocks. MATERIAL AND METHODS: A three-dimensional model of the craniomaxillofacial bones and teeth was generated from a spiral computed tomography (CT) scan. The models of the articular disc, capsule, periodontal ligament and CTBA were constructed mathematically...
December 2023: International Orthodontics