Achieving precise, comfortable, and asymmetric maxillary expansion remains a clinical challenge in orthodontics. Conventional expanders, such as the Hyrax, depend on manual activation by caregivers, ...
Every night before bedtime, my daughter tilts back her head so that a pair of metal plates inside her mouth can be cranked apart another quarter of a millimeter. We turn a jackscrew with a wire tip; ...
1 Department of Radiation Oncology, Gansu Provincial Maternity and Child Health Hospital, Lanzhou, China 2 The First School of Clinical Medicine, Lanzhou University, Lanzhou, China Purpose: This study ...
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