Related Experiment Video
Updated: Jun 8, 2026

Finite Element Analysis Model for Assessing Expansion Patterns from Surgically Assisted Rapid Palatal Expansion
Published on: October 20, 2023
[The fabrication and clinical application of semi-fixed mandibular lingual arch expansion appliance]
Shi-tong Jiang1, Hua Wang, Zhong-jun An
1Dept. of Orthodontics, Donggang District People's Hospital of Rizhao City, Rizhao 276800, China.
Abstract:
Semi-fixed mandibular lingual arch expansion appliance is composed of a mandibular molar band, a keyway and arch expansion spring. The arch expansion spring are used to expand maxillary arch symmetrically or asymmetrically when bolts of the two ends are inset into keyways. Dental arch expansion appliance for 25 patients with mandibular arch stenosis showed that semi-fixed mandibular lingual arch expansion had good effect and could be used to expand mandibular arch.
