Oral surgery, oral medicine, oral pathology and oral radiology · 2026
Integrated imaging-CFD analysis to evaluate digitally guided stabilization splints and disc repositioning in mandibular retrognathia with bilateral ADDWoR.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
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Li Juan, Wang Mengyi, Yang Zhenze, Qi Yezi, Lin Jun
Аннотация
OBJECTIVE: Bilateral anterior disc displacement without reduction (ADDWoR) frequently accompanies mandibular retrognathia. Comprehensive evaluations of stabilization splints regarding TMJ repositioning, craniofacial remodeling, and upper airway hemodynamics remain scarce. This study evaluated the clinical efficacy of digitally guided stabilization splints (GSS) combined with modified open suturing (OSu) using MRI, CBCT, and computational fluid dynamics (CFD).
STUDY DESIGN: Thirty-five patients with bilateral ADDWoR and mandibular retrognathia were divided into OSu-GSS (n = 20) and conventional stabilization splint (SS, n = 15) groups. TMJ structures, craniofacial characteristics, and upper airway functions were analyzed before and 6 months post-treatment.
RESULTS: At 6 months, the GSS-OSu group exhibited significant backward and upward disc repositioning (P < .001) alongside increased anteroposterior condylar diameters (P < .001), indicating favorable osteogenic remodeling. Craniofacial analysis showed significant counterclockwise rotation and anterior mandibular advancement (P < .01). Furthermore, CFD analysis revealed a significant decrease in local pressure drops within the lower oropharynx and hypopharynx (P < .05), signifying reduced airway resistance.
CONCLUSIONS: In patients with bilateral ADDWoR and mandibular retrognathia, GSS-OSu effectively restores TMJ disc position, promotes condylar remodeling, and improves mandibular retrognathia via counterclockwise advancement. Multidimensional evaluations demonstrate concurrent improvements in maxillofacial morphology and upper airway ventilation, providing robust clinical evidence for GSS-OSu therapy.
STUDY DESIGN: Thirty-five patients with bilateral ADDWoR and mandibular retrognathia were divided into OSu-GSS (n = 20) and conventional stabilization splint (SS, n = 15) groups. TMJ structures, craniofacial characteristics, and upper airway functions were analyzed before and 6 months post-treatment.
RESULTS: At 6 months, the GSS-OSu group exhibited significant backward and upward disc repositioning (P < .001) alongside increased anteroposterior condylar diameters (P < .001), indicating favorable osteogenic remodeling. Craniofacial analysis showed significant counterclockwise rotation and anterior mandibular advancement (P < .01). Furthermore, CFD analysis revealed a significant decrease in local pressure drops within the lower oropharynx and hypopharynx (P < .05), signifying reduced airway resistance.
CONCLUSIONS: In patients with bilateral ADDWoR and mandibular retrognathia, GSS-OSu effectively restores TMJ disc position, promotes condylar remodeling, and improves mandibular retrognathia via counterclockwise advancement. Multidimensional evaluations demonstrate concurrent improvements in maxillofacial morphology and upper airway ventilation, providing robust clinical evidence for GSS-OSu therapy.