vitamin-c-assisted-fenton-oxidation-improves-oxidative-killing

Vitamin C-Assisted Fenton Oxidation Improves Oxidative Killing of <em>Helicobacter pylori In Vitro</em>

Helicobacter pylori infection remains a major global health burden, and the increasing prevalence of antibiotic resistance underscores the need for ...

West China Hospital of Stomatology, Sichuan University

: Mid-term skeletal stability after bimaxillary orthognathic surgery in patients with facial asymmetry and a relatively normal sagittal skeletal relationship (ANB ≈ 1-4°) remains underreported. This study aimed to determine the three-dimensional characteristics and temporal changes in postoperative skeletal remodeling and symmetry maintenance in such patients. : This retrospective case series included 25 patients (ANB ≈ 1-4°) undergoing bimaxillary orthognathic surgery. Three-dimensional computed tomography was performed preoperatively (T0), immediately postoperatively (T1), and at 6-12 months postoperatively (T2) to quantify bilateral condylar, ramus, mandibular body, maxillary parameters, and occlusal cant. Statistical analyses were performed using appropriate statistical methods for paired and repeated-measures designs. : Preoperatively, the long side exhibited significantly greater condylar volume, ramus height, and mandibular body length than the short side (all  < 0.05). Postoperatively, a "long-side reduction and short-side augmentation" strategy significantly reduced or reversed most bilateral differences, with a marked improvement in occlusal plane cant ( < 0.01). At T2, only mild bone remodeling was observed, with no significant loss of postoperative skeletal symmetry. The occlusal plane remained stable. : In patients without marked sagittal discrepancies, bimaxillary orthognathic surgery effectively restores transverse and vertical skeletal symmetry. Mid-term stability is well maintained over 6-12 months, with only mild condylar and ramus remodeling, suggesting adaptive remodeling rather than relapse.

Yuhung Lin

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