Introduction: Maxillary surgery alone can be proposed for the surgical management of class III malocclusion, but anticipating outcomes for the labiomental muscle complex is challenging due to the mandibular autorotation phenomenon. The objective of this study was to quantify the mandibular and labiomental movements induced by maxillary osteotomy alone in the management of class III malocclusion according to different clinical and surgical variables.
Methods: The post-operative changes in mandibular and labiomental shapes were studied by geometric morphometry from the pre- and post-operative lateral cephalometric radiograph of 25 patients. The explanatory variables tested were maxillary advancement, maxillary rotation, and divergence.
Results: Soft tissues repositioning are different from postoperative mandibular repositioning after maxillary osteotomy. Neuromuscular adjustments of mandible depend on divergence and the maxillary rotation. Labiomental response only depends on divergence.
Conclusion: The surgical procedure does not have the same bone-related and musculocutaneous effects on patients with the same class III malocclusion. It is therefore essential for surgeons to understand the effects of their procedure on musculocutaneous tissues in order to best anticipate post-operative outcomes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10561870 | PMC |
| http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0292391 | PLOS |
Publication Analysis
Top Keywords
Similar Publications
An NIR-II Two-Photon Excitable AIE Photosensitizer for Precise and Efficient Treatment of Orthotopic Small-Size Glioblastoma.
Adv Mater
December 2024
School of Science and Engineering, Shenzhen Institute of Aggregate Science and Technology, The Chinese University of Hong Kong (CUHK-Shenzhen), Shenzhen, Guangdong, 518172, P. R. China.
The existence of residual small-size tumors after surgery is a major factor contributing to the high recurrence rate of glioblastoma (GBM). Conventional adjuvant therapeutics involving both chemotherapy and radiotherapy usually exhibit unsatisfactory efficacy and severe side effects. Recently, two-photon photodynamic therapy (TP-PDT), especially excited by the second near-infrared (NIR-II) light, offers an unprecedented opportunity to address this challenge, attributed to its combinational merits of PDT and TP excitation.
View Article and Find Full Text PDFFactors associated with poor hip flexion range of motion after total hip arthroplasty in patients with ankylosing spondylitis: a retrospective study on 538 consecutive hips.
J Orthop Surg Res
December 2024
Department of Orthopeadics, the First Medical Centre, Chinese PLA General Hospital, Beijing, China.
Background: This study aimed to report the mid-term functional outcomes of total hip arthroplasty (THA) for the treatment of advanced hip involvement in ankylosing spondylitis (AS) and identify the factors associated with poor hip flexion range of motion (ROM) after THA in patients with AS.
Methods: We retrospectively investigated the mid-term functional outcomes in 313 AS patients (538 hips) who underwent primary THA from 2012 to 2017, with a mean follow-up of 7 years (range, 4-9 years). Postoperative functional outcomes were assessed by hip flexion ROM, Harris hip score (HHS), and the Western Ontario and McMaster Universities Arthritis Index (WOMAC).
Identification of two distinct clusters in membranous lupus nephritis patients: recognition of a high-risk profile based on unsupervised analysis.
Nephrol Dial Transplant
December 2024
Department of Nephrology, The First Affiliated Hospital of Sun Yat-Sen University, People's Republic of China.
Background And Hypothesis: Membranous lupus nephritis (MLN) traditionally includes class V (alone) and may be associated with other classes (III or IV). The clinical, therapeutic and prognosis relevance of the classification remains controversial.
Methods: A retrospective cohort of 412 MLN patients from the First Affiliated Hospital of Sun-Yat Sen University was followed for a median of 65.
Deciphering roles of nine hydrophobins (Hyd1A-F and Hyd2A-C) in the asexual and insect-pathogenic lifecycles of Beauveria bassiana.
Microbiol Res
December 2024
Institute of Microbiology, College of Life Sciences, Zhejiang University, Hangzhou 310058, China. Electronic address:
Hydrophobins are small amphiphilic proteins that confer filamentous fungal hydrophobicity needed for hyphal growth, development, dispersal and adhesion to host and substrata. In insect-pathogenic Beauveria bassiana, nine hydrophobins (class I Hyd1A-F and class II Hyd2A-C) were proven to localize on the cell walls of aerial hyphae and conidia but accumulate in the vacuoles and vesicles of submerged hyphae and blastospores, respectively. Conidial hydrophobicity, adhesion to insect cuticle, virulence via normal cuticle infection and dispersal potential were significantly more reduced by the hyd1A deletion leading to complete ablation of slender rodlets on conidial coat than the hyd1B deletion, which caused a failure to assemble morphologically irregular rodlets into orderly bundles.
View Article and Find Full Text PDFMultidisciplinary Treatment of A Class III Patient With Giant Open Bite Secondary to Macroglossia.
J Craniofac Surg
October 2024
State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Center of Orthognathic and TMJ Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan.
Skeletal Class III malocclusion deformity is one of the most common maxillofacial malocclusions in East Asia and is either due to maxillary retrusion, mandibular protrusion, or both. It could cause functional and aesthetic problems. This deformity could be attributed to either hereditary or environmental factors or both.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!