Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Introduction: This study aimed to analyze midfacial skeletal shape asymmetry in skeletal Class III patients using a three-dimensional spatially-dense method.
Methods: Sixty skeletal Class III patients' cone-beam computed tomography images were retrospectively enrolled and divided into three groups according to occlusal plane inclination (OPI) and mandibular lateral deviation (MD). A spatially-dense template of the anterior outer surface of the midfacial skeleton was established and validated. Through template registration, a large number of homologous quasi-landmarks of the midfacial skeleton were automatically identified. After robust superimposition of the original and mirror images, the root-mean-square error was calculated as the asymmetry index (AI). Color-coded maps were generated to visually display the location and magnitude of the asymmetry.
Results: The median overall midfacial skeletal AIs of group 1 (with OPI and MD), group 2 (with MD without OPI), and group 3 (without OPI or MD) were 1.55, 1.27, and 1.19, respectively. The overall AI of group 1 was significantly higher than that of group 2 (P < .05) and group 3 (P < .01). Within group 1, the AI of the alveolar process was significantly higher than that of other regions.
Conclusions: The three-dimensional spatially-dense method allows quantitative and visual analysis of shape asymmetry of the midfacial skeleton. Skeletal Class III patients with occlusal plane inclination and mandibular lateral deviation exhibit a significantly greater degree of midfacial skeletal asymmetry, with the alveolar process identified as the main asymmetric site of their midfacial skeleton.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1093/ejo/cjaf010 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surgical Measures Improving Functional Limitations of the Masticatory System, Aesthetic Deficits, and Skeletal Malformations in Neurofibromatosis Type 1-associated Hemifacial Diffuse Plexiform Neurofibroma Complicated by Rapidly Growing Midfacial Peripheral Nerve Sheath Tumor.
Cancer Diagn Progn
September 2025
Institute of Neuropathology, Eppendorf University Hospital, University of Hamburg, Hamburg, Germany.
Background/aim: Neurofibromatosis type 1 (NF1) is a genetic disorder characterized by the development of multiple tumors, including plexiform neurofibromas (PNFs), which often affect the craniofacial region and cause significant functional and aesthetic impairments. This report presents long-term surgical management of a patient with hemifacial diffuse PNF, complicated by the emergence of a rapidly enlarging midfacial tumor.
Case Report: The patient was treated for hemifacial invasive diffuse plexiform neurofibroma.
Decoding the maxillary morphological mechanism of mid-face depression or protrusion by an interpretable machine learning-assisted approach in an Asian female population.
J Craniomaxillofac Surg
August 2025
State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China. Electronic address:
For morphological assessments and treatment planning for the midface, the conventionally used measurement-based diagnosis is not potent enough to decode the complexity of craniofacial configuration. A more comprehensive assessment system using a machine learning-assisted approach is in need. In this study, the subnasale and maxilla positions were assessed in relation to the upper- and mid-facial structures in 1293 Asian females.
View Article and Find Full Text PDFCanine pillar bone bearing traction method of skull external fixator combined with nickel-titanium memory alloy spring for unilateral cleft lip and palate with severe facial skeletal hypoplasia.
Afr Health Sci
September 2024
Department of Oral, Cangzhou Medical College, Cangzhou, China.
Background: For unilateral cleft lip and palate severe midfacial skeletal dysplasia, external skull fixator combined with nickel titanium memory alloy spring was used to treat canine pillar bone bearing traction.
Methodology: Patients (n = 200) with unilateral cleft lip and palate and severe midfacial skeletal hypoplasia who were treated in our hospital within three years were divided into control group (treated with trans suture traction osteogenesis) while the observation group was treated with skull external fixator combined with nickel titanium memory alloy spring supporting force traction of canine bone.
Results: After applying significantly different traction forces to the maxillary tissues on both sides of the patient, the patient was treated with appropriate traction correction, orthodontic treatment and moderate traction on the facial arch to effectively reduce the recurrence of the disease after surgery.
Medial Mandibular Angle as a Potential Donor Site in Orthognathic Surgery for Skeletal Class II Patient.
J Craniofac Surg
August 2025
Craniomaxillofacial Plastic and Cosmetic Center, The Bethune Hospital of Stomatology, Jilin University, Changchun, Jilin, China.
This study proposes a novel approach for skeletal class II patients with insufficient maxillary and mandibular bone stock. During sagittal split ramus osteotomy, the medial aspect of the bilateral mandibular angles can serve as a donor site for interpositional bone grafting to fill the gap created by maxillary movement. Through preoperative digital design for 3D imaging analysis and surgical simulation, this technique eliminates the need for a secondary surgical site or bone substitutes, providing additional autogenous bone blocks to address the deficiency after Le Fort I advancement.
View Article and Find Full Text PDFBackground: Maternal nutrition is increasingly recognized as a modulator of offspring skeletal development. While genetics has long been considered the primary determinant of craniofacial morphology, emerging evidence suggests that prenatal and early postnatal dietary exposures also influence facial morphology. However, how maternal diet differentially affects male and female craniofacial structures remains unclear.
View Article and Find Full Text PDF