Previous research on computer-assisted jawbone reduction for mandibular fracture surgery has only focused on the relationship between fractured sections disregarding proper dental occlusion with the maxilla. To overcome malocclusion caused by overlooking dental articulation, this study aims to provide a model for jawbone reduction based on dental occlusion. After dental landmarks and fracture sectional features are extracted, the maxilla and two mandible segments are aligned first using the extracted dental landmarks. A swarm-based optimization is subsequently performed by simultaneously observing the fracture section fitting and the dental occlusion condition. The proposed method was evaluated using jawbone data of 12 subjects with simulated and real mandibular fractures. Results showed that the optimized model achieved both accurate jawbone reduction and desired dental occlusion, which may not be possible by existing methods.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11574221 | PMC |
http://dx.doi.org/10.1007/s10278-024-01014-z | DOI Listing |
Oral Maxillofac Surg Clin North Am
January 2025
Department of Maxillofacial Prosthetics and Prosthodontics, Naval Medical Center San Diego California, USA.
Computer-guided full-arch dental rehabilitation, which is highly technique-sensitive, benefits from advancements in 3-dimensional-printed guides and open-source software. Critical pre-surgical planning includes patient selection, health history evaluations, and detailed imaging like cone beam computed tomography scans. Various surgical guides-freehand, static, dynamic, stackable, and interchangeable-are used based on case complexity, with stackable guides improving workflow efficiency.
View Article and Find Full Text PDFBMC Oral Health
January 2025
Department of Stomatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde, Foshan), Foshan, 528308, Guangdong, China.
Background: A comprehensive analysis of the occlusal plane (OP) inclination in predicting anteroposterior mandibular position (APMP) changes is still lacking. This study aimed to analyse the relationships between inclinations of different OPs and APMP metrics and explore the feasibility of OP inclination in predicting changes in APMP.
Methods: Overall, 115 three-dimensional (3D) models were reconstructed using deep learning-based cone-beam computed tomography (CBCT) segmentation, and their accuracy in supporting cusps was compared with that of intraoral scanning models.
Aust Vet J
January 2025
Owner of Advanced Vetcare, Melbourne, Victoria, Australia.
Mandibular and maxillary fractures are common in small animals and present significant challenges for repair due to the intricate anatomical features involved. This retrospective case series describes a technique for achieving rigid open mouth maxillomandibular fixation using interarch wiring while maintaining correct alignment between the upper and lower teeth with polymethylmethacrylate (PMMA) moulds of the canine teeth for treating maxillomandibular fractures in cats. The study includes a description of the postoperative outcomes and complications encountered.
View Article and Find Full Text PDFBMJ Open
January 2025
Population & Reproductive Health Section, Department of Community Health Sciences, Aga Khan University, Karachi, Pakistan
Introduction: Iron deficiency anaemia (IDA) and dental caries are prevalent diseases among Pakistani children. Limited research has been done to explore their association with permanent teeth. Given the caries susceptibility of permanent first molars and their role in the development of ideal occlusion, this study aimed to estimate caries frequency in these molars and assess its association with IDA in 7-12 year-old children.
View Article and Find Full Text PDFNutrients
December 2024
Department of Preventive Dentistry, Faculty of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University, Okayama 700-8558, Japan.
A high prognostic nutritional index (PNI) is associated with good prognosis in patients with esophageal cancer. However, nutritional status often decreases during neoadjuvant therapy. Functional tooth units (FTUs) provide an index for the status of posterior occlusal support.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!