Protrusive facial deformities, characterized by the forward displacement of the teeth and/or jaws beyond the normal range, affect a considerable portion of the population. The manifestations and morphological mechanisms of protrusive facial deformities are complex and diverse, requiring orthodontists to possess a high level of theoretical knowledge and practical experience in the relevant orthodontic field. To further optimize the correction of protrusive facial deformities, this consensus proposes that the morphological mechanisms and diagnosis of protrusive facial deformities should be analyzed and judged from multiple dimensions and factors to accurately formulate treatment plans. It emphasizes the use of orthodontic strategies, including jaw growth modification, tooth extraction or non-extraction for anterior teeth retraction, and maxillofacial vertical control. These strategies aim to reduce anterior teeth and lip protrusion, increase chin prominence, harmonize nasolabial and chin-lip relationships, and improve the facial profile of patients with protrusive facial deformities. For severe skeletal protrusive facial deformities, orthodontic-orthognathic combined treatment may be suggested. This consensus summarizes the theoretical knowledge and clinical experience of numerous renowned oral experts nationwide, offering reference strategies for the correction of protrusive facial deformities.
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http://dx.doi.org/10.1038/s41368-024-00338-4 | DOI Listing |
J Adv Prosthodont
February 2025
Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Hangzhou, Zhejiang, China.
Purpose: This study aimed to evaluate the accuracy of the ultrasonic jaw tracking system by comparing with the conventional electronic system in recording condylar movements.
Materials And Methods: Twenty-six subjects with normal occlusion participated in the study. The CADIAX 4 and Jaw Motion Analyzer (JMA) systems were used to record condylar movement trajectories during mandibular border movements (protrusive/retrusive, lateral, and wide mouth opening), with each movement repeated three times.
Shanghai Kou Qiang Yi Xue
December 2024
Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine; College of Stomatology, Shanghai Jiao Tong University; National Center for Stomatology; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology; Shanghai Research Institute of Stomatology. Shanghai 200011, China. E-mail:
Purpose: To evaluate the soft tissue position changes in the lower 1/3 of face after application of the vestibular shield for correction of mouth dyspnea.
Methods: A total of 32 pediatric patients wearing vestibular shield appliances for mouth breathing correction were reviewed, and the changes of upper and lower lip positions as well as chin position before and after appliance treatment were compared and analysed. GraphPad Prism 6.
Anat Cell Biol
February 2025
Department of Otolaryngology-Head and Neck Surgery, Tohoku University Graduate School of Medicine, Sendai, Japan.
There is little information regarding whether the styloid process "inserts" deeply into the temporal bone petrosa. We examined the involvement of Reichert's cartilage (RC) in the petrosa using sagittal or horizontal histological sections of the heads from 17 near-term fetuses (25-40 weeks). The cranial part of RC usually carried two short branches or protrusions (T-shaped appearance).
View Article and Find Full Text PDFJ Plast Reconstr Aesthet Surg
January 2025
Plastic Surgery Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. Electronic address:
Background: The correction of lying ear is a surgical procedure that can enhance facial aesthetics. In Asian culture, prominent ears are often associated with wealth, and ear protrusion surgery is frequently requested to achieve a slimmer facial appearance. Little research has been performed on the methods of lying ear correction.
View Article and Find Full Text PDFDiagnostics (Basel)
February 2025
Laboratory of Functional Anatomy of the Stomatognathic System (LAFAS), Department of Biomedical Sciences for Health, University of Milan, 20133 Milan, Italy.
The characterization of facial sexual dimorphic patterns in healthy populations serves as valuable normative data to tailor functionally effective surgical treatments and predict their aesthetic outcomes and to identify dysmorphic facial traits related to hormonal disorders and genetic syndromes. Although the analysis of facial sexual differences in juveniles of different ages has already been investigated, few studies have approached this topic with three-dimensional (3D) geometric morphometric (GMM) analysis, whose interpretation may add important clinical insight to the current understanding. This study aims to investigate the location and extent of facial sexual variations in juveniles through a spatially dense GMM analysis.
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