(1) Background: This study explored the effects of modified anterior maxillary subapical osteotomy (AMSO) on facial profile changes in patients with bimaxillary protrusion. (2) Methods: Cephalograms of patients were collected preoperatively and over 2 months postoperatively. The following landmarks were recorded: pronasale (Prn), subnasale (Sn), labrale superius (Ls), anterior nasal spine (ANS), and incisor superius (Is). The following distances and angles were measured: ANS-Prn, ANS-Sn, ANS-Ls, Is-Sn, Is-Ls, SNA angle, and nasolabial (NLA) angle. (3) Results: Is and ANS were significantly retracted by 7.3 and 2.3 mm, respectively. Soft tissue landmarks (Prn, Sn, and Ls) were significantly retracted (1.2, 1.6, 4.4 mm, respectively). Postoperative changes in soft/hard tissue ratios were 0.54, 0.72, 0.31, and 0.60 for Prn/ANS, Sn/ANS, ANS/Is, and Ls/Is, respectively. The NLA angle was increased significantly by 7.1°. (4) Conclusions: The horizontal soft/hard tissue ratios of Sn/Is, ANS/Is, and Ls/Is were 0.22, 0.31, and 0.60, respectively. The NLA angle was increased significantly by 7.1°. The modified AMSO provides an increased blood supply, allows for direct vision, and results in fewer complications than other AMSO methods.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8954482 | PMC |
| http://dx.doi.org/10.3390/jpm12030508 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Comparison of AI-assisted cephalometric analysis and orthodontist-performed digital tracing analysis.
Prog Orthod
October 2024
Faculty of Dentistry, Department of Orthodontics, Van Yüzüncü Yıl University, Van, Turkey.
Background: The aim of this study was to compare and evaluate three AI-assisted cephalometric analysis platforms-CephX, WeDoCeph, and WebCeph-with the traditional digital tracing method using NemoCeph software.
Material And Method: A total of 1500 lateral cephalometric films that met the inclusion criteria were classified as Class I, Class II, and Class III. Subsequently, 40 patients were randomly selected from each class.
A Comparison of Esthetic Preferences on Female Skeletal Class II Alterations among Laypeople of Different Facial Profiles.
Eur J Dent
July 2024
Department of Orthodontics, Faculty of Dentistry, Chulalongkorn University, Henri-Dunant Road, Wangmai, Pathumwan, Bangkok, Thailand.
Objectives: This study aimed to investigate the influences of assessors' different personal profiles on the esthetic perception of Class II facial profile corrections and the agreement between profile and silhouette images.
Materials And Methods: A profile photo of a female with skeletal Class II was digitally altered into three profile and three silhouette images (most pronounced Class II division 1 characteristic, more retruded upper lip position, and more protruded mandibular position). Ninety-six laypeople from three facial profile groups (straight, convex, and concave profiles) chose these images for facial attractiveness.
Impact of Tongue-in-Groove Technique on Smile and Lip Position: A Comparative Analysis with and without Septal Extension Graft.
Facial Plast Surg
July 2024
Department of Otolaryngology, Tehran University of Medical Sciences, Tehran, Iran.
This study was conducted to compare the outcomes of the tongue-in-groove (TIG) technique with and without septal extension graft (SEG) on smile and lip position in rhinoplasty. Fifty-eight rhinoplasty patients, treated at a tertiary referral center between 2020 and 2022, underwent preoperative and 12-month postoperative evaluations, using the Standardized Cosmesis and Health Nasal Outcomes Survey (SCHNOS) and the visual analog scale (VAS). The preoperative and 12-month postoperative photographs were analyzed using Adobe Photoshop to assess changes in lip and smile positions.
View Article and Find Full Text PDFIncisor and Soft Tissue Characteristics of Adult Bimaxillary Protrusion Patients among Different Skeletal Anteroposterior Classifications.
Diagnostics (Basel)
May 2024
Orthodontic Section, Department of Preventive Dentistry, Faculty of Dentistry, Prince of Songkla University, Hat Yai 90110, Songkhla, Thailand.
The objective of this study was to investigate the upper incisors (U1), lower incisors (L1), and soft tissue profiles of bimaxillary protrusion (BM) adult patients among skeletal Class I (BM1), II (BM2) and III (BM3). Understanding these characteristics would be useful for incisor and lip diagnostics in different skeletal classifications. Fourteen linear and twelve angular variables of the incisors and lips were evaluated in 214 lateral cephalograms (BM1 = 91, BM2 = 84, BM3 = 39).
View Article and Find Full Text PDFElectrospinning of poly(ethylene oxide)/glass hybrid nanofibres for anticounterfeiting encoding.
Luminescence
April 2024
Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia.
The use of photochromism to increase the credibility of consumer goods has shown great promise. To provide mechanically dependable anticounterfeiting nanofibres, it has also been critical to improve the engineering processes of authentication patterns. Mechanically robust and photoluminescent electrospun poly(ethylene oxide)/glass (PGLS) nanofibres (150-350 nm) immobilized with nanoparticles of lanthanide-doped aluminate (NLA; 8-15 nm) were developed using electrospinning technology for anticounterfeiting purposes.
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!