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https://www.readbyqxmd.com/read/28538070/one-stage-treatment-for-adult-patients-with-crouzonoid-appearance-by-orthognathic-and-face-contouring-surgery
#1
Byung Jun Kim, Hahn Sol Bae, Yoonho Lee
Crouzon syndrome is a rare genetic disorder with autosomal-dominant inheritance that shows a triad of hallmark characteristics: craniosynostosis, exophthalmos, and midface retrusion. General treatment protocol for patients with Crouzon syndrome has already been established, but there is no standard treatment strategy for adult patients with Crouzonoid appearance. The authors present clinical patients of 1-stage orthognathic and face contouring surgery to achieve functional and aesthetic improvement.One-stage surgery was performed in adult patients with Crouzonoid appearance without a history of facial surgery...
May 19, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28504986/cosmetic-bone-contouring
#2
Regina Rodman
PURPOSE OF REVIEW: In recent years, cosmetic bone contouring surgery has become increasingly popular, especially in East Asian countries. These procedures are also being requested by patients in the United States at an increasing rate. The purpose of this study is to provide an overview of what is involved with these procedures and their potential complications. RECENT FINDINGS: In some cultures, a wide jaw and a square face are aesthetically unpleasing, whereas an ovoid or 'melon seed face' is thought to be feminine, delicate and beautiful...
May 12, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28500875/upper-airway-changes-after-mandibular-setback-and-or-advancement-genioplasty-in-obese-patients
#3
Wen Du, Dongming He, Yiyao Wang, Hanghang Liu, Chuhang Liao, Wei Fei, En Luo
PURPOSE: Orthognathic surgeries, such as bilateral sagittal split ramus osteotomy (BSSO) and genioplasty, can influence the pharyngeal airway space (PAS) and this has been supported by previous studies. The purpose of this study was to assess changes of the PAS in patients with a high body mass index (BMI) likely to have narrow airways before and after setback BSSO with or without advancement genioplasty surgery by 3-dimensional computed tomography. MATERIALS AND METHODS: Thirty-five adults with a BMI of at least 24...
April 19, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28466191/operative-time-blood-loss-hemoglobin-drop-blood-transfusion-and-hospital-stay-in-orthognathic-surgery
#4
Ra'ed Ghaleb Salma, Fahad Mohammed Al-Shammari, Bishi Abdullah Al-Garni, Mohammed Abdullah Al-Qarzaee
PURPOSE: This study was conducted to evaluate the operative time, blood loss, hemoglobin drop, blood transfusion, and length of hospital stay in orthognathic surgery. METHODS: A 10-year retrospective analysis was performed on patients who underwent bilateral sagittal split osteotomy (with or without genioplasty), Le Fort I osteotomy (with or without genioplasty), or any combination of these procedures. A total of 271 patients were included. RESULTS: The age range was 17 to 49 years, with a mean age of 24...
June 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28434895/the-use-of-endoprotheses-for-patients-with-complex-asymmetry-a-clinical-case-study
#5
Mónica Umana, Thierry Piral
Facial asymmetry requires multidisciplinary management. In some cases, predictable problems due to congenital abnormalities can be corrected by early orthodontic treatment. Orthodontics is nevertheless often part of an orthosurgical treatment plan. The solutions are conventional and familiar: maxillomandibular rotation osteotomy and genioplasty. Many cases can be treated in this way, but there is often persistent residual asymmetry due to loss of volume that is not corrected by these techniques. The use of maxillo-acial endoprostheses designed on the basis of three-dimensional craniofacial analyses can rebalance volumes simply and with due regard to the patient's anatomy...
April 20, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28409207/the-precise-repositioning-instrument-for-genioplasty-and-a-three-dimensional-printing-technique-for-treatment-of-complex-facial-asymmetry
#6
Lin Wang, Dan Tian, Xiumei Sun, Yanju Xiao, Li Chen, Guomin Wu
BACKGROUND: Facial asymmetry is very common in maxillofacial deformities. It is difficult to achieve accurate reconstruction. With the help of 3D printing models and surgical templates, the osteotomy line and the amount of bone grinding can be accurate. Also, by means of the precise repositioning instrument, the repositioning of genioplasty can be accurate and quick. In this study, we present a three-dimensional printing technique and the precise repositioning instrument to guide the osteotomy and repositioning, and illustrate their feasibility and validity...
April 13, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28364902/orthodontic-and-surgical-management-of-a-patient-with-severe-skeletal-class-ii-deformity-and-facial-asymmetry-a-case-report-with-a-5-year-follow-up
#7
Xiang Gao, Tao Wang, Jinlin Song
In this case report, we present the orthodontic and surgical management of an 18-year-old girl who had a severe craniofacial deformity, including maxillary prognathism, vertical maxillary excess (gummy smile), mandibular retrognathism, receding chin, and facial asymmetry caused by unilateral temporomandibular joint ankylosis. For correction of the facial asymmetry, the patient's right mandibular ramus and body were lengthened via distraction osteogenesis after 5 months of preoperative orthodontic therapy. Subsequently, extraction of 4 first premolars, bimaxillary anterior segmental osteotomy, and genioplasty were simultaneously performed in the second-stage operation to correct the skeletal deformities in the sagittal and vertical planes...
April 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28299271/three-dimensional-printer-assisted-reduction-genioplasty-surgical-guide-fabrication
#8
Seied Omid Keyhan, Alireza Jahangirnia, Hamid Reza Fallahi, Alireza Navabazam, Sina Ghanean
Genioplasty is a common operation to enhance function and appearance of the chin, the most prominent part of the lower third of the face, which has major impact on character impressions and facial beauty. However, since transference of preconfigured accurate treatment plans to patients during operation is difficult, sometimes it can be challenging, especially for inexperienced surgeons. This article represents a simplified technique to perform reduction genioplasty by utilizing a customized genioplasty guide manufactured with three-dimensional printing technology...
July 2016: Annals of Maxillofacial Surgery
https://www.readbyqxmd.com/read/28258532/counterclockwise-maxillomandibular-advancement-a-choice-for-chinese-patients-with-severe-obstructive-sleep-apnea
#9
Silong Wei, Yong Zhang, Xiaojing Guo, Wenwen Yu, Meng Wang, Kan Yao, Hongxia Sun, Hua Zhang, Xiaofeng Lu
PURPOSE: Maxillomandibular advancement (MMA) is an effective alternative for treating severe obstructive sleep apnea (OSA). However, the promotion of MMA in China is limited by many Chinese patients having a convex facial profile. To achieve maximal upper airway enlargement without an esthetic disaster, we added counterclockwise rotation of the maxillomandibular complex (MMC) in the routine MMA. In this paper, we have evaluated the objective and subjective outcomes of this technology...
March 3, 2017: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/28256278/changes-in-natural-head-position-in-response-to-mandibular-advancement
#10
Xiaozhen Lin, Sean P Edwards
We investigated the change in the natural head position and its relation to the change in the mandibular position in patients with mandibular hypoplasia. Forty-one patients treated by orthognathic surgery were divided into three groups: bilateral sagittal split osteotomy (BSSO) advancement (n=8); BSSO advancement with genioplasty (n=12), and Le Fort I osteotomy with BSSO advancement (n=21). Cone-beam computed tomographic (CT) datasets were collected preoperatively and six weeks postoperatively. The natural head position was measured using the craniocervical angle and the distance from the second vertebra to the frontal plane, and the mandibular position was measured using the craniomandibular angle and the distance from the mandible to the frontal plane...
February 27, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28217687/mentolabial-angle-and-aesthetics-a-quantitative-investigation-of-idealized-and-normative-values
#11
Farhad B Naini, Martyn T Cobourne, Umberto Garagiola, Fraser McDonald, David Wertheim
BACKGROUND: This study is a quantitative evaluation of the influence of the mentolabial angle on perceived attractiveness and threshold values of desire for surgery. METHODS: The mentolabial angle of an idealized silhouette male Caucasian profile image was altered incrementally between 84° and 162°. Images were rated on a Likert scale by pretreatment orthognathic patients (n = 75), lay people (n = 75) and clinicians (n = 35). RESULTS: A mentolabial angle of approximately 107° to 118° was deemed the most attractive, with a range of up to 140° deemed acceptable...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28116995/treatment-of-a-class-2-skeletal-malocclusion-with-degenerative-arthritis-of-the-condyles-using-custom-made-temporomandibular-joint-replacements-and-genioplasty
#12
Kersten Webster, Grant McIntyre, Sean Laverick, Philip McLoughlin, Catherine Tothill
This case report presents the use of custom-made temporomandibular joint prostheses in the treatment of a class 2 malocclusion secondary to juvenile idiopathic arthritis. The patient had degeneration of the mandibular condyles with associated arthropathy and dentofacial deformity. Conventional orthognathic treatment was considered, but would not address the arthropathy. The orthognathic movements were accounted for in the design of the prosthesis and the patient's arthralgia, functional limitations and aesthetics were addressed...
March 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/28116432/-partial-recovery-of-thermal-sensory-functions-in-skeletal-class-%C3%A2-patients-undergoing-orthognathic-surgery
#13
Xin-Yu Gu, Jing-Lu Zhang, Dong Lv, Wen-Jing Chen
PURPOSE: To clarify whether trigeminal somatosensory function will be changed after orthodontic treatment as well as after orthognathic surgery. METHODS: A series of 20 patients with a mean age of 20.9±1.74 years were recruited. Thermal quantitative sensory tests were conducted before orthodontic treatment (T0), before orthognathic surgery (T1), 2 months after orthognathic surgery (T2), and 6 months after orthognathic surgery (T3). The cold detection threshold (CDT), cold pain threshold (CPT), warm detection threshold (WDT) and heat pain threshold (HPT) were determined...
October 2016: Shanghai Kou Qiang Yi Xue, Shanghai Journal of Stomatology
https://www.readbyqxmd.com/read/28060198/the-appropriate-retractors-for-genioplasty
#14
Mingcan Zhao, Guomin Wu
Mental nerve (MN) injury is the most common complications of genioplasty; to protect the MN and oral mucosa, the authors invent and validate the appropriate retractors for genioplasty, and which can avoid the skin and mucous membrane of the lower lip, chin, and the vestibular gingiva of the mandibular incisor from paresthesia or dysesthesia. The patent application for the appropriate retractors for genioplasty is already submitted (Patent No 201610164563.3, China). The retractors provide a better surgical visual field and improve the operation efficiency while reducing the risk of surgery...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28045830/advancing-and-lengthening-genioplasty-in-contouring-of-the-receding-and-short-chin
#15
Ce Zhang, Luyi Zhao, Chao-Ran Li, Yoong-Hoon Shim, Dejun Cao
BACKGROUND: In East Asia, receding and short chin are common complaints of patients who do not have satisfied lower face. In most former studies, receding and short chin are considered and treated separately. But during the clinical work, the authors found that, in many patients, neither vertical elongation nor horizontal advancement of the chin is sufficient to achieve a harmonious result. In regards of this problem, the authors performed an advancing and lengthening genioplasty and the results were aesthetically satisfactory...
March 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28043709/-facial-feminization-surgery%C3%A2-%C3%A2-middle-and-inferior-thirds
#16
F Boucher, A Gleizal, A Mojallal, J-T Bachelet
The authors present the surgical techniques of facial feminization of the middle third and the inferior third in the context of sexual reassignment surgery. These techniques adapted to patients 'male to female' are proposed to strong masculine facial features of patients and are based in the middle third of the remodeling of the malar region by fat grafting, reduction and/or deprojection techniques in rhinoseptoplasty and upper lip surgery. Concerning the inferior third, remodeling of the mandibular angles, genioplasty and chondrolaryngoplasty are adapted...
April 2017: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/28032198/evaluation-of-ultrasonic-and-conventional-surgical-techniques-for-genioplasty-combined-with-two-different-osteosynthesis-plates-a-cadaveric-study
#17
Stephan Christian Möhlhenrich, Nassim Ayoub, Ulrike Fritz, Andreas Prescher, Frank Hölzle, Ali Modabber
OBJECTIVES: The aim of this study was to compare genioplasties performed using traditional saw or piezosurgery combined with different osteosynthesis plates. MATERIALS AND METHODS: Thirty-two genioplasties were first performed on fresh human cadavers using a saw or piezosurgery, followed by chin osteosynthesis with bending or pre-shaped plates. The time required for osteotomy and plate fixation was measured, and the suprahyoid pedicle was inspected. RESULTS: The mean time required was 204 s (SD 43) with the saw and 52 s (SD 67) with piezosurgery...
December 28, 2016: Clinical Oral Investigations
https://www.readbyqxmd.com/read/28005826/porous-polyethylene-implant-as-aesthetic-complement-in-orthognathic-surgery
#18
Juliana Dreyer da Silva de Menezes, Lucas Borin Moura, Renato Parsekian Martins, Eduardo Hochuli-Vieira
Porous polyethylene implants have been used as an alternative in the treatment of patients with zygomatic and paranasal projections deficiency. These implants promote a facial rejuvenating effect due to the attenuation of the nasal and chin prominences. The advantages of porous polyethylene include biocompatibility, dimensional stability, easy adaptation and fixation, low complication rate, and its availability in different sizes and shapes. A 27-year-old woman presenting vertical deficiency associated with midface hypoplasia was treated with orthognathic surgery...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005743/computer-image-guided-template-for-horizontal-advancement-genioplasty
#19
Jia Qiao, Xi Fu, Lai Gui, Sabine Girod, Gordon K Lee, Feng Niu, Jianfeng Liu
BACKGROUND: Horizontal advancement genioplasty can be extremely rewarding for microgenia. However, it is challenging for even very experienced surgeon to determine the three-dimensional position of the distant bone fragment during the operation. This study aimed to apply and evaluate computer-aided design (CAD) and computer-aided manufacturing techniques for horizontal advancement genioplasty to improve surgical accuracy. METHODS: Seven patients with microgenia were prospectively enrolled in the study...
November 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28005735/subtypes-of-maxillomandibular-advancement-surgery-for-patients-with-obstructive-sleep-apnea
#20
Won-June Lee, Dong-Hyun Hwang, Stanley Yung-Chuan Liu, Su-Jung Kim
Maxillomandibular advancement (MMA) surgery, which is the most effective treatment modality for patients with moderate-to-severe obstructive sleep apnea with apparent skeletal discrepancies, has been modified in conjunction with segmental osteotomies, counterclockwise rotation of maxillomandibular complex, and other adjunctive procedures. However, any single type of MMA could not treat or cure all the patients with obstructive sleep apnea showing different dentofacial and pharyngeal patterns. We aimed to suggest critical decision factors for the selective application of MMA subtypes, categorized as straight MMA with genioplasty, rotational MMA, segmental MMA, and segmental-rotational MMA, in the surgical treatment objective process: anteroposterior position of maxilla, upper lip projection, overjet, lower incisor inclination as sagittal factors, and upper incisor exposure and occlusal plane angle as vertical factors...
November 2016: Journal of Craniofacial Surgery
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