Correction of Facial Asymmetry Using Patient-Specific Implants: A Case Report

2020 ◽  
Vol 37 (3) ◽  
pp. 109-113
Author(s):  
Manolis Manolakakis ◽  
Ryan Richards

Dentofacial deformities can have a profound impact on patients’ function and facial aesthetics. Traditionally, dentofacial deformities and malocclusion have been managed with growth modification, orthodontic therapy, and orthognathic surgery, or a combination of these modalities. The aim of this article is to discuss the use of patient-specific alloplastic implants as an adjunct or alternative to orthognathic surgery in patients with dentofacial deformities. A 40-year-old man who previously underwent surgically assisted rapid palatal expansion followed by LeFort I osteotomy advancement, intraoral vertical ramus osteotomy setback (IVRO), rhinoplasty, and fat transfer to the malar region presented with a chief complaint of dissatisfaction due to significant facial asymmetry. Tear trough deformity, concave nasal dorsum with nasal tip deviation to the left, submalar fullness, chin deviation to the right, and a poorly defined mandibular border outline were all noted on physical examination. The patient was treated with lower lid blepharoplasty with fat repositioning, buccal fat pad reduction (bichectomy), and patient-specific malar and mandibular border implants. In a patient who has a moderate-to-severe malocclusion and dentofacial deformity, traditional treatment includes orthodontic correction and orthognathic surgery. Patients undergoing primary orthognathic surgery can benefit from alloplastic implants. For patients who have residual maxillary or mandibular asymmetry after orthognathic surgery, the treatment options are secondary orthognathic procedures or facial implants. These patients can benefit from treatment with alloplastic facial implants as an adjunct or alternative to orthognathic surgery to normalize skeletal contours and improve facial aesthetics. Patient-specific alloplastic implants can be used as a powerful adjunct or alternative to orthognathic surgery. Patients with mild occlusal and skeletal deformities who have traditionally been treated with orthodontic therapy alone can benefit from evaluation of alloplastic implants. Patients with residual asymmetries after orthognathic surgery can benefit from alloplastic implants as an adjunct with secondary osteotomies or as an alternative altogether.

2013 ◽  
Vol 6 (1) ◽  
pp. 43-48
Author(s):  
Leonardo Faverani ◽  
Gabriel Ramalho-Ferreira ◽  
Ellen Jardim ◽  
Marcelo Goiato ◽  
Flavia Pereira ◽  
...  

Aim Acceptable facial aesthetics is a common desire among patients presenting with dentofacial deformities planning to undergo orthognathic surgeries. Thus, professionals must be alert to their patients’ complaints as well as their desires regarding facial morphology, because this is quite subjective and personal. This research aimed at evaluating the different views of orthodontists and oral maxillofacial surgeons regarding the facial analysis of patients who undergo orthognathic surgery. Methods Thirty individuals were selected with a minimum postoperative period of 6 months and photographed in the frontal and profile norm. Facial morphology characteristics were recorded to observe the agreement of the assessments of four professionals (two orthodontists and two surgeons). Results A significant agreement was seen between the orthodontists regarding the nasolabial angle (80%). In the frontal analysis, the agreement percentage (60%) between orthodontists and surgeons was considerable regarding facial asymmetry assessment. Conclusions Professionals must keep alert to facial analysis, especially in terms of tegumental harmony, for the orthognathic surgery to reestablish, satisfactorily, the facial aesthetics in all parameters set.


2016 ◽  
Vol 9 (3) ◽  
pp. 264-267 ◽  
Author(s):  
Femke Staal ◽  
Britt Pluijmers ◽  
Eppo Wolvius ◽  
Maarten Koudstaal

Craniofacial microsomia (CFM) is a congenital anomaly with a variable phenotype. The most prominent feature of CFM is a predominantly unilateral hypoplasia of the mandible, leading to facial asymmetry. Even after correction of the midline, there is often a remaining hard- and soft-tissue deficiency over the body of the mandible and cheek on the affected side. This clinical report describes the skeletal augmentation of the mandible with a patient-specific implant to treat residual facial asymmetry in two female patients with unilateral CFM. Good aesthetic results were achieved in both patients treated with either a Medpor or polyetheretherketone implant without complications after a follow-up time of 55 and 30 months, respectively.


2018 ◽  
Vol 26 (1) ◽  
pp. 5-20 ◽  
Author(s):  
Jean-Christophe Lutz ◽  
Alexandre Hostettler ◽  
Vincent Agnus ◽  
Stéphane Nicolau ◽  
Daniel George ◽  
...  

Orthognathic surgery belongs to the scope of maxillofacial surgery. It treats dentofacial deformities consisting in discrepancy between the facial bones (upper and lower jaws). Such impairment affects chewing, talking, and breathing and can ultimately result in the loss of teeth. Orthognathic surgery restores facial harmony and dental occlusion through bone cutting, repositioning, and fixation. However, in routine practice, we face the limitations of conventional tools and the lack of intraoperative assistance. These limitations occur at every step of the surgical workflow: preoperative planning, simulation, and intraoperative navigation. The aim of this research was to provide novel tools to improve simulation and navigation. We first developed a semiautomated segmentation pipeline allowing accurate and time-efficient patient-specific 3D modeling from computed tomography scans mandatory to achieve surgical planning. This step allowed an improvement of processing time by a factor of 6 compared with interactive segmentation, with a 1.5-mm distance error. Next, we developed a software to simulate the postoperative outcome on facial soft tissues. Volume meshes were processed from segmented DICOM images, and the Bullet open source mechanical engine was used together with a mass-spring model to reach a postoperative simulation accuracy <1 mm. Our toolset was completed by the development of a real-time navigation system using minimally invasive electromagnetic sensors. This navigation system featured a novel user-friendly interface based on augmented virtuality that improved surgical accuracy and operative time especially for trainee surgeons, therefore demonstrating its educational benefits. The resulting software suite could enhance operative accuracy and surgeon education for improved patient care.


2018 ◽  
Vol 23 (3) ◽  
pp. 80-93 ◽  
Author(s):  
Octavio Cintra ◽  
Simonas Grybauskas ◽  
Carlos Jorge Vogel ◽  
Dalia Latkauskiene ◽  
Nilo Alves Gama Jr

ABSTRACT Dentofacial deformities usually are surgically treated, and 3D virtual planning has been used to favor accurate outcomes. Cases reported in the present article show that orthognathic surgery carried out to correct facial asymmetries does not comprise only one treatment protocol. 3D virtual planning might be used for surgical planning, but it should also be used to diagnose the deformity, thus allowing for an analysis of the best-recommended possibilities for the orthodontic preparation that suits each individual case.


2020 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Sergio Olate ◽  
Claudio Huetequeo-Molina ◽  
Roberto Requena ◽  
Francisca Uribe

2020 ◽  
pp. 1-4
Author(s):  
Bee Tin Goh ◽  
Bee Tin Goh ◽  
Mei Hui Tan ◽  
Tian Ee Seah

Background: Cleidocranial dysplasia (CCD) is a rare autosomal dominant disorder with a prevalence of 1:1,000,000. These patients often present with dentofacial deformities such as midface hypoplasia, multiple supernumeraries and delayed eruption and non-eruption of permanent teeth. Case Presentation: We report a staged orthodontic, orthognathic surgery and open septorhinoplasty management of a 13-year-old male Chinese Singaporean patient diagnosed with cleidocranial dysplasia. He presented with multiple retained primary teeth, buried supernumerary teeth and unerupted permanent teeth. He had a Class III malocclusion and concave facial profile. The multidisciplinary management, which took place over 12 years, resulted in much improved occlusion and facial aesthetics. Conclusion: Collaboration of different specialties and careful planning is required for the successful treatment of cleidocranial dysplasia


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