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https://www.readbyqxmd.com/read/28432875/one-step-surgical-correction-of-transverse-and-anteroposterior-maxillary-deficiencies-using-wire-fixation-a-new-approach-and-long-term-stability
#1
Max Domingues Pereira, Vivian Farfel, Gabriela Pereira Ribeiro Prado, Lydia Masako Ferreira
PURPOSE: To describe a retrospective assessment of the long-term stability of a new approach using wire fixation for 1-step surgical correction of transverse and anteroposterior maxillary deficiencies. PATIENTS AND METHODS: The authors implemented a case series of 5 adult patients (3 men and 2 women; mean age, 31.4 yr) needing maxillary advancement less than 5 mm and had transverse maxillary deficiency greater than 7 mm who underwent total Le Fort I and median palatal suture osteotomies and had their maxilla advanced and stabilized bilaterally with stainless steel wire...
March 22, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28419845/does-orthognathic-surgery-cause-or-cure-temporomandibular-disorders-a%C3%A2-systematic-review-and-meta-analysis
#2
REVIEW
Essam Ahmed Al-Moraissi, Larry M Wolford, Daniel Perez, Daniel M Laskin, Edward Ellis
PURPOSE: There is still controversy about whether orthognathic surgery negatively or positively affects temporomandibular disorders (TMDs). The purpose of this study was to determine whether orthognathic surgery has a beneficial or deleterious effect on pre-existing TMDs. MATERIALS AND METHODS: A systematic review and meta-analysis were conducted based on Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. We searched 3 major databases to locate all pertinent articles published from 1980 to March 2016...
March 24, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28406135/sliding-malar-bone-augmentation-technique-with-a-high-le-fort-i-surgically-assisted-rapid-maxillary-expansion
#3
G Dergin, P Aktop, S Biren, S Aktop
The purpose of this report is to evaluate the effectiveness of a high Le Fort I osteotomy design, including the malar bones, which allows segment sliding over the zygoma and forces the osteotomized segment to move forward with distraction. Two patients (male, 23-and 30-year-old) with malar deficiency underwent high Le Fort I osteotomy and surgically assisted rapid maxillary expansion procedure was followed. Records were taken before and 6 months after surgery for comparison, including intra and extra oral photographs and three-dimensional cone-beam computed tomography (CBCT) images...
April 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28403134/early-computer-aided-design-computer-aided-modeling-planned-le-fort-i-advancement-with-internal-distractors-to-treat-severe-maxillary-hypoplasia-in-cleft-lip-and-palate
#4
Catherine S Chang, Jordan Swanson, Jason Yu, Jesse A Taylor
Traditionally, maxillary hypoplasia in the setting of cleft lip and palate is treated via orthognathic surgery at skeletal maturity, which condemns these patients to abnormal facial proportions during adolescence. The authors sought to determine the safety profile of computer-aided design/computer-aided modeling (CAD/CAM) planned, Le Fort I distraction osteogenesis with internal distractors in select patients presenting at a young age with severe maxillary retrusion. The authors retrospectively reviewed our "early" Le Fort I distraction osteogenesis experience-patients performed for severe maxillary retrusion (≥12 mm underjet), after canine eruption but prior to skeletal maturity-at a single institution...
April 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28403023/incidence-of-le-fort-surgery-in-a-mature-cohort-of-patients-with-cleft-lip-and-palate
#5
Cecilia Dalle Ore, Anna Schoenbrunner, Michael Brandel, Nicola Kronstadt, Joyce McIntyre, Marilyn Jones, Amanda Gosman
Primary repair of cleft lip and palate occurs early in life, but ideal timing of these interventions remains controversial. Prior research has indicated that a later palate repair may improve patients' midfacial growth long term, whereas optimal timing of lip repair to maximize midfacial growth has not been identified.The purpose of this study is to analyze a large, diverse cohort of patients with cleft lip and palate to determine whether timing of primary palate repair and primary lip repair contributed significantly to subsequent orthognathic surgery...
April 11, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28399616/orthodontic-surgical-treatment-and-respiratory-function-rhinomanometric-assessment
#6
Guido Galbiati, Cinzia Maspero, Lucia Giannini, Guia C Guenza, Federica Zanoni, Giampietro Farronato
BACKGROUND: Several correlations between morphological and/or positional alterations of the jaws and respiratory functional impairments have been reported. NAO (Nasal airway obstruction) represents a big deal with no clearly defined "gold- standard" in measurement. Rhinomanometry was adopted by multiple Authors to evaluate whether patients with malocclusion developed respiratory functional changes after an orthodontic-surgical treatment. However there are contrasting findings in literature regarding the possibility of improving respiratory function by means of SARPE or bimaxillary repositioning of the bony bases...
April 11, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28399025/incidence-of-le-fort-surgery-in-a-mature-cohort-of-patients-with-cleft-lip-and-palate
#7
Cecilia Dalle Ore, Anna Schoenbrunner, Michael Brandel, Nicola Kronstadt, Joyce McIntyre, Marilyn Jones, Amanda Gosman
Primary repair of cleft lip and palate occurs early in life, but ideal timing of these interventions remains controversial. Prior research has indicated that a later palate repair may improve patients' midfacial growth long term, whereas optimal timing of lip repair to maximize midfacial growth has not been identified.The purpose of this study is to analyze a large, diverse cohort of patients with cleft lip and palate to determine whether timing of primary palate repair and primary lip repair contributed significantly to subsequent orthognathic surgery...
May 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28392948/advanced-implant-prosthetic-rehabilitation-how-to-obtain-a-correct-restoration-of-both-functions-and-aesthetics-in-patients-with-complex-combined-dental-and-maxillofacial-trauma-a-case-report-and-topical-review-of-the-literature
#8
M M Figliuzzi, A Giudice, L Fortunato
Aim. This study aims to explain the main steps that characterize the implant-prosthetic rehabilitation in complex combined dental and maxillofacial trauma. Material and Methods. A 20-year-old patient reported an extensive facial trauma which also involved the alveolar process of the maxillary bone. The patient reported a maxillofacial fracture and the loss of teeth 1.3, 1.2, 1.1, and 2.1. A "Le Fort" type 2 fracture was also reported, with the malar bone involvement. After reduction and containment of bone fractures, through appropriate mounting plates, appropriate functional and aesthetic rehabilitation of the patient were replaced thanks to a temporary removable prosthesis...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28392230/changes-in-condylar-position-after-bssro-with-and-without-le-fort-i-osteotomy-via-surgery-first-approach-in-mandibular-prognathism-with-facial-asymmetry
#9
Jiyin Li, Sun-Youl Ryu, Hong-Ju Park, Min-Suk Kook, Seunggon Jung, Jeong Joon Han, Hee-Kyun Oh
OBJECTIVES: This study aimed to evaluate changes in condylar position after bilateral sagittal split ramus osteotomy (BSSRO) with and without Le Fort I osteotomy via the surgery-first approach (SFA) in patients with facial asymmetry. STUDY DESIGN: Eighteen patients (36 condyles) who received surgical-orthodontic treatment using the SFA were included and divided into 2 groups depending on the extent of surgery: BSSRO-only group (n = 12) and BSSRO with Le Fort I osteotomy group (n = 6)...
February 6, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28390129/evaluation-of-strain-values-of-critical-anatomic-regions-for-two-different-pterygomaxillary-approaches-in-le-fort-i-osteotomy-an-experimental-study
#10
Y-B Ozdemir, D Dolanmaz, A Esen, H Terzioglu, H Saglam
BACKGROUND: The purpose of this experimental study was to measure stresses both on the pterygoid plates and the skull base following two different pterygomaxillary approaches in Le Fort I osteotomy. MATERIAL AND METHODS: The prepared skull models were randomly divided into 2 groups of 7. In the first group (A), the pterygomaxillary area was left intact. In the second group (B), pterygomaxillary separation was performed with a fine bur. The stresses were measured by using strain gauges...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28385384/carotid-jugular-fistula-after-le-fort-i-osteotomy
#11
REVIEW
P R Osborne, T F V Sverzut, A E Trivellato, C M Matias, C E Sverzut, A T Sverzut
Le Fort I osteotomy is the technique most applied worldwide in the treatment of dentoskeletal deformity involving the maxilla. Even though it is considered a very safe technique with good intra- and postoperative results, many complications have been described. This paper presents a case of carotid jugular fistula developed in a 22-year-old white male submitted to Le Fort I osteotomy for the treatment of anteroposterior maxillary deficiency, and discusses the possible aetiology and management of this serious complication...
April 3, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28382185/isolated-fracture-of-lateral-pterygoid-plate-by-penetrating-foreign-body-a-rarity-indeed
#12
Mukesh Surya, Pawan Soni, Ramesh Bharti, Ira Jamwal
BACKGROUND: Fractures of mid-face were first described by Le Fort and are classified into three categories - Le Fort I, Le Fort II and Le Fort III. The pterygoid processes of the sphenoid bone are fractured in all the three categories of Le Fort fractures as the sphenoid bone connects the cranium vault to the facial bones. Fractures of the pterygoid processes without associated Le Fort fractures are rare and are usually associated with fractures of the mandible, temporal bone or other facial bones...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28381373/the-use-of-patient-specific-implants-in-orthognathic-surgery-a-series-of-30-mandible-sagittal-split-osteotomy-patients
#13
Juho Suojanen, Junnu Leikola, Patricia Stoor
PURPOSE: Virtual surgery combined with patient-specific saw and drill guides and osteosynthesis materials are rapidly spreading from reconstructive surgery to orthognathic surgery. Most commercial partners are already providing computer-aided design and computer-aided manufacture (CAD/CAM) wafers and patient-specific saw guides. Clear benefits have been demonstrated for custom-made drill guides combined with individually designed three-dimensional (3D) printed patient-specific implants (PSI) as a reposition and fixation system in Le Fort I osteotomy...
March 3, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28365716/displacement-patterns-of-the-maxilla-during-parallel-and-rotational-setback-movements-a-finite-element-analysis
#14
Oğuz Buhara, Erkan Erkmen, Kaan Orhan
BACKGROUND The purpose of this analysis was to evaluate the displacement patterns of the maxilla under parallel and rotational setbacks using the finite element method (FEM). MATERIAL AND METHODS A three-dimensional (3D) finite element model of a hemimaxilla was constructed. Through a conventional Le Fort I osteotomy, 2 and 3 mm of posterior movement in a parallel and rotational manner were simulated and the displacement pattern of the maxilla in each movement type was evaluated. RESULTS Both parallel and rotational setbacks resulted in lateral and inferior displacement of the maxillary segment...
April 2, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28343736/three-dimensional-facial-changes-correlated-with-sagittal-jaw-movements-in-patients-with-class-iii-skeletal-deformities
#15
M Verdenik, N Ihan Hren
The aim of this prospective study was to correlate the postoperative 3-dimensional facial changes in skeletal class III deformity with sagittal jaw movements in 84 patients who had been treated by one piece Le Fort I maxillary advancement only (n=18), mandibular setback only (n=38), or both procedures (n=28). At the times of evaluation before and six months after operation all patients had fixed orthodontic appliances. Soft tissue changes were evaluated on optical 3-dimensional scans, while lateral cephalograms were superimposed to assess sagittal jaw movements...
March 23, 2017: British Journal of Oral & Maxillofacial Surgery
https://www.readbyqxmd.com/read/28337986/simultaneous-treatment-of-temporomandibular-joint-ankylosis-with-severe-mandibular-deficiency-by-standard-tmj-prosthesis
#16
YiHui Hu, LuZhu Zhang, DongMei He, Chi Yang, MinJie Chen, ShanYong Zhang, Hui Li, Edward Ellis Iii
Temporomandibular joint (TMJ) ankylosis is a refractory disease that is difficult to predictably treat. This study evaluated the prognosis of using standard alloplastic TMJ prostheses for the treatment of TMJ ankylosis in Chinese patients with severe mandibular deficiency. Patients treated from 2013 to 2015 were reviewed. The computer-aided design and manufacture (CAD/CAM) technique was used to guide bony mass removal and locate the TMJ prosthesis (Biomet, USA). Eleven patients were included in this study. All prostheses were successfully installed and stabilized intraoperatively...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28330569/mechanical-stability-of-2-plate-versus-4-plate-osteosynthesis-in-advancement-le-fort-i-osteotomy-an-in-vitro-study
#17
L Pozzer, S Olate, L Cavalieri-Pereira, P Navarro, J R de Albergaría Barbosa
INTRODUCTION: Stability in orthognathic surgery is nowadays considered as efficient and adequate. The objective of this study was to determine and to compare the mechanical resistance to vertical load of a Le Fort I advancement osteotomy stabilized by mean of two different osteosynthesis techniques, one using two 10-hole pre-bent T-shaped plates, the other using four manually bent 4-hole L- and J-shaped plates. MATERIEL AND METHODS: Standardized Le Fort I advancement osteotomies have been made on polyurethane models...
February 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28318870/anterior-open-bite-correction-by-le-fort-i-osteotomy-with-or-without-anterior-segmentation-which-is-more-stable
#18
I N Ismail, Y Y Leung
A retrospective cohort study was conducted to analyze the relapse rate of anterior open bite (AOB) correction comparing Le Fort I osteotomy with and without anterior segmentation. The risk factors that might contribute to relapse were also assessed. Lateral cephalograms obtained at six different times were analyzed. A total of 81 patients with AOB were recruited. Thirty-five patients underwent Le Fort I osteotomy without anterior segmentation and 46 patients underwent anterior segmentation. Le Fort I osteotomy with anterior segmentation resulted in significantly more AOB relapse when compared to that without anterior segmentation at 7 weeks postoperative (15...
March 15, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28293940/variations-of-the-profile-of-the-nose-of-the-upper-lip
#19
Pierfrancesco Galzignato, Dario Bertossi, Massimo Albanese, Antonio Iurlaro, Umberto Luciano, Pietro Fiorino, Alessandro Rizzini, Daniele De Santis, Alessandro Zangani, Pierfrancesco Nocini
BACKGROUND: The aim of this study is to analyze the path needed to achieve a good aesthetic and functional result in patients treated with orthognathic surgery. METHODS: 73 patients with only III class malocclusion were treated with sagittal split ramus osteotomy (SSRO) and with Le Fort I in only one piece. Through the analysis of anatomical cephalometric tracings, changes in the skeletal base, upper incisor and nose's shape were evaluated. The statistical analysis measurements were calculated for each length and for each angle at T0 (preoperative value) and at T1 (post-operative value)...
March 14, 2017: Minerva Stomatologica
https://www.readbyqxmd.com/read/28286399/application-of-4-meta-adhesive-resin-to-the-occlusal-surface-during-surgery-facilitates-postoperative-occlusal-management
#20
Aoki Noriaki, Baba Junichi, Iwai Toshinori, Tohnai Iwai
PURPOSE: Orthognathic surgery is generally used to correct facial deformities and establish functional occlusion. Preoperative orthodontic treatment is important for stabilizing and establishing the postoperative occlusion. However, sufficient preoperative surgical orthodontic treatment might be sometimes difficult in patients with an abnormally shaped maxilla or mandible or severe jaw deformity. METHODS: We performed this technique over 10 patients with jaw deformities after insufficient presurgical orthodontic treatment...
March 2017: Journal of Maxillofacial and Oral Surgery
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