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Mandibular surgery

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https://www.readbyqxmd.com/read/29457121/anesthesia-for-patients-with-ptrf-mutations-a-case-report
#1
Atsuko Hirano, Tomohiko Takada, Mariko Senda, Hidemasa Takahashi, Takeo Suzuki
Background: Polymeraze I and transcript release factor ( PTRF ) mutations are a newly recognized disease, which cause congenital generalized lipodystrophy associated with myopathy. Case presentation: A 29-year-old man (height 126 cm; weight 22 kg) with a PTRF mutation was scheduled for mandibular dentigerous cystectomy. His primary symptoms were lipodystrophy, myopathy, long QT syndrome, refractory nephrosis, and abnormal lipid metabolism. Defibrillator pads were applied soon after the patient entered the operating room...
2018: JA Clin Rep
https://www.readbyqxmd.com/read/29456771/pulpal-and-periodontal-tissues-changes-associated-with-le-fort-i-and-sagittal-split-ramus-osteotomies-a-review
#2
REVIEW
Konstantinos Lazaridis, Maria Lazaridou, Athanasios E Athanasiou
Introduction: Le Fort I and sagittal split ramus osteotomies are the most commonly performed orthognathic surgery procedures on the maxilla and mandible, respectively. Techniques: Despite progress in the techniques, these procedures may still be associated with morbidity, expressed as inflammation, inadequate bony union, periodontal damages or in extreme cases even total bone loss. Discussion: Through a comprehensive review of the literature, the influences of maxillary and mandibular surgery on Pulpal Blood Flow (PBF), pulp sensitivity and pulp vitality are examined...
2018: Open Dentistry Journal
https://www.readbyqxmd.com/read/29456302/impact-of-mandibular-third-molar-extraction-in-the-second-molar-periodontal-status-a-prospective-study
#3
Paulo Eduardo Melo Stella, Saulo Gabriel Moreira Falci, Lorrayne Estéfane Oliveira de Medeiros, Dhelfeson Willya Douglas-de-Oliveira, Patricia Furtado Gonçalves, Olga Dumont Flecha, Cássio Roberto Rocha Dos Santos
Aim: The aim of the present study was to assess the periodontal condition and sensitivity of second mandibular molars after the extraction of the adjacent third molar, while also assessing the quality of life of the patients. Materials and Methods: Twenty-three healthy patients were assessed in terms of probing depth, gingival height, gingival thickness, dental sensitivity, plaque index and bleeding on probing (adjacent second mandibular molar), before the surgical procedure, as well as 60 and 180 days after the surgery...
July 2017: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29450917/factors-predictive-of-the-onset-and-duration-of-action-of-local-anesthesia-in-mandibular-third-molar-surgery-a-prospective-study
#4
Mohammad H Al-Shayyab, Zaid H Baqain
The aim of this study was to assess the influence of patients' and surgical variables on the onset and duration of action of local anesthesia (LA) in mandibular third-molar (M3) surgery. Patients scheduled for mandibular M3 surgery were considered for inclusion in this prospective cohort study. Patients' and surgical variables were recorded. Two per cent (2%) lidocaine with 1:100,000 epinephrine was used to block the nerves for extraction of mandibular M3. Then, the onset of action and duration of LA were monitored...
February 16, 2018: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/29447829/custom-made-titanium-miniplates-associated-with-ultrahigh-molecular-weight-polyethylene-graft-in-orthognathic-surgery-an-adjunct-to-maxillary-advancement
#5
José Thiers Carneiro Júnior, Paulo Hemerson de Moraes, Douglas Voss de Oliveira, Nayara Cristina Monteiro Carneiro
Patients with considerable maxillomandibular anteroposterior discrepancies and maxillary hypoplasia require corrective treatment through orthognathic surgery. However, in the treatment of severe maxillary retrognathism, it is necessary to reconstruct areas of bone deficiency through grafting techniques in addition to maxillary advancement using only the Le Fort I osteotomy. Treatment in these patients is more challenging and requires high surgical predictability. Alloplastic materials often have been used for the reconstruction of poor bone contours...
January 31, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29447804/long-term-follow-up-with-mention-of-complications-in-pediatric-microvascular-mandibular-reconstruction
#6
Kenneth Akakpo, Christopher Iobst, Matthew Old, Jonathan Grischkan
The fibular free flap has become the gold standard for mandibular reconstruction. Despite its vast array of benefits, this procedure has the potential for several complications. In the pediatric setting, the immature skeleton sets the stage for an increased risk of future skeletal abnormalities, both in the jaw, and in the donor site. Herein we describe the case of a toddler who underwent mandibular reconstruction using a fibula free flap and, years later, subsequently developed ankle instability as a result of residual fibula migration...
February 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29440942/mandibular-positioning-techniques-to-improve-sleep-quality-in-patients-with-obstructive-sleep-apnea-current-perspectives
#7
REVIEW
Sofie Wilkens Knappe, Liselotte Sonnesen
The purpose of this article is to review 1) mandibular advancement device (MAD) - indication, treatment success, and side effects; 2) maxillomandibular advancement (MMA) surgery of the jaws - indication, treatment success, and side effects; and 3) current perspectives. Both MAD and MMA are administered to increase the upper airway volume and reduce the collapsibility of the upper airway. MAD is noninvasive and is indicated as a first-stage treatment in adult patients with mild-to-moderate obstructive sleep apnea (OSA) and in patients with severe OSA unable to adhere to continuous positive airway pressure (CPAP)...
2018: Nature and Science of Sleep
https://www.readbyqxmd.com/read/29438212/maxillo-mandibular-reconstruction-in-pediatric-patients-how-to-do-it
#8
Valentino Valentini, Luigi Califano, Andrea Cassoni, Della Monaca Marco, Ingrid Raponi, Paolo Priore, Maria Teresa Fadda, Giovanni Dell'Aversana Orabona, Valentina Terenzi
Maxillo-mandibular reconstruction in pediatric patients involves particular functional and cosmetic implications. Attention is required for the craniofacial growth over time, involvement of the permanent dentition, facial symmetry, and donor site morbidity. Our aim is to identify the best reconstructive options for maxilla-mandibular defects in children (<18 years) based on our experience with 25 pediatric patients. We believe that reconstruction has to be performed at the same time as resection in pediatric patients...
February 12, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29431348/new-technique-for-large-mandibular-and-surrounding-soft-tissue-reconstruction-that-uses-an-intraoral-three-dimensional-distractor-for-one-step-transport-disc-distraction-osteogenesis
#9
Antonio Cortese, Mario Caggiano, Giuseppe Pantaleo, Massimo Amato, Pier P Claudio
BACKGROUND: Mandibular reconstruction after ablative surgery is challenging not only for the amount of bone tissue needed following bone loss after benign or malignant tumor surgical removal, but mainly to reconstruct bone shape and structure necessary for subsequent implant insertion to preserve the function (speech, swallowing and chewing) and aesthetic of the lower face. Several different techniques for maxillary bone defects reconstruction have been described. The aim of our work is to describe a new technique for mandibular reconstruction that uses an intramural distractor, which is placed in one surgical step and without the need for a skin incision...
February 9, 2018: Minerva Stomatologica
https://www.readbyqxmd.com/read/29429068/stability-of-maxillary-protraction-therapy-in-children-with-class-iii-malocclusion-a-systematic-review-and-meta-analysis
#10
Yifan Lin, Runzhi Guo, Liyu Hou, Zhen Fu, Weiran Li
OBJECTIVE: The objective of this study was to evaluate the stability of treatment effects of maxillary protraction therapy in Class III children. MATERIALS AND METHODS: Multiple electronic databases were searched from 01/1996 to 10/2016. Randomized clinical trials, controlled clinical trials, and cohort studies with untreated Class III controls and a follow-up over 2 years were considered for inclusion. The methodological quality of the studies and publication bias were evaluated...
February 10, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29426739/patient-satisfaction-and-oral-health-related-quality-of-life-10-15-years-after-orthodontic-surgical-treatment-of-mandibular-prognathism
#11
E Schilbred Eriksen, K Moen, P J Wisth, S Løes, K S Klock
This study investigated 36 patients at 10-15 years after they had undergone mandibular setback surgery by intraoral vertical ramus osteotomy (IVRO) and subsequent intermaxillary fixation for 6 weeks. The patients completed a 37-item structured questionnaire to evaluate patient satisfaction and possible long-term effects of the treatment. Visual analogue scales were used to measure self-perceived changes in seven items concerning oral function and appearance. Oral health-related quality of life was assessed using the Oral Impacts on Daily Performance (OIDP) index...
February 6, 2018: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29426644/targeted-endodontic-microsurgery-a-novel-approach-to-anatomically-challenging-scenarios-using-3-dimensional-printed-guides-and-trephine-burs-a-report-of-3-cases
#12
C Michelle Giacomino, Jarom J Ray, James A Wealleans
Endodontic microsurgery (EMS) techniques have increased success rates over traditional approaches. Despite surgical advances, anatomically challenging scenarios can preclude EMS in certain cases. The aim of this article was to introduce targeted EMS, which uses 3-dimensional-printed surgical guides (3DSGs) and trephine burs to achieve single-step osteotomy, root-end resection, and biopsy in complex cases. In each of 3 cases, a 3DSG with a trephine port was printed using computer-aided design/computer-aided manufacturing implant planning software...
February 6, 2018: Journal of Endodontics
https://www.readbyqxmd.com/read/29425750/the-influential-bony-factors-and-vectors-for-predicting-soft-tissue-responses-after-orthognathic-surgery-in-mandibular-prognathism
#13
Yoon-Sic Han, Ho Lee
PURPOSE: We sought to identify the hard tissue points and vectors that have the greatest effect on soft tissue movement after orthognathic surgery in patients with mandibular prognathism. PATIENT AND METHODS: The present retrospective study involved patients who had undergone mandibular setback surgery with or without maxillary advancement. Multiple linear regression models were adapted to evaluate the association between the 8 hard tissue landmark (predictor variables) changes and 11 soft tissue responses (outcome variables) using the x and y coordinates assessed from superimposed pre- and postoperative 3-dimensional computed tomography images...
January 31, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29423929/introduction-of-an-algorithm-for-planning-of-autologous-fibular-transfer-in-mandibular-reconstruction-based-on-individual-bone-curvatures
#14
Stefan Raith, Alexandra Rauen, Stephan Christian Möhlhenrich, Nassim Ayoub, Florian Peters, Timm Steiner, Frank Hölzle, Ali Modabber
BACKGROUND: Reconstruction of the mandible with autologous transplants is a challenging task and current computer-aided surgical planning remains cumbersome. Thus, the aim of the present study was to create an automated computational approach for this procedure. METHODS: The developed algorithm is based on curves following characteristic anatomical features. Geometrical data from a physiological mandible and a fibula were used to generate six different defects, and geometrical accordance was investigated to demonstrate the applicability of the method with different reconstruction parameters (n = 309)...
February 9, 2018: International Journal of Medical Robotics + Computer Assisted Surgery: MRCAS
https://www.readbyqxmd.com/read/29420387/high-grade-conventional-osteosarcoma-of-the-mandible-associated-with-p53-germline-mutation
#15
Daniel Ginat, Jefree Schulte, Zhen Gooi, Nicole Cipriani
High-grade conventional osteosarcoma of the mandible is a rare entity that can manifest as a rapidly growing mass. The authors report the case of a young adult patient with right mandible pain and swelling and a history of humeral osteosarcoma treated over 1 decade earlier. Computed tomography and magnetic resonance imaging showed a mass arising from the right mandible that progressed despite induction chemotherapy and the patient underwent surgery. Histopathology revealed the presence of malignant osteoblasts and osteoid, which led to the diagnosis of high-grade conventional osteosarcoma...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29420385/orthognathic-surgery-and-implant-supported-bridge-in-a-class-iii-patient-injured-in-a-motor-vehicle-accident
#16
Koji Honda, Makoto Hirota, Toshinori Iwai, Koichi Fujita, Susumu Omura, Takashi Ono, Iwai Tohnai
Occlusal and esthetic rehabilitation of jaw deformities in patients with partially edentulous maxilla are challenging procedures. This article describes a patient involving a skeletal Class III, 36-year-old male patient with a single bilateral anterior partially edentulous maxilla resulting from injuries sustained in a motor vehicle accident; his anterior teeth had been lost for more than 10 years. His lip protruded from the lateral view due to the proclined upper incisors and mandibular protrusion.Because of the facial deformity and inadequate prosthesis of the maxilla, the prosthesis had dropped out repeatedly...
February 7, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29406819/successful-implant-placement-in-a-case-of-florid-cemento-osseous-dysplasia-a-case-report-and-literature-review
#17
Nasrin Esfahanizadeh, Hila Yousefi
Florid cemento-osseus dysplasia (FCOD) has been described as a reactive process in which normal bone is replaced by fibrous connective tissues and cementum-like materials. Radiographically it appears as dense, lobulated masses, often occurring bilaterally with symmetric involvement. In this case report a successful implant placement has been reported in a 62-year-old Caucasian woman with a chief complaint of mandibular partial edentulous. Radiographic images showed the bilateral radio-opaque lesions in edentulous regions of mandible, and mandibular anterior teeth alike...
February 6, 2018: Journal of Oral Implantology
https://www.readbyqxmd.com/read/29406261/comparison-of-the-effects-of-ultrasonic-and-conventional-surgery-on-the-neurosensory-disturbance-after-bilateral-sagittal-split-osteotomy
#18
Shinya Kokuryo, Manabu Habu, Ryosuke Kita, Takeshi Katsuki, Kazuhiro Tominaga, Izumi Yoshioka
PURPOSE: According to the literature, ultrasonic surgery reduces the incidence of neurosensory disturbance (NSD) of the inferior alveolar nerve (IFAN) after bilateral sagittal split osteotomy (BSSO). The purpose of this study was to evaluate the effects of ultrasonic surgery and the anatomic position of the IFAN canal on NSD after BSSO. PATIENTS AND METHODS: This retrospective cohort study included skeletal mandibular prognathism cases operated on with an ultrasonic bone scalpel or a reciprocating saw...
January 3, 2018: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29399751/revisiting-the-relationship-between-the-submandibular-duct-lingual-nerve-and-hypoglossal-nerve
#19
Ceren Günenç Beşer, Burcu Erçakmak, Hasan Barış Ilgaz, Alper Vatansever, Mustafa Fevzi Sargon
BACKGROUND: The aim of the study was to evaluate the relations between submandibular duct, lingual nerve and hypoglossal nerve for making a reassessment of this area in fresh frozen specimens. Also, the distance between the angle of the mandible and the vertical line drawn from the point where submandibular duct crossed lingual nerve to the base of the mandible was measured to determine a new landmark for neck surgeons. METHODS: 14 fresh frozen head and neck specimens were dissected and evaluated...
February 5, 2018: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29399353/osseous-choristoma-of-the-tongue-a-case-report-with-dermoscopic-study
#20
Hitoshi Yoshimura, Seigo Ohba, Yoshiaki Imamura, Kazuo Sano
Osseous choristomas are rare benign lesions characterized by ectopic bone formation in the soft tissue of the head and neck region. Dermoscopy visualizes the morphological characteristics that are not observable by the naked eye, and may be used for the evaluation of calcification under the skin. The present study reports a case of an osseous choristoma arising in the tongue, and reveals the dermoscopic features of osseous choristoma from a surgical specimen. A 7-year-old boy was referred to the Department of Dentistry and Oral Surgery, with an asymptomatic pedunculated mass in the tongue...
February 2018: Molecular and Clinical Oncology
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