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https://www.readbyqxmd.com/read/28445374/treatment-of-isolated-zygomatic-arch-fracture-improved-outcomes-with-external-splinting
#1
David I Hindin, Corbin E Muetterties, Chirag Mehta, Stefanos Boukovalas, Justine C Lee, James P Bradley
BACKGROUND: The various approaches to reduction and fixation of isolated displaced zygomatic arch fractures have not been well studied. The authors compared established treatment methods for zygomatic arch fractures for both aesthetic and functional outcomes. METHODS: Consecutive patients with isolated zygomatic arch fractures with a minimum of 6 months' follow-up were studied in five groups: group 1, intraoral approach (no fixation); group 2, temporal approach (no fixation); group 3, coronal flap plate fixation; group 4, external splint fixation; and group 5, no surgery...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28439163/superolateral-dislocation-of-bilateral-intact-mandibular-condyles-a-rare-case-series
#2
Satishkumar G Patil, Bindu S Patil, Udupikrishna Joshi, B M Rudagi, Aafreen Aftab
BACKGROUND AND PURPOSE: The dislocation of mandibular condyle is a clinical condition in which the head of condyle has been displaced out of the glenoid fossa. Complete dislocation of the mandibular condyle can occur in anterior, posterior, lateral and superior direction. Among these dislocations, bilateral superolateral dislocation of mandibular condyles is quite rare and often misdiagnosed. Because of its rare occurrence and unusual clinical course, the best treatment is debatable. PATIENTS AND METHOD: We present the first case series of true bilateral superolateral dislocation of intact mandibular condyles (Type 2B) without fracturing the Zygomatic arch, associated with symphysis fracture...
June 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/28431807/rhabdomyosarcoma-of-the-maxillofacial-region-in-children-and-adolescents-report-of-9-cases-and-literature-review
#3
Ioannis Iatrou, Nadia Theologie-Lygidakis, Ourania Schoinohoriti, Fotis Tzermpos, Anna-Maria Vessala
OBJECTIVE: To review clinical presentation, histology, treatment and survival for pediatric maxillofacial rhabdomyosarcoma (RMS) and evaluate the role of surgical treatment. STUDY DESIGN: Retrospective analysis of medical charts. METHODS: Files of patients, treated for primary maxillofacial RMS from 1997 to 2016, were examined for clinical presentation, staging, histology, treatment protocol and complications, recurrence and final outcome...
March 23, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28429472/transoral-orthodromic-temporalis-muscle-transfer-technique-for-the-paralysed-midface-our-learning-curve-experience-from-the-first-10-cases
#4
Lepa Lazarova, Tristram H Lesser, Samuel C Leong
Sir Harold Gillies first described rotating a band of temporalis muscle over the zygoma where the muscle sling was augmented with strips of fascia lata to rehabilitate facial paralysis (1) . McLaughlin later modified this technique in the 1950s without inversion of the temporal muscle but in an orthodromic manner thus avoiding the soft tissue fullness over the zygomatic arch area and depression of the donor site (2) . Although several refinements of this technique have been described, all required skin incisions on the face until a transoral technique was described recently by this clinical group (3) ...
April 21, 2017: Clinical Otolaryngology
https://www.readbyqxmd.com/read/28405353/effects-of-25-mg-oxazepam-on-emotional-mimicry-and-empathy-for-pain-a-randomized-controlled-experiment
#5
Gustav Nilsonne, Sandra Tamm, Armita Golkar, Karolina Sörman, Katarina Howner, Marianne Kristiansson, Andreas Olsson, Martin Ingvar, Predrag Petrovic
Emotional mimicry and empathy are mechanisms underlying social interaction. Benzodiazepines have been proposed to inhibit empathy and promote antisocial behaviour. First, we aimed to investigate the effects of oxazepam on emotional mimicry and empathy for pain, and second, we aimed to investigate the association of personality traits to emotional mimicry and empathy. Participants (n=76) were randomized to 25 mg oxazepam or placebo. Emotional mimicry was examined using video clips with emotional expressions...
March 2017: Royal Society Open Science
https://www.readbyqxmd.com/read/28403132/orbital-reconstruction-in-neuroectodermal-tumor-of-the-orbit-multimodal-treatment-approach
#6
Jorge Ernesto Cantini A, Diana M Díaz López, Esteban Francisco Hernandez Florez
INTRODUCTION: Primitive neuroectodermal tumors of peripheral origin are very rare, and orbital neuroectodermal tumors are even more uncommon. Only 25 patients with primary orbital involvement in the pediatric age group have been reported. METHODS: In this article, the authors describe their experience in the multimodality treatment approach to treat neuroectodermal tumor of the orbit. The authors also present a male patient 3-year old presenting with a neuroectodermal tumor of the right orbit causing rapidly progressive proptosis...
April 11, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28390128/masticatory-muscle-activity-evaluation-by-electromyography-in-subjects-with-zygomatic-implants
#7
M de Rossi, M Palinkas, B Lucas, C Santos, M Semprini, L Oliveira, I Regalo, E Bersani, R Miglioranca, S Siéssere, S Regalo
BACKGROUND: Zygomatic implants are an alternative treatment in the rehabilitation of atrophic maxilla to promote stability in the stomatognathic system. The aim of this study was to compare the electromyographic (EMG) activity of masseter and temporalis muscles in controls and in individuals with complete implant-supported dentures anchored in the zygomatic bone. MATERIALS AND METHODS: Fifty-four volunteers of both genders (mean age 52.5 years) were selected and distributed into two groups: Individuals with zygomatic implant (ZIG; n=27) and fully dentate patients (CG; n=27)...
April 8, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28383117/an-alternative-prosthetic-approach-for-rehabilitation-of-two-edentulous-maxillectomy-patients-clinical-report
#8
Murat Yenisey, Şafak Külünk, Necati Kaleli
Obturator prosthesis is a common treatment method for maxillectomy patients for maintaining their oronasal separation and resuming their social lives. After tumor resection, the remaining anatomical structures have a significant effect on prosthesis retention. The present study describes the rehabilitation of two maxillectomy patients after cancer surgery using a prosthesis consisting of a denture and a special retentive obturator that is positioned in the anatomical undercuts of the nasal cavity. These patients have undergone total and subtotal maxillectomy surgery after the diagnosis of squamous cell carcinoma...
April 6, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28377144/a-three-dimensional-planned-osteotomy-on-the-zygomatic-arch-for-reduction-malarplasty
#9
H-L Kim, J-S Kwon, Y-J Choi, U-L Lee
During a reduction malarplasty, precise sectioning of the zygomatic arch according to the plan formulated in the diagnostic stage is very important, because differences in the locations of the osteotomies in the left and right zygomatic arch will result in facial asymmetry, and arch osteotomies that are placed at locations other than those specified during planning elicit unwanted results. A method for the precise planning and sectioning of the zygomatic arch involving the use of computed tomography (CT) and a viewer program is presented herein...
April 1, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28369018/anatomical-description-of-zygomatic-foramina-in-african-american-skulls
#10
Yue Zhao, Rao V Chundury, Alexander D Blandford, Julian D Perry
PURPOSE: The zygomaticofacial/temporal/orbital nerve is a terminal branch of the zygomatic nerve and exits the orbit through zygomatic foramina. The nomenclature in the literature varies with some studies identifying all 3 foramina on the malar surface of the zygoma, while others describe each along different aspects of the zygoma. In this study, foramen on the malar surface of the zygoma is termed zygomatic foramen, and the authors describe anatomical variations in the position and number of these foramina in an African American population...
March 31, 2017: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28361028/prevalence-and-location-of-the-posterior-superior-alveolar-artery-using-cone-beam-computed-tomography
#11
Maryam Tehranchi, Ferial Taleghani, Shahriar Shahab, Arash Nouri
PURPOSE: Insufficient knowledge of the anatomy of the maxillary sinuses prior to sinus graft surgery may lead to perioperative or postoperative complications. This study sought to characterize the position of the posterior superior alveolar artery (PSAA) within the maxillary sinuses using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: A total of 300 patients with edentulous posterior maxillae, including 138 females and 162 males with an age range of 33-86 years, who presented to a radiology clinic between 2013 and 2015 were enrolled in this retrospective cross-sectional study...
March 2017: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28360969/ticks-and-tick-bites-presenting-as-funny-moles-a-review-of-different-presentations-and-a-focus-on-tick-borne-diseases
#12
Joseph R Kallini, Amor Khachemoune
Purpose: To describe a man with an adherent tick mimicking a melanoma, summarize the salient features of this condition, and review other cases of ticks mistaken for dermatoses. Background: Ticks are obligatory ectoparasites. Disease-causing ticks belong to two families: Ixodidae (hard ticks) and Argasidae (soft ticks). Ticks thrive by consuming blood from animal hosts, and the transfer of infected blood from one host to the next is the method by which ticks spread disease. Materials and methods: The authors describe a man who presented to their dermatology clinic in New York with an unusual black pigmented lesion on the right zygomatic region of his face...
March 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28357005/peripheral-solitary-osteoma-of-the-zygomatic-arch-a-case-report-and-literature-review
#13
REVIEW
Thomas Starch-Jensen
Osteoma is a benign slow-growing osteogenic neoplasm commonly occurring in the craniofacial skeleton, characterized by the proliferation of compact and/or cancellous bone. Osteomas may be peripheral, central, or extraskeletal. Peripheral osteomas arise from the periosteum and are quite uncommon in the jaw bones. The exact aetiology and pathogenesis of peripheral osteoma are unknown. Clinically, peripheral osteomas are usually asymptomatic, but depending on the location and size of the lesion, it may cause swelling, pain, esthetic disfigurement and functional impairment...
2017: Open Dentistry Journal
https://www.readbyqxmd.com/read/28349495/a-novel-report-on-the-use-of-an-oncology-zygomatic-implant-retained-maxillary-obturator-in-a-paediatric-patient
#14
Amit Dattani, David Richardson, Chris J Butterworth
This report details the use of zygomatic oncology osseointegrated implants to support and retain a maxillary obturator in a 13-year-old male patient who underwent a right-sided hemi-maxillectomy (Brown Class 2b) (Brown and Shaw, Lancet Oncol 11:1001-8, 2010) for a myxoid spindle cell carcinoma. At the time of maxillary resection, two zygomatic oncology implants were inserted into the right zygomatic body and subsequently utilised to provide in-defect support and retention for a bar-retained maxillary acrylic obturator prosthesis, which restored the patient's aesthetics and function to a very high level...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28337421/zygomatic-miniplates-for-skeletal-anchorage-in-orthopedic-correction-of-class-iii-malocclusion-a-controlled-clinical-trial
#15
Erdal Bozkaya, Alime Sema Yüksel, Süleyman Bozkaya
OBJECTIVE: To evaluate the effects of facemask therapy, which was anchored from the zygomatic buttresses of the maxilla by using two miniplates, in skeletal Class III patients with maxillary deficiency. METHODS: Eighteen skeletal Class III patients (10 girls and 8 boys; mean age, 11.4 ± 1.28 years) with maxillary deficiency were treated using miniplate-anchored facemasks, and their outcomes were compared with those of a Class III control group (9 girls and 9 boys; mean age, 10...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28337417/skeletal-and-dentoalveolar-changes-after-miniscrew-assisted-rapid-palatal-expansion-in-young-adults-a-cone-beam-computed-tomography-study
#16
Jung Jin Park, Young-Chel Park, Kee-Joon Lee, Jung-Yul Cha, Ji Hyun Tahk, Yoon Jeong Choi
OBJECTIVE: The aim of this study was to evaluate the skeletal and dentoalveolar changes after miniscrew-assisted rapid palatal expansion (MARPE) in young adults by cone-beam computed tomography (CBCT). METHODS: This retrospective study included 14 patients (mean age, 20.1 years; range, 16-26 years) with maxillary transverse deficiency treated with MARPE. Skeletal and dentoalveolar changes were evaluated using CBCT images acquired before and after expansion. Statistical analyses were performed using paired t-test or Wilcoxon signed-rank test according to normality of the data...
March 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28330577/-custom-made-implant-for-complex-facial-reconstruction-a-case-of-total-replacement-of-temporo-mandibular-joint-zygomatic-arch-and-malar-bone
#17
D Guillier, V Moris, L-A See, M Girodon, B-L Wajszczak, N Zwetyenga
INTRODUCTION: Total prosthetic replacement of the temporo-mandibular joint (TMJ) has become a common procedure, but it is usually limited to the TMJ itself. We report about one case of complex prosthetic joint reconstruction extending to the neighbouring bony structures. CASE: A 57-year-old patient, operated several times for a cranio-facial fibrous dysplasia, presented with a recurring TMJ ankylosis and a complexe latero-facial bone loss on the right side. We performed a reconstruction procedure including the TMJ, the zygomatic arch and the malar bone by mean of custom made composite prosthesis (chrome-cobalt-molybdenum-titanium and polyethylene)...
February 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
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
#18
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/28326731/-complications-of-supratemporalis-approach-with-scalp-coronal-incision-for-orbital-zygomatic-fracture
#19
Wang Yanan, Huang Yanli, Dilnur Dilxat, Liu Weilong, Li Hui, Wang Yi, Liu Lei
OBJECTIVE: This study aimed to examine the complications of supratemporalis approach with scalp coronal incision for the treatment of orbital-zygomatic fractures. METHODS: A total of 206 patients with orbital-zygomatic fractures were treated with scalp coronal incision through the supratemporalis approach. The effects and complications of the treatment were analyzed. RESULTS: The degree of fracture of the 206 patients was successfully reduced...
February 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/28318573/ophthalmic-outcomes-of-fractured-zygomas
#20
R J McGalliard, J Kimpton, N M H McLeod
In patients with fractures of the zygomatic complex, computed tomography (CT) often identifies extensive defects in the orbital floor. Some surgeons recommend routine exploration and repair of these defects during repair of the zygoma, while others advocate a more selective approach, but there is a paucity of evidence either way. We report a retrospective case series of 50 patients who had open reduction and internal fixation of zygomatic fractures by a single surgeon in the maxillofacial department at the John Radcliffe Hospital, Oxford, between 2011and 2014...
March 16, 2017: British Journal of Oral & Maxillofacial Surgery
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