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https://www.readbyqxmd.com/read/29155541/a-festive-case-series-of-emergencies-admissions-and-friendship-at-a-busy-oral-and-maxillofacial-unit
#1
Ross Keat, Paul Leavy, Mathew Thomas
The festive season presents oral and maxillofacial surgery (OMFS) dental core trainees (DCTs) with the challenges of managing an eclectic mix of emergencies. We present three such patients in this case series. First, Patient A, a 39-year-old homeless male who presented with a maxillary extra-oral draining sinus. Secondly, Patient B, a 38-year-old intra-venous (IV) drug user who suffered pan-facial fractures following an alcohol-fuelled assault. Finally, Patient C, a 38-year-old male who sustained a left zygomatic complex fracture a week previously, in attendance for corrective surgery...
December 2016: Dental Update
https://www.readbyqxmd.com/read/29148064/a-validation-study-of-the-langley-et-al-2017-decision-tree-model-for-sex-estimation
#2
Heather M Garvin, Alexandra R Klales
Langley et al. (2017) developed a sex estimation decision tree utilizing two traditional cranial traits (glabella and mastoid) and a new trait: zygomatic extension. This study aimed to test the reliability of their zygomatic extension scoring method and validate their sex estimation method. Ordinal score data were collected from 281 male and female U.S. White and Black individuals. The five traditional cranial traits were collected from physical specimens, while zygomatic extension was scored from 3D cranial models...
November 17, 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/29140721/long-term-stability-of-soft-tissue-changes-in-anterior-open-bite-adults-treated-with-zygomatic-miniplate-anchored-maxillary-posterior-intrusion
#3
Eiman S Marzouk, Hassan E Kassem
OBJECTIVES: To evaluate soft tissue changes and their long-term stability in skeletal anterior open bite adults treated by maxillary posterior teeth intrusion using zygomatic miniplates and premolar extractions. MATERIALS AND METHODS: Lateral cephalograms of 26 patients were taken at pretreatment (T1), posttreatment (T2), 1 year posttreatment (T3), and 4 years posttreatment (T4). RESULTS: At the end of treatment, the soft tissue facial height and profile convexity were reduced...
November 15, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/29140384/two-bilateral-zygomatic-implants-placed-and-immediately-loaded-a-retrospective-chart-review-with-up-to-54-month-follow-up
#4
Jay Neugarten, Frank J Tuminelli, Leora Walter
PURPOSE: To report on the outcome of placement of two bilateral zygomatic implants with an immediately loaded prosthesis. MATERIALS AND METHODS: A retrospective chart review was conducted of all patients treated with zygomatic implants between August 1, 2011 and June 6, 2016. All patients had at least two zygomatic implants placed bilaterally and immediately loaded with a provisional prosthesis the same day of implant placement. The implants were Nobel Biocare TiUnite or machined surface with lengths of 30 to 52...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29127505/high-resolution-ultrasonography-of-the-normal-extratemporal-facial-nerve
#5
Hannes Wegscheider, Gerd Fabian Volk, Orlando Guntinas-Lichius, Bernhard Moriggl
The technical advances in sonography of the past decade have supported the rapid improvement of high-resolution imaging, which enables the quick visualization of peripheral nerves at relatively limited costs. Recently, the possibility of visualizing the extratemporal facial nerve (FN) has been considered. This manuscript describes the first systematic evaluation in cadavers, of a novel ultrasonographic approach with this specific aim. Eight cadaveric hemifaces were evaluated by means of high-frequency ultrasound with two linear (13 and 22 MHz) and a convex transducer (6...
November 10, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29126962/your-attention-makes-me-smile-direct-gaze-elicits-affiliative-facial-expressions
#6
Jari K Hietanen, Terhi M Helminen, Helena Kiilavuori, Anneli Kylliäinen, Heidi Lehtonen, Mikko J Peltola
Facial electromyographic responses and skin conductance responses were measured to investigate whether, in a neutral laboratory environment, another individual's direct gaze elicits a positive or negative affective reaction in the observer. The results showed that greater zygomatic responses associated with positive affect were elicited by seeing another person with direct as compared to averted gaze. The zygomatic responses were greater in response to another person's direct gaze both when the participant's own gaze was directed towards the other and when the participant was not looking directly towards the other...
November 7, 2017: Biological Psychology
https://www.readbyqxmd.com/read/29125661/eyelid-reanimation-using-crossface-nerve-graft-relationship-between-surgical-outcome-and-preoperative-paralysis-duration
#7
Masayuki Okochi, Hiromi Okochi, Emiko Asai, Takao Sakaba, Kazuki Ueda
BACKGROUND: To reanimate the mimetic muscles, crossface nerve graft (CFNG) is an effective surgical option. However, muscle atrophy after facial paralysis may influence the surgical result. We analyzed the relationship between surgical result and preoperative paralysis duration. METHODS: We performed CFNG on 15 patients. The sural nerve was transferred between the affected and nonaffected sides of the zygomatic branch. Eyelid function and eyelid lid were evaluated using the modified House-Brackmann scale...
November 10, 2017: Microsurgery
https://www.readbyqxmd.com/read/29121815/preclinical-animal-models-for-temporomandibular-joint-tissue-engineering
#8
Alejandro Almarza, Bryan Brown, Boaz Arzi, David Faustino Ângelo, William L Chung, Stephen F Badylak, Michael Scott Detamore
There is a paucity of in vivo studies that investigate the safety and efficacy of temporomandibular joint (TMJ) tissue regeneration approaches, in part due to the lack of established animal models. Review of disease models for study of the TMJ is presented herein with an attempt to identify relevant preclinical animal models for TMJ tissue engineering, with emphasis on the disc and condyle. Although degenerative joint disease models have been mainly performed on mice, rats, and rabbits, pre-clinical regeneration approaches must employ larger animal species...
November 9, 2017: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/29121488/analysis-of-facial-symmetry-after-zygomatic-bone-fracture-management
#9
Mohamad Saleh Khaqani, Fateme Tavosi, Mahdi Gholami, Hamid Reza Eftekharian, Leila Khojastepour
PURPOSE: The location of the zygomatic bone plays an important role in facial symmetry and esthetics. The aim of this study was to determine and compare the frequency of facial asymmetry in a sample of patients who had undergone treatment of unilateral zygomaticomaxillary complex (ZMC) fractures (study group) and a sample of patients without ZMC fracture (control group). MATERIALS AND METHODS: This was a retrospective controlled cross-sectional study. The primary predictor variable was the type of ZMC fracture (linear or comminuted)...
October 14, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29115902/open-mouth-jaw-locking-in-cats-a-literature-review-and-use-of-computed-tomography-in-three-cases
#10
Anna E Nutt, Thomas Anderson, Margherita Gracis, Ivan Doran, Chris Warren-Smith, Sorrel J Langley-Hobbs
Case series summary This report summarises and reviews the published cases of open-mouth jaw locking in cats and describes three further cases. Case 1 was a 5-year-old, 5.3 kg male neutered domestic shorthair cat. CT identified changes consistent with temporomandibular joint (TMJ) dysplasia with osseous degenerative changes, and the cat subsequently underwent bilateral partial zygomectomy with bilateral partial coronoidectomy. Case 2 was a 10-year-old, 6.0 kg male neutered Exotic Shorthair. Aside from a fracture of the left maxillary canine tooth crown and absence of the left maxillary fourth premolar tooth, no abnormalities were found on CT scan...
November 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/29111474/the-middle-temporal-artery-surgical-anatomy-and-exposure-for-cerebral-revascularization
#11
Roberto Rodriguez Rubio, Michael T Lawton, Olivia Kola, Halima Tabani, Sonia Yousef, Ali Tayebi Meybodi, Jan-Karl Burkhardt, Ivan El-Sayed, Arnau Benet
BACKGROUND: The middle temporal artery (MTA) is the proximal medial branch of the superficial temporal artery (STA), supplying the temporalis muscle along with deep temporal arteries. Its use in vascularized flaps for reconstructive and otologic procedures has been described, yet its potential use in neurosurgery is not studied. We report a novel technique for exposing the MTA and evaluated its characteristics for extracranial-intracranial (EC-IC) cerebrovascular bypass. METHODS: After a curvilinear frontotemporal incision in 10 cadaveric specimens, the STA was dissected from distal to proximal...
October 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29109944/surgical-excision-of-osteochondroma-on-mandibular-condyle-via-preauricular-approach-with-zygomatic-arch-osteotomy
#12
Sang-Hoon Park, Jun-Hyeong An, Jeong Jun Han, Seunggon Jung, Hong-Ju Park, Hee-Kyun Oh, Min-Suk Kook
Background: Osteochondroma is a benign tumor that tends to develop in mandibular condyle and coronoid process in the craniofacial region. If tumor mass has grown from condyle into the infratemporal space with zygomatic arch obstructing the access, there are risks associated with surgical exposure and local resection of these masses. Case presentation: This study reports on a case of osteochondroma on mandibular condylar head where we treated with surgical excision via preauricular approach with 3D analysis...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29109848/a-hemangioma-of-the-zygomatic-bone-management-ensuring-good-reconstructive-and-aesthetic-results
#13
REVIEW
Gabriele Bocchialini, Andrea Castellani, Anna Bozzola, Alessandro Rossi
Hemangiomas are benign tumors representing only 0.7 to 1% of all bone tumors; those that arise in the zygomatic region are rarely described in the literature. Here, we describe the case of a 55-year-old woman with a mass in the right orbitozygomatic region. She was diagnosed on the basis of preoperative clinical manifestations, data from an earlier histopathological examination, and computed tomography (CT). The CT scan revealed a lesion in the right zygomatic region at the level of the cancellous component...
December 2017: Craniomaxillofacial Trauma & Reconstruction
https://www.readbyqxmd.com/read/29107123/use-of-buccal-fat-pads-to-prevent-vestibular-gingival-recession-of-zygomatic-implants
#14
P Guennal, J Guiol
Zygomatic implants can be used for dental rehabilitation in atrophic maxillae. This allows for maxillary grafts to be avoided while also permitting immediate functional use. Initially, the implants had a palatal emergence. The surgical technique has undergone continuous development and the implants are now sometimes extra-maxillary in order to better match with the prosthetic space. The main risk is vestibular exposure of the implant as a gingival recession caused by mucositis or peri-implantitis. When the first patients exhibited this problem, the authors sought a solution in order to prevent this complication from occurring...
November 3, 2017: Journal of Stomatology, Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29103447/nonsurgical-treatment-of-an-adult-with-a-skeletal-class-ii-gummy-smile-using-zygomatic-temporary-anchorage-devices-and-improved-superelastic-nickel-titanium-alloy-wires
#15
Yuji Ishida, Takashi Ono
Patients with a severe gummy smile and a skeletal Class II profile are difficult to treat. This case report describes an effective treatment alternative for improving a gummy smile in a patient with a severe Class II molar relationship, severe crowding, and lip protrusion using zygomatic anchorage devices and improved superelastic nickel-titanium wires. A 36-year-old woman had an excessive overjet and a deep overbite with a bilateral Angle Class II molar relationship. The cephalometric analysis demonstrated a Class II skeletal relationship (ANB, 9...
November 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29097021/zygomatico-orbital-artery-the-largest-artery-in-the-temporal-area
#16
Dong Hun Choi, Jeung Ryeol Eom, Jeong Woo Lee, Jung Dug Yang, Ho Yun Chung, Byung Chae Cho, Kang Young Choi
The zygomatico-orbital artery is the largest artery in the temporal area. With the increasing number of reconstructive and aesthetic surgeries in the area, in-depth understanding of this artery is needed. Thus, the aim of this anatomical study was to determine more information on the zygomatico-orbital artery using contrast-enhanced three-dimensional computer tomography (CT) and color-flow Doppler sonography. On the basis of CT images taken between October 2015 and October 2016 for diagnosing and treating maxillofacial conditions, 50 patients were selected...
October 16, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29080960/protocol-for-mandibular-reconstruction-with-zygomatic-implants-zygomatic-mandibular-implant
#17
Ruben Muñoz, Golaszewski Gajos, Jose Bladimir, Diaz Carvajal, Alvaro Luis, Grace Del Valle Speranza
INTRODUCTION: This study describes a modified protocol using transmandibular zygomatic implants with immediate occlusal loading for the comprehensive dental rehabilitation of previously reconstructed mandibular defects and reports preliminary results of this modified protocol. MATERIALS AND METHODS: Fifteen patients (6 female and 9 male), with a mean of age 40.26 years (range 12 to 68 years), had previously undergone immediate mandibular reconstruction using either autologous bone grafting, bone transport, or microvascular free-flap reconstruction for a variety of diagnoses...
October 28, 2017: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29044894/immediate-implant-placement-and-provisionalization-following-tumor-resective-surgery-in-the-midfacial-region-a-case-series
#18
Nelson Fernandes, Jacobus van den Heever, Leanne Sykes
Surgical and prosthodontic restoration of the midfacial region following tumor resection has always posed a considerable challenge, as this area serves crucial functional and esthetic roles. Being diagnosed and subsequently treated for facial tumors can have an immense psychosocial impact on a patient, as the resulting defects are often disfiguring, and lead to an inability to masticate, swallow, and speak clearly. Provision of an immediate facial and dental prosthesis at the time of surgery can limit these side effects and help reduce mental duress on these patients and their families, as well as aid in the process of rehabilitation...
October 18, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/29034512/superficial-temporal-artery-perforator-flap-anatomic-study-of-number-and-reliability-of-distal-branches-of-the-superficial-temporal-artery-and-clinical-applications-in-three-cases
#19
Achille Aveta, Beniamino Brunetti, Stefania Tenna, Francesco Segreto, Paolo Persichetti
BACKGROUND: Limited information is available about the anatomical feasibility and clinical applications of flaps based on distal divisions of the superficial temporal artery (STA). The aim of this study was to investigate the anatomy of the STA, focusing on the number and reliability of distal branches and to show representative cases for the use of such flaps for zygomatic, parieto-frontal and occipital reconstructions. METHODS: Fifty volunteers were examined bilaterally by Doppler to investigate the presence and variability of the distal divisions of STA branches...
October 16, 2017: Microsurgery
https://www.readbyqxmd.com/read/29033208/surgical-treatment-of-synkinesis-between-smiling-and-eyelid-closure
#20
Federico Biglioli, Otilija Kutanovaite, Dimitri Rabbiosi, Giacomo Colletti, M A S Mohammed, Alberto M Saibene, Silvia Cupello, Antonino Privitera, Valeria M A Battista, Alessandro Lozza, Fabiana Allevi
Synkinetic movements are common among patients with incomplete recovery from facial palsy, with reported rates ranging from 9.1% to almost 100%. The authors propose the separation of the neural stimulus of the orbicularis oculi from that of the zygomatic muscular complex to treat eyelid closure/smiling synkinesis. This technique, associated with an anastomosis between the masseteric nerve and a central branch of the facial nerve, as well as with the use of a cross-facial nerve graft, resolves most of the spasms of the midface musculature, leading to a more relaxed tone when the mimic muscle is at rest and enhancing muscle excursion during voluntary and spontaneous smiling...
September 18, 2017: Journal of Cranio-maxillo-facial Surgery
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