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Journal of Cranio-maxillo-facial Surgery

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https://www.readbyqxmd.com/read/30318326/rotation-tendency-of-the-posteriorly-displaced-proximal-segment-after-vertical-ramus-osteotomy
#1
Jong Chan Park, Jun Lee, Hun Jun Lim, Bong Chul Kim
Intraoral Vertical Ramus Osteotomy (IVRO) is one of the operative techniques used for orthognathic surgery. The aim of this study was to assess the posterior displacement of the proximal segment in patients undergoing IVRO at 1-year follow-up. In total, 52 hemimandibles from 26 patients who underwent IVRO in whom the proximal segment was posteriorly displaced without overlap with the distal segment at immediate post-operation (Imm) (30 cases, experimental group), and 26 patients in whom the proximal segment was not posteriorly displaced with overlap with the distal segment (Imm) (22 cases, control group) under three-dimensional computed tomography (3D CT) were included in the study...
September 27, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30333080/gracilis-transplantation-and-temporalis-transposition-in-longstanding-facial-palsy-in-adults-patient-reported-and-aesthetic-outcomes
#2
Martinus M van Veen, Pieter U Dijkstra, Suzanne le Coultre, Marc A M Mureau, Paul M N Werker
BACKGROUND: In longstanding facial palsy, gracilis free functional muscle transfer (FFMT) is currently considered to be the gold standard in smile reanimation. An alternative to muscle free flaps is local muscle transposition, with the temporalis muscle transposition being the preferred procedure, because of its direction of pull when transposed. The present study aimed to compare outcomes of gracilis FFMT neurotised by the masseteric nerve and temporalis muscle transposition in longstanding facial palsy using patient-reported and aesthetic outcomes...
September 26, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30322780/long-term-follow-up-of-repair-of-external-nasal-deformities-in-rhinoscleroma-patients
#3
Mohamed A Amer, Mohamed O Tomoum
INTRODUCTION: Rhinoscleroma (RS) is a chronic, progressive, granulomatous infectious disease endemic in Egypt and the Middle East, affecting the nose in 95-100% of cases, and resulting in functional and esthetic sequelae. The aim of the study was to investigate the feasibility of performing reconstructive procedures to improve external deformities in RS patients, with long-term follow up. PATIENTS & METHODS: This prospective, controlled cohort study included 25 patients who were seeking rhinoplasty to improve their esthetic appearance, with evident clinical and histopathological history of RS...
September 26, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30322777/comparative-evaluation-of-different-fixation-techniques-of-the-sagittal-split-ramus-osteotomy-in-10-mm-advancements-mechanical-testing-and-screw-insertion-torque
#4
Eder Alberto Sigua-Rodriguez, Raquel Correia de Medeiros, Douglas Rangel Goulart, Veber Luiz Bomfim-Azevedo, Sergio Olate, Jose Ricardo de Albergaria-Barbosa
PURPOSE: To compare the mechanical characteristics of five techniques for the functionally stable fixation of simulated sagittal split ramus osteotomy with 10 mm of advancement and to evaluate the screw insertion torque. MATERIALS AND METHODS: Fifty polyurethane hemimandibles with sagittal split ramus osteotomy and containing an advancement of 10 mm fixed and distributed as follows: Customized 3D Plate Group: 1 customized 3D miniplate; 4-Hole Plate Group: 2 miniplates with 4 holes; 6-Hole Plate Group: 2 miniplates with 6 holes; Hybrid Group: 1 flat miniplate with 4 holes and 1 bicortical screw; and Bicortical Screw Group: 3 bicortical screws...
September 26, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30333079/management-of-atrophic-mandibular-fractures-an-italian-multicentric-retrospective-study
#5
Giovanni Gerbino, Stefan Cocis, Fabio Roccia, Giorgio Novelli, Gabriele Canzi, Davide Sozzi
PURPOSE: The aim of this multicentric study was to retrospectively evaluate the surgical outcome of atrophic mandible fractures treated with open reduction and rigid fixation (ORIF), using load-bearing plates. MATERIALS AND METHODS: 55 patients from three trauma centers were retrieved for the study. Inclusion criteria were: edentulous patients with mandibular body fractures; mandibular body thickness <20 mm. Collected data included: cause of fracture; degree of atrophy (according to Luhr's classification); characteristics of the fracture; adequacy of reduction; postoperative complications...
September 25, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30327171/the-prevalence-of-pneumatized-articular-eminence-in-the-temporal-bone-do-we-need-a-high-resolution-computed-tomography-based-novel-risk-classification-for-eminectomy
#6
Nils Heim, Werner Götz, Rudolf H Reich, Anton Faron
INTRODUCTION: Besides mastoid air filled cells, pneumatizations (PN) occasionally occur in the articular eminence (AE) of the temporomandibular joint (TMJ). These findings represent no pathological character but may increase the risk of perforating the AE during eminectomy with potential harming the skull base. Various classifications catagorize the degree of temporal PN without focussing solely on the AE. Panoramic radiograph (PR) and computed tomographie (CT) are both described as suitable for diagnosing PNs...
September 25, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30318324/using-principal-component-analysis-to-describe-the-midfacial-deformities-in-patients-with-craniofacial-microsomia
#7
Britta D P J Maas, Britt I Pluijmers, Paul G M Knoops, Clifford Ruff, Maarten J Koudstaal, David Dunaway
PURPOSE: Craniofacial microsomia (CFM) is the result of a disturbance in embryologic development and is characterised by an asymmetric, mostly unilateral facial underdevelopment. The aim of this study is to understand the midfacial involvement in CFM using principal component analysis (PCA). MATERIALS AND METHODS: Pre-operative data from 19 CFM and 23 control patients were collected. A set of 71 landmarks was placed on three-dimensional (3D) reconstructions of all skulls to compare both populations...
September 25, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30318327/endoscopic-endonasal-skull-base-surgery-in-pediatric-patients-a-single-center-experience
#8
Filippo Giovannetti, Federico Mussa, Paolo Priore, Mirko Scagnet, Elena Arcovio, Valentino Valentini, Lorenzo Genitori
OBJECT: At present, a minimally invasive endoscopic endonasal approach is considered an efficient option for lesions affecting the anterior and middle skull base with sellar and parasellar region involvement. In this study we will retrospectively analyze the pediatric patients that we have been treating in the same medical center for the past four years, using an endoscopic approach in the skull base. METHODS: We performed a retrospective chart and imaging review of pediatric patients who underwent endoscopic endonasal skull base surgery (ESBS) at the Meyer Children's Hospital, (Azienda Ospedaliero Universitaria Meyer), in Florence, from January 2012 to July 2016...
September 24, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30309794/maxillary-osteomyelitis-associated-with-osteopetrosis-systematic-review
#9
REVIEW
Pedro Henrique de Azambuja Carvalho, Lucas Borin Moura, Mario Francisco Real Gabrielli, Marisa Aparecida Cabrini Gabrielli, Valfrido Antonio Pereira Filho
Osteopetrosis is a rare condition which presents increased bone density and deficient bone remodeling. The consequential complications include cranial nerve impairment due compression, bone fractures, and osteomyelitis. Maxillary osteomyelitis is uncommon even in osteopetrosis patients. This is a systematic review of the literature regarding the management and outcomes of maxillary osteomyelitis in patients with autosomal dominant osteopetrosis (ADO) type II. A case of this specific pathology is reported. There are 18 cases of maxillary osteomyelitis associated with ADO type II reported in the literature...
September 24, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30316655/advantages-of-performing-mentoplasties-with-customized-guides-and-plates-generated-with-3d-planning-and-printing-results-from-a-series-of-23-cases
#10
Antoni Arcas, Gerard Vendrell, Frank Cuesta, Laura Bermejo
PURPOSE: To evaluate the benefits of performing mentoplasty using custom guides and plates in a series of 23 patients. PATIENTS AND METHODS: An 18-month observational study in 23 patients (16 women, 7 men) who underwent procedures for chin augmentation (n = 15), reduction and centering mentoplasty (n = 6), chin asymmetry correction (n = 1) and placement of a custom chin implant to correct esthetics (n = 1) was conducted in the Department of Oral and Maxillofacial Surgery of Hospital Universitario Dexeus (Barcelona, Spain)...
September 21, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30301652/visualization-and-quantification-of-tongue-movement-during-articulation-is-ultrasound-a-valid-alternative-to-magnetic-resonance-imaging
#11
Katinka Kansy, Jürgen Hoffmann, Nicole Mistele, Veronika Shavlokhova, Martin Bendszus, Sabine Heiland, Johannes Krisam, Anne Geschwinder, Johann Gradl
BACKGROUND: Quality of life in tumour patients following combined ablative and reconstructive head and neck surgery varies significantly. This is at least partially due to differences in speech and swallowing function. A tool to objectively evaluate articulation by magnetic resonance imaging (MRI) has now been tested alongside ultrasound examination. PATIENTS AND METHODS: A standardized sequence of phonemes from the German language was established in 20 healthy volunteers and recorded in different planes by MRI and ultrasound...
September 21, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30322778/cleft-palate-formation-after-palatal-fusion-occurs-due-to-the-rupture-of-epithelial-basement-membranes
#12
Chisato Sakuma, Hideto Imura, Tomohiro Yamada, Toshio Sugahara, Azumi Hirata, Yayoi Ikeda, Nagato Natsume
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) induces cleft palate and hydronephrosis in the mouse embryo. Cleft palate occurs due to failure in palatal grow, but the underlying mechanisms are unclear. We investigated the mechanisms of cleft palate development in TCDD-exposed mouse embryos. We administered olive oil (control group) or TCDD diluted in olive oil (40 μg/kg) via gastric tubes to pregnant mice on gestational day (GD) 12. Embryos of control and TCDD-exposed groups were removed from pregnant mice on GD 14 and GD 15, respectively...
September 20, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30301651/relapse-tendency-after-bsso-surgery-differs-between-2d-and-3d-measurements-a-validation-study
#13
Yi Sun, Lei Tian, Heinz-Theo Luebbers, Constantinus Politis
Bilateral sagittal split ramus osteotomy (BSSO) surgery is used to correct various dento-skeletal deformities. Clinical outcomes are critically dependent on accurate and proper positioning of skeletal units created by BSSO. Monitoring skeletal changes postoperatively is a major part of follow-up. Between January 2015 and December 2015, 24 patients underwent BSSO surgery without any other segmental osteotomy (mean age, 29.9 ± 14.2 [range, 17-67] years; 18 females). Cephalometric X-rays and cone-beam computed tomography scans were performed 6 weeks and 12 months postoperatively...
September 20, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30301650/effects-of-systemic-erythropoietin-treatment-and-heterogeneous-xenograft-in-combination-on-bone-regeneration-of-a-critical-size-defect-in-an-experimental-model
#14
Nurettin Diker, Hande Sarican, Alev Cumbul, Ertugrul Kilic
The aim of the present study was to evaluate the effects of systemic EPO treatment alone or in combination with xenogenic bone graft augmentation on bone regeneration. Eleven adult male Sprague-Dawley rats were used in the present study. Rats were subjected to bilateral 5 mm critical size bone defects on the parietal bones under general anaesthesia. Right parietal bone defects were augmented with xenogenic bone graft and left parietal bone defect was left empty. Rats were randomly assigned for one of the two groups...
September 20, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30301649/the-association-of-variables-of-fibular-reconstructed-mandible-and-bite-force-in-oral-cancer-patients-with-dental-implant-rehabilitation
#15
Yi-Fang Huang, Chung-Ta Chang, Chih-Hsin Muo, Hsiang-Hsi Hong, Yu-Fu Shen, Chia-Chang Lin, Shih-Ping Liu
PURPOSE: The aim of this study was to investigate how the physical variables of fibular reconstructed mandibles with dental implants affects the relative bite force in oral cancer patients. MATERIALS AND METHODS: Over 7 years of follow-up, 13 oral cancer patients were enrolled who included 51 successful implants in the fibular flap. The tactile sensor analyzer evaluated the bite force. The crown-implant ratio, fibular, and rehabilitated dental length were measured using radiographic images...
September 20, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30292752/resorption-behaviour-of-the-articular-surface-dome-and-functional-outcome-after-open-reduction-and-internal-fixation-of-mandibular-condylar-head-fractures-using-small-fragment-positional-screws
#16
Wenko Smolka, Carl-Peter Cornelius, Carolin Lechler
PURPOSE: The aim of the study was to evaluate the resorption of the mandibular condylar head after open reduction and internal fixation of fractures with small-fragment screws and to evaluate the functional outcome. PATIENTS AND METHOD: Forty-eight patients (55 condylar head fractures) underwent surgical treatment. All kinds of complications were recorded. In a subgroup of 20 patients, the average loss of bone height of the condylar head joint surface was gauged by measuring the vertical distances from 3 selected reference points of the fixation hardware to the vertex of the condyle in views of multiplanar radiographs after 6 months...
September 20, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30318325/impact-of-voxel-size-and-scan-time-on-the-accuracy-of-three-dimensional-radiological-imaging-data-from-cone-beam-computed-tomography
#17
Eva Dach, Bastian Bergauer, Anna Seidel, Cornelius von Wilmowsky, Werner Adler, Michael Lell, Manfred Wichmann, Ragai-Edward Matta
PURPOSE: Three-dimensional (3D) radiological imaging plays an important role in surgical planning used in modern dentistry. The aim of this study was to optimize imaging parameters with a special focus on voxel size and scan time. MATERIAL AND METHODS: A virtual 3D master model of a macerated human skull was generated using an industrial optical noncontact white light scanner. The skull was X-rayed with cone-beam computed tomography that was applied using different settings for voxel size and acquisition time (voxel edge length of 0...
September 19, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30316654/comparison-of-the-bactericidal-effect-of-cold-atmospheric-pressure-plasma-capp-antimicrobial-photodynamic-therapy-apdt-and-polihexanide-phx-in-a-novel-wet-surface-model-to-mimic-oral-cavity-application
#18
S Hafner, M Ehrenfeld, A-C Neumann, Andreas Wieser
PURPOSE: Cold atmospheric pressure plasma (CAPP) is increasingly used for medical applications. The first devices are available from commercial manufactures, promising to improve wound healing and disinfection. The underlying antimicrobial mechanisms of CAPP are discussed, while the first results on its bactericidal efficiency against common bacterial species have already been published, with promising results. Most of the plasma sources used in these studies were built by the investigators themselves, and are not commercially available or licensed for clinical use...
September 19, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30309796/the-impact-of-harvest-length-and-detachment-of-the-interosseous-membrane-on-donor-site-morbidity-following-free-fibula-flap-surgery-a-biomechanical-experimental-study
#19
Samer George Hakim, Ali Shakery Tehrany, Robert Wendlandt, Hans-Christian Jacobsen, Thomas Trenkle, Peter Sieg
PURPOSE: The fibula flap has been established for orofacial reconstruction following ablative surgery. Donor-site morbidity of the lower leg may be explained by the harvest technique and particularly by detachment of the M. extensor halluces longus (EHL) and M. extensor digitorum longus (EDL). MATERIAL AND METHODS: On cadaveric lower leg specimens, the tendons of the EHL and EDL were dissected at the proximal phalanges and loaded with corresponding weights. The average displacement of the muscle was evaluated during the harvesting procedure...
September 19, 2018: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/30309795/osteogenic-capacity-of-diluted-platelet-rich-plasma-in-ectopic-bone-forming-model-benefits-for-bone-regeneration
#20
Marija Đ Vukelić-Nikolić, Stevo J Najman, Perica J Vasiljević, Tatjana M Jevtović-Stoimenov, Vladimir J Cvetković, Milica N Andrejev, Žarko J Mitić
Platelet-rich plasma (PRP) with normal and below-normal physiological concentrations of platelets is designated as diluted PRP (dPRP). The aims of this study are to evaluate whether bone mineral matrix in combination with dPRP possesses osteogenic capacity; and whether the differences in dynamics and osteogenic process pattern depend on different platelet concentrations, to what extent, and also what could be benefits for bone regeneration in clinical practice. Three types of implants were made: BMM-bone mineral matrix alone; dPRP/10-bone mineral matrix mixed with dPRP (concentration of platelets 10 times lower than physiological level) and dPRP/3-bone mineral matrix mixed with dPRP (concentration of platelets 3 times lower than physiological level)...
September 19, 2018: Journal of Cranio-maxillo-facial Surgery
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