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Journal of Cranio-maxillo-facial Surgery

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https://www.readbyqxmd.com/read/29242025/efficacy-of-the-split-thickness-labial-flap-method-for-soft-tissue-management-in-anterior-ridge-horizontal-augmentation-procedures-a%C3%A2-clinical-prospective-study-in-the-anterior-maxilla
#1
Huajie Yu, Lixin Qiu
OBJECTIVE: To introduce a novel method of split-thickness labial flap in maxillary anterior ridge horizontal augmentation and to evaluate its efficacy and morbidity. MATERIALS AND METHODS: 230 patients were selected to receive either particulate or onlay grafting. A split-thickness labial flap was applied to cover the grafted area and close the wound. The incidence of postsurgical complications and the level of patient discomfort were evaluated. A visual analog scale was used to quantify the amount of pain and swelling in the patients...
November 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233699/comparative-finite-element-analysis-of-skull-mechanical-properties-following-parietal-bone-graft-harvesting-in-adults
#2
Pierre Haen, Guillaume Dubois, Patrick Goudot, Thomas Schouman
INTRODUCTION: Parietal bone grafts are commonly used in cranio-maxillo-facial surgery. Both the outer and the internal layer of the calvarium can be harvested. The bone defect created by this harvesting may induce significant weakening of the skull that has not been extensively evaluated. Our aim was to evaluate the consequences of parietal bone graft harvesting on mechanical properties of the skull using a finite element analysis. METHODS: Finite elements models of the skull of 3 adult patients were created from CT scans...
November 26, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233697/retrospective-analysis-of-471-surgically-treated-zygomaticomaxillary-complex-fractures
#3
Michael Blumer, Sabina Kumalic, Thomas Gander, Martin Lanzer, Claudio Rostetter, Martin Rücker, Heinz-Theo Lübbers
PURPOSE: Zygomaticomaxillary complex (ZMC) fractures are frequent in facial trauma; only fractures of the mandible are more common. Although the frequency of these fractures is geographically consistent, the aetiology differs widely among countries and even regions. Differences in socio-economic status and the ageing population seem to be two causes. This retrospective epidemiological study evaluates patients who were surgically treated for ZMC fractures at a Swiss university clinic. MATERIALS AND METHODS: This study included 471 patients who were surgically treated for ZMC fractures in an oral and maxillofacial surgery clinic at a Swiss university hospital between January 2004 and December 2012...
November 23, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29224971/biomechanical-effects-of-a-mandibular-advancement-device-on-the-temporomandibular-joint
#4
David S P Heidsieck, Jan Harm Koolstra, Maurits H T de Ruiter, Aarnoud Hoekema, Jan de Lange
PURPOSE: Mandibular advancement devices are commonly used in the treatment of patients with mild to moderate obstructive sleep apnea (OSA). Designed to maintain the mandible in forced protrusion while being worn, mandibular advancement devices (MADs) are intended to increase the upper airway during sleep, thereby reducing OSA symptoms. Depending on the extent of mandibular protrusion, side effects including temporomandibular joint dysfunction are frequently reported. These are likely to reduce overall treatment success by affecting therapeutic adherence...
November 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233704/risk-factors-for-post-operative-complications-after-procedures-for-autologous-bone-augmentation-from-different-donor-sites
#5
Andreas Sakkas, Alexander Schramm, Karsten Winter, Frank Wilde
AIM: The aim of this study has been to identify risk factors for post-operative complications after grafting bone from different donor sites prior to implant placement. MATERIAL AND METHODS: The study encompassed 279 patients who underwent autologous bone augmentations in a 2-stage procedure, harvested from three intraoral and one extraoral donor sites, as well as sinus floor elevations prior to implant placement. The following complications were recorded: soft tissue dehiscence; wound infection; bone graft exposure; sensory disturbance; sinusitis symptoms; haemorrhage; graft failure; implant failure...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233702/endoscopic-endonasal-repair-with-polyethylene-implants-in-medial-orbital-wall-fractures-a-prospective-study-on-25-cases
#6
Giacomo Colletti, Alberto Maria Saibene, Lorenzo Giannini, Margherita Dessy, Carlotta Pipolo, Fabiana Allevi, Paolo Lozza, Giovanni Felisati, Federico Biglioli
The aim of the study was to assess the mid-term effectiveness and safety of an original technique consisting of reconstructing fractures of the medial wall of the orbit with porous polyethylene implants with an exclusive transnasal approach. Twenty-five patients were treated. Each patient underwent a pre-operative ophthalmologic evaluation and a CT scan. The surgery started with an anteroposterior ethmoidectomy of the fractured side; all the fractured bone fragments were removed and all usual landmarks of healthy bony margins were identified...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233700/volumetric-analysis-of-keratocystic-odontogenic-tumors-and-non-neoplastic-jaw-cysts-comparison-and-its-clinical-relevance
#7
Martin Kauke, Ali-Farid Safi, Andrea Grandoch, Hans-Joachim Nickenig, Joachim Zöller, Matthias Kreppel
The keratocystic odontogenic tumor (KCOT) is capable of causing vast osseous destruction. Histopathological examination is pivotal for diagnosis. The diagnostic process can sometimes be hindered by tissue inflammation of KCOTs with loss of defining criteria, resulting in misdiagnosis as an odontogenic jaw cyst. We discuss the possible merits of volumetric analysis when facing this particular diagnostic dilemma and for pathophysiological characterization of KCOTs. We included 114 patients, of whom 27 were histopathologically diagnosed with a KCOT and 87 with dentigerous (n = 41) and periapical cyst (n = 46)...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233698/ex-corpore-linguae-a-cohort-analysis-after-a-unique-surgical-technique-in-oral-cancer-resection
#8
Jan-Falco Wilbrand, Daniel Schmermund, Michael Knitschke, Philipp Streckbein, Christopher Kähling, Heiko Kerkmann, Heidrun Schaaf, Hans-Peter Howaldt, Sebastian Böttger
OBJECTIVE: Resection of posteriorly located oral squamous cell carcinomas (OSCCs) remains challenging for head and neck surgeons. However, several surgical techniques, such as lip and mandibular splitting, as well as submental "visor drop-down" of intraoral soft tissues, have been proposed for this purpose. Merrick et al. suggested that a pedicled genial drop-down surgical approach should be used to resect dorsally located OSCCs. Our study investigated patient outcomes following this surgical procedure, as no previous study has analyzed long-term follow-up data...
November 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233703/the-risk-of-osteonecrosis-on-alveolar-healing-after-tooth-extraction-and-systemic-administration-of-antiresorptive-drugs-in-rodents-a-systematic-review
#9
REVIEW
Victor Lousan do Nascimento Poubel, Carolina Amália Barcellos Silva, Luis André Mendonça Mezzomo, Graziela De Luca Canto, Elena Riet Correa Rivero
PURPOSE: There is much concern about the increasing number of patients with medication-related osteonecrosis of the jaw (MRONJ), and many studies have been published in an attempt to understand the pathophysiology of this condition. This study aimed to systematically review the literature on MRONJ arising in rodents under antiresorptive drug therapy after tooth extraction. METHODS: A search of electronic databases, including LILACS, PROQUEST, PubMed, SCOPUS, and the Web of Science...
November 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29233701/in%C3%A2-vivo-effects-of-geranylgeraniol-on-the-development-of-bisphosphonate-related-osteonecrosis-of-the-jaws
#10
Filip Koneski, Danica Popovic-Monevska, Icko Gjorgoski, Jovanka Krajoska, Mirjana Popovska, Ilijana Muratovska, Boris Velickovski, Gordana Petrushevska, Vladimir Popovski
BACKGROUND: Bisphosphonate-related osteonecrosis of the jaws (BRONJ) is a complication of the bisphosphonate (BP) treatment and its pathopysiology is still not fully understood. The existing preventive and treatment options require updates and more attention. Geranylgeraniol (GGOH) so far demonstrated an increased activity and viability of the cells previously treated with zoledronic acid (ZA). The aim of this study was to evaluate the in vivo effects of GGOH on the development of BRONJ...
November 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29229364/pathology-and-management-of-masses-in-the-accessory-parotid-gland-region-24-year-experience-at-a-single-institution
#11
Hailong Ma, Shufang Jin, Zhong Du, Lizhen Wang, Zhiyuan Zhang, Yan'an Wang
PURPOSE: Masses in the accessory parotid gland (APG) region are clinically rare and their management can lead to conflicts between the need for tumor resection and facial cosmesis. The aim of this study was to analyze the pathological classifications and management of APG lesions in our hospital. MATERIALS AND METHODS: From January 1993 to March 2017, 130 patients with primary tumors in the APG region who underwent surgical treatment were enrolled. Follow-up surveys after surgery were then carried out...
November 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29229365/repair-of-maxillary-cystic-bone-defects-with-mesenchymal-stem-cells-seeded-on-a-cross-linked-serum-scaffold
#12
Luis Miguel Redondo, Verónica García, Beatriz Peral, Alberto Verrier, José Becerra, Ana Sánchez, Javier García-Sancho
Tissue engineering combining cross-linked serum scaffolds with bone-derived mesenchymal stem cells has displayed excellent results for repair of maxillofacial bone defects in animal models, but it had not been tested in humans yet. We present here a pilot clinical trial using autologous bone-derived mesenchymal stem cells (H-MSV) grown in a serum cross-linked scaffold (BioMax) for treatment of maxillary cysts in 9 patients. Cells obtained from alveolar bone were seeded in the BioMax scaffold prepared from autologous serum, expanded under GMP conditions, and subjected to osteogenic differentiation for 3-4 weeks before application...
November 16, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29208487/in-vitro-comparison-of-mechanical-resistance-between-two-straight-plates-and-a-y-plate-for-fixation-of-mandibular-condyle-fractures
#13
Glaciele Maria de Souza, Danillo Costa Rodrigues, Tóride Sebastião Celegatti Filho, Roger William Fernandes Moreira, Saulo Gabriel Moreira Falci
OBJECTIVE: To compare the mechanical resistance of conventional plates with a modified Y-plate in mandibular condyle fracture. MATERIALS AND METHODS: 40 synthetic hemi-mandibular polyurethane replicates were used. Two groups of fixing materials were included: 20 mandibles fixed with 40 straight plates with four roles each (2.0 mm system) and 20 mandibles fixed with 20 Y-shaped plates (2.0 mm system and 1.5 mm thickness). The samples were submitted to linear loading in the following directions: 10 mandibles from each group from lateral to medial and 10 mandibles from each group from anterior to posterior...
November 11, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29198577/bone-autografts-allografts-placed-simultaneously-with-dental-implants-in-rabbits
#14
Marna Ribeiro, Erica Hohlenwerger Fraguas, Keila Ilse Cangussu Brito, Yeon Jung Kim, Debora Pallos, Wilson Roberto Sendyk
OBJECTIVE: This study compared stability, removal torque, bone implant contact (BIC) and area (BA) of implants installed simultaneously with onlay autografts or allografts in rabbits' tibias. MATERIAL AND METHODS: Total of 18 rabbits were used in this study. Fresh frozen allografts were obtained from six animals at T(-6). Two implants with autogenous grafts (Group 1) or allografts (Group 2) were simultaneously inserted into both sides of the tibiae in a vertical periimplant defect model at T0...
November 11, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29203089/multivariate-analysis-of-risk-factors-for-postoperative-wound-infection-following-oral-and-oropharyngeal-cancer-surgery
#15
Margita Belusic-Gobic, Arijan Zubovic, Robert Cerovic, Andrea Dekanic, Diana Marzic, Gordana Zamolo
PURPOSE: The goal of this study was to identify risk factors for wound infections in patients with oral cancer who underwent surgical procedures. MATERIALS AND METHODS: This study included 195 patients who underwent surgical treatment of oral and oropharyngeal cancer over a 7-year period. Wound infection was defined as the occurrence of purulent content from the wound or as an appearance of exudate with signs of local infection and positive cultures taken from the wound...
November 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29198578/influence-of-gender-on-epithelial-host-defence-peptide-gene-expression-under-non-infected-and-infected-conditions-a-basic-medical-research-study
#16
Nils Hagen Rohleder, Klaus-Dietrich Wolff, Sina Heimüller, Anita Axt, Marco Rainer Kesting, Steffen Koerdt, Thomas Mücke, Niklas Rommel
Bacterial resistance against conventional antibiotics is increasing. This introduces challenges, for example, in the treatment of infected surgical wounds. Host defence peptides (HDP), which are endogenous peptide antibiotics, show broad-spectrum antimicrobial effectiveness. They protect the organism against pathological microorganisms. Synthetic HDP might supplement or even become alternatives to conventional antibiotics. Knowledge of their quantities under physiological and pathophysiological conditions is therefore required...
November 10, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29198376/short-and-long-term-changes-of-the-pharyngeal-airway-after-surgical-mandibular-advancement-in-class-ii-patients-a-three-dimensional-retrospective-study
#17
Oliver Ristow, Thomas Rückschloß, Moritz Berger, Thekla Grötz, Steffen Kargus, Johannes Krisam, Robin Seeberger, Michael Engel, Jürgen Hoffmann, Christian Freudlsperger
PURPOSE: To evaluate the short- and long-term impact of mandibular-only advancement on pharyngeal airway space (PAS) changes by using cone-beam computed tomography (CBCT) and a new segmentation software. Furthermore, to determine whether a correlation exists between forward movement and PAS gain. MATERIALS AND METHODS: A retrospective evaluation of a homogeneous cohort of Class II patients who had undergone mandibular-only advancement was performed. Pre- (T0), post- (T1), and 1-year post-operative (T2) CBCT scans were obtained in each case, and the changes in PAS parameters (volume and smallest cross-sectional area) were compared with new segmentation software...
November 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29195723/a-non-language-specific-speech-test-to-evaluate-the-speech-of-cleft-patients-from-different-language-and-cultural-backgrounds-a-pilot-study
#18
Heiko Cornelis Kleinfeld, Ann Christina Foldenauer, Mehrangiz Ghassemi, Ali Modabber, Bijan Movahedian Attar, Syed Sayeed Ahmed, Christiane Neuschaefer-Rube, Alireza Ghassemi
Cleft speech tests are not universally available. We developed a tool to fill this gap, especially in the context of a cleft mission setting. We performed a pilot study to evaluate the test's ability to differentiate between the speech of cleft patients and healthy individuals from three different language backgrounds. We used 78 made-up, nonsensical syllables to evaluate hypernasality, nasal emissions, and consonant errors. Cleft (n = 41) and non-cleft (n = 39) individuals from three countries were included in this study...
November 4, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29174551/surgical-management-of-severe-osteoradionecrosis-of-the-mandibular-bone-by-using-double-free-flap-reconstruction
#19
Niklas Rommel, Marco Rainer Kesting, Nils Hagen Rohleder, Klaus-Dietrich Wolff, Jochen Weitz
PURPOSE: Osteoradionecrosis (ORN) of the jaws represents one of the most severe complications after primary or adjuvant radiation therapy (RT) of large head and neck tumors. In advanced ORN cases, surgical management is generally considered the therapy of choice. However, in several severe ORN patients with extensive bone and soft tissue defects, functional and aesthetic reconstruction represents a huge challenge for any surgeon, with an increased risk of post-operative wound healing disorders...
November 2, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/29242026/the-localization-and-risk-factors-of-squamous-cell-carcinoma-in-the-oral-cavity-a-retrospective-study-of-1501-cases
#20
Britta V Sundermann, Lorenz Uhlmann, Jürgen Hoffmann, Kolja Freier, Oliver C Thiele
Head and neck cancer is the tenth leading cause of cancer mortality. Ninety percent of tumours in the oral cavity are squamous cell carcinomas. Information about the exact localisation of OSCC is missing in the literature. In the present study, we retrospectively analysed a total of 1501 OSCC patients, who were treated between 1975 and 2009. The purpose of this study was to examine the localisation of OSCC tumours and to analyse the influence of various parameters on tumour localisation. 71.5% of these patients were male and 28...
October 31, 2017: Journal of Cranio-maxillo-facial Surgery
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