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Journal of Cranio-maxillo-facial Surgery

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https://read.qxmd.com/read/30846326/enhancing-adhesion-and-alignment-of-human-gingival-fibroblasts-on-dental-implants
#1
Oral Cenk Aktas, Wolfgang Metzger, Ayman Haidar, Yahya Açil, Aydin Gülses, Jörg Wiltfang, Catharina Marques Sacramento, Frank Philipp Nothdurft
BACKGROUND: Promoting the directional attachment of gingiva to the dental implant leads to the formation of tight connective tissue which acts as a seal against the penetration of oral bacteria. Such a directional growth is mostly governed by the surface texture. MATERIAL AND METHODS: In this study, three different methods, mechanical structuring, chemical etching and laser treatment, have been explored for their applicability in promoting cellular attachment and alignment of human primary gingival fibroblasts (HGFIBs)...
February 21, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30846325/novel-multi-axial-alveolar-distractor-part-i-design-manufacture-and-mechanical-functional-tests
#2
Yang-Sung Lin, Cheng-Hsien Wu, Yuan-Chih Liu, Chun-Li Lin
PURPOSE: This study developed a novel multi-axial alveolar distractor and evaluated its safety and effectiveness by performing various mechanical tests and finite element (FE) analysis. MATERIALS AND METHODS: A ball-and-socket joint with a high degree of freedom was proposed as the design concept to make the distractor produce a cone trajectory motion range of up to 60° with respect to the transport screw (central axis). This device was manufactured with Ti6Al4V alloy...
February 20, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30850304/cranioplasty-with-patient-specific-implants-in-repeatedly-reconstructed-cases
#3
David Koper, Mariel Ter Laak-Poort, Bernd Lethaus, Kensuke Yamauchi, Lorenzo Moroni, Pamela Habibovic, Peter Kessler
OBJECTIVE: Cranioplasty is indicated to restore form and function of bone defects of the neurocranium. Autografts are the gold standard, alloplastic materials are used when autologous bone is unavailable or unsuitable, and increasing evidence supports the use of patient-specific implants (PSIs) for reconstruction. We reviewed our own patient data to assess pre- and intraoperative aspects, complications and costs in patients that were treated with PSIs from titanium or polyetheretherketone (PEEK) for skull bone reconstruction...
February 14, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30857928/the-rare-entity-of-cystadenocarcinoma-cac-in-parotid-gland-a-single-center-experience
#4
Bing Guo, Yu-An Cao, Xingjun Qin, Chunyue Ma
PURPOSE: Cystadenocarcinoma (CAC) is an extremely rare disease in parotid gland. This study aimed to identify the clinical characteristics of CAC, and the therapeutic options for its treatment. An attempt was also made to identify postoperative recurrence-related risk factors. MATERIAL AND METHODS: A retrospective study was conducted of CAC patients treated between 2008 and 2018. Predictive factors for postoperative recurrence (5-year RFS rate) were preliminarily filtered by Kaplan-Meier analysis and then further confirmed by a Cox regression model...
February 13, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30837103/anatomical-aspects-of-optic-nerve-decompression-in-transcranial-and-transsphenoidal-approach
#5
Tuğba Moralı Güler, Selçuk Yılmazlar, Gonca Özgün
PURPOSE: The proximal portion of the optic nerve is quite prone to injury at the entrance of the optic foramen by tumoral or traumatic pathologies. As a result, it is important to show which way and which part we can effectively and safely decompress the pathologies affecting the optic nerves. In this study, we compared the decompression of the proximal segment of the optic canal Likewise, we investigated the anatomy and histopathology of the opticocarotid region from below and above...
February 13, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30878462/the-absolute-and-relative-effects-of-presurgical-nasoalveolar-moulding-in-bilateral-cleft-lip-and-palate-patients-compared-with-nasal-growth-in-healthy-newborns
#6
Florian D Grill, Andrea Rau, Franz X Bauer, Fiona Hellmundt, Bettina Hilmer, Maximilian Roth, Alexandra V Behr, Klaus-Dietrich Wolff, Denys J Loeffelbein, Lucas M Ritschl
BACKGROUND: This study investigated the efficiency of nasoalveolar moulding (NAM) in patients presenting with bilateral cleft lip and palate (BCLP). It focused explicitly on nasal outcome and therefore made comparisons with healthy age-matched infants with normal nasal development. METHODS: Nasal impressions from 19 BCLP patients were analysed at the beginning and at the end of NAM treatment. In addition, nasal impressions from 32 healthy newborns were taken monthly for 4 months...
February 11, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30799132/synovial-chondromatosis-of-the-temporomandibular-joint-a-clinical-and-arthroscopic-study-of-16-cases
#7
Lee Mui Lee, Yao Min Zhu, Dan Di Zhang, Yong Qiang Deng, Ying Gu
OBJECTIVES: Present and overview the clinical finding, management and arthroscopic study of Synovial Chondromatosis (SC) cases in Temporomandibular Joint (TMJ) treated by our team. STUDY DESIGN: During year 2008-2018, 16 TMJ SC cases were treated and reviewed. The clinical manifestations, radiographic data, arthroscopic study and pathologic findings were recorded and analyzed. RESULTS: Average age of first visit was 32.68. The ratio of male/female was 2/14, right/left was 7/9...
February 11, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30797662/numerical-simulations-of-different-configured-venous-anastomosis-in-microvascular-flap-transfer
#8
Julian Wittenborn, Martin Büsen, Sam Liao, Alexander Bartella, Jan Teichmann, Mohammad Kamal, Frank Hölzle, Bernd Lethaus
BACKGROUND: Free flap surgery is a well-established method for covering large defects in the head and neck region. Most cases of flap failure are caused by venous thrombosis. Thus, there is a lot of discussion about the ideal design of venous anastomosis and its impact on the hemodynamics in the vessels. This study concentrates on the simulation of flow patterns of different designs of venous anastomoses. METHODS: First, fluid flow rates were measured using transit-time flow measurement in the veins of 20 patients who received free flaps between 2016 and 2017...
February 10, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30797661/dental-implants-placed-in-resorbed-alveolar-ridges-reconstructed-with-iliac-crest-autogenous-onlay-grafts-a-26-year-median-follow-up-retrospective-study
#9
Carlo Maiorana, Pier Paolo Poli, Anna Mascellaro, Susanna Ferrario, Mario Beretta
PURPOSE: To evaluate the long-term outcome of dental implants placed with a staged procedure in resorbed alveolar ridges reconstructed with iliac crest autogenous onlay grafts. MATERIALS AND METHODS: All consecutive patients treated with iliac crest onlay bone grafts and dental implants were retrospectively evaluated. During the appointment, clinical and radiological examinations were conducted to assess implant survival. A survived implant was defined as an implant still stable and in function at the follow-up visit...
February 10, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30792032/bleeding-assessment-in-oral-surgery-a-cohort-study-comparing-individuals-on-anticoagulant-therapy-and-a-non-anticoagulated-group
#10
Amanda Leal Rocha, Sicilia Rezende Oliveira, Alessandra Figueiredo Souza, Denise Vieira Travassos, Lucas Guimarães Abreu, Daniel Dias Ribeiro, Tarcília Aparecida Silva
Some prospective studies have been designed specifically to investigate perioperative bleeding in dental surgery. The quantitative assessment of intraoperative blood loss can be useful for indicating the real risk of bleeding complications, especially in medically compromised individuals. The aim of this study was to evaluate the pattern of bleeding in individuals under vitamin K antagonist (VKA) therapy and non-anticoagulated individuals submitted to dental extractions. Perioperative bleeding was evaluated by using a total collected bleeding corrected by absorbance reading (dental bleeding score)...
February 7, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30777736/mandibular-distraction-osteogenesis-versus-sagittal-split-ramus-osteotomy-in-managing-obstructive-sleep-apnea-a-randomized-clinical-trial
#11
Wai Kin Tsui, Yanqi Yang, Colman Mcgrath, Yiu Yan Leung
PURPOSE: To compare mandibular distraction osteogenesis (MDO) to sagittal split ramus osteotomy (SSRO) to treat moderate-to-severe obstructive sleep apnea (OSA), and their surgical morbidities and skeletal stability. MATERIALS AND METHODS: A randomized clinical trial was conducted on non-syndromic adult patients with apnea-hypopnea index (AHI) 15 or above to receive MDO or SSRO as part or whole skeletal advancement surgery. Post-operative 1 year OSA cure rate (AHI < 5/hour) and treatment success rate (50% reduction of AHI and AHI< 20/hour) were compared...
February 5, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30826113/a-new-multilayered-membrane-for-tissue-engineering-of-oral-hard-and-soft-tissue-by-means-of-melt-electrospinning-writing-and-film-casting-an-in-vitro-study
#12
Andreas Fuchs, Almoatazbellah Youssef, Axel Seher, Stefan Hartmann, Roman C Brands, Urs D A Müller-Richter, Alexander C Kübler, Christian Linz
Membranes that form a mechanical barrier not only for cells but also for the bacterial flora of the oral cavity may be helpful in infection-free wound healing for guided tissue regeneration (GTR) applications in the field of oral- and maxillofacial surgery. Controlled wound healing without interference from bacterial contamination appears to be achievable in combination with surface scaffolds for bone- and soft tissue regeneration. As this has not yet been realized, we developed multilayered membranes in this study consisting of specific surface scaffolds for bone- and mucosal regeneration as well as bacteria-tight core membranes...
February 4, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30799133/respiratory-and-volumetric-changes-of-the-upper-airways-in-craniofacial-synostosis-patients
#13
Mannelli Giuditta, Arcuri Francesco, Spacca Barbara, Genitori Lorenzo, Spinelli Giuseppe
To assess postoperative changes of the upper airway in a pediatric syndromic cranial-synostosis (SCS) population who underwent Le Fort III (LFIII) or frontofacial advancement by distraction osteogenesis (DO). Charts' review of 25 SCS infants presented at our tertiary-care children's hospital between January 2005 and December 2016 was performed. Preoperative (T0) and postoperative (T1) three-dimensional computed tomography (3D-CT) and polysomnography (PSG) were recorded. Differences between T0 and T1 airway volumes and changes in PSG data were analyzed...
February 4, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30777738/facial-and-midfacial-symmetry-in-cleft-patients-comparison-to-non-cleft-children-and-influence-of-the-primary-treatment-concept
#14
Nabil Ben Bouhjar, Johannes Kleinheinz, Dieter Dirksen, Philipp Berssenbrügge, Christoph Runte, Kai Wermker
PURPOSE: Patients with cleft lip, alveolus and palate (CLAP) may suffer from marked asymmetry with an impact on attractiveness and psychosocial aspects. The aim of this study was to assess symmetry in CLAP patients compared to non-cleft controls of similar age with regard to cleft type and treatment concept. MATERIALS AND METHODS: In CLAP patients with different cleft forms and in healthy non-cleft subjects (control group) a three-dimensional stereophotogrammetric face scan was performed and an objective 3D asymmetry index (AI) was calculated for the whole face, the midface, the upper lip and the nose...
February 4, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30777737/preliminary-clinical-study-of-chinese-standard-alloplastic-temporomandibular-joint-prosthesis
#15
Luxiang Zou, Jieyun Zhao, Dongmei He
PURPOSE: To evaluate the preliminary clinical outcomes on the Chinese standard temporomandibular joint (TMJ) prostheses. PATIENTS AND METHODS: Patients who underwent Zimmer Biomet and Chinese standard prostheses by one surgeon between January 1st 2016 and June 30th 2017 were included in the study. Maximum incisal opening (MIO), pain, diet, and joint function were measured; CT scans were taken before and after the operation and during at least a 12-months follow-up for evaluation...
February 4, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30772173/catching-condyle-endoscopic-assisted-transoral-open-reduction-and-rigid-fixation-of-condylar-process-fractures-using-an-auto-reposition-and-fixation-osteosynthesis-plate
#16
Philipp Poxleitner, Pit Jacob Voss, David Steybe, Stefan Schlager, Steffen Schwarz, Marc Anton Fuessinger, Rainer Schmelzeisen, Marc Metzger
INTRODUCTION: Fractures of the mandibular condyle are reported to account for 9 %-45 % of all mandibular fractures. There has been a long lasting controversy on the superiority of different treatment options with endoscopic-assisted transoral approaches gaining increasing attention in recent years. In this article, we report the application of a newly developed osteosynthesis plate for an auto reposition, reconstruction and rigid fixation of condylar process fractures. MATERIAL AND METHODS: We present 6 cases of uni- or bilateral fractures of the condylar process treated with a transoral open reduction and rigid fixation using an auto reposition plate...
February 4, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30773330/a-rare-odontogenic-cyst-gingival-cyst-of-the-adult-a-series-of-20-new-cases-from-a-single-center
#17
Stephanie Kenig Viveiros, Rodrigo Finger de Carvalho Pinho, Marcos Custódio, Suzana Cantanhede Orsini Machado de Sousa, Decio Dos Santos Pinto
Gingival cyst of the adult (GCA) is a rare entity and comprises around 0.3% of all odontogenic cysts. Due to its rarity, there are a few retrospective studies on it. Therefore, the aim of this study was to present casuistic data of a 20-year retrospective study performed in a Brazilian oral pathology reference center. All cases diagnosed as gingival cyst of the adult in the last 20 years were retrieved from the files of the Oral Pathology Service. Data from the lesions and patients were tabulated and presented descriptively...
February 2, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30808610/therapeutic-efficacy-of-vacuum-sealing-drainage-assisted-irrigation-in-patients-with-severe-multiple-space-infections-in-the-oral-maxillofacial-and-cervical-regions
#18
Yu Qiu, Yanfen Li, Binju Gao, Jun Li, Lizhen Pan, Zuo Ye, Yang Lin, LiSong Lin
OBJECTIVE: We compared the clinical efficacy between the vacuum sealing drainage (VSD)-assisted irrigation technique and traditional abscess incision and drainage technique in the treatment of severe multiple-space infections in the oral, maxillofacial, and cervical regions. METHODS: Data of 73 patients with severe oral, maxillofacial, and cervical infections, who were admitted to the Oral and Maxillofacial Surgery Department at the First Affiliated Hospital of Fujian Medical University between June 2014 and May 2017, were retrospectively collected...
February 1, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30803857/evaluation-of-cd8-and-natural-killer-cells-defense-in-oral-and-oropharyngeal-squamous-cell-carcinoma
#19
Edilmar Moura Santos, Felipe Rodrigues de Matos, Everton Freitas de Morais, Hébel Cavalcanti Galvão, Roseana de Almeida Freitas
PURPOSE: The aim of this study was to evaluate the population of CD8+ and natural killer (NK) cells in samples of oral (OSCC) and oropharyngeal (OPSCC) squamous cell carcinoma. PATIENTS AND METHODS: Fifty-four cases squamous cell carcinoma (42 OSCC and 12 OPSCC) were immunohistochemically treated by CD8 and CD57 monoclonal antibodies. It was evaluated the relationship of CD8+ and NK cells with tumor size, lymph node metastasis (LNM), clinical staging (CS), overall survival (OS) and disease-free survival (DFS)...
February 1, 2019: Journal of Cranio-maxillo-facial Surgery
https://read.qxmd.com/read/30803856/longitudinal-evaluation-of-the-effects-of-low-power-laser-phototherapy-on-mandibular-movements-pain-and-edema-after-orthognathic-surgery
#20
Ricardo Pimenta D'ávila, Lilian Victoria P Espinola, Patricia M de Freitas, Alessandro C Silva, Constantin Landes, João Gualberto C Luz
The aim of this study was to longitudinally evaluate mandibular movements, pain, and edema in patients who underwent low-power laser (LPL) phototherapy after bimaxillary orthognathic surgery. A double-blind, randomized, controlled clinical trial was conducted using 30 patients, who were divided into a study group (n = 15) and control group (n = 15). The former group received postoperative LPL (3 J/cm2 , 808 nm, and 100 mW) and the latter group received placebo LPL phototherapy. Over a period of 60 days, these groups were evaluated for: mandibular movements - opening, laterality, and protrusion; pain - visual analogue scale; and edema - measured between cephalometric points...
February 1, 2019: Journal of Cranio-maxillo-facial Surgery
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