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Journal of Cranio-maxillo-facial Surgery

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https://www.readbyqxmd.com/read/28431806/gender-specific-evaluation-of-variation-of-maxillary-exposure-when-smiling
#1
Niels Christian Pausch, Dimitrios Katsoulis
INTRODUCTION: Excessive exposure of maxillary teeth when smiling can have a negative effect on the aesthetics and attractiveness of the face. The presented study was aimed to evaluate the effect of different amounts of gingival exposure on the perception of such human characteristics and qualities as age, attractiveness, gender specificity, and felt sympathy in the context of the whole face. MATERIALS AND METHODS: Forty-two participants (21 female and 21 male students of Dental Medicine) were recruited as evaluators for the study...
March 27, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28431807/rhabdomyosarcoma-of-the-maxillofacial-region-in-children-and-adolescents-report-of-9-cases-and-literature-review
#2
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/28427835/maxillofacial-growth-and-speech-outcome-after-one-stage-or-two-stage-palatoplasty-in-unilateral-cleft-lip-and-palate-a-systematic-review
#3
Rajgopal R Reddy, Srinivas Gosla Reddy, Anitha Vaidhyanathan, Stefaan J Bergé, Anne Marie Kuijpers-Jagtman
BACKGROUND: The number of surgical procedures to repair a cleft palate may play a role in the outcome for maxillofacial growth and speech. The aim of this systematic review was to investigate the relationship between the number of surgical procedures performed to repair the cleft palate and maxillofacial growth, speech and fistula formation in non-syndromic patients with unilateral cleft lip and palate. MATERIAL AND METHODS: An electronic search was performed in PubMed/old MEDLINE, the Cochrane Library, EMBASE, Scopus and CINAHL databases for publications between 1960 and December 2015...
March 22, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28433518/efficacy-of-tranexamic-acid-on-side-effects-of-rhinoplasty-a%C3%A2-randomized-double-blind-study
#4
Mohammad Ali Ghavimi, Koroush Taheri Talesh, Arezoo Ghoreishizadeh, Mir Amir Chavoshzadeh, Ali Zarandi
INTRODUCTION: The aim of this randomized double-blind study was to evaluate the efficacy of Tranexamic acid (TXA) on intraoperative bleeding, postoperative eyelid edema, and postoperative periorbital ecchymosis in rhinoplasty. MATERIALS AND METHODS: Sixty rhinoplasty patients who needed hump reduction and lateral osteotomy were included and then randomly assigned into two groups. In the intervention group (n = 30), 10 mg/kg of TXA was administered prior to the operation and in the control group, the patients were given 20 mL of normal saline...
March 21, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28381371/condylar-geometry-variation-is-associated-with-enpp1-variant-in-a-population-of-patients-with-dento-facial-deformities
#5
Marion Constant, Romain Nicot, Alexandre R Vieira, Gwenael Raoul, James J Sciote, Joel Ferri
PURPOSE: Bone remodeling is essential in maintaining bone health. Considering that ENPP1 contributes to bone geometry and bone mineralization, the aim of our study was to analyze the association between single-nucleotide polymorphisms (SNPs) of ENPP1 and condylar remodeling. MATERIALS AND METHODS: A total of 156 patients undergoing orthodontic and maxillofacial surgery treatment for correction of malocclusion were included in this prospective study. Saliva samples from all subjects were used for DNA extraction and genotyping...
March 8, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28381372/investigation-of-the-speech-results-of-posterior-pharyngeal-wall-augmentation-with-fat-grafting-for-treatment-of-velopharyngeal-insufficiency
#6
Çağla Dinsever Eliküçük, Maviş Emel Kulak Kayıkcı, Fatma Esen Aydınlı, Mert Çalış, Fatma Figen Özgür, Mehtap Öztürk, Rıza Önder Günaydın
PURPOSE: The purpose of this study was to evaluate the speech results of posterior pharyngeal wall augmentation (PPWA) with fat grafting both in the early and late postoperative period, and to clarify the impact of the procedure concomitant with speech therapy. MATERIALS AND METHODS: This is a prospective case-control study. The study involved 87 cleft palate ± cleft lip patients with velopharyngeal insufficiency (VPI) who has been treated with PPWA. Patients were separated into two groups according to age; the first group consisted of 49 pediatric participants between 6 and 12 years of age and the second group consisted of 38 adolescent participants between 13 and 18 years of age...
March 6, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28381373/the-use-of-patient-specific-implants-in-orthognathic-surgery-a-series-of-30-mandible-sagittal-split-osteotomy-patients
#7
Juho Suojanen, Junnu Leikola, Patricia Stoor
PURPOSE: Virtual surgery combined with patient-specific saw and drill guides and osteosynthesis materials are rapidly spreading from reconstructive surgery to orthognathic surgery. Most commercial partners are already providing computer-aided design and computer-aided manufacture (CAD/CAM) wafers and patient-specific saw guides. Clear benefits have been demonstrated for custom-made drill guides combined with individually designed three-dimensional (3D) printed patient-specific implants (PSI) as a reposition and fixation system in Le Fort I osteotomy...
March 3, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28389105/force-measurements-during-posterior-calvarial-vault-osteodistraction-a-novel-measurement-method
#8
A Ritvanen, M Savolainen, D Nowinski, D Saiepour, M Paulasto-Kröckel, J Hukki, E Tukiainen, J Leikola
Posterior calvarial vault osteodistraction (PCVO) has become increasingly popular in the correction of craniosynostosis. When compared to cranioplasty, PCVO offers a shorter, less invasive operation, greater intracranial volume advancement and a lower rate of relapse. In general, distraction protocols are based primarily on clinical observations rather than systematic research. Faster distraction protocols may reduce complications. However, distraction protocols producing higher forces can increase complications...
March 2, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28365078/macrophage-and-osteoclast-polarization-in-bisphosphonate-associated-necrosis-and-osteoradionecrosis
#9
Falk Wehrhan, Patrick Moebius, Kerstin Amann, Jutta Ries, Raimund Preidl, Friedrich W Neukam, Manuel Weber
PURPOSE: Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a complication of antiresorptive therapy with nitrogen-containing bisphosphonates (BP). With various suggestions as to pathogenesis, the etiology of BRONJ is not sufficiently understood. Osteoclasts and their precursors, that is, macrophages, are the main target cells of BP. BP can repolarize regeneration- and healing-associated M2 macrophages towards the tissue destructive M1-type. The current study aims to elucidate differences in macrophage and osteoclast polarization in BRONJ, osteoradionecrosis (ORN) and healthy control specimens...
March 1, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28359633/the-role-of-perineural-invasion-in-treatment-decisions-for-oral-cancer-patients-a-review-of-the-literature
#10
Ioannis Chatzistefanou, Joshua Lubek, Konstantinos Markou, Robert A Ord
PURPOSE: The role of perineural invasion (PNI) in the management of patients with oral squamous cell carcinoma (OSSC) is still controversial, and there is no consensus regarding the most appropriate therapeutic approach. The purpose of this study is to review the findings in the literature describing OSCC as a neurotropic malignancy, with the aim of correlating perineural invasion with treatment decisions and disease prognosis. MATERIALS AND METHODS: A literature search was conducted of references based on the MEDLINE and Cochrane Database of Systematic Reviews, with subject keywords including four main categories: perineural invasion, perineural spread, oral squamous cell cancinoma, neurotropic carcinoma...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28344027/differences-in-interpalpebral-fissure-measurement-in-patients-with-unilateral-enophthalmos-resulting-from-orbital-wall-fractures
#11
Eung Suk Lee, Jung Woo Han, Hye Sun Choi, Jae Woo Jang, Sung Joo Kim, Sun Young Jang
PURPOSE: To determine the correlation between the degree of enophthalmos and interpalpebral fissure (IPF) measurements in a group of patients with unilateral orbital wall fractures. MATERIALS AND METHODS: The medical charts of 45 patients diagnosed with unilateral enophthalmos resulting from an orbital wall fracture were reviewed. Demographic characteristics were investigated, including patient age, sex, medical history, and type of orbital wall fracture. The correlation between the degree of enophthalmos and IPF was determined, adjusting for confounding demographic factors...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28344026/the-impact-of-various-scaffold-components-on-vascularized-bone-constructs
#12
Ahmad Eweida, Matthias Schulte, Oliver Frisch, Ulrich Kneser, Leila Harhaus
Bone tissue engineering is gaining more interest in the field of craniofacial surgery where continuous efforts are being made to improve the outcomes via modulation of the scaffold components. In an in vitro three dimensional (3D) culture, the effect of bone morphogenic protein 2 (BMP2, 60 μg/ml) and the effect of different cell seeding densities (0.25, 0.5, and 1 × 104) of rat mesenchymal stem cells seeded on nanocrystalline hydroxyapatite in silica gel matrix (Nanobone(®)) on the cell viability and differentiation were studied...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28341537/interleukin-6-expression-in-disc-derangement-of-human-temporomandibular-joint-and-association-with-osteoarthrosis
#13
Flavio de Alcântara Camejo, Marina Azevedo, Viviane Ambros, Karina São Thiago Caporal, Andrea Duarte Doetzer, Luis Eduardo Almeida, Marcia Olandoski, Lucia Noronha, Paula Cristina Trevilatto
The inflammatory process is a coordinated response that protects host after infection or trauma, involving several molecular reactions. Once the inflammation is closely linked to the process of destruction of the temporomandibular joint, this study aims to examine, by immunohistochemistry, the expression of interleukin-6 (IL-6), an important inflammatory marker, in temporomandibular articular discs of patients with anterior disc displacement with (ADDwR) and without reduction (ADDwoR) and its association with osteoarthrosis (OA)...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28336322/a-novel-semi-automatic-segmentation-protocol-for-volumetric-assessment-of-alveolar-cleft-grafting-procedures
#14
Nard G Janssen, Ruud Schreurs, Gerhard K P Bittermann, Wilfred A Borstlap, Ronald Koole, Gert J Meijer, Thomas J J Maal
A novel protocol for volumetric assessment of alveolar cleft grafting procedures is presented. Eleven cone-beam computed tomography (CBCT) datasets of patients who underwent secondary alveolar cleft reconstructive surgery for a unilateral alveolar cleft were evaluated by two investigators. Residual bone volumes 1 year after surgery were analysed using a semi-automated technique in which preoperative CBCT datasets were superimposed on the postoperative scans using voxel-based registration. To define the correct boundaries of the alveolar cleft defect in the preoperative CBCT dataset, a mirror image of the preoperative CBCT dataset was superimposed on the preoperative CBCT dataset...
February 24, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28365079/a-lateral-cephalometry-study-of-patients-with-neurofibromatosis-type-1
#15
Reinhard E Friedrich, Jan-Marten Lehmann, Jonathan Rother, Georg Christ, Christine Zu Eulenburg, Hannah T Scheuer, Hanna A Scheuer
PURPOSE: Neurofibromatosis type 1 (NF1) is an autosomal dominant transmitted tumour suppressor syndrome and also a bone disease. Osseous dysplasia affecting the craniofacial region is characteristic of NF1. The aim of this study was to analyse the lateral cephalograms of NF1 patients in comparison to individuals who were not affected by this condition in order to describe the skeletal phenotype of NF1 in more detail. MATERIALS AND METHODS: The study comprises the lateral cephalograms of 172 patients with established NF1 diagnoses (female = 85, male = 87)...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28363503/the-impact-of-the-fabrication-method-on-the-three-dimensional-accuracy-of-an-implant-surgery-template
#16
Ragai-Edward Matta, Bastian Bergauer, Werner Adler, Manfred Wichmann, Hans-Joachim Nickenig
PURPOSE: The use of a surgical template is a well-established method in advanced implantology. In addition to conventional fabrication, computer-aided design and computer-aided manufacturing (CAD/CAM) work-flow provides an opportunity to engineer implant drilling templates via a three-dimensional printer. In order to transfer the virtual planning to the oral situation, a highly accurate surgical guide is needed. The aim of this study was to evaluate the impact of the fabrication method on the three-dimensional accuracy...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28344028/fracture-patterns-after-bilateral-sagittal-split-osteotomy-of-the-mandibular-ramus-according-to-the-obwegeser-dal-pont-and-hunsuck-epker-modifications
#17
Stephan Christian Möhlhenrich, Kristian Kniha, Florian Peters, Nassim Ayoub, Evgeny Goloborodko, Frank Hölzle, Ulrike Fritz, Ali Modabber
The aim of this study was to compare the fracture patterns after sagittal split osteotomy according to Obwegeser/Dal Pont (ODP) and Hunsuck/Epker (HE), as well as to investigate the relationship between lateral bone cut ending or angle and the incidence of unfavorable/bad splits. Postoperative cone-beam computed tomograms of 124 splits according to ODP and 60 according to HE were analyzed. ODP led to 75.8% and HE led to 60% lingual fractures with mandibular foramen contact. Horizontal fractures were found in 9...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28336321/the-histological-and-histomorphometric-changes-in-the-mandible-after-radiotherapy-an-animal-model
#18
Lucas J Poort, Johan H B Ludlage, Nienke Lie, Roland A Böckmann, Jim C E Odekerken, Frank J Hoebers, Peter A W H Kessler
PURPOSE: Approximately 5% of irradiated head and neck cancer patients develop osteoradionecrosis of the mandible. The current non-surgical treatment options for osteoradionecrosis have limited effects and are based on a small number of studies. Therefore, we aimed to enhance the understanding of the pathophysiology of osteoradionecrosis by investigating changes induced by external irradiation in mini-pigs. METHODS: Sixteen Göttingen mini-pigs were divided into four groups for the application in two fractions with total equivalent radiation dosages of 25, 50, 70 Gray, and one group served as control...
February 20, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318927/classical-versus-custom-orbital-wall-reconstruction-selected-factors-regarding-surgery-and-hospitalization
#19
Rafał Zieliński, Marta Malińska, Marcin Kozakiewicz
PURPOSE: Nowadays, in orbital wall reconstruction, maxillofacial surgeons have the possibility to treat patients in modern ways such as with individual implants. Nevertheless, conventional treatment including standard titanium mesh shaped during the surgical procedure is also widely used. The aim of this study was to compare the above methods of orbital wall reconstructions. MATERIALS AND METHODS: In the first group (39 cases), patients were treated by means of computer-aided design/computer-aided manufacturing (CAD/CAM) milled individual implants made of ultra-high-molecular-weight polyethylene, dioxide zirconium and rapid prototyping titanium mesh pre-bent on an ABS model made by a three-dimensional (3D) printer...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28318924/aged-rats-under-zoledronic-acid-therapy-and-oral-surgery
#20
Mariza Akemi Matsumoto, Elisa Mara de Abreu Furquim, Alaíde Gonçalves, Joel Ferreira Santiago-Júnior, Patrícia Pinto Saraiva, Camila Lopes Cardoso, Marcelo Salles Munerato, Roberta Okamoto
INTRODUCTION: Aging brings a number of health conditions that can compromise the healing process in elderly individuals, significantly when it comes to bone tissue. The aim of the present study was to analyze the effects of zoledronic acid (ZL) therapy on socket healing of aged male rats. MATERIALS AND METHODS: Twenty-four Wistar male rats, 20 months old, underwent surgical procedures for the extraction of the upper right incisor and were divided into two groups according to the treatment: Control (C) - intravenous (IV) 0...
February 17, 2017: Journal of Cranio-maxillo-facial Surgery
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