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Head & Face Medicine

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https://www.readbyqxmd.com/read/30290762/three-dimensional-evaluation-of-soft-tissue-after-orthognathic-surgery
#1
Junho Jung, Chi-Heun Lee, Jung-Woo Lee, Byung-Joon Choi
BACKGROUND: To evaluate the nasolabial soft tissue change three-dimensionally after orthognathic surgery, using a structured light scanner. METHODS: Thirty-two malocclusion patients, who underwent orthognathic surgery, were evaluated. CBCT and 3D facial scans were obtained before surgery and 3 months after surgery. The 3D changes in the 26 landmarks, and the relative ratio of the soft tissue movement to the bony movement, were evaluated. RESULTS: In the Le Fort I advancement patients, the nasal tip moved 17% forward, compared to the maxillary bony movement, but the nasal prominence decreased 15%...
October 5, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30261897/effect-of-dach1-on-proliferation-and-invasion-of-laryngeal-squamous-cell-carcinoma
#2
Jiarui Zhang, Xiuxia Ren, Bo Wang, Jing Cao, Linli Tian, Ming Liu
BACKGROUND: To investigate the effect of DACH1 over-expression on proliferation and invasion of laryngeal squamous cell carcinoma (LSCC). METHODS: The 120 cases of LSCC tumors and 114 adjacent non-neoplastic tissues were collected to detect the expression of DACH1 by immunohistochemistry. The changes of DACH1 expression from each group were assessed and correlated to the clinical parameters of the patients. Plasmid-DACH1 was transfected into Hep-2 cells to up-regulate the expression of DACH1C...
September 27, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30257689/the-micromass-formation-potential-of-human-adipose-derived-stromal-cells-isolated-from-different-various-origins
#3
Benedikt Kleineidam, Sonja Sielker, Marcel Hanisch, Johannes Kleinheinz, Susanne Jung
BACKGROUND: Adult stem cells appear to be a promising subject for tissue engineering, representing an individual material for regeneration of aged and damaged cells. Especially adipose derived stromal cells (ADSC), which are easily to achieve, allow an encouraging perspective due to their capability of differentiating into miscellaneous cell types. Here we describe the in vitro formation of human subcutaneous, visceral and omental ADSC micromasses and compare their histological attributes while being cultivated on collagen membranes...
September 26, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30253798/the-glomus-tumor-resorbed-bone-and-teeth-in-the-mandible-a-case-report
#4
Kazuto Kurohara, Yasuyuki Michi, Akane Yukimori, Satoshi Yamaguchi
BACKGROUND: A glomus tumor is a rare neoplasm usually found in the dermis or subcutaneous tissue of the extremities. It is rare for the glomus tumor to occur on the head and face. Only 26 glomus tumors of the oral region and affected bone have been reported in the English-language literature (Table 1). We report a case of a glomus tumor at the mandible. As a new point, the glomus tumor resorbed a bone and teeth roots when the tumor progressed into the mandible. CASE PRESENTATION: The patient was a 44-year-old Japanese man who complained swelling of the right mandible...
September 25, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30249268/quality-of-occlusal-outcome-following-space-closure-in-cases-of-lower-second-premolar-aplasia-using-lingual-orthodontic-molar-mesialization-without-maxillary-counterbalancing-extraction
#5
Elisabeth Klang, Frauke Beyling, Michael Knösel, Dirk Wiechmann
BACKGROUND: Controlled space closure in cases of isolated lower second premolar aplasia (ILSPA) without maxillary counterbalancing extraction is challenging. Anterior anchorage loss may occur during space closure resulting in compromised occlusal results in terms of an absence of proper canine guidance during laterotrusive mandible movements. In order to evaluate the effectiveness of Herbst telescope anchorage in combination with double-cable, pull mechanics and a completely customized lingual appliance for orthodontic space management in cases of ILSPA, we tested the null hypothesis that there is a significant deterioration in the sagittal canine relationship towards an Angle-Class-II occlusion expressed as a loss of anterior anchorage following space closure with molar mesialization...
September 24, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30231897/surgically-assisted-rapid-maxillary-expansion-in-lingual-orthodontics-optimizing-of-coupling-and-timing-best-oral-presentation-from-the-21st-meeting-of-german-society-of-lingual-orthodontics
#6
Martina Bräutigam, Benedict Wilmes, Nour Eldin Tarraf, Dieter Drescher
BACKGROUND: Surgically assisted rapid maxillary expansion (SARME) is primarily used in adult orthodontics. In many cases it is followed by further surgery to address further anteroposterior and/or vertical discrepancies. Treatment times in such cases are often long with adult patients usually requesting invisible appliances. Lingual appliances can provide the mechanical control required as well as fulfil the aesthetic demands in such cases. However lingual appliances are usually custom made and indirectly bonded...
September 19, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30223858/tmj-pathomorphology-in-patients-with-jia-radiographic-parameters-for-early-diagnosis
#7
Daniela Klenke, Anja Quast, Martina Prelog, Annette Holl-Wieden, Maximilian Riekert, Angelika Stellzig-Eisenhauer, Philipp Meyer-Marcotty
BACKGROUND: Juvenile idiopathic arthritis (JIA) is often accompanied by pathomorphological changes to the temporomandibular joint (TMJ). By analyzing orthodontical orthopantomograms of JIA patients the aims of the study were a) classification of condyle changes, b) quantification of bony asymmetries of condylar destruction and c) detection of relationships between disease duration and TMJ-involvement. PATIENTS/METHODS: 46 caucasian JIA-patients (28 female; 18 male; < 16...
September 17, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30180903/bilateral-central-giant-cell-granuloma-of-the-mandibular-angle-in-three-females-from-the-same-family
#8
Simona Tecco, Silvia Caruso, Alessandro Nota, Pietro Leocata, Gianluca Cipollone, Roberto Gatto, Tommaso Cutilli
In literature there are few reports about multiple CGCG. But this is the first report of bilateral CGCG of the mandibular angles in three females from the same family.This report describes three cases of females from the same family - a mother and two young daughters - with bilateral CGCG in their jaw angles. All the lesions were surgically removed and the histopathologic diagnosis was always identical: giant cell central granulomas, with patterns that were absolutely superimposable between them and with that of the mother...
September 4, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30126425/the-push-out-bond-strength-of-calcium-silicate-based-endodontic-sealers
#9
David Donnermeyer, Pia Dornseifer, Edgar Schäfer, Till Dammaschke
BACKGROUND: The aim was to compare the dislodgement resistance of calcium silicate-based sealers (Total Fill BC Sealer, Endo CPM Sealer, BioRoot RCS) with an epoxy resin-based sealer (AH Plus). METHODS: The root canals of 80 single-rooted human teeth were instrumented with F360 up to size 45.04. All canals were obturated using matching gutta-percha cones according to the single-cone technique in combination with one of the mentioned sealers (n = 20 per group)...
August 20, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30115081/protective-effect-and-related-mechanisms-of-curcumin-in-rat-experimental-periodontitis
#10
Chang-Jie Xiao, Xi-Jiao Yu, Jian-Li Xie, Shuang Liu, Shu Li
BACKGROUND: Curcumin exhibits anti-inflammatory effects and has been suggested as a treatment for inflammatory diseases. The aim of this study was to investigate the effects of curcumin on the lipopolysaccharide induced inflammatory response in rat gingival fibroblasts in vitro and ligation-induced experimental periodontitis in vivo, and to speculate the possible anti-inflammatory mechanism of curcumin. METHODS: The gingival fibroblasts were incubated with different concentrations of curcumin in the absence or presence of lipopolysaccharide (LPS)...
August 16, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30075821/the-possibilities-of-a-portable-low-budget-three-dimensional-stereophotogrammetry-system-in-neonates-a-prospective-growth-analysis-and-analysis-of-accuracy
#11
Lucas M Ritschl, Maximilian Roth, Andreas M Fichter, Fabienna Mittermeier, Bettina Kuschel, Klaus-Dietrich Wolff, Florian D Grill, Denys J Loeffelbein
BACKGROUND: With the technical development, portable three-dimensional (3D) photogrammetry systems are becoming more en vogue because of cost-effectiveness and comparable accuracy to common stationary 3D systems. The purpose of the study was to evaluate the feasibility and accuracy of a low-budget portable system for 3D image acquisition with special regard to the gracile nasal region in neonates. Furthermore, the study aimed to establish a 3D data set of the first 180 days post partum...
August 3, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/30005670/orthokeratinized-odontogenic-cysts-a-spanish-tertiary-care-centre-study-based-on-hpv-dna-detection
#12
Beatriz Vera-Sirera, Luis Rubio-Martínez, Leopoldo Forner-Navarro, Francisco Vera-Sempere
BACKGROUND: The role of human papillomavirus (HPV) in orthokeratinized odontogenic cysts (OOCs) has rarely been studied. The objective is to describe the clinicopathological findings in a series of OOCs from a Spanish population that were investigated in relation to the possible presence of HPV. METHODS: A clinicopathological retrospective analysis followed by a molecular analysis of 28 high- and low-risk HPV genotypes was performed in OOC samples of patients seen during the last 15-years in a Spanish tertiary care center...
July 13, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29843756/clinical-comparison-of-liquid-based-and-conventional-cytology-of-oral-brush-biopsies-a-randomized-controlled-trial
#13
Constanze Olms, Nathalie Hix, Heinrich Neumann, Maryam Yahiaoui-Doktor, Torsten W Remmerbach
BACKGROUND: Exfoliative cytology performed on oral brush samples can help dentists to decide, whether a given oral lesion is (pre-) malignant. The use of non-invasive brush biopsies as an auxiliary tool in the diagnosis of oral mucosal lesions has gained renewed interest since improvements in cytological techniques such as the development of adjuvant diagnostic tools and liquid-based cell preparation techniques. METHODS: The aim of this study was to compare the quality of two different preparation techniques (cell collectors): the conventional transfer procedure to glass slides and the so-called liquid-based cytology preparation method...
May 29, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29728102/stenting-the-eustachian-tube-to-treat-chronic-otitis-media-a-feasibility-study-in-sheep
#14
Friederike Pohl, Robert A Schuon, Felicitas Miller, Andreas Kampmann, Eva Bültmann, Christian Hartmann, Thomas Lenarz, Gerrit Paasche
BACKGROUND: Untreated chronic otitis media severely impairs quality of life in affected individuals. Local destruction of the middle ear and subsequent loss of hearing are common sequelae, and currently available treatments provide limited relief. Therefore, the objectives of this study were to evaluate the feasibility of the insertion of a coronary stent from the nasopharynx into the Eustachian tube in-vivo in sheep and to make an initial assessment of its positional stability, tolerance by the animal, and possible tissue reactions...
May 4, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29642922/an-anterolateral-thigh-chimeric-flap-for-dynamic-facial-and-esthetic-reconstruction-after-oncological-surgery-in-the-maxillofacial-region-a-case-report
#15
Zoltán Lóderer, Tamás Vereb, Róbert Paczona, Ágnes Janovszky, József Piffkó
BACKGROUND: The surgical management of malignant tumors in the head and neck region often leads to functional and esthetic defects that impair the quality of life of the patients. Reconstruction can be solved with prostheses in these cases, but various types of microsurgical free flaps can provide a better clinical outcome. CASE PRESENTATION: In this case report, the tumor and parts of the involved facial muscles and nerve were excised surgically from a 42-year-old patient after a third relapse of basal cell carcinoma in the left midface...
April 11, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29562914/facial-soft-tissue-changes-after-nonsurgical-rapid-maxillary-expansion-a-systematic-review-and-meta-analysis
#16
REVIEW
Jing Huang, Cui-Ying Li, Jiu-Hui Jiang
BACKGROUND: The present systematic review and meta-analysis aimed to test the hypothesis that no facial soft tissue changes occur after nonsurgical rapid maxillary expansion (RME), in order to provide a reference for orthodontists. METHODS: PubMed, EMBASE, Cochrane Library, OVID, MEDLINE, CINAHL, Scopus, and ScienceDirect databases were electronically and manually searched up to December 2017, and randomized controlled, clinical controlled trials, cohort studies and retrospective studies where soft tissue changes were measured before and after nonsurgical RME were identified...
March 21, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29544499/primary-failure-of-eruption-pfe-a-systematic-review
#17
REVIEW
Marcel Hanisch, Lale Hanisch, Johannes Kleinheinz, Susanne Jung
BACKGROUND: Primary failure of eruption (PFE) is a rare disease defined as incomplete tooth eruption despite the presence of a clear eruption pathway. Orthodontic extrusion is not feasible in this case because it results in ankylosis of teeth. To the best of our knowledge, besides the study of Ahmad et al. (Eur J Orthod 28:535-540, 2006), no study has systematically analysed the clinical features of and factors associated with PFE. Therefore, the aim of this study was to systematically evaluate the current literature (from 2006 to 2017) for new insights and developments on the aetiology, diagnosis, genetics, and treatment options of PFE...
March 15, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29454369/evaluation-of-piezocision-and-laser-assisted-flapless-corticotomy-in-the-acceleration-of-canine-retraction-a-randomized-controlled-trial
#18
Alaa M H Alfawal, Mohammad Y Hajeer, Mowaffak A Ajaj, Omar Hamadah, Bassel Brad
BACKGROUND: To evaluate the effectiveness of two minimally invasive surgical procedures in the acceleration of canine retraction: piezocision and laser-assisted flapless corticotomy (LAFC). METHODS: Trial design: A single-centre randomized controlled trial with a compound design (two-arm parallel-group design and a split-mouth design for each arm). PARTICIPANTS: 36 Class II division I patients (12 males, 24 females; age range: 15 to 27 years) requiring first upper premolars extraction followed by canine retraction...
February 17, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29321071/head-circumference-a-useful-single-parameter-for-skull-volume-development-in-cranial-growth-analysis
#19
Markus Martini, Anne Klausing, Guido Lüchters, Nils Heim, Martina Messing-Jünger
BACKGROUND: The measurement of maximal head circumference is a standard procedure in the examination of childrens' cranial growth and brain development. The objective of the study was to evaluate the validity of maximal head circumference to cranial volume in the first year of life using a new method which includes ear-to-ear over the head distance and maximal cranial length measurement. METHODS: 3D surface scans for cranial volume assessment were conducted in this method comparison study of 44 healthy Caucasian children (29 male, 15 female) at the ages of 4 and 12 months...
January 10, 2018: Head & Face Medicine
https://www.readbyqxmd.com/read/29329558/quality-of-life-and-problems-associated-with-obturators-of-patients-with-maxillectomies
#20
Marwa Mohammed Ali, Nadia Khalifa, Mohammed Nasser Alhajj
BACKGROUND: Maxillary defects predispose patients to different undesirable effects. The aim of this study was to assess the quality of life (QoL) of patients with maxillary defects (acquired/congenital) wearing obturators. METHODS: The study comprised 30 patients aged between 16 and 78 years. Interviews were conducted to collect information pertaining to patients; sociodemographic, self-reported function of obturator using Obturator Functioning Scale (OFS), self-evaluation of general health using Visual Analogue Scale (VAS), radiotherapy treatment, salivary gland removal, reconstructive surgery, neck dissection and length of time obturators were worn...
January 5, 2018: Head & Face Medicine
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