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https://www.readbyqxmd.com/read/28199931/a-personalized-3d-printed-prosthetic-joint-replacement-for-the-human-temporomandibular-joint-from-implant-design-to-implantation
#1
David C Ackland, Dale Robinson, Michael Redhead, Peter Vee Sin Lee, Adrian Moskaljuk, George Dimitroulis
Personalized prosthetic joint replacements have important applications in cases of complex bone and joint conditions where the shape and size of off-the-shelf components may not be adequate. The objective of this study was to design, test and fabricate a personalized 3D-printed prosthesis for a patient requiring total joint replacement surgery of the temporomandibular joint (TMJ). The new 'Melbourne' prosthetic TMJ design featured a condylar component sized specifically to the patient and fixation screw positions that avoid potential intra-operative damage to the mandibular nerve...
February 6, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28173824/reducing-biting-rates-of-aedes-aegypti-with-metofluthrin-investigations-in-time-and-space
#2
Jonathan M Darbro, M Odwell Muzari, Arthur Giblin, Rebecca M Adamczyk, Scott A Ritchie, Gregor J Devine
BACKGROUND: Indoor residual spraying is key to dengue control in Cairns and other parts of northern Queensland, Australia, where Aedes aegypti is prevalent, but the strategy faces challenges with regards to slow application time and, therefore, community coverage. A faster potential improvement might be the use of polyethylene netting impregnated with the volatile pyrethroid metofluthrin (SumiOne™). This formulation was assessed in rooms in three houses in Cairns, Australia. One emanator was placed in each room and cages of 10 female Aedes aegypti were exposed at distances of 1 and 3 m...
February 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28138054/bites-by-the-monocled-cobra-naja-kaouthia-in-chittagong-division-bangladesh-epidemiology-clinical-features-of-envenoming-and-management-of-70-identified-cases
#3
M A Faiz, M F Ahsan, A Ghose, M R Rahman, R Amin, M Hossain, M N Tareq, M A Jalil, U Kuch, R D G Theakston, D A Warrell, J B Harris
We describe 70 cases of monocled cobra (Naja kaouthia) bite admitted to Chittagong Medical College Hospital, Bangladesh. The biting snakes were identified by examining the dead snake and/or detecting N. kaouthia venom antigens in patients' serum. Bites were most common in the early morning and evening during the monsoon (May-July). Ligatures were routinely applied to the bitten limb before admission. Thirty-seven patients consulted traditional healers, most of whom made incisions around the bite site. Fifty-eight patients experienced severe neurotoxicity and most suffered swelling and pain of the bitten limb...
January 30, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28127538/cone-beam-computed-tomography-for-the-assessment-of-root-crown-ratios-of-the-maxillary-and-mandibular-incisors-in-a-korean-population
#4
Sung-Hwan Choi, Jung-Suk Kim, Cheol-Soon Kim, Hyung-Seog Yu, Chung-Ju Hwang
OBJECTIVE: This retrospective, cross-sectional study aimed to establish reference data for normal crown and root lengths and the root-crown ratios (R/C ratios) for the mature maxillary and mandibular incisors in a Korean population by using cone-beam computed tomography (CBCT). METHODS: We included 672 Korean patients (141 men and 531 women; mean age, 27.2 ± 7.7 years) who underwent CBCT examinations during various dental treatments. Crown and root lengths and the R/C ratios of the maxillary and mandibular incisors were measured using CBCT data, which were analyzed to detect significant differences between demographic factors as well as sagittal and vertical skeletal or occlusal relationships...
January 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28125146/severe-angle-class-iii-skeletal-malocclusion-associated-to-mandibular-prognathism-orthodontic-surgical-treatment
#5
Marcelo Quiroga Souki
The present case report describes the orthodontic treatment of a young adult patient (18y / 1m), Class III skeletal malocclusion, with mandibular prognathism and significant dental compensation. The canine relation was Class III, incisors with tendency to crossbite and open bite, moderate inferior crowding, and concave profile. Skeletal correction of malocclusion, facial profile harmony with satisfactory labial relationship, correction of tooth compensation and normal occlusal relationship were obtained with orthodontic treatment associated to orthognathic surgery...
November 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28107135/recognition-intervention-and-management-of-digit-sucking-a-clinical-guide-for-the-general-dental-practitioner
#6
Ohsun Kwon, Paras Jiteshkumar Haria, Sheena Kotecha
Digit sucking is a common habit in young children, which if allowed to continue for a prolonged period, can adversely affect the development of the face and dental occlusion. Patients with digit sucking habits often present with an increased overjet, reduced overbite, anterior open bite, posterior crossbite and possible skeletal changes which can be challenging and costly to correct if the habit is not ceased in a timely manner. This article aims to provide guidance for general dental practitioners to recognise and appropriately manage patients with a digit sucking habit...
November 1, 2016: Primary Dental Journal
https://www.readbyqxmd.com/read/28106331/a-randomized-controlled-trial-of-fresh-frozen-plasma-for-coagulopathy-in-russell-s-viper-daboia-russelii-envenoming
#7
G K Isbister, S Jayamanne, F Mohamed, A H Dawson, K Maduwage, I Gawarammana, D G Lalloo, H J de Silva, F E Scorgie, L F Lincz, N A Buckley
: Essentials Russell's viper envenoming is a major health issue in South Asia and causes coagulopathy. We studied the effect of fresh frozen plasma and two antivenom doses on correcting coagulopathy. Fresh frozen plasma did not hasten recovery of coagulopathy. Low-dose antivenom did not worsen coagulopathy. SUMMARY: Background Russell's viper (Daboia russelii) envenoming is a major health issue in South Asia and causes venom-induced consumption coagulopathy (VICC)...
January 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28098589/can-mandibular-condylar-mobility-sonography-measurements-predict-difficult-laryngoscopy
#8
Weidong Yao, Yumei Zhou, Bin Wang, Tao Yu, Zhongbing Shen, Hao Wu, Xiaoju Jin, Yuanhai Li
BACKGROUND: Limited mandibular condylar mobility plays an important role in difficult laryngoscopy. Indirect assessment methods, such as mouth opening, have been proven to be useful predictors of difficult laryngoscopy. Sonography is a new direct assessment method for the limited mandibular condylar mobility. However, whether this method could be used in predicting difficult laryngoscopy still remains unknown. This study aimed to observe its ability to predict difficult laryngoscopy. METHODS: Adult patients who were administered tracheal intubations for elective surgery under general anesthesia were enrolled in the study...
March 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28060091/midface-distraction-osteogenesis-using-a-modified-external-device-with-elastic-distraction-for-crouzon-syndrome
#9
Haizhou Tong, Lei Liu, Xiaojun Tang, Tao Song, Ningbei Yin, Zhiyong Zhang, Zhenmin Zhao
PURPOSE: Midface distraction osteogenesis has been popularized for the correction of midface hypoplasia associated with exophthalmos and obstructive sleep apnea in patients with Crouzon syndrome. The purpose of this study was to present the method of utilizing the modified external device with elastic distraction for the midface advancement in Crouzon syndrome, and the clinical outcomes and skeletal changes were analyzed. METHODS: Five consecutive patients with Crouzon syndrome underwent Le Fort III osteotomy with midface advancement using a modified external device with elastic distraction...
January 5, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28045812/miniplate-with-a-bendable-c-tube-head-allows-the-clinician-to-alter-biomechanical-advantage-in-extremely-complicated-anatomic-structure
#10
Kyung Won Seo, Nur Serife Iskenderoglu, Eui Hwan Hwang, Kyu-Rhim Chung, Seong-Hun Kim
BACKGROUNDS: This article reports C-tube miniplates as a practical temporary anchorage device choice to treat open bite patients with maxillary sinus pneumatization. METHODS: The C-tube components are titanium anchor plates and monocortical screws that are basically similar to any other miniplate systems, but it has the unique characteristic of the tube head to be malleable. The manipulation of the head part is easy due to the composition of pure titanium. The I-shaped C-tube with 3 holes and T-shaped C-tube miniplates were placed above the apices of maxillary molars as an absolute anchorage system to intrude the posterior maxilla...
December 30, 2016: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28045318/non-nutritive-sucking-habits-and-their-effects-on-the-occlusion-in-the-deciduous-dentition-in-children
#11
G M Lopes Freire, J E Espasa Suarez de Deza, I C Rodrigues da Silva, L Butini Oliveira, J M Ustrell Torrent, J R Boj Quesada
AIM: The study evaluated the presence of non-nutritive sucking habits and and their effects on the occlusion in the deciduos dentition in Spanish children. MATERIALS AND METHODS: Study design: Cross-sectional survey. A clinical examination was performed by an experienced examiner in 275 children aged 3 to 6 years and the collected data included the presence of anterior open bite (vertical dimension), unilateral or bilateral posterior crossbite (transverse dimensions), midline deviation and sagittal relationships between incisors, molars and canines...
December 2016: European Journal of Paediatric Dentistry: Official Journal of European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/28042256/are-temporary-anchorage-devices-truly-effective-in-the-treatment-of-skeletal-open-bites
#12
Hakan Turkkahraman, Mehmet Sarioglu
OBJECTIVE: The aims of this study were to evaluate the effects of temporary anchorage devices (TADs) in the treatment of skeletal open bites and to compare the results with untreated controls. MATERIALS AND METHODS: A total of forty patients with skeletal anterior open bites were assigned to two groups of twenty each. The mean chronological age for the treatment group (14 female, 6 male) was 16.68 ± 2.80 years old, compared with 16.63 ± 2.83 years old for the control group (11 female, 9 male)...
October 2016: European Journal of Dentistry
https://www.readbyqxmd.com/read/27998007/mandibular-movements-and-bite-force-in-alzheimer-s-disease-before-and-after-new-denture-insertion
#13
C H Campos, G R Ribeiro, F Stella, R C M Rodrigues Garcia
Chewing impairment has been observed in elders with Alzheimer's disease (AD); however, it is unknown whether oral rehabilitation can improve their masticatory function. This study evaluated the influence of new removable prostheses on chewing function of patients with AD. Participants using removable dentures were divided into two groups: patients with mild AD (77·2 ± 5·8 years, n = 16) and controls (76·0 ± 4·4, n = 16). All participants received general dental treatment and new total and/or partial removable prostheses...
March 2017: Journal of Oral Rehabilitation
https://www.readbyqxmd.com/read/27987514/-effects-of-breast-feeding-duration-bottle-feeding-duration-and-oral-habits-on-the-occlusal-characteristics-of-primary-dentition
#14
X X Chen, B Xia, L H Ge, J W Yuan
OBJECTIVE: To assess the effects of breast-feeding duration, bottle-feeding duration and oral habits on the occlusal characteristics of primary dentition in 3-6-year-old children in Beijing. METHODS: This cross sectional study was conducted via an examination of the occlusal characteristics of 734 children combined with a questionnaire completed by their parents/guardians. The examination was performed by a single, previously calibrated examiner and the following variables were evaluated: presence or absence of deep overbite, open bite, anterior cross bite, posterior cross bite, deep overjet, terminal plane relationship of the second primary molar, primary canine relationship, crowding and spacing...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27978915/-features-of-facioscapulohumeral-muscular-dystrophy-in-oral-and-maxillofacial-region-and-mri-analysis-of-facial-muscles
#15
Y H Liu, Y X Ma, J Hu, G D Gao, Y K Wu, Z Y Zhang
Objective: To investigate the manifestation of facioscapulohumeral muscular dystrophy (FSHD) in oral and maxillofacial region. Methods: A total of 12 patients diagnosed as FSHD and 20 healthy volunteers were included in the study. Their medical history was collected from these patients. The decayed missing filled teeth (DMFT), calculus index-simplified (CI-S), occlusal relationship, maximal opening of mouth and maximum bite force were recorded. The impressions were taken to measure the maximal hight of palate and the width of palate...
December 9, 2016: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/27957267/psycho-social-impact-of-orthogathic-sugery
#16
Paolo Cariati, Rocío Martínez, Ildefonso Martínez-Lara
BACKGROUND: Orthognathic surgery is a branch of maxillofacial surgery. It carries out the treatment of the facial skeleton asymmetries and deformities. The patients who ask for this surgery are often young people who usually refer symptoms related to dental malocclusion, difficulty eating and temporo-mandibular pain. These physical symptoms are often accompanied by psychological symptoms triggered by their physical appearance such as low self-esteem, self-confidence and negativism about their social and emotional future...
December 2016: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/27938659/-the-long-face-syndrome
#17
Federico Hernández-Alfaro
INTRODUCTION: Since the beginning of cephalometric analysis, a significant number of approaches to vertical facial proportions have been proposed. In our view, diagnosing a vertical problem has nothing to do with numbers or measurements. It's all about perceptions and - rather subjective - impressions. An "impression" of long face may be provoked by the following causes isolated or combined: vertical maxillary hyperplasia, open bite, anterior vertical mandibular hyperplasia, narrow face, lack of chin-neck definition...
December 2016: L' Orthodontie Française
https://www.readbyqxmd.com/read/27938658/-etiology-and-treatment-options-of-anterior-open-bite-in-growing-patients-a-narrative-review
#18
Alberto Caprioglio, Rosamaria Fastuca
INTRODUCTION: Anterior open bite represents a malocclusion that is still under study because of the still lacking evidence about etiology and best treatment options in growing subjects according to success rate and stability. Etiology involves the interaction of environmental factors such as prolonged sucking habits, mouth breathing, tongue or lip thrusting, tongue dimension, eruption disturbances with a genetically determined vertical facial growth pattern. The treatment options for the early treatment of anterior open bite are still controversial...
December 2016: L' Orthodontie Française
https://www.readbyqxmd.com/read/27938657/-retaining-corrected-skeletal-open-bites-how-can-we-increase-the-stability-of-our-results
#19
Simon J Littlewood
INTRODUCTION: Retaining corrected skeletal anterior open bites is challenging. If it is possible to identify the aetiological factors causing an open bite, an appropriate choice of treatment and retention may reduce relapse. Extruding anterior teeth to close anterior open bites is known to be unstable, so treatment is typically aimed at controlling the vertical position of maxillary molars, in addition to removing causative factors, such as breaking habits and improving tongue posture...
December 2016: L' Orthodontie Française
https://www.readbyqxmd.com/read/27903804/structural-protein-vp2-of-african-horse-sickness-virus-is-not-essential-for-virus-replication-in-vitro
#20
René G P van Gennip, Sandra G P van de Water, Christiaan A Potgieter, Piet A van Rijn
: The Reoviridae family consists of nonenveloped multilayered viruses with a double-stranded RNA genome consisting of 9 to 12 genome segments. The Orbivirus genus of the Reoviridae family contains African horse sickness virus (AHSV), bluetongue virus, and epizootic hemorrhagic disease virus, which cause notifiable diseases and are spread by biting Culicoides species. Here, we used reverse genetics for AHSV to study the role of outer capsid protein VP2, encoded by genome segment 2 (Seg-2)...
February 15, 2017: Journal of Virology
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