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https://www.readbyqxmd.com/read/28985106/a-comparative-study-of-the-effect-of-the-intrusion-arch-and-straight-wire-mechanics-on-incisor-root-resorption-a-randomized-controlled-trial
#1
Marcio Rodrigues de Almeida, Aline Siqueira Butzke Marçal, Thais Maria Freire Fernandes, Juliana Brito Vasconcelos, Renato Rodrigues de Almeida, Ravindra Nanda
OBJECTIVE: To analyze and compare external apical root resorption (EARR) of maxillary incisors treated by intrusion arch or continuous archwire mechanics. MATERIALS AND METHODS: This cone-beam computed tomography (CBCT) study analyzed 28 deep bite patients in the permanent dentition who were randomly divided into two groups: Group 1, 12 patients with initial mean age of 15.1 ± 1.6 years and mean overbite of 4.6 ± 1.2 mm treated with the Connecticut intrusion arch (CIA) in the upper arch (Ortho Organizers, Carlsbad, Calif) for a mean period of 5...
October 6, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28968484/orthodontic-treatment-for-deep-bite-and-retroclined-upper-front-teeth-in-children
#2
REVIEW
Declan T Millett, Susan J Cunningham, Kevin D O'Brien, Philip E Benson, Cesar M de Oliveira
BACKGROUND: A Class II division 2 malocclusion is characterised by upper front teeth that are retroclined (tilted toward the roof of the mouth) and an increased overbite (deep overbite), which can cause oral problems and may affect appearance.This problem can be corrected by the use of special dental braces (functional appliances) that move the upper front teeth forward and change the growth of the upper or lower jaws, or both. Most types of functional appliances braces are removeable and this treatment approach does not usually require extraction of any permanent teeth...
October 2, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28947798/metagenomic-based-surveillance-of-pacific-coast-tick-dermacentor-occidentalis-identifies-two-novel-bunyaviruses-and-an-emerging-human-ricksettsial-pathogen
#3
Jerome Bouquet, Michael Melgar, Andrea Swei, Eric Delwart, Robert S Lane, Charles Y Chiu
An increasing number of emerging tick-borne diseases has been reported in the United States since the 1970s. Using metagenomic next generation sequencing, we detected nucleic acid sequences from 2 novel viruses in the family Bunyaviridae and an emerging human rickettsial pathogen, Rickettsia philipii, in a population of the Pacific Coast tick, Dermacentor occidentalis in Mendocino County sampled annually from 2011 to 2014. A total of 250 adults of this human-biting, generalist tick were collected from contiguous chaparral and grassland habitats, and RNA from each individually extracted tick was deep sequenced to an average depth of 7...
September 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28942310/dental-and-temporomandibular-joint-pathology-of-the-north-american-brown-bear-ursus-arctos-horribilis-ursus-arctos-middendorffi-and-ursus-arctos-sitkensis
#4
J N Winer, B Arzi, S Döring, P H Kass, F J M Verstraete
Museum specimens (maxillae and mandibles) from 393 North American brown bears (Ursus arctos) from Alaska were examined macroscopically according to predefined criteria and 204 specimens were included in this study. The specimens were acquired between 1905 and 2012. There were 99 specimens (48.5%) from male animals, 87 (42.7%) from female animals and 18 (8.8%) from animals of unknown sex. The ages of the animals ranged from neonate to adult, with 92 adults (45.1%) and 112 young adults (54.9%) included and neonates/juveniles excluded from the study...
August 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/28938332/mandibular-condyle-reconstruction-with-fibula-free-tissue-transfer-the-role-of-the-masseter-muscle
#5
Andreas Gravvanis, Dimitrios Anterriotis, Despoina Kakagia
BACKGROUND: Free fibula flap is an option for primary restoration after disarticulation mandibular resection, though literature on technique refinements is scarce. The authors hypothesized that inset of the masseter, the key mandibular elevator muscle, at the reconstructed mandible may optimize functional recovery. METHODS: All patients undergoing reconstruction of mandibulectomy-condylectomy defect (January 2009 to January 2014) by means of a fibular flap were prospectively studied...
September 21, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28936295/dentoskeletal-modifications-in-class-ii-deep-bite-malocclusion-treatment-with-anterior-bite-plane-functional-appliance
#6
Domenico Ciavarella, Michele Laurenziello, Laura Guida, Graziano Montaruli, Crescenzio Gallo, Michele Tepedino, Lorenzo Lo Muzio
BACKGROUND: A treatment modality for Class II division 1 malocclusion is discussed. Orthodontic treatment of patients with deep bite and Class II malocclusion is an important challenge in clinical practice. The aim of this work is to compare the efficacy of anterior bite plane functional appliance (ABPFA) by assessing the changes in different times with untreated patients by literature. MATERIAL AND METHODS: The study group comprised 22 subjects with Class II division 1 malocclusion and hypo-divergent...
August 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28912979/the-protocol-of-fixed-reconstruction-for-severely-worn-teeth-combined-with-anterior-deep-bite
#7
Ya-Wen Zhao, Rong Gao, Hui-Qiang Sun
Full mouth reconstruction is one of the most effective methods to restore severe worn teeth that have suffered reduced vertical dimension. Although the use of the overlay splint restoration for a trial period allowing the patient to adapt to an increased vertical dimension is the recognized method, the specific protocol from the transitional splint to the fixed reconstruction is yet to be established. This case report describes a 50-year-old female patient who has severely worn teeth combined with an anterior deep bite and chewing pain...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28872995/eva-vacuum-formed-alternative-splinting-of-alveolar-fractures-in-primary-dentition-a-case-report
#8
Konstantina Chatzidimitriou, Nikos N Lygidakis, Nick A Lygidakis
Alveolar fractures treatment includes repositioning of displaced segments and splinting. In children, splinting procedures may occasionally present clinical problems resulting from fewer teeth available for splinting or presence of occlusal disturbances. An alternative clinical approach for splinting in alveolar fractures of primary dentition is described. CLINICAL CASE: A 4.5-year-old girl was referred to our clinic 8 hours after a fall accident. Clinical examination revealed mandibular alveolar process segmental fracture in the right canine area with frontal dislodgement of the labial cortical bone resulting to occluding inability...
2017: Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28807935/function-of-the-hypobranchial-muscles-and-hyoidiomandibular-ligament-during-suction-capture-and-bite-processing-in-white-spotted-bamboo-sharks-chiloscyllium-plagiosum
#9
Jason B Ramsay, Cheryl D Wilga
Suction feeding in teleost fish is a power dependant behavior, requiring rapid and forceful expansion of the orobranchial cavity by the hypobranchial and trunk muscles. To increase power production for expansion, many species employ in-series tendons and catch mechanisms to store and release elastic strain energy. Suction feeding sharks such as Chiloscyllium plagiosum lack large in-series tendons on the hypobranchials, yet two of the hypobranchials, the coracohyoideus and coracoarcualis (CH, CA; hyoid depressors), are arranged in-series, and run deep and parallel to a third muscle, the coracomandibularis (CM, jaw depressor)...
August 14, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28796181/associations-between-malocclusion-and-oral-health-related-quality-of-life-among-mongolian-adolescents
#10
Miyu Araki, Yuko Yasuda, Takuya Ogawa, Tsasan Tumurkhuu, Ganjargal Ganburged, Amarsaikhan Bazar, Takeo Fujiwara, Keiji Moriyama
Malocclusion may affect oral health-related quality of life (OHR-QoL), however, the previously detected associations were affected by confounding factors. We hypothesized that there is indeed an association between OHR-QoL and malocclusion and investigated in a population-based study of 420 Mongolian adolescents mean age: 12.6 (standard deviation (SD) = 1.09) years from two secondary schools, located in an urban and a suburban area. We randomly selected two classes from each school. The Index of Orthodontic Treatment Need (IOTN) was used to assess malocclusion...
August 10, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28742094/epidemiology-clinical-features-and-risk-factors-for-human-rabies-and-animal-bites-during-an-outbreak-of-rabies-in-maputo-and-matola-cities-mozambique-2014-implications-for-public-health-interventions-for-rabies-control
#11
Cristolde Salomão, Amílcar Nacima, Lutero Cuamba, Lorna Gujral, Olga Amiel, Cynthia Baltazar, Julie Cliff, Eduardo Samo Gudo
BACKGROUND: In Mozambique, the majority of rabies outbreaks are unreported and data on the epidemiological features of human rabies and animal bites are scarce. An outbreak of human rabies in adjacent Maputo and Matola cities in 2014 prompted us to investigate the epidemiology, clinical features and risk factors of human rabies and animal bites in the two cities. METHODOLOGY/PRINCIPAL FINDINGS: We reviewed cases of human rabies and animal bites from April to July 2014, and carried out a community investigation in July and August in the neighborhoods where cases of human rabies resided...
July 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28736605/minimally-invasive-orthodontics-elastodontic-therapy-in-a-growing-patient-affected-by-dentinogenesis-imperfecta
#12
Gaetano Ierardo, Valeria Luzzi, Giuliana Nardacci, Iole Vozza, Antonella Polimeni
AIM: The aim of the study was to report the use of an elastodontic therapy in a growing patient affected by Dentinogenesis Imperfecta, second class malocclusion, deep bite and lower arch crowding from the deciduous dentition to permanent one. CASE REPORT: At first, the 5-year-old patient was treated with an elastodontic device known as "Nite-Guide". When the patient was 7 years old, during her first permanent molars and incisors eruption and after optimal house-practices, an Occlus-o-Guide Series G was placed at night and on daylight (two hours a day) performing exercises aimed to activate facial muscles and facilitate the deep bite reopening...
January 2017: Annali di Stomatologia
https://www.readbyqxmd.com/read/28684060/top-10-myths-regarding-the-diagnosis-and-treatment-of-cellulitis
#13
Erin K McCreary, Melissa E Heim, Lucas T Schulz, Robert Hoffman, Jeffrey Pothof, Barry Fox
BACKGROUND: Cellulitis is commonly treated in the emergency department (ED). Patients who present with cellulitis incur significant health care costs and may be overtreated with antibiotics. The accurate diagnosis and treatment of cellulitis plays an important role in cost-effective, high-quality medical care, as well as appropriate antibiotic utilization. OBJECTIVE: We aim to describe common fallacies regarding cellulitis. We present 10 myths that result in misdiagnosis, overtreatment, or inappropriate empiric management of cellulitis...
July 3, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28648042/-effects-of-lappaconitine-on-pain-and-inflammatory-response-of-severely-burned-rats-and-the-mechanism
#14
C L Yang, Z R Wei, T H Zhang, X Q Zeng, B H Wu
Objective: To explore the effects of lappaconitine (LA) on pain and inflammatory response of severely burned rats and the mechanism. Methods: Forty SD rats were divided into healthy+ normal saline group, sham injury+ normal saline group, pure burn group, burn+ LA group, and healthy+ LA group according to the random number table (the same dividing method below), with 8 rats in each group. Rats in pure burn and burn+ LA groups were inflicted with about 32% total body surface area deep partial-thickness scald (hereinafter referred to as burn) on the back and right hind...
June 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28605885/epidemiology-of-animal-bites-and-factors-associated-with-delays-in-initiating-post-exposure-prophylaxis-for-rabies-prevention-among-animal-bite-cases-a-population-based-study
#15
Firooz Esmaeilzadeh, Abdolhalim Rajabi, Sajad Vahedi, Mohammad Shamsadiny, Mousa Ghelichi Ghojogh, Nahid Hatam
Objectives: One way to prevent deaths due to rabies is the timely utilization of post-exposure prophylaxis (PEP). Therefore, in addition to an understanding of the epidemiological distribution of animal bites, it is necessary to explore the factors leading to delays in PEP initiation. Methods: This cross-sectional study was conducted in Iran in 2011, and included 7097 cases of animal bites recorded at the Rabies Treatment Center of the Shiraz University of Medical Sciences using the census method...
2017: Journal of Preventive Medicine and Public Health, Yebang Ŭihakhoe Chi
https://www.readbyqxmd.com/read/28586692/functional-innovations-and-the-conquest-of%C3%A2-the%C3%A2-oceans-by-acanthomorph-fishes
#16
REVIEW
Peter C Wainwright, Sarah J Longo
The world's oceans are home to many fantastic creatures, including about 16,000 species of actinopterygian, or ray-finned, fishes. Notably, 85% of marine fish species come from a single actinopterygian subgroup, the acanthomorph or spiny-rayed fishes. Here, we review eight functional innovations found in marine acanthomorphs that have been instrumental in the adaptive radiation of this group in the marine realm. Jaw protrusion substantially enhances the suction feeding mechanism found in all fish. Fin spines serve as a major deterrent to predators and enhance the locomotor function of fins...
June 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28585258/masticatory-muscle-architecture-in-a-water-rat-from-australasia-murinae-hydromys-and-its-implication-for-the-evolution-of-carnivory-in-rodents
#17
P-H Fabre, A Herrel, Y Fitriana, L Meslin, L Hautier
Murines are well known for their generalist diet, but several of them display specializations towards a carnivorous diet such as the amphibious Indo-Pacific water-rats. Despite the fact that carnivory evolved repeatedly in this group, few studies have investigated associated changes in jaw muscle anatomy and biomechanics. Here, we describe the jaw muscles and cranial anatomy of a carnivorous water-rat, Hydromys chrysogaster. The architecture of the jaw musculature of six specimens captured both on Obi and Papua were studied and described using dissections...
June 6, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28579157/compound-mechanism-of-fatal-neck-injury-a-case-report-of-a-tiger-attack-in-a-zoo
#18
Łukasz Szleszkowski, Agata Thannhäuser, Tomasz Jurek
Fatal injuries caused by attacks by large wild cats are extremely rare in forensic medical practice in Europe. There are very few cases described in the forensic medical literature concerning incidents in zoos similar to the tiger attack on a 58-year-old male zoo employee that we present here. While preparing a runway for tigers, the man was attacked by a male Sumatran tiger. Another zoo employee was an eyewitness to the accident; in his testimony he described the sequence of events in detail. The autopsy showed the injuries typical of a tiger attack: traces of claws and canine teeth indicating that the victim of the attack was knocked down from behind, along with deep and extensive fatal wounds to the neck...
May 20, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28527188/optimum-pure-intrusion-of-a-mandibular-canine-with-the-segmented-arch-in-lingual-orthodontics
#19
Abhishek M Thote, Krishna Sharma, Rashmi V Uddanwadiker, Sunita Shrivastava
BACKGROUND: Approximately 50% patients with a deep bite possess anatomically extruded mandibular canines. OBJECTIVE: The objective of this study was to specify an optimum toe (Θ) of the vertical segment of a cantilever from the distal aspect to achieve pure intrusion of a mandibular canine with the segmented arch in lingual orthodontics (LiO). METHODS: The geometrical model of a mandibular canine was developed to compute the required values of Θ (positive values - toe-in, negative values - toe-out)...
2017: Bio-medical Materials and Engineering
https://www.readbyqxmd.com/read/28515206/widespread-ecomorphological-convergence-in-multiple-fish-families-spanning-the-marine-freshwater-interface
#20
Aaron M Davis, Ricardo Betancur-R
The theoretical definition and quantification of convergence is an increasingly topical focus in evolutionary research, with particular growing interest on study scales spanning deep phylogenetic divergences and broad geographical areas. While much progress has recently been made in understanding the role of convergence in driving terrestrial (e.g. anole lizards) and aquatic (e.g. cichlids) radiations, little is known about its macroevolutionary effects across environmental gradients. This study uses a suite of recently developed comparative approaches integrating diverse aspects of morphology, dietary data, habitat affiliation and phylogeny to assess convergence across several well-known tropical-temperate fish families in the percomorph suborder Terapontoidei, a clade with considerable phenotypic and ecological diversity radiating in both marine and freshwater environments...
May 17, 2017: Proceedings. Biological Sciences
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