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Open bite

M A Cassis, R R de Almeida, G Janson, A Aliaga-Del Castillo, M R de Almeida
OBJECTIVE: To evaluate the stability of anterior open bite (AOB) treatment with bonded spurs associated with high-pull chincup (BS/HPCC). METHODS: The experimental group consisted of 25 Class I AOB patients (15 female, 10 male) treated with BS/HPCC for 1 year. Cephalograms were analysed at pre-treatment (T1), post-treatment (T2) and at the 3-year post-treatment (T3) stage with the patients mean ages of 8.10, 9.14 and 12.18 years, respectively. The control group consisted of 23 subjects (13 female, 10 male) with normal occlusion, with comparable ages at the 3 stages (8...
March 14, 2018: Orthodontics & Craniofacial Research
Paloma T Birmann, Fernanda S S Sousa, Daniela H de Oliveira, Micaela Domingues, Beatriz M Vieira, Eder J Lenardão, Lucielli Savegnago
Several pathologies, such as pain and inflammation, are modulated by different pathways, making it necessary to develop drugs capable of modulating different pathways. Based on that, we investigated the antinociceptive and anti-inflammatory effect of 3-(4-chlorophenylselanyl)-1-methyl-1H-indole (CMI), as well as the systems involved in these actions. This study evaluated the antinociceptive and anti-inflammatory effects of CMI [0.0001-10mg/kg administered intragastrically (i.g.)] in the formalin, glutamate, hot plate, ear edema induced by croton oil and paw edema induced by formalin tests...
March 10, 2018: European Journal of Pharmacology
Sofía Pestoni, Federico Javier Degrange, Claudia Patricia Tambussi, María Manuela Demmel Ferreira, Germán Alfredo Tirao
The cranio-mandibular complex is an important structure involved in food capture and processing. Its morphology is related to the nature of the food item. Jaw muscles enable the motion of this complex and their study is essential for functional and evolutionary analysis. The present study compares available behavioral and dietary data obtained from the literature with novel results from functional morphological analyses of the cranio-mandibular complex of the Guira cuckoo (Guira guira) to understand its relationship with the zoophagous trophic habit of this species...
March 13, 2018: Journal of Morphology
Guan Yun Frances Wang, Xiang Qun Shi, Wenjia Wu, Maria Gueorguieva, Mu Yang, Ji Zhang
Temporomandibular disorder (TMD) is a set of heterogeneous musculoskeletal conditions involving the temporomandibular joint (TMJ) and/or the masticatory muscles. Up to 33% of the population has had at least one symptom of TMD with 5-10% of them requiring treatment. Common symptoms include limited jaw movement, joint sound, and pain in the orofacial area. Once TMD becomes chronic, it can be debilitating with comorbidities that greatly reduce one's overall quality of life. However, the underlying mechanism of TMD is unclear due to the multicausative nature of the disease...
March 12, 2018: Pain
Karin Michèle Schmid, Remo Kugler, Prasad Nalabothu, Carles Bosch, Carlalberta Verna
BACKGROUND: Non-nutritive sucking habits may adversely affect the orofacial complex. This systematic literature review aimed to find scientific evidence on the effect of pacifier sucking on orofacial structures. METHODS: A search on MEDLINE, EMBASE, Cochrane Central Register of Controlled Trials, and Web of Science databases was conducted to find all pertinent articles published from inception until February 2018, based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines...
March 13, 2018: Progress in Orthodontics
F N van der Weijden, R B Kuitert, F R U Berkhout, G A van der Weijden
PURPOSE: To systematically search the scientific literature concerning the influence of tooth position on wind instrumentalists' performance and embouchure comfort. METHODS: The PubMed, Cochrane, and Embase databases were searched up to November 2017. The main orthodontic journals were searched for papers older than the inception date of PubMed. Grey literature was sought via Google Scholar. Eligible studies were critically appraised and analysed. RESULTS: The searches retrieved 54 papers...
March 12, 2018: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
Dauro Douglas Oliveira, Bruno Franco de Oliveira, Carolina Morsani Mordente, Gabriela Martins Godoy, Rodrigo Villamarim Soares, Paulo Isaías Seraidarian
The purpose of this paper is to present and discuss a simple and low-cost clinical approach to correct an asymmetric skeletal Class III combined to an extensive dental open bite that significantly compromised the occlusal function and smile aesthetics of an adult male patient. The patient did not accept the idealistic surgical-orthodontic treatment option, neither the use of temporary anchorage devices to facilitate the camouflage of the asymmetrical skeletal Class III/open bite. Therefore, a very simple and inexpensive biomechanical approach using sliding jigs in the mandibular arch was implemented as the compensatory treatment of the malocclusion...
March 12, 2018: Journal of Orthodontics
T C M Brock, J D M Belgers, M-C Boerwinkel, L Jollie, M H S Kraak, M J Papo, J A Vonk, I Roessink
This paper deals with species sensitivity distributions (SSDs) for the lipophilic insecticide lufenuron and benthic arthropods based on sediment-spiked laboratory toxicity tests. This compound that inhibits chitin synthesis and moulting of arthropods persists in sediment. Using field-collected sediment, toxicity tests were conducted with three macro-crustaceans and six insects. The Hazardous Concentration to 5% of the tested species, the HC5 (and 95% confidence limit), derived from an SSD constructed with 10d-LC50's was 2...
March 6, 2018: Aquatic Toxicology
Piet A van Rijn, Mieke A Maris-Veldhuis, Christiaan A Potgieter, René G P van Gennip
African horse sickness virus (AHSV) is a virus species in the genus Orbivirus of the family Reoviridae. Currently, nine serotypes have been defined showing limited cross neutralization. AHSV is transmitted by species of Culicoides biting midges and causes African Horse Sickness (AHS) in equids with a mortality up to 95% in naïve domestic horses. AHS has become a serious threat for countries outside Africa, since endemic Culicoides species in moderate climates are competent vectors of closely related bluetongue virus...
March 7, 2018: Vaccine
Abdullah Tahir Şensoy, Irfan Kaymaz, Ümit Ertaş, Ali Kiki
PURPOSE: The purpose of this study is to suggest a patient-specific osteotomy line to optimize the distractor position and thus to minimize the disadvantages of conventional mandibular distraction osteogenesis (MDO) protocols. In addition, this study also aims to compare the conventional MDO protocols with the new MDO protocol proposed in this study in terms of both orthodontic outcomes and mechanical effects of osteotomy level on callus stabilization by means of the finite element method...
March 8, 2018: Journal of Craniofacial Surgery
Chunmiao Jiang, Yinghong Liu, Qian Cheng, Wei He, Shanbao Fang, Tingting Lan, Jun Wang
Patients with bimaxillary protrusion may have an unattractive profile with a retruded chin contour. Correction of the severely protrusive anterior alveolar bone and teeth combined with a moderate open bite without orthognathic surgery can be challenging. This case report describes the orthodontic treatment of a woman with severe bimaxillary protrusion and a moderate open bite. Excellent chin morphology and facial appearance were obtained with the extraction of 4 first premolars and 4 third molars, and total distalization of both arches with 4 mini-implants, one in each quadrant between the second premolar and the first molar...
March 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Kevin D Lafferty, John P McLaughlin, Daniel S Gruner, Taylor A Bogar, An Bui, Jasmine N Childress, Magaly Espinoza, Elizabeth S Forbes, Cora A Johnston, Maggie Klope, Ana Miller-Ter Kuile, Michelle Lee, Katherine A Plummer, David A Weber, Ronald T Young, Hillary S Young
The Asian tiger mosquito, Aedes albopictus, appears to have been extirpated from Palmyra Atoll following rat eradication. Anecdotal biting reports, collection records, and regular captures in black-light traps showed the species was present before rat eradication. Since then, there have been no biting reports and no captures over 2 years of extensive trapping (black-light and scent traps). By contrast, the southern house mosquito, Culex quinquefasciatus, was abundant before and after rat eradication. We hypothesize that mammals were a substantial and preferred blood meal for Aedes , whereas Culex feeds mostly on seabirds...
February 2018: Biology Letters
Isaie J Reuling, Lisanne A van de Schans, Luc E Coffeng, Kjerstin Lanke, Lisette Meerstein-Kessel, Wouter Graumans, Geert-Jan van Gemert, Karina Teelen, Rianne Siebelink-Stoter, Marga van de Vegte-Bolmer, Quirijn de Mast, André J van der Ven, Karen Ivinson, Cornelus C Hermsen, Sake de Vlas, John Bradley, Katharine A Collins, Christian F Ockenhouse, James McCarthy, Robert W Sauerwein, Teun Bousema
Background Malaria elimination strategies require a thorough understanding of parasite transmission from human to mosquito. A clinical model to induce gametocytes to understand their dynamics and evaluate transmission-blocking interventions (TBI) is currently unavailable. Here, we explore the use of the well-established Controlled Human Malaria Infection model (CHMI) to induce gametocyte carriage with different antimalarial drug regimens. Methods In a single centre, open-label randomised trial, healthy malaria-naive participants (aged 18-35 years) were infected with Plasmodium falciparum by bites of infected Anopheles mosquitoes (ClinicalTrials...
February 27, 2018: ELife
Carlos Flores-Mir
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Malocclusion in young children. Does breast-feeding really reduce the risk? A systematic review and meta-analysis. Doğramacı EJ, Rossi-Fedele G, Dreyer CW. J Am Dent Assoc 2017; 148(8):566-74. SOURCE OF FUNDING: Australian Government Research Training Program Scholarship TYPE OF STUDY/DESIGN: Systematic review with meta-analysis of data.
March 2018: Journal of Evidence-based Dental Practice
E Alonso-Rodriguez, E Gómez, M Martín, J-M Muñoz, J Hernández-Godoy, M Burgueño
BACKGROUND: Macroglossia causes functional deficits such as airway obstruction, drooling, phonation difficulties, and leads to protrusion of dentoalveolar structures resulting in an anterior open bite and a prognathic mandibular appearance. Macroglossia is present in the majority of patients with Beckwith-Wiedemann syndrome (BWS) and surgical treatment may be indicated. MATERIAL AND METHODS: A retrospective review was conducted including BWS patients who underwent surgical tongue reduction between 2000 and 2015 at the Hospital Universitario La Paz, Madrid...
February 24, 2018: Medicina Oral, Patología Oral y Cirugía Bucal
Erik T Frank, Marten Wehrhahn, K Eduard Linsenmair
Open wounds are a major health risk in animals, with species prone to injuries likely developing means to reduce these risks. We therefore analysed the behavioural response towards open wounds on the social and individual level in the termite group-hunting ant Megaponera analis During termite raids, some ants get injured by termite soldiers (biting off extremities), after the fight injured ants get carried back to the nest by nest-mates. We observed treatment of the injury by nest-mates inside the nest through intense allogrooming at the wound...
February 14, 2018: Proceedings. Biological Sciences
Ravi Kumar Gudipaneni, Raed F Aldahmeshi, Santosh R Patil, Mohammad Khursheed Alam
BACKGROUND: To assess the prevalence of malocclusion and orthodontic treatment need among adolescents using the dental health component (DHC) of the index of orthodontic treatment need (IOTN). METHODS: A descriptive cross-sectional study was conducted among 500 (mean age 16.25 ± 1.09) adolescents randomly selected from the northern border region of Saudi Arabia (KSA). The northern border region is sub-divided into three governorates: Ar'ar (186), Rafha (142) and Turayf (172)...
February 2, 2018: BMC Oral Health
Z Jabbour, A Al-Khateeb, H Eimar, J M Retrouvey, F H Glorieux, F Rauch, F Tamimi
OBJECTS: To investigate the relationship between genotype and severity of malocclusion in osteogenesis imperfecta (OI). SETTING AND SAMPLE POPULATION: A total of 49 patients participated in this cross-sectional study (age range: 5-19 years; 28 females; diagnoses: OI type I, N = 7; OI type III, N = 11; OI type IV, N = 27; OI type V, N = 2; OI type VI, N = 2). MATERIALS AND METHODS: Sequence analysis of COL1A1/COL1A2 and other OI-related genes was compared to the Peer Assessment Rating (PAR), an index reflecting the severity of malocclusion...
February 1, 2018: Orthodontics & Craniofacial Research
Gaurav Mittal, Anmol Aggrawal, Ritesh Garg, Siddharth Sharma, Abhishek Rathi, Vishnu Sharma
Introduction: The aim of the present study was to compare fixation of mandibular anterior fractures following open reduction using lag screws or miniplates. Materials and Methods: This prospective study was conducted on 20 patients diagnosed with cases of displaced mandibular anterior fractures treated with open reduction and internal fixation. The patients were then randomly allocated to either of two groups - Group A: two 2.5 mm stainless steel lag screws were placed in 10 patients...
July 2017: National Journal of Maxillofacial Surgery
Mst Luthfun Nesa, S M Sajedul Karim, Khairunasa Api, Md Moklesur Rahman Sarker, Md Monirul Islam, Asma Kabir, Mithun Kumar Sarker, Kamrun Nahar, Mohammad Asadujjaman, Mohammad Sirajum Munir
BACKGROUND: It has been observed that the various part of Baccaurea ramiflora plant is used in rheumatoid arthritis, cellulitis, abscesses, constipation and injuries. This plant also has anticholinergic, hypolipidemic, hypoglycemic, antiviral, antioxidant, diuretic and cytotoxic activities. The present studyaimed to assess the cytotoxic, analgesic, anti-inflammatory, CNS depressant and antidiarrheal activities of methanol extract of Baccaurea ramiflora pulp and seeds in mice model. METHODS: The cytotoxic activity was determined by brine shrimp lethality bioassay; anti-nociceptive activity was determined by acetic acid-induced writhing, formalin- induced licking and biting, and tail immersion methods...
January 30, 2018: BMC Complementary and Alternative Medicine
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