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Open bite

Edna Perez, Linda S Behar-Horenstein, Marcio Guelmann
Children with intellectual and physical disabilities including autism are susceptible to dental trauma as a sequela from falls due to poor muscular coordination. In addition, their altered muscle tonus often results in an open bite with labial flaring of the maxillary incisors and lip incompetence, predisposing these teeth to fractures. This case report describes an alternative approach of restoring a fractured maxillary permanent central incisor with a composite strip crown during surgical repositioning of the periodontium on an autistic patient...
September 1, 2016: Journal of Contemporary Dental Practice
Fabiana Bt Alves, Denise S Wambier, Jenny Ha Alvarez, José Cf da Rocha, Thais R Kummer, Vanessa C de Castro, Howard Cabral, Vitoldo A Kozlowski
INTRODUCTION: This study evaluated the expression of nonnutritive sucking habits and the presence of malocclusion in children using day nurseries' facilities. MATERIALS AND METHODS: The 195 children (7-40 months) attending 18 public day nurseries were evaluated clinically in Ponta Grossa, Brazil. Statistical package software was used for descriptive, univariate, bivariate, and multiple logistic regressions of the data about the socioeconomic condition, educational family status, malocclusions, and prevalence of nonnutritive sucking habits among the children...
September 1, 2016: Journal of Contemporary Dental Practice
Gaetano Isola, Luca Ramaglia, Giancarlo Cordasco, Alessandra Lucchese, Luca Fiorillo, Giovanni Matarese
BACKGROUND: Patients affected by Juvenile Idiopathic Arthritis (JIA) may have several craniofacial growth disturbances and involvements at the temporomandibular joint (TMJ). The objectives of the present study were to evaluate the clinical effectiveness of functional therapy used to reduce asymmetry of mandibular growth and TMJ disorder in patients with JIA. METHODS: By a retrospective longitudinal design, a cohort of 54 patients with JIA (mean age, 13.2 ± 3.7 years; range, 5-17...
September 13, 2016: Minerva Stomatologica
Luis Ernesto Arriola-Guillén, Aron Aliaga-Del Castillo, Carlos Flores-Mir
BACKGROUND: The aim of this study was to determine the effect of the maxillary posterior dentoalveolar discrepancy (MPDD) on the angulation of maxillary molars in open bite subjects. METHODS: Pre-treatment lateral cephalograms of 90 young adults with skeletal open bite were examined. The sample initially included six groups categorized according to MPDD condition (present or absent) and sagittal skeletal facial growth patterns (classes I, II, or III). Then, the sample was separated into two groups according to MPDD (present = 50, absent = 40)...
December 2016: Progress in Orthodontics
Luciana Freitas Gomes E Silva, Erika Bárbara Abreu Fonseca Thomaz, Heloiza Viana Freitas, Alex Luiz Pozzobon Pereira, Cecília Cláudia Costa Ribeiro, Cláudia Maria Coelho Alves
The objective of this study was to evaluate the impact of malocclusion on the quality of life (QOL) of adolescents in Brazil. We carried out a cross-sectional study in a sample population of 1015 schoolchildren aged 12 to 15 years from São Luís, Maranhão, Brazil. The explanatory variable was malocclusion, evaluated on the basis of the normative need or the adolescent's self-perceived need for dental treatment. Normative need for dental treatment was determined by professional diagnosis, made on the basis of Angle's classification, the Dental Aesthetic Index, and other morphological deviations (e...
2016: PloS One
Pravinkumar S Marure, Raju Umaji Patil, Sumitra Reddy, Amit Prakash, Nillachandra Kshetrimayum, Rajeevkumar Shukla
BACKGROUND: A common strategy to correct Class II malocclusions using a nonextraction protocol in children is to move the maxillary molars distally using molar distalization appliances, which usually derive their anchorage from maxillary premolars, causing mesialization of premolars and protrusion of incisors. OBJECTIVES: To evaluate the skeletal, dental and soft tissue changes produced by three different distalizing appliances, namely, pendulum, K-loop, and distal jet appliances...
October 2016: Journal of the Indian Society of Pedodontics and Preventive Dentistry
Jeffrey C Posnick, Jorge Perez, Anish Chavda
PURPOSE: The purpose of this study was to assess for the maintenance of a corrected occlusion and ongoing mandibular growth in a group of patients younger than 26 years with hemimandibular elongation (HME) who underwent bimaxillary orthognathic reconstruction. MATERIALS AND METHODS: We conducted a retrospective cohort study of HME patients operated on by a single surgeon at 1 institution between 1999 and 2013. At a minimum, all patients underwent Le Fort I and bilateral sagittal ramus osteotomies...
August 24, 2016: Journal of Oral and Maxillofacial Surgery
Hiroshi Abe, Toshiro Katsuta, Koichi Miki, Toshio Higashi, Tooru Inoue
BACKGROUND: Superficial temporal artery (STA) to middle cerebral artery (MCA) bypass is one of the most common surgical procedures performed for direct extracranial (EC) to intracranial (IC) bypasses. We describe a temporary steno-occlusive change in the STA that was caused by mouth opening after the STA-MCA bypass (so-called big bite ischemic phenomenon) in an adult patient with moyamoya disease. The aim of this study was to assess the incidence of this phenomenon in patients with atherosclerosis...
2016: Acta Neurochirurgica. Supplement
Bradley J Main, Yoosook Lee, Heather M Ferguson, Katharina S Kreppel, Anicet Kihonda, Nicodem J Govella, Travis C Collier, Anthony J Cornel, Eleazar Eskin, Eun Yong Kang, Catelyn C Nieman, Allison M Weakley, Gregory C Lanzaro
Malaria transmission is dependent on the propensity of Anopheles mosquitoes to bite humans (anthropophily) instead of other dead end hosts. Recent increases in the usage of Long Lasting Insecticide Treated Nets (LLINs) in Africa have been associated with reductions in highly anthropophilic and endophilic vectors such as Anopheles gambiae s.s., leaving species with a broader host range, such as Anopheles arabiensis, as the most prominent remaining source of transmission in many settings. An. arabiensis appears to be more of a generalist in terms of its host choice and resting behavior, which may be due to phenotypic plasticity and/or segregating allelic variation...
September 2016: PLoS Genetics
Stephan Lautenschlager, Florian Witzmann, Ingmar Werneburg
Temnospondyls were the morphologically and taxonomically most diverse group of early tetrapods with a near-global distribution during the Palaeozoic and Mesozoic. Members of this group occupied a range of different habitats (aquatic, amphibious, terrestrial), reflected by large morphological disparity of the cranium throughout their evolutionary history. A diagnostic feature of temnospondyls is the presence of an open palate with large interpterygoid vacuities, in contrast to the closed palate of most other early tetrapods and their fish-like relatives...
October 2016: Die Naturwissenschaften
Arthur J Nowak, Amy S Kim, Jo Anna M Scott, Joel H Berg
PURPOSES: Pacifiers are the most common device used by children to satisfy their sucking needs. Because of their design, reports of anterior open bite and increased overjet are common. The purposes of this pilot study were to measure the effects of a unique pacifier in toddlers who have existing open bites and increased overjets; and secondly to determine the feasibility of recruiting and retaining toddlers for a six-month study. METHODS: Toddlers with existing open bite and increased overjet currently using a conventional pacifier were recruited from a university pediatric dental clinic...
2016: Journal of Dentistry for Children
Jayne M Gardiner, Jelle Atema, Robert E Hueter, Philip J Motta
The ability of predators to modulate prey capture in response to the size, location, and behavior of prey is critical to successful feeding on a variety of prey types. Modulating in response to changes in sensory information may be critical to successful foraging in a variety of environments. Three shark species with different feeding morphologies and behaviors were filmed using high-speed videography while capturing live prey: the ram-feeding blacktip shark, the ram-biting bonnethead, and the suction-feeding nurse shark...
August 25, 2016: Zoology: Analysis of Complex Systems, ZACS
Lucia Pisani, Laura Bonaccorso, Rosamaria Fastuca, Raffaele Spena, Luca Lombardo, Alberto Caprioglio
BACKGROUND: The treatment options for the early treatment of anterior open bite are still controversial. The aim of this study was to evaluate the actual available evidence on treatments of anterior open bite in the mixed dentition in order to assess the effectiveness of the early treatment in reducing open bite, the most efficacious treatment strategy and the stability of the results. MATERIALS AND METHODS: A literature survey was done on November 15, 2015, by means of appropriate Medical Subject Headings (MeSH) using the following databases: PubMed, EMBASE, Cochrane Library, LILACS, VHL, and WEB OF SCIENCE...
December 2016: Progress in Orthodontics
Franco Carlino, Giuseppe Pantaleo, Fabio Ciuffolo, Pier Paolo Claudio, Antonio Cortese
INTRODUCTION: A surgical technique to widen the mandible is the mandibular midline distraction: the most common indications for mandibular midline distraction are severe mandibular anterior crowding, severe mandibular transverse deficiency, uni- or bilateral crossbite, impacted anterior teeth with inadequate space, and tipped teeth. Commonly used distraction devices can be divided into 2 systems: bone-borne distraction system appliance, dental-borne distraction systems. Each system has peculiar advantages, disadvantages, and different indications...
September 2016: Journal of Craniofacial Surgery
Thiago Slaviero, Thais Maria Freire Fernandes, Paula Vanessa Pedron Oltramari-Navarro, Ana Claudia de Castro Ferreira Conti, Marcelo Lupion Poleti, Marcio Rodrigues de Almeida
OBJECTIVE: To evaluate the dimensional changes of dental arches on digital models of open bite treatment with fixed and removable palatal cribs. MATERIALS AND METHODS: The sample comprised 41 patients of both sexes who were white, aged 7-10 years, and who had mixed dentition, Angle Class I molar relationship, and a negative overbite of at least 1 mm. The sample was randomly divided into two groups: G1, fixed palatal crib; and G2, removable palatal crib. Cast models, obtained initially (T1) and after 1 year of treatment (T2), were scanned by a three-dimensional (3D) scanner, 3Shape R700, producing a 3D image...
September 6, 2016: Angle Orthodontist
Zhifei Zhou, Fen Liu, Shuning Shen, Linjuan Shang, Lei Shang, Xiaojing Wang
BACKGROUND: This study aimed to investigate the prevalence and associated factors of malocclusion among children with primary dentition in Xi'an, China. METHODS: A total of 2,974 subjects were selected from local schools in Xi'an city using a stratified cluster sampling method from January to September 2015. After screening samples according to the inclusion criteria, the final sample size comprised 2,235 pre-school children, with a mean age of 4.82 (SD, 1.76; range, 2...
2016: BMC Oral Health
Oluranti Olatokunbo daCosta, Elfleda Angelina Aikins, Gerald Ikenna Isiekwe, Virginia Efunyemi Adediran
INTRODUCTION: The aims of this study were to establish the prevalence of dental features that indicate a need for early intervention and to ascertain the prevalence of different methods of early treatment among a population of Nigerian children in mixed dentition. METHODS: Occlusal relationships were evaluated in 101 children in mixed dentition between the ages of 6 and 12 years who presented at the Orthodontic Unit, Department of Child Dental Health, Lagos University Teaching Hospital over a 2 years period...
July 2016: Journal of Orthodontic Science
M Constant, R Nicot, J-M Maes, G Raoul, J Ferri
INTRODUCTION: Septic arthritis are serious infections rarely observed for the temporomandibular joint. They are mainly hematogenous or transmitted by contiguity. OBSERVATION: Our patient presents the case of an infection of the temporomandibular joint by maxillary sinusitis of dental origin further complicated by cerebral abscess and empyema. Initial treatment consisted of an endonasal and intraoral drainage, intravenous empirical antibiotic therapy, a close clinicoradiological monitoring, and rehabilitation following a long-term active physiotherapy...
September 2016: Revue de Stomatologie, de Chirurgie Maxillo-faciale et de Chirurgie Orale
K Kurabe, T Kojima, Y Kato, I Saito, T Kobayashi
The purpose of this study was to clarify the impact of orthognathic surgery on oral health-related quality of life (OHRQOL) in patients with jaw deformities. The subjects were 65 patients (21 males and 44 females) who underwent orthognathic surgery. The mean age of the patients was 23.6 years. Forty-seven patients had skeletal class III malocclusions, eight patients had skeletal class II, and 10 patients had skeletal class I with facial asymmetry and/or open bite. OHRQOL was assessed using the Japanese version of the Oral Health Impact Profile (OHIP-J54) before and 6 months after surgery...
August 2, 2016: International Journal of Oral and Maxillofacial Surgery
Mihee Hong, Yoon-Ah Kook, Myeng-Ki Kim, Jae-Il Lee, Hong-Gee Kim, Seung-Hak Baek
OBJECTIVE: Given the considerable disagreement between the Peer Assessment Rating (PAR) index and the American Board of Orthodontics Cast-Radiograph Evaluation, we aimed to develop a novel assessment system-the Improvement and Completion of Outcome (ICO) index-to evaluate the outcome of orthodontic treatment. METHODS: Sixteen criteria from 4 major categories were established to represent the pretreatment malocclusion status, as well as the degree of improvement and level of completion of outcome during/after treatment: dental relationship (arch length discrepancy, irregularity, U1-SN, and IMPA); anteroposterior relationship (overjet, right and left molar position, ANB); vertical relationship (anterior overbite, anterior open-bite, lateral open-bite, SN-MP); and transverse relationship (dental midline discrepancy, chin point deviation, posterior cross-bite, occlusal plane cant)...
July 2016: Korean Journal of Orthodontics
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