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Los deportes de combate conllevan un alto riesgo de padecer traumatismos dentoalveolares. Este estudio se evaluó la incidencia de traumatismos y lesiones orofaciales relacionadas con los deportes de combate, junto con la evaluación de las actitudes y hábitos de los deportistas respecto al uso de protectores bucales. Este estudio se realizó mediante sistema de encuestas digitales distribuidas en diferentes clubes deportivos donde se practican deportes de combate y no combate. Los deportistas de combate tienen más probabilidad sufrir alguna lesión orofacial que los no deportistas de combate. El sexo masculino y la experiencia son factores predisponentes en la aparición de traumatismos y lesiones orofaciales, siendo las laceraciones de tejidos blandos las más frecuentes. Los deportistas de combate llevan más protectores bucales que los deportistas en general, siendo el protector tipo II el más usado. Los deportistas que no llevan protectores no consideran que sea necesario. En caso de sufrir una avulsión dental, la mayoría de los participantes consideran que es posible reimplantar un diente avulsionado.

Combat sports carry a high risk of suffering dentoalveolar trauma. This study evaluated the incidence of dentoalveolar lesions related to combat sports, together with the evaluation of athletes' attitudes and habits regarding the use of mouth guards. This study was carried out using a digital survey system distributed in different sports clubs where combat and non-combat sports are practiced. Combat athletes are more likely to suffer a dentoalveolar lesion than non-combat athletes. Male sex and experience are predisposing factors in the appearance of dentoalveolar lesions, with soft tissue lacerations being the most frequent. Combat athletes wear more mouth guards than athletes in general, with the type II protector being the most used. Athletes who do not wear protectors do not consider it necessary. In case of suffering a dental avulsion, most of the participants consider that it is possible to reimplant an avulsed tooth.

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BACKGROUND/AIM: Contamination of ethylene vinyl acetate (EVA) during mouthguard fabrication can cause delamination. The study evaluated the effects of different EVA surface treatments on the contact angle, laminate bond strength, and elongation capacity. MATERIALS AND METHODS: Specimens of two bonded EVA plates were prepared (n = 30). The Shore A hardness of standardized EVA plate specimens was measured before and after thermo-plasticization. The EVA plates were randomly allocated to one of five different surface treatment groups: no treatment (control); isopropyl alcohol, 100%; chloroform, 99.8%; self-cure acrylic resin monomer (methacrylate, ethylene glycol dimethacrylate, and chemical initiator-amine type); and ethyl alcohol, 70%. The maximum breaking force and elongation at the site of fracture were recorded using a universal testing machine. The contact angle surface was measured using ImageJ software. Scanning electron microscopy of the EVA surface was performed. The laminate bond strength was obtained by dividing the maximum breaking force by the bonding area between the two EVA plates. The laminate bond strength and maximum elongation data were analyzed by one-way ANOVA, followed by the Tukey's and the Dunnet test. The failure mode data was analyzed using the chi-square test (α = .05). RESULTS: EVA surface treatment significantly influenced the laminate bond strength and maximum elongation (p < .001). The control group had a higher contact angle and significantly lower laminate bond strength and maximum elongation than the other groups (p < .001). The acrylic resin monomer and chloroform-treated specimens had similar laminate bond strength and maximum elongation. The acrylic resin monomer group had a significantly lower contact angle (p < .001). CONCLUSIONS: All treatments had a significantly higher laminate bond strength and maximum elongation than the control group. The acrylic resin monomer and chloroform groups had a significantly higher laminate bond strength and maximum elongation and the acrylic resin monomer group had a lower contact angle than the other groups. The chloroform should be avoided due its hazardous effects.

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BACKGROUND/AIM: Dentoalveolar trauma has a high incidence in different age groups, including the extremes, children, and older people. Mouth aging leads to some changes, one of them being the pulp volume reduction. The aim of this study was to evaluate the influence of different pulp cavity volumes and the impact direction on the stress and strain distribution of a maxillary central incisor. MATERIAL AND METHODS: Twenty cone beam computed tomography sets of images were selected and the pulp cavity volume was measured by ITK-SNAP software. The mean pulp cavity volume for age group of 10- to 12-year-olds was calculated to obtain the largest one. Subsequent reductions (25%, 50%, 75% and 100%) in the pulp volume values were made to simulate the aging process. The maxilla anterior segment was modeled in the Rhinoceros 5.0 software. The three-dimensional volumetric mesh was generated using the Patran software (MSC. Software), with isoparametrics, 4-noded tetrahedral elements, and exported to Marc/Mentat (MSC. Software) as element number 134. A non-linear dynamic impact analysis was performed in which a steel ball reached the central incisor at a speed of 5 m/s in the horizontal or vertical direction. The stresses were evaluated by modified von Mises stresses. The strains and the total displacement were also recorded. RESULTS: The pulp volume mean value for the age group of 10- to 12-year-olds was 65.05 mm3 . Stress concentrations were slightly different for the different pulp volumes. Impact directions resulted in different stress distribution. Higher stress values were present with the horizontal impact (range between 25.18 MPa and 24.08 MPa for enamel and 38.89 MPa and 37.03 for dentin) when compared to vertical impact (range between 15.30 MPa and 14.58 for enamel and 24.77 to 22.03 MPa for dentin). Total displacement was different for the two impact directions and higher for the horizontal impact. CONCLUSION: Pulp volume did not significantly affect the stress, strain, and total displacement during the impact but the impact direction did affect the evaluated parameters during impact.

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El trauma maxilofacial es un problema de salud pública, comúnmente asociado a traumatismo dentoalveolar. Su prevalencia es alta, siendo más frecuente en poblaciones de riesgo, como personal de Fuerzas Armadas, esto por sus actividades laborales, generando gran impacto en el paciente. Caracterizar, según la literatura, el traumatismo dentoalveolar concomitante a trauma maxilofacial en el personal profesional de Fuerzas Armadas. Se realizó una revisión narrativa en cuatro bases de datos, en octubre del 2020. Se incluyeron publicaciones de máximo 5 años de antigüedad, en inglés o español, con resumen disponible, estudios primarios y revisiones sistemáticas. Se excluyó publicaciones no disponibles en texto completo y reportes de casos. Se incluyeron 15 artículos. Existe un déficit de evidencia sobre la asociación que existe entre traumatismo dentoalveolar y traumatismo maxilofacial en la población estudiada. Encontrándose que solo el 6,7 % de estos incluía en su análisis la concomitancia entre ambos tipos de traumas. Sin embargo, los diagnósticos más prevalentes consistieron en fracturas coronarias y mandibulares, respectivamente, asociadas a actividades de entrenamiento y combate. Se establece que el tipo de trauma maxilofacial más frecuente en la población profesional de Fuerzas Armadas es la fractura mandibular y en relación al traumatismo dentoalveolar, la fractura coronaria. En cuanto a la etiología, destacan las heridas de bala, explosivos y accidentes en vehículos, afectando principalmente a personal del Ejército entre 18 a 30 años. Es importante mencionar que los artículos incluidos en esta revisión que hacen referencia a la concomitancia entre el traumatismo dentoalveolar y maxilofacial son escasos y no se encuentran actualizados, por lo que, se necesita continuar investigando en esta temática.

The maxillofacial injuries are a public health issue commonly associated to dentoalveolar injuries. Its high prevalence in risk population such as the Armed Forces personnel, due to their work activities, generates a great impact on the patient. Characterize, according to the literature, dentoalveolar injuries within the maxillofacial injuries in professional Armed Forces personnel. A narrative research was conducted on October 2020 with four data bases. Only 5-year-old publications were considered both in English and Spanish, including their available summary, primary studies and systematic revisions. Publications without full access or report cases were not included. Fifteen scientific papers were included. There is a deficit of evidence between maxillofacial and dentoalveolar injuries in the target population. Only 6.7 % of the research included a joint analysis between both traumas, however the most prevalent diagnosis consisted in coronaries and mandibular fractures, in that order, associated mainly to training and combat activities. The most frequent maxillofacial injury within the Armed Forces personnel is the mandibular fracture, and in relation with dentoalveolar injuries is the coronary fracture. Regarding the etiology, gunshot wounds, explosives and car accidents are featured affecting mainly between 18 to 30 years old army personnel. It's relevant to highlight that the scientific papers included in this revision about the association between dentoalveolar and maxillofacial injuries are poor and not updated. Further research is needed in this issue.

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RESUMEN Se presentó el caso de una paciente femenina de 9 años con historia de traumatismo a nivel de incisivos centrales superiores, por lo cual recibió tratamiento para apicoformación con hidróxido de calcio durante un periodo prolongado, que luego de realizarle la obturación de los conductos radiculares presentó un cuadro de inflamación aguda en labio superior y vestíbulo bucal. El tratamiento incluyó terapia antimicrobiana, desbridamiento quirúrgico amplio bajo anestesia general, apicectomía de ambos incisivos, obturación a visión directa de los conductos y sellado apical de los dientes con gutapercha. El diagnóstico anatomopatológico fue el de osteomielitis crónica agudizada del maxilar. Año y medio después se observó ausencia clínica de signos inflamatorios y adecuada cicatrización del tejido óseo. Se concluyó que, aunque los reportes de osteomielitis crónica del hueso maxilar son escasos, debe estar presente dentro del diagnóstico diferencial cuando se evalúan pacientes en edad pediátrica con historia de traumatismo dentoalveolar y procesos inflamatorios en la región maxilofacial.

ABSTRACT A nine-year old female patient presented with a history of trauma to the upper central incisors. She received treatment for apicoforming with calcium hydroxide for a prolonged period, who after root canal obturation presented acute inflammation of the upper lip and buccal vestibule. Treatment included antimicrobial therapy, extensive surgical debridement under general anesthesia, apicoectomy of both incisors, and direct visual obturation of the canals and apical sealing of the teeth with gutta-percha. The anatomopathologic diagnosis was acute chronic osteomyelitis of the maxilla. One and a half years later, clinical absence of inflammatory signs and adequate healing of the bone tissue were observed. It was concluded that, although reports concerning chronic osteomyelitis of the maxillary bone are rare events, this type of infection should be always present at the time of the differential diagnosis for evaluating pediatric patients with a history of dentoalveolar trauma and inflammatory processes in the maxillofacial region.

RESUMO Apresentamos o caso de uma paciente feminina de 9 anos de idade com histórico de trauma nos incisivos centrais superiores, para a qual ela recebeu tratamento para apicoformação com hidróxido de cálcio por um período prolongado, que após a obturação do canal radicular apresentou inflamação aguda do lábio superior e vestíbulo vestibular. O tratamento incluiu terapia antimicrobiana, desbridamento cirúrgico extensivo sob anestesia geral, apicoectomia de ambos os incisivos, obturação visual direta dos canais e vedação apical dos dentes com guta-percha. O diagnóstico patológico foi uma osteomielite crônica aguda da maxila. Um ano e meio depois, houve uma ausência clínica de sinais inflamatórios e uma cicatrização adequada do tecido ósseo. Concluiu-se que, embora os relatos de osteomielite crônica do osso maxilar sejam escassos, ela deveria estar presente no diagnóstico diferencial ao avaliar pacientes pediátricos com histórico de trauma dentoalveolar e processos inflamatórios na região maxilofacial.

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BACKGROUND/AIM: The use of custom-fitted mouthguards can effectively prevent dentoalveolar trauma during sports practice. The aims of this study were to (1) Evaluate the elastic modulus of different EVA commercial brands used for custom-fitted mouthguards, and (2) Evaluate whether the different EVA brands can influence the stress and strain generated during an impact simulated by three-dimensional finite element analysis. METHODS: The elastic modulus of five EVA commercial brands (Essence® , Bio-Art® , Proform® , PolyShok® , and Erkodent® ) were calculated through uniaxial tensile tests. The obtained values were evaluated statistically by Kruskal-Wallis and Dunn's test. A three-dimensional model of the anterior maxilla was created using the Rhinoceros 5.0. A 3 mm custom-fitted mouthguard was simulated. The three-dimensional volumetric mesh was generated using the Patran software (MSC.Software) with isoparametrics, 4-noded tetrahedral elements, and exported to Marc/Mentat (MSC.Software) as element number 134. A non-linear dynamic impact analysis was performed in which a rigid object struck the central incisor at a speed of 5 m/s. The stresses were evaluated by the modified von Mises criteria, and the strains were also recorded. RESULTS: Statistically significant differences were observed for elastic modulus values (p < .001). Median values and the results of the Dunn's test were Essence® (38.1 A), Bio-Art® (34.9 AB), Proform® (20.8 BC), PolyShok® (17.4 CD), and Erkodent® (15.0 D) (different capital letters mean statistical differences among the groups). Stresses and strains generated in the model with mouthguards were significantly lower than the model without a mouthguard regardless of the commercial brand. There was no significant difference in the stress and strain on the enamel and dentin with the different EVA brands. The shock absorption ability was high for all the brands (more than 80%). CONCLUSION: The custom-fitted mouthguards, independently of the commercial brand, reduced stresses and strains during the impact.

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ABSTRACT Objective: This article aims to discuss the multidisciplinary approach required in the treatment of cases of impaction and ankylosis of permanent teeth, associated with a history of trauma, considering the psychological state of the child and family when faced with a traumatic case of bullying, by reporting the complex treatment of a central incisor needing to be orthodontically moved across the midline. Conclusion: This clinical case was a major challenge, which included complex multidisciplinary procedures. Results and stability after 26 months of retention indicated successful orthodontic space closure of two maxillary teeth, without the use of implants or prostheses, in an adolescent patient who had a history of dental trauma, alveolar bone loss, and an uncertain initial prognosis.

RESUMO Objetivo: O presente artigo tem como objetivo discutir a abordagem multidisciplinar necessária no tratamento de casos de impacção e anquilose de dentes permanentes, associados a histórico de trauma, considerando o estado psicológico da criança e da família diante de situações traumáticas de bullying, por meio do relato do tratamento complexo de um incisivo central que precisava ser movido ortodonticamente através da linha média. Conclusão: Esse caso foi um grande desafio, que incluiu procedimentos multidisciplinares complexos. Os resultados e a estabilidade após 26 meses de contenção indicaram fechamento ortodôntico bem-sucedido do espaço de dois dentes superiores, sem o uso de implantes ou próteses, em uma paciente adolescente que apresentava histórico de trauma dentário, perda de osso alveolar e prognóstico inicial incerto.

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RESUMEN El trauma dentoalveolar es considerado la segunda causa de urgencias odontológicas, sien los niños y adolescentes los más afectados. La etiología está relacionada a la edad; en niños preescolares, las caídas son una causa muy común de lesiones traumáticas dentales, mientras que en los niños de edad escolar, las lesiones son más frecuentes por actividades deportivas. Suelen suceder en entornos académicos como la escuela, donde el docente es el principal sujeto a quien acuden para la atención preliminar de este tipo de eventos. Por tales argumentos son importantes los conocimientos y actitudes que posean los docentes, debido a que dichas acciones determinarán el pronóstico y tratamiento, más aun, por la relación existente entre el tiempo transcurrido y las acciones realizadas por parte del profesional odontológico. El objetivo de esta revisión sistemática fue describir la existencia de conocimientos y actitudes de docentes de primaria y secundaria sobre el manejo del trauma dentoalveolar; en la cual N=9 publicaciones cumplieron con los criterios de elegibilidad, empleando las bases de datos Pubmed, Scielo y Clinical Keys y descriptores en idioma inglés y español. Se evidencia que existe conocimiento inadecuado, mientras que la actitud del docente frente al trauma dental en la mayoría de los estudios no fue evaluada.

ABSTRACT Dentoalveolar trauma is considered the second cause of dental emergencies, with children and adolescents being the most affected. The etiology is related to age: in preschool children, falls are a very common cause of traumatic dental injuries, while in school-age children, injuries are more frequent from sports activities. Dental falls usually happen in academic environments such as school, where the teacher is the main subject to whom ones go for the preliminary attention of this type of event. For such reasons, the knowledge and attitudes possessed by teachers are important, because their actions will determine the prognosis and treatment, especially due to the relationship between the time elapsed and the actions carried out by the dental professional. The objective of this systematic review was to describe the existence of knowledge and attitudes of primary and secondary school teachers on the management of dentoalveolar trauma. In the revision we evidence N = 9 publications met the eligibility criteria, using the Pubmed databases, Scielo and Clinical Keys and descriptors in English and Spanish. It is evident that there is inadequate knowledge, while the teacher's attitude towards dental trauma in most of the studies was not evaluated.

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RESUMEN Se presentó el caso de un niño de 8 años que acudió al Servicio de Estomatología del Policlínico Universitario "Chiqui Gómez Lubián", de Santa Clara, provincia Villa Clara. En el mismo se observó avulsión del incisivo central superior derecho, fractura no complicada de la corona en incisivo central superior izquierdo y una marcada vestibuloversión. Se confeccionó un aparato placa Hawley de acuerdo a las características y necesidades del paciente, con el fin de lograr la recuperación estética, mantener la longitud del arco y corregir la vestibuloversión en el mismo. El aparato permitió obtener un resultado satisfactorio, que ha influido psicológicamente en el paciente al elevar su autoestima y salud bucal.

ABSTRACT A boy of 8 years old was seen in the dental service at the Policlínico Universitario "Chiqui Gómez Lubián", in Santa Clara, Villa Clara. Examination revealed avulsion in the right upper central incisor, uncomplicated crown fracture in left upper central incisor and an improper alignment of the teeth. Taking into account patients´ characteristics and requirements, it was fabricated a Hawley´s retainer in order to achieve a better aesthetic outcome, maintain the length of the dental arch and correct the improper alignment of the teeth. The appliance has achieved a satisfactory outcome, which has had a psychological influence on the patient by improving his self-esteem and oral health.

RESUMO Foi apresentado o caso de um menino de 8 anos que veio ao Serviço de Estomatologia do Policlínico Universitario "Chiqui Gómez Lubián", em Santa Clara, província de Villa Clara. Neste, observou-se avulsão do incisivo central superior direito, fratura não complicada da coroa em incisivo central superior esquerdo e vestibuloversão acentuada. Um dispositivo de placa de Hawley foi confeccionado de acordo com as características e necessidades do paciente, a fim de se obter recuperação estética, manter o comprimento do arco e corrigir a vestibuloversão nele. O dispositivo permitiu obter um resultado satisfatório, o que influenciou psicologicamente o paciente, elevando sua autoestima e saúde bucal.

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BACKGROUND/AIM: Little is known about the effect of dental trauma and mouthguards (MG) on teeth with ceramic laminate veneers (CLV). The aim was to evaluate the influence of CLV thickness and the presence of a MG with and without antagonist tooth contact on impact stresses during dental trauma. MATERIALS AND METHODS: Twelve 2D-finite element models of a head with maxillary structures and upper incisors, six with and six without antagonist tooth, were created in three CLV conditions: sound incisor (no CLV), 0.3 mm CLV, and 1.0 mm CLV. These were evaluated with and without a 4.0-mm ethylene-vinyl acetate MG, with and without an antagonist tooth. An impact analysis was performed in which the head frontally hits a rigid surface at a speed of 1 m/s (3.6 km/h). The results were analyzed using Critical modified von Mises (MPa). The mean of the 10% highest modified von Mises stresses in each structure was collected. RESULTS: MG presence substantially reduced impact stresses in the CLV and tooth structures. The contact of the antagonist tooth promoted better stress distribution and reduced the stress levels in the traumatized tooth. Critical stress areas were found in the palatal enamel, incisal enamel, labial cervical area, and enamel under the CLV for all models without MG. In the models with MG, the stresses reduced significantly. Critical modified von Mises stress showed that sound or prepared enamel experienced more critical impact stresses than 0.3 or 1.0-mm thick CLV. CONCLUSIONS: The use of 4.0 mm EVA mouthguard reduced the impact stress levels in models with 0.3-mm CLV and 1.0-mm CLV, similar to a sound tooth. The contact of an antagonist tooth and the MG better distributed the stresses and reduced the impact stress in the traumatized tooth.

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ABSTRACT Intrusion is defined as displacement of a tooth into the alveolar bone. In this report, we presented a patient with 15 years of delayed diagnosis of maxillary teeth intrusion into the nasal cavity. A 30-year-old male presented to our clinic with nasal discharge. He had been in a traffic accident 15 years ago. Radiographic examination revealed intrusion of two anterior teeth into the nasal cavity. In patients with maxillofacial trauma, the possibility of having an accompanying dentoalveolar trauma must always be kept in mind. While a computerized tomography (CT) scan is useful in diagnosis of such traumas, it must be performed in all patients with maxillofacial trauma to avoid misdiagnosis.

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La odontología deportiva es la rama de la medicina deportiva que se ocupa de la prevención y el tratamiento de las lesiones bucodentales y las enfermedades orales asociadas al deporte y el ejercicio. Por lo que se hace necesario la intervención de profesionales de la salud bucodental para hacer evaluaciones del deportista y el deporte que practica para ver los riesgos que puede tener de desarrollar y sufrir lesiones bucodentales como traumas dentoalveolares y lesiones no cariosas. Y de este modo realizar las recomendaciones a cada paciente que practica deporte, de los elementos que deben usar como equipamiento bucodental para evitar o reducir el daño dentoalveolar (AU)

Sports dentistry is the branch of sports medicine that deals with the prevention and treatment of oral injuries and oral diseases associated with sports and exercise. Therefore it is necessary the intervention of oral health professionals to make evaluations of the athlete and the sport he practices to see the risks that may have to develop and suffer oral injuries such as dentoalveolar trauma and non-carious lesions. And in this way make the recommendations to each patient who practices sports, of the elements that should be used as oral equipment to avoid or reduce dentoalveolar damage (AU)

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BACKGROUND/AIM: Maxillary canines have a high incidence of impaction which may be associated with unexpected damage during maxillofacial trauma. The aim of this study was to evaluate how an impacted canine could influence the stress distribution in the dentoalveolar complex during a simulated impact before and after surgical removal plus the protective effect offered by a mouthguard. MATERIALS AND METHODS: Cross-sectional finite element models of the central incisor and support structures of a patient with an impacted canine in a transverse position were made using ImageJ and Marc/Mentat software. The following impact conditions were simulated: (a) incisor with impacted canine; (b) incisor with surgical socket after impacted canine extraction; and (c) incisor after bone healing. The impacts were also simulated with a 3 mm custom-fitted ethylene vinyl acetate mouthguard. A non-linear dynamic impact finite element analysis was performed in which a rigid object hit the model at 1 m/s. Maximum and minimum principal stresses as well as von Mises stresses were analyzed. RESULTS: Higher values of compressive and tensile stresses occurred on the cortical bone in the models after impacted canine extraction. The highest stress concentrations in the enamel and dentin structures were observed after bone healing. The mouthguard reduced the stress in the alveolar bone and dental structures. CONCLUSIONS: Use of mouthguards during impact reduced the compressive and tensile stresses in the alveolar bone, mainly in the fragile regions of the impacted canine or surgical socket.

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Resumen Objetivo: Evaluar el grado de conocimiento de los odontólogos generales de la red pública del distrito de Barranquilla acerca del trauma dentoalveolar. Materiales y métodos: Estudio observacional, descriptivo transversal, basado en encuestas dirigidas a 33 odontólogos generales de la Red Pública del distrito de Barranquilla, acerca del conocimiento en trauma dentoalveolar. La encuesta fue validada previamente por un equipo experto de odontólogos cirujanos y endodoncistas. La población diana estuvo conformada por 51 odontólogos de la red pública del distrito de Barranquilla. Se realizó un muestreo no aleatorio a conveniencia. Se efectuó un análisis descriptivo de los datos de la encuesta: promedio, mediana y moda, con el programa estadístico Microsoft Excel®. Resultados: Se observó que un 12.12 % (n=4) de los sujetos en estudio tiene un nivel de conocimiento malo, un 18.18 % (n=6) un nivel aceptable, mientras que solo un 9.09 % (n=3) tiene un nivel bueno. La categoría con más frecuencia fue la regular, con un 60.6 % (n=20). Conclusión: En este proyecto se observó que la mayoría de odontólogos generales que participaron fueron categorizados con el grado de conocimiento regular (60.6 %) y aceptable (18.18 %) de acuerdo con la escala de respuestas correctas del cuestionario aplicado. Un grado de conocimiento malo se presentó en un 12.12 %, mientras que solo un 9.09 % presento un grado de conocimiento bueno.

Abstract Objective: To evaluate the degree of knowledge of general dentists in the public network of the district of Barranquilla on dentoalveolar trauma. Materials and methods: Observational study, descriptive cross-sectional, based on interviews with 33 general dentists of the public network from Barranquilla, regarding dentoalveolar trauma. The survey was previously validated by an expert team of dental surgeons and endodontists. Results: It was observed a 12.12% (n=4) of the population studied had a low level of knowledge, 18.18% (n=6) an acceptable level, while only 9.09% (n=3) had a good level of knowledge. The most frequent category was "regular" with a 60.6% (n=20). Conclusion: In this project, it was observed that most general dentists who participated were categorized with a "not to standard" level of knowledge (60.6%) and acceptable (18.18%) according to the right answer scale of the applied questionnaire. A "low" level of knowledge was present on 12.12%, while only a 9.09% had a good level of knowledge.

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A avulsão dentária é um tipo de traumatismo dentoalveolar que traz grande preocupação quanto ao prognóstico do paciente. As medidas de acondicionamento de dentes avulsionados são imprescindíveis para o sucesso do tratamento. O presente artigo propõe um relato de caso de avulsão dentária abordando as principais medidas de conservação dos elementos dentários e a importância do tempo entre a avulsão e seu reimplante no alvéolo... (AU)

The tooth avulsion is a type of dentoalveolar trauma that brings great concern about the patient's prognosis. Measures of packaging of avulsed tooth are essential for a successful treatment. This article proposes a case of tooth avulsion addressing the main measures for the conservation of dental elements and the importance of time of avulsed tooth to their reimplantation in the socket... (AU)

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Los traumatismos dentoalveolares constituyen una de las principales urgencias estomatológicas. Objetivo: caracterizar el comportamiento de los traumatismos dentarios en niños deportistas del área Ciro Frías. Métodos: se realizó un estudio observacional descriptivo, de corte transversal, en deportistas menores de 19 años del área Ciro Frías, del municipio Arroyo Naranjo, La Habana, desde febrero de 2011 hasta febrero de 2012. El universo estuvo constituido por 57 niños. Se utilizó un formulario de datos creado por los autores y validado por un comité de expertos; se realizó examen bucal y facial; se vaciaron los datos y se procesaron utilizando estadística descriptiva. Las variables estudiadas fueron: edad, sexo, deporte, momento del traumatismo, dientes lesionados, localización en la arcada, tipo de trauma dentario, etiología, asistencia al estomatólogo y tratamiento. Resultados: los niños que más traumatismos dentarios presentaron fueron los de 12 a 14 años (45,6 por ciento) y el sexo más afectado fue el masculino (77,2 por ciento). Los traumas ocurrieron principalmente fuera del entrenamiento (61,4 por ciento) y el deporte con más niños afectados fue el Karate (19,3 por ciento). Los dientes más dañados fueron los incisivos centrales superiores (62,9 por ciento). La fractura no complicada de la corona (32,3 por ciento) fue la lesión más acentuada. La etiología principal de los traumas fue la práctica de deportes (36,8 por ciento). El 68,4 por ciento de los niños no recibieron tratamiento. Conclusiones: predominaron los traumas en el sexo masculino, entre 12 a 14 años, fuera del entrenamiento. El deporte con más niños afectados fue el Karate. Los dientes más lesionados fueron los incisivos centrales superiores. Los traumatismos más frecuentes fueron las fracturas no complicadas de la corona y la infractura del esmalte. Las causas de traumatismos dentarios más frecuentes fueron la práctica de deportes y las caídas. Prevalecieron los niños que no asistieron a consulta estomatológica y que no recibieron tratamiento(AU)

Dentoalveolar traumas are one of the main causes of dental emergencies. Objective: characterize the behavior of dental traumas among children from "Ciro Frías" sports area. Methods: an cross-sectional observational descriptive study was conducted with children under 19 years of age from Ciro Frías sports area in the municipality of Arroyo Naranjo, Havana, from February 2011 to February 2012. The study universe was composed of 57 children. Data collection was based on a form developed by the authors and validated by an experts committee. Oral and facial examination was performed, and the information was recorded and processed using descriptive statistics. The variables studied were age, sex, sport, time of trauma, injured teeth, location in the arcade, type of dental trauma, etiology, visit to the dentist and treatment. Results: dental traumas predominated in the 12-14 age group (45,6 percent) and the male sex (77,2 percent). Most (61,4 percent) occurred outside training sessions, and karate was the sport with most injured children (19,3 percent). Upper central incisors were the most commonly affected teeth (62,9 percent). Uncomplicated crown fracture was the most common injury (32,3 percent). Sports practice was the main etiology of traumas (36,8 percent). 68,4 percent of the children injured did not receive any treatment. Conclusions: there was a predominance of the male sex, the 12-14 age group and occurrence outside training sessions. Karate was the sport with most children injured. Upper central incisors were the most commonly affected teeth. The most common traumas were uncomplicated fractures of the crown and the enamel infrastructure. The most common causes of dental traumas were sports practice and falls. There was a predominance of children not visiting the dentist and not receiving treatment(AU)

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Introducción: el trauma dentoalveolar corresponde a una lesión traumática de alta prevalencia, elevado costo de tratamiento y efectos negativos a nivel funcional, estético y psicológico. Existen factores predisponentes de traumatismo dentoalveolar que coinciden con ciertas características de niños respiradores orales, sin embargo, el rol de la respiración oral como factor predisponente no está claramente determinado. Objetivo: determinar la asociación entre respiración oral y trauma dentoalveolar controlando por otras covariables en niños de 6 a 14 años. Métodos: se aplicó un estudio de casos y controles 1:2. La muestra quedó constituida por 57 casos y 113 controles asumiendo un nivel de confianza del 95 por ciento, una potencia del 80 por ciento y un 10 por ciento de pérdidas. Los casos correspondieron a niños de 6 a 14 años de edad ingresados por TDA a la Unidad de Odontopediatría del Hospital Dr. Sótero del Rí", centro de referencia que atiende a una población de 1 521 144 habitantes de la capital. Los controles correspondieron a niños voluntarios sin TDA del mismo centro asistencial y grupo etario. Los datos fueron recolectados a partir de una entrevista, además de la medición clínica y observación directa para determinar el modo respiratorio. Para diferencias entre grupos se aplicó prueba de Fisher y Mann Whitney. La asociación entre respiración oral y trauma dentoalveolar se evaluó a partir de un modelo logístico considerando sexo, resalte y edad. Resultados: la prevalencia de niños respiradores orales fue mayor en los casos con un 47,4 por ciento (p < 0,05), sin embargo, no se pudo establecer una asociación significativa entre respiración oral y trauma dentoalveolar (OR:1,875; IC 95 por ciento: 0,866 - 4,058; p > 0,05) como para ninguna de las covariables del modelo. Conclusiones: respirar a través de la cavidad oral no constituiría un aumento del riesgo de sufrir un trauma dentoalveolar durante un golpe o caída en los niños estudiados(AU)

Introduction: dentoalveolar trauma is a traumatic-high prevalent injury with high costs associated with treatment and adverse effects at functional, aesthetic, and psychological levels. There are some predisposing clinical features of dentoalveolar trauma that are also present in mouth-breathing children, however the role of mouth breathing as a predisposing factor is not clearly determined. Objective: this paper aims to determine the association between mouth breathing and dentoalveolar trauma in children aged 6 to 14 years, controlling other covariates. Methods: a case-control study 1:2 was conducted. The sample was composed of 57 cases and 113 controls, assuming 95 percent of confidence level, 80 percent of power, and 10 percent losses. The cases were children aged 6 to 14 years admitted at the Pediatric Dentistry Unit in Dr. Sotero del Río Hospital because of dental trauma. This hospital assists a population of 1.521.144 inhabitants from the capital city. Controls were conducted on volunteer children of the same age group without dental trauma who are treated at the same hospital. Data were collected from interviews, clinical measurement, and direct observation to determine respiratory mode. The Fisher and Mann Whitney test was applied to find differences between the groups. The association between mouth breathing and dentoalveolar trauma was assessed through a logistical model controlling gender, overjet, and age. Results: the prevalence of mouth-breathing children was higher, which represents 47, 4 percent (p < 0. 05). However, no significant association could be made between mouth breathing and dentoalveolar trauma (OR: 1.875; IC95 percent:0.866-4.058; p > 0. 05) and neither for any of the covariates in this model. Conclusions: breathing through the oral cavity does not constitute an increased risk of dentoalveolar trauma over a bump or fall in children aged 6 to 14 years(AU)

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Children and adolescents are frequently victims of oral and maxillofacial trauma. The purpose of this study was to determine the characteristics of oral and maxillofacial trauma that resulted in police records, in children and adolescents aged between 0 and 16 years during a period of 5 years. Among the 28,200 reports analyzed, 463 were included in the study. The men:women ratio observed was 1.6:1 and the most prevalent age range was between 15-16 years (44.40%). Most trauma cases resulted from physical assault (64.50%) and culminated in soft-tissue lesion (80.36%). Excoriations (28.64%) leaded as the most frequent type of lesion, and the maxillary region (22.63%) was the most common location of injury. The most common type of dental lesion was dental trauma (54.76%), and bone fractures prevailed in the nasal region (36.7%). The findings of this survey may contribute to plan and execute preventive measures as well as to guide curative measures aimed at this population group.

Crianças e adolescentes frequentemente são vítimas de trauma nas regiões oral e maxilofacial. O objetivo deste estudo foi determinar as características do trauma na região oral e maxilofacial que resultaram em registros policiais, em crianças e adolescentes na faixa etária de 0 a 16 anos, por um período de 5 anos. Dos 28.200 laudos avaliados, 463 foram incluídos na pesquisa. A taxa homem:mulher observada foi de 1,6:1 e a faixa etária de maior ocorrência foi a de 15-16 anos (44,40%). A maioria dos casos de trauma foi decorrente de agressão física (64,50%) e resultou em lesão de tecido mole (80,36%). Entre os tipos mais frequentes, destacam-se as escoriações (28,64%) e quanto à localização, a região maxilar (22,63%). O tipo de lesão dental mais comum foi trauma dental (54,76%), e as fraturas ósseas predominaram nas regiões nasal (36,7%). Os resultados encontrados podem auxiliar no planejamento e execução de medidas preventivas e direcionar medidas curativas dirigidas a este grupo populacional.

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Introducción: los traumatismos de los dientes anteriores son eventos que suceden con frecuencia, por su gran impacto social y psicológico deben ser considerados como un tema de trascendental importancia, lo cual motivó realizar el estudio. Objetivo: identificar características asociadas con las fracturas dentarias en incisivos superiores permanentes en estudiantes que asistieron al servicio estomatológico de la escuela primaria Lazo de la Vega del municipio Marianao en el año 2009. Método: Se realizó un estudio analítico, en el que se incluyeron los 235 escolares matriculados en la escuela del mismo nombre, entre 7 y 12 años de edad que asistieron a consulta. Se estudiaron las variables edad, sexo, presencia de hábitos bucales deformantes, tipo de fractura dentaria e incisivo traumatizado. Se calculó la frecuencia absoluta, el riesgo a través de la tasa por 100, el riesgo relativo (RR) a través de la razón entre riesgos y se aplicó el estadígrafo X² de Pearson para la asociación entre variables. Resultados: el grupo de edad más afectado es el de 10 a 12 años con un 23,4 por ciento, con predominio del sexo masculino dado por un RR de 2,47 veces más que el femenino. La fractura no complicada de corona aparece con mayor frecuencia con un 61,8 por ciento, el diente mayormente afectado es el incisivo central superior izquierdo con un 51,4 por ciento. La diferencia de riesgo entre los grupos de edades no son significativas, aunque en relación con el sexo las diferencias son muy significativas. Conclusiones: Hubo franco predominio de las fracturas no complicadas y de los incisivos centrales superiores, en particular el izquierdo(AU)

Introduction: traumas of front teeth are frequent events which, because of their social and psychological impact, should be considered a topic of paramount importance. This fact motivated the authors to conduct the study. Objectives: to identify the characteristics associated with dental fractures in permanent upper incisors in students who went to the Stomatology Service of Lazo de la Vega Primary School in Marianao Municipality in the year 2009. Method: an analytical study was conducted in 235 students from 7 to 12 years of age who were enrolled in the school mentioned above who presented to the consultation. The variables studied were: age, sex, presence of deforming buccal habits, type of dental fracture and traumatized incisor teeth. Absolute frequency, the rate/100 risk, and the relative risk (RR) through the ratio among risks were calculated and the Pearson's X2 statistics was applied for the association among variables. Results: the most affected age group was from 10 to 12 years with a 23.4 por ciento, predominating the male sex due to a RR 2.47 times higher than the female sex. The non complicated crown fracture was the most frequent one with a 61.8 por ciento, the most affected tooth is the left upper central incisive, with a 51.4 por ciento. The risk difference between the age groups was not significant, although in relation to the sex, the differences are highly significant. Conclusions: there was a marked predominance of the uncomplicated fractures and the upper central incisors, particularly the left ones(AU)

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AIM: To evaluate the influence of different types of mouthguard (MG) on physical performance of female soccer players. MATERIAL AND METHODS: The sample was composed of 25 female soccer players from 'Guarani Futebol Clube', age range 18-22 years. For data collection, two tests were performed: agility test (shuttle run) and aerobic capacity and VO2 (Cooper test), in addition to application of a perception questionnaire after wearing mouthguards during the tests. RESULTS: Data analysis showed that mouthguard type III presented better results in the VO2 and aerobic capacity tests (P < 0.05). In relation to difficulties experienced when wearing MGs, there were no reports of pain, discomfort, or nausea. However, 100% of athletes affirmed that it was not possible to speak with MG type I, 80% (n = 20) with type II, and no athlete found difficulty in speaking when wearing MG type III. Distractions were reported by 35% (n = 6) only when athletes wore MG types I and II. CONCLUSIONS: Among the three types evaluated, the customized MG (type III) presented better results in the athletes' physical performance evaluation, even taking into account physical tests performed without the use of mouthguards.

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