Comportamiento Mecánico de un Premolar Humano Sano Sometido a Fuerzas Funcionales y Disfuncionales en un MEF / Mechanical Behavior of a Healthy Human Premolar Subjected to Functional and Dysfunctional Forces in a FEM

El propósito de este estudio fue analizar el comportamiento mecánico de la estructura dental sana de un primer premolar inferior humano sometido a fuerzas funcionales y disfuncionales en diferentes direcciones. Se buscó comprender, bajo las variables contempladas, las zonas de concentración de esfuerzos que conllevan al daño estructural de sus constituyentes y tejidos adyacentes. Se realizó el modelo 3D de la reconstrucción de un archivo TAC de un primer premolar inferior, que incluyó esmalte, dentina, ligamento periodontal y hueso alveolar considerando tres variables: dirección, magnitud y área de la fuerza aplicada. La dirección fue dirigida en tres vectores (vertical, tangencial y horizontal) bajo cuatro magnitudes, una funcional de 35 N y tres disfuncionales de 170, 310 y 445 N, aplicadas sobre un área de la cara oclusal y/o vestibular del premolar que involucró tres contactos estabilizadores (A, B y C) y dos paradores de cierre. Los resultados obtenidos explican el fenómeno de combinar tres vectores, cuatro magnitudes y un área de aplicación de la fuerza, donde los valores de esfuerzo efectivo equivalente Von Mises muestran valores máximos a partir de los 60 MPa. Los valores de tensión máximos se localizan, bajo la carga horizontal a 170 N y en el proceso masticatorio en la zona cervical, cuando la fuerza pasa del 60 %. Sobre la base de los hallazgos de este estudio, se puede concluir que la reacción de los tejidos a fuerzas funcionales y disfuncionales varía de acuerdo con la magnitud, dirección y área de aplicación de la fuerza. Los valores de tensión resultan ser más altos bajo la aplicación de fuerzas disfuncionales tanto en magnitud como en dirección, produciendo esfuerzos tensiles significativos para la estructura dental y periodontal cervical, mientras que, bajo las cargas funcionales aplicadas en cualquier dirección, no se generan esfuerzos lesivos. Esto supone el reconocimiento del poder de detrimento estructural del diente y periodonto frente al bruxismo céntrico y excéntrico.

SUMMARY: The purpose of this study was to analyze the mechanical behavior of the healthy dental structure of a human mandibular first premolar subjected to functional and dysfunctional forces in different directions. It was sought to understand, under the contemplated variables, the areas of stress concentration that lead to structural damage of its constituents and adjacent tissues. The 3D model of the reconstruction of a CT file of a lower first premolar was made, which included enamel, dentin, periodontal ligament and alveolar bone considering three variables: direction, magnitude and area of the applied force. The direction was directed in three vectors (vertical, tangential and horizontal) under four magnitudes, one functional of 35 N and three dysfunctional of 170, 310 and 445 N, applied to an area of the occlusal and/or buccal face of the premolar that involved three stabilizing contacts (A, B and C) and two closing stops. The results obtained explain the phenomenon of combining three vectors, four magnitudes and an area of force application, where the values of effective equivalent Von Mises stress show maximum values from 60 MPa. The maximum tension values are located under the horizontal load at 170 N and in the masticatory process in the cervical area, when the force exceeds 60%. Based on the findings of this study, it can be concluded that the reaction of tissues to functional and dysfunctional forces varies according to the magnitude, direction, and area of application of the force. The stress values turn out to be higher under the application of dysfunctional forces both in magnitude and in direction, producing significant tensile stresses for the dental and cervical periodontal structure, while under functional loads applied in any direction, no damaging stresses are generated. This supposes the recognition of the power of structural detriment of the tooth and periodontium against centric and eccentric bruxism.

Envelhecimento bucal precoce e suas consequências para a cavidade oral com foco em reabilitação com resina composta: relato de caso / Early oral aging and its consequences for the oral cavity focusing on rehabilitation with composite resin: case report

O envelhecimento bucal precoce apresenta cada vez uma maior incidência nos consultórios odontológicos e sua degradação aos tecidos orais exige uma atenção por parte do cirurgiãodentista devido ao seu alto grau de complexidade. Esse envelhecimento precoce é causado principalmente por hábitos parafuncionais, dieta ou ambos. Suas consequências são desgastes patológicos dos tecidos dentários, extrusão passiva, perda de dimensão vertical e comprometimento estético e funcional. Por conta disso, o presente estudo teve como objetivo realizar um relato de caso clínico em um paciente jovem e com queixa estética como consequência de hábitos parafuncionais, aonde foram realizados uma reabilitação oral envolvendo aumento da dimensão vertical de oclusão através de Table Tops sem desgastes dentários e restaurações estéticas, ambas com resina composta. Essa reabilitação devolveu a DVO da paciente, trazendo conforto, contatos estáveis, guias de desoclusão e satisfação estética e funcional por parte da paciente(AU)

Early oral aging has an increasing incidence in dental offices and its degradation to oral tissues requires attention from the dentist due to its high degree of complexity. This premature aging is mainly caused by parafunctional habits, diet, or both. Its consequences are pathological wear of dental tissues, passive extrusion, loss of vertical dimension and aesthetic and functional impairment. Because of this, the present study aims to carry out a clinical case report in a young patient with an aesthetic complaint as a result of parafunctional habits, where an oral rehabilitation was carried out involving an increase in the vertical dimension of occlusion through Table Tops without dental wear and aesthetic restorations, both with composite resin. This rehabilitation returned the patient's OVD, bringing comfort, stable contacts, disocclusion guides and aesthetic and functional satisfaction on the part of the patient(AU)

Bruxismo como consequência do estresse pandêmico: revisão integrativa / Bruxism as a consequence of pandemic stress: integrative review

O período pandêmico com todas as suas implicações possibilitou um aumento dos níveis de estresse em parte da população, que teve como consequência a obtenção ou o agravamento do bruxismo. Objetivo: O objetivo deste artigo foi realizar uma revisão integrativa sobre como o estresse causado pela pandemia de COVID-19 influenciou no desenvolvimento do bruxismo, considerando o perfil dos indivíduos acometidos. Realizou-se uma revisão integrativa da literatura a partir da seleção de artigos publicados nas bases de dados BVS, PubMed e EBSCOhost. Para isto, a seguinte questão de pesquisa foi formulada: "Existe relação entre o bruxismo e a pandemia de COVID-19?". A busca objetivou encontrar artigos publicados em português, espanhol e inglês, durante os anos de 2019 a 2023, utilizando os descritores "bruxismo", "COVID-19" e "estresse psicológico" e as suas respectivas versões em inglês, juntamente com a estratégia de busca AND. Revisão de literatura: Vinte estudos foram incluídos, ficando evidente uma prevalência do bruxismo como consequência do estresse pandêmico em pessoas jovens, do sexo feminino, além de estudantes/profissionais da área da saúde. Considerações finais: Acredita-se que a pandemia de COVID-19 vivenciada entre os anos de 2019 e 2023 tenha causado e/ou exacerbado estresse, sendo este um importante fator causador do bruxismo.(AU)

The pandemic period with all its implications allowed an increase in stress levels in part of the population, which resulted in the obstruction or worsening of bruxism. Objective: The aim of this article was to carry out an integrative review on how the stress caused by the COVID-19 pandemic influenced the development of bruxism, considering the profile of affected individuals. Method: An integrative literature review was carried out based on the selection of articles published in the VHL, PubMed and EBSCOhost databases. For this, the following research question was formulated: "Is there a relationship between bruxism and the COVID-19 pandemic?". The search aimed to find articles published in Portuguese, Spanish and English, during the years 2019 to 2023, using the descriptors "bruxism", "COVID-19" and "psychological stress" and their respective versions in English, together with the strategy of search AND. Integratve review: Twenty studies were included, revealing a prevalence of bruxism as a consequence of pandemic stress in young, females, in addition to students/health professionals. Final considerations: It is believed that the COVID-19 pandemic experienced between 2019 and 2023 caused and/or exacerbated stress, which is an important factor causing bruxism.(AU)

Prevalence of bruxism among college students: what are the associated factors? A cross-sectional study

Evaluate the prevalence of bruxism and to analyze what are the possible associated factors with this condition in students of a Brazilian university. Methods: This was a cross-sectional study, with a sample of 230 students randomly selected among undergraduate courses at a university center. The dependent variable was the presence of awake bruxism and sleep bruxism. The independent variables were sociodemographic factors, smoking, alcohol consumption, oral habits and stress perception (Perceived Stress Scale- PSS 14). Descriptive statistics and bivariate analysis were used. Results: The prevalence of awake bruxism was 28.7% and was associated with the independent variables: course (degree program), gum chewing habits, chin hand placing, facedown sleeping and one-side biting. Sleep bruxism had a 7.0% prevalence and displayed association with gum chewing, pens/pencils/objects biting, tongue/lips/cheeks biting, nails biting and one-side biting. Perceived stress was not associated with either type of bruxism. Conclusion: Bruxism has an important prevalence among university students, especially when distinguishing between awake bruxism and sleep bruxism

Tooth wear due to dental attrition among 12-year-old adolescents / Desgaste dentário por atrição entre adolescentes de 12 anos de idade

Aim: To evaluate the prevalence and distribution of tooth wear due to dental attrition among 12-year-old adolescents according to their gender, reports of tooth grinding during sleep/while awake (bruxism), and sleep features related to sleep-disordered breathing. Methods: A cross-sectional study was conducted with 172 adolescents from southeast Brazil. Parents/caregivers answered questions about sociodemographic characteristics; reports of adolescents' tooth grinding during sleep, and sleep features (e.g. sleep duration and position, snoring, drooling on the pillow) in the previous two weeks. Adolescents self-reported the occurrence of tooth clenching/grinding while awake in the previous two weeks. Tooth wear due to dental attrition was assessed by a previously calibrated researcher, using a validated 5-point analogical ordinal occlusal/incisal tooth wear grading scale, with scores ranging from 0 (no wear) to 4 (loss of crown height ≥ 2/3), depending on tooth wear severity. Descriptive statistics and the Mann-Whitney test (p < 0.05) were performed to identify differences in tooth wear due to the distribution of dental attrition, according to adolescents' characteristics. Results: Most adolescents were female (58.0%) and 81.6% of the participants presented tooth wear due to dental attrition within the enamel. Adolescents who snored had a higher number of incisors with tooth wear due to dental attrition (p = 0.035). Females showed a higher number of canines with tooth wear due to dental attrition (p = 0.020). Adolescents whose parents reported tooth grinding during sleep presented a higher number of bicuspids with tooth wear due to dental attrition (p = 0.001). Conclusion:Tooth wear due to dental attrition within the enamel was observed in most adolescents. The distribution, depending on specific groups of teeth, was higher among female adolescents, adolescents' whose parents reported tooth grinding, and adolescents who snored during sleep.

Objetivos: Avaliar a prevalência e distribuição de DDA entre adolescentes de 12 anos de acordo com o sexo, relato de ranger de dentes durante o sono e vigília (bruxismo) e características relacionadas a desordens respiratórias do sono.Método: Desenvolveu-se um estudo transversal com 172 adolescentes do sudeste do Brasil. Seus pais/responsáveis responderam um questionário contendo informações sociodemográficas, relato sobre os filhos rangerem os dentes durante o sono e hábitos do sono dos filhos (duração do sono, posição que dorme, roncar, babar no travesseiro) nas duas últimas semanas. Adolescentes relataram ocorrência de ranger/apertar de dentes durante a vigília nas duas últimas semanas. DDA foi avaliado por um pesquisador previamente calibrado através de uma escala analógica ordinal de cinco pontos de desgaste dentário para faces oclusal/incisal previamente validada, com escores variando de 0 (sem desgaste) a 4 (perda da coroa em altura ≥ 2/3), dependendo da gravidade do desgaste. Análises descritivas e teste de Mann-Whitney (p < 0,05) foram realizados para identificar as diferenças na distribuição de DDA de acordo com as características dos adolescentes.Resultados: A maioria dos adolescentes eram meninas (58,0%) e 81,6% dos participantes apresentaram DDA em esmalte em algum elemento dentário. Adolescentes que rocavam apresentavam mais incisivos com DDA (p = 0.035). Meninas apresentaram maior número de caninos com DDA (p = 0.020). Adolescentes que rangiam os dentes durante a noite apresentaram maior número de pré-molares com DDA (p = 0.001).Conclusão: Desgaste dentário por atrição em esmalte foi observado na maioria dos adolescentes. A distribuição, dependendo de grupos de dentes específicos, foi maior entre meninas, adolescentes que roncavam durante o sono e que rangiam os dentes durante o sono.

Prevalence and Risk Factors of Bruxism in a Selected Population of Iranian Children

ABSTRACT Objective: To investigate the prevalence of bruxism in Iranian children aged 6 to 12 years. Material and Methods: This cross-sectional study was conducted on 600 schoolchildren aged 6-12 years. The questionnaire consisted of two sections: the first section included demographic information, while the second evaluated the occurrence of bruxism. Kruskal-Wallis, Chi-Square, Fisher and Multinomial logistic regression were used. A level of p<0.05 was considered statistically significant. Results: 698 questionnaires were distributed, of which 600 participants were returned. According to Multinomial logistic regression, awake bruxism was associated significantly with the following variables: age, sequence of birth, recurrent headache, gastrointestinal disease, nasal obstruction, neurological disorder, easy child crying, sleep disorders, talking in a dream and snoring and jaw disorder. Sleep bruxism was associated significantly with age, premature birth, allergy, gastrointestinal disease, drooling, mouth breathing, nasal obstruction, oral habit, nail biting, sleep disorder, jaw disorders, and family history. Conclusion: Pre-birth and post-birth factors play an important role in the prevalence of bruxism in society. It is possible to prevent complications of bruxism by informing parents and making a timely diagnosis. Parents should be aware of this occurrence to reduce possible related factors to teeth and the masticatory system.

Bullying escolar: associação com possível bruxismo do sono e fatores desencadeantes / School bullying: association with possible sleep bruxism and triggering/precipitant factors

Bullying é um comportamento agressivo que gera consequências emocionais. Indivíduos vulneráveis estão sujeitos a sofrer esta agressão. Bruxismo do sono (BS) é uma atividade muscular mastigatória que está associado a fatores psicossociais. O objetivo do artigo 1 (n=431) foi analisar a associação de possível BS com bullying escolar. O objetivo do artigo 2 (n=425) foi identificar a associação entre fatores desencadeantes de bullying e indivíduos envolvidos em bullying como vítimas e vítimas-intimidadores. O objetivo do artigo 3 foi analisar a acurácia da resposta dada pelos responsáveis em um questionário acerca do BS comparado ao diário do sono. O estudo foi aprovado pelo Comitê de Ética e Pesquisa em Humanos da Universidade Federal de Minas Gerais (protocolo 82839718.4.0000.5149). Participaram da pesquisa escolares com idade entre 8 a 11 anos, matriculados em escolas públicas e privadas de Lavras, e seus responsáveis. Os responsáveis responderam a um questionário, desenvolvido para a pesquisa, com duas perguntas sobre a ocorrência do BS (ranger de dentes [RD]) nos escolares, dados sociodemográficos e um diário do sono de sete dias. Os escolares responderam um questionário, desenvolvido para a pesquisa, sobre dentes, cabelo, cor da pele, altura, peso, boca, nariz e outras características que podem interferir no relacionamento com os pares na escola; e preencheram a versão brasileira do Olweus Bully/Victim Questionnaire. A análise estatística do artigo 1, 2 e 3 incluiu análises descritivas. A regressão de Poisson (RR:Razão das Taxas) foi utilizada no artigo 1 e a regressão Logística Multinomial (OR) no artigo 2 (p≤0,05). No artigo 3 os resultados foram fornecidos com curva ROC e medição de acurácia (área sob a curva ­ AUC). Como resultado para o artigo 1 verificou-se que a frequência de RD entre os escolares vítimas-intimidadores foi 1,57 maior (RR=1,57; IC95%=1,04­2,36; p= 0,030). A frequência de RD entre os escolares que relataram acordar cansados pela manhã pelo menos uma vez por semana foi 1,33 vezes maior (RR=1,33; IC95%=1,00­1,78; p=0,050) e a frequência de RD entre escolares cuja renda familiar mensal é igual ou inferior a um salário mínimo apresentou 1,49 vezes maior (RR=1,49, IC95%=1,04-2,13, p=0,027). No artigo 2 observou-se que escolares vítimas-intimidadores eram mais propensos a serem de escola pública (OR=5,43, IC95%=1,14-25,91; p=0,034) e os escolares vítimas de bullying eram mais propensos a relatarem outras características individuais, como uso de óculos (OR=3,31; IC95%=1,14-9,57; p=0,027) e características dos dentes (OR=3,80; IC95%=1,38-10,41; p=0,010) como fatores que atrapalham seu convívio com os colegas. No artigo 3 verificou-se que a comparação do questionário com o diário do sono, para diagnóstico de BS, demonstrou uma AUC de 87,6% (IC95%=83,2% - 92,1%). Conclui-se que estar envolvido em comportamentos de bullying na escola, cansaço do escolar ao acordar e baixa renda familiar estão associados ao possível BS entre escolares. Os achados mostraram, também, que dentes e outras características individuais estão associados à ser vítima de bullying e estar envolvido em bullying como vítima-intimidador está associado com o tipo de escola. O questionário de diagnóstico de BS mostrou uma acurácia relevante quando comparado ao diário do sono de 7 dias.

Bullying is an aggressive behavior that generates emotional consequences. Vulnerable individuals are more likely to suffer this aggression. Sleep bruxism is a masticatory muscle activity that is associated with psychosocial factors. The objective of article 1 (n=431) was to analyze the association of possible sleep bruxism (SB) with school bullying. The objective of article 2 (n=425) was to identify the association between triggering factors of bullying and individuals involved in bullying as victims and bully-victims. The objective of article 3 was to analyze the accuracy of the response given by guardians in a questionnaire about sleep bruxism (SB) compared to the sleep diary. The study was approved by the Human Research Ethics Committee of the Federal University of Minas Gerais under protocol number CAAE 82839718.4.0000.5149. Schoolchildren aged between 8 and 11 years old, enrolled in public and private schools in Lavras, and their guardians participated in the research. Guardians answered a questionnaire, developed for research, about the occurrence of SB (gnashing teeth [GT]) in schoolchildren, sociodemographic data, and a seven- day sleep diary. The schoolchildren answered a questionnaire, developed for research, about teeth, hair, skin color, height, weight, mouth, nose, and other factors that can interfere with peer relationships at school. They completed the Brazilian version of the Olweus Bully/Victim Questionnaire. Statistical analysis of articles 1, 2 and 3 included descriptive analyses. Poisson regression (RR-Rate Ratio) was used in article 1 and Multinomial Logistic (OR) regression in article 2 (p≤0.05). In article 3 the results were provided with a ROC curve and accuracy measurement (area under the curve ­ AUC). As a result of article 1, it was found that the frequence of GT among schoolchildren were victims-bullies had 1.57 times higher (RR = 1.57; 95%CI=1.04­ 2.36; p= 0.030). The frequence of GT among schoolchildren who reported waking up tired in the morning at least once a week was 1.33 times higher (RR=1.33; 95%CI=1.00­1.78; p=0.050), frequence of GT among schoolchildren whose family monthly income is equal to a minimum wage or less presented 1.49 times higher (RR=1.49, 95% CI=1.04­2.13, p=0.027). In article 2, it was observed that bully-victim schoolchildren were more likely to be from public schools (OR=5.43, 95%CI=1.14- 25.91; p=0.034) and bullied schoolchildren were more likely to report other individual characteristics (example: use of glasses) (OR=3.31; 95%CI=1.14-9.57; p=0.027) and teeth characteristics (PR=3.80; 95%CI=1.38 -10.41; p=0.010) as factors that interfere with his interaction with colleagues. In article 3, it was found that the comparison of the questionnaire with the sleep diary, for the diagnosis of SB, showed an AUC of 87.6% (CI95%=83.2% - 92.1%) It was concluded that being involved in bullying behaviors at school, schoolchildren tiredness upon waking up, and low family income are associated with possible SB among students. The findings also showed that teeth and other individual characteristics are associated with bullying victims and being involved in bullying as a bully-victim is associated with the type of school. The SB diagnostic questionnaire showed relevant accuracy when compared to the 7-day sleep diary.

Self-Report of the perception of stress and signs of bruxism generated during the pandemic in student of the health area / Autoinforme de la percepción de estrés y signos de bruxismo derivados de la pandemia en estudiantes del área de la salud

Abstract Bruxism is the repetitive muscle-mandibular behavior characterized by clenching and/or grinding of the teeth, which reflects the presence of one or more underlying conditions or factors. The objective of this descriptive study was to determine the association between bruxism and stress self-perceived during the pandemic, as well as their frequency by gender and academic area. An interrogation and self-perceived stress scale PSS-14 were applied to students from the different areas of the Institute of Health Sciences (ICSa) to determine the presence or absence of stress and bruxism symptom, a Chi-square was used for the comparison between variables, considering a value of p0.005. ICSa students between 18 and 24 age perceive symptoms of bruxism and high levels of stress caused during the pandemic.

Resumen El bruxismo es el comportamiento músculo-mandibular repetitivo caracterizado por apretamiento y/o rechinamiento de los dientes, que refleja la presencia de una o varias condiciones o factores subyacentes. Se realizó un estudio descriptivo con el objetivo de determinar la asociación del nivel de estrés y síntomas de bruxismo autopercibidos durante la pandemia, así como su frecuencia por género y área académica. Se aplicó un interrogatorio y escala de estrés percibido PSS-14 a los estudiantes de las distintas áreas del Instituto de Ciencias de la Salud (ICSa) para determinar la presencia o ausencia de estrés y síntomas de bruxismo, se utilizó una Chi-cuadrada para la comparación entre variables, considerando significativo un valor de p0.0001. Los estudiantes de 18 a 24 años de edad del ICSa perciben síntomas de bruxismo y altos niveles de estrés originados durante la pandemia.

Bruxism an issue between the myths and fact / Bruxismo, un problema entre los mitos y los hechos

Abstract Is our goal in this paper to discuss the current concepts about bruxism, a topic that has been a matter of discussion on the dental field for many years. Recent International efforts have been made to challenge bruxism old definitions; this has derivate to a consensus and an actual new concept that defines bruxism as a behavior instead of a disorder. As a behavior, it is explained in this review how it can have negative health consequences, can be innocuous and how new research support that bruxism can even be a protective factor. Different etiological factors are reviewed in this paper as well the influence of external and internal mechanism related to medications, emotional stress, systemic factors, and potential pharmacological pathways. Moreover, it is briefly summarized the role of oral appliances on sleep bruxism. Finally, clinical considerations and recommendation for the dental professional regarding sings that should be notice during the exam are part of this overview.

Resumen Es nuestro objetivo en este artículo discutir los conceptos actuales sobre el bruxismo, un tema que ha sido motivo de discusión en el campo odontológico durante muchos años. Se han hecho esfuerzos internacionales recientes para desafiar las viejas definiciones de bruxismo; esto ha derivado en un consenso y en la actualidad un nuevo concepto que define al bruxismo como un comportamiento en lugar de un trastorno. Como conducta, se explica en esta revisión cómo puede tener consecuencias negativas para la salud, puede ser inocuo y cómo nuevas investigaciones avalan que el bruxismo puede incluso ser un factor protector. En este artículo se exponen diferentes factores etiológicos, así como la influencia de mecanismos externos e internos relacionados como: medicamentos, estrés emocional, factores sistémicos y posibles vías farmacológicas. Además, se resume brevemente el papel de los aparatos orales en el bruxismo del sueño. Finalmente, se presentan consideraciones clínicas y la recomendación para el profesional en odontología con respecto a los signos que deben ser observados durante el examen clínico son parte de esta revisión.

Fratura de implante dentário: relato de caso / Dental implant fracture: case report / Fractura de implante dental: informe de un caso

Com o aumento da população brasileira e consequentemente o número de edêntulos realizando tratamentos reabilitadores com implantes dentários, se tornou frequente aparições de complicações como, por exemplo, sua fratura. O presente trabalho tem por objetivo apresentar as causas prováveis relacionadas a fratura de implante dentário, através de um relato de caso clínico onde pode-se avaliar a condição da fratura apresentada e como foi solucionada. Após a analise do caso clínico, foi constatado que o principal fator que levou a sua fratura foram as sobrecargas oclusais associadas ao mal posicionamento e a qualidade do implante antigo. A partir disso, conclui-se que é de extrema importância o cirurgião dentista estar ciente de todas as possíveis complicações acerca do implante dentário, afim de realizar um bom planejamento cirúrgico diminuindo a taxa de insucesso levando a um bom prognóstico.

With the increase of the Brazilian population and, consequently, the number of edentulous individuals undergoing rehabilitation treatmentes with dental implants, the appearance of complications such as, for example, their fracture has become frequent. The present work aims to presente the probable causes related to dental implant fracture, trough a clinical case report where the condition of the fracture presented and how it was resolved can be evaluated. After analyzing the clinical case, it was found that de main factor that led to its fracture were the occlusal overloads associated with poor positioning and the quality of the old implant. From this , it is concluded that it is extremely important for the dental surgeon to be aware of all possible complications regarding the dental implant, in order to carry out a good surgical planning, reducing the failure rate, leading to a good prognosis.

Con el aumento de la población brasileña y, en consecuencia, del número de personas edéntulas que se someten a tratamientos de rehabilitación con implantes dentales, las complicaciones, como las fracturas, se han vuelto comunes. El presente trabajo tiene como objetivo presentar las probables causas relacionadas con la fractura de implantes dentales, a través del reporte de un caso clínico, donde se puede evaluar la condición de la fractura presentada y la forma en que fue resuelta. Tras analizar el caso clínico, se comprobó que el principal factor que condujo a la fractura fue la sobrecarga oclusal asociada a una mala colocación y a la calidad del implante antiguo. Esto lleva a la conclusión de que es muy importante que el cirujano dental conozca todas las posibles complicaciones de los implantes dentales, para realizar una buena planificación quirúrgica, reduciendo así la tasa de fracasos y consiguiendo un buen pronóstico.

Probable bruxismo y calidad de vida relacionada con la salud oral / Probable Bruxism and Oral Health-Related Quality of Life

Resumen El bruxismo es el hábito de apretamiento y rechinamiento de los órganos dentarios (ODs), existiendo contactos dentarios que no tienen propósito. La calidad de vida relacionada con la salud oral (CVRSO), se define como un aspecto multidimensional que refleja la comodidad del individuo en relación con sus funciones fisiológicas y psicológicas, del estado de salud oral. Determinar la relación entre el probable bruxismo y la CVRSO en pacientes que acuden para atención en la Unidad Universitaria de Inserción Social (UUIS) de la Universidad Autónoma de Yucatán (UADY), de septiembre 2019 a enero 2020. Observacional, analítico de casos controles y transversal. Aplicándose a 70 pacientes dos instrumentos: el OHIP-EE-14 (validado por Castrejón-Pérez R.C., Borges-Yañez S.A.) y un cuestionario elaborado por Mendiburu-Zavala C., con base a Ordoñez Plaza et al., González-Emsoto et al., y De La Hoz-Aizpurua et al para el diagnóstico de probable bruxismo. Se utilizó estadística descriptiva e inferencial. Un 47.1% (n=33) sí presentó probable bruxismo (CPB) y un 52.9% (n=37) no (SPB). El grupo etario más frecuente fue el de 18-35 años, con 67.2% (n=47), un 34.3% (n=24) CPB. La manifestación circadiana, más frecuente fue la de vigilia con 49% (n=16). Los de CPB, se obtuvo una media de 20.45±7.95 en la puntuación del OHIP-EE-14 (CVRSO) y SPB, la media fue de 7.81±4.84. Si existen diferencias estadísticamente significativas entre los pacientes CPB y los SPB (p<.001). El probable bruxismo si repercute en el nivel de la CVRSO.

Abstract Bruxism is the habit of squeezing and grinding the dental organs (ODs), with dental contacts that have no purpose. The Oral Health-Related Quality of Life (OHRQoL) is defined as a multidimensional aspect that reflects the comfort of the individual in relation to their physiological and psychological functions, of the state of oral health. To determine the relationship between probable bruxism and OHRQoL in patients who came for care at the University Unit of Social Insertion (UUIS) of the Autonomous University of Yucatán (UADY), México from September 2019 to January 2020. Observational, analytical of case controls and cross-sectional. Two instruments were applied to 70 patients: the OHIP-EE-14 (validated by Castrejón-Pérez R.C., Borges-Yañez S.A.) and a questionnaire prepared by Mendiburu-Zavala C., based on Ordoñez Plaza et al., González-Emsoto et al., and De La Hoz-Aizpurua et al for the diagnosis of probable bruxism. Descriptive and inferential statistics were used. 47.1% (n=33) did present probable bruxism (CPB) and 52.9% (n=37) did not (SPB). The most frequent age group was 18-35 years old, with 67.2% (n=47), 34.3% (n=24) CPB. The most frequent circadian manifestation was waking with 49% (n=16). Those of CPB, a mean of 20.45±7.95 was obtained in the OHIP-EE-14 for the OHRQoL and SPB score, the mean was 7.81±4.84. There are statistically significant differences between CPB and SPB patients (p<.001). The probable bruxism does affect the OHRQoL level.

Grado de afectación del bruxismo y estado de ansiedad durante la pandemia de la COVID-19 / Degree of bruxism affectation and anxiety state during the COVID-19 pandemic

RESUMEN Fundamento: El deterioro del estado psicoemocional producto de la pandemia de la COVID-19 se ha relacionado con el bruxismo. Objetivo: Describir signos y síntomas más frecuentes, el grado de afectación del bruxismo y nivel de ansiedad en pacientes con bruxismo durante la pandemia de la COVID-19. Metodología: Estudio observacional, descriptivo, retrospectivo entre enero del 2019 y el 2020 en el Consultorio Médico de la Familia n.o 10 del Área Norte de Sancti Spíritus. Se incluyeron 35 pacientes diagnosticados con bruxismo, elegidos mediante un muestreo aleatorio sistemático, según criterios de inclusión. Se utilizaron métodos del nivel teórico y empírico para evaluar las variables edad, sexo, estado de ansiedad, signos, síntomas y grado de afectación del bruxismo. Resultados: El sexo femenino representó el 62.9 % y el grupo de edad de 35-60 el 45.7 %. El síntoma más frecuente del bruxismo fue el dolor en los músculos masticatorios (88.6%). Cambiaron de 28.6 % a 65.7 % los pacientes con grado II de bruxismo y el nivel de ansiedad de medio del 42.9 % a un 80 %. Conclusiones: Durante la pandemia de COVID-19 hubo un incremento del nivel de ansiedad y el grado de afectación del bruxismo. El dolor en los músculos masticatorios fue el síntoma más frecuente en los pacientes con bruxismo.

ABSTRACT Background: The worsening of the psychoemotional state resulting from the COVID-19 pandemic has been related to bruxism. Objective: To describe the most frequent signs and symptoms, the degree of bruxism affectation and anxiety state in patients with bruxism during the COVID-19 pandemic. Methodology: Observational, descriptive, retrospective study between January 2019 and 2020 at the Doctor´s Office No. 10 of the Northern Area of Sancti Spíritus. 35 patients diagnosed with bruxism were included, chosen by systematic random sampling, according to inclusion criteria. Theoretical and empirical methods were used to evaluate the variables age, sex, anxiety state, signs, symptoms and degree of bruxism affectation. Results: Female sex represented 62.9 % and the 35-60 age group 45.7 %. The most frequent symptom of bruxism was pain in the masticatory muscles (88.6 %). It changed from 28.6 % to 65.7 % patients with grade II bruxism and from 42.9 % medium anxiety state to 80 %. Conclusions: During the COVID-19 pandemic there was an increase in the anxiety state and the degree of bruxism affectation. Pain in the masticatory muscles was the most frequent symptom in patients with bruxism.

Algunas consideraciones sobre el tratamiento precoz en pacientes con bruxismo / Some considerations on the early treatment in patients with bruxism

El bruxismo es una disfunción neuromuscular considerada hoy día una parafunción, ya sea consciente (bruxismo en vigilia) o inconsciente (bruxismo del sueño). Debido al posible daño que puede ocasionar en las estructuras del aparato estomatognático, el tratamiento precoz resulta muy importante, de ahí la necesidad de un diagnóstico temprano para aplicar medidas preventivas y curativas. Teniendo en cuenta lo anterior, se realizó el presente estudio con el objetivo de fundamentar diferentes aspectos concernientes al tema en cuestión.

Bruxism is a neuromuscular dysfunction considered a parafunction nowadays, either conscious (awake bruxism) or unconscious (sleep bruxism). The early treatment is very important due to the possible damage that can cause in the structures of the stomatognathic system, hence the necessity of an early diagnosis to apply preventive and healing measures. Taking into acount the above-mentioned, the present study was carried out aimed at supporting different aspects concerning the topic in question.

Cannabis. Usos y aplicaciones en la práctica odontológica diaria: revisión de la literatura / Cannabis. Uses and applications in daily dental practice: a review of the literature

La evidencia científica presente en la literatura indica que el cannabis puede ser utilizado con fines terapéuticos para tratar distintas afecciones odontológicas. Dado el acceso sencillo a la cavidad bucal, las distintas formulaciones de cannabis pueden aplicarse de forma tópica. La aplicación local de dosis bajas de cannabis ha demostrado alta efectividad para tratar distintas afecciones bucales, constituyendo un tratamiento seguro con baja probabilidad de generar repercusiones sistémicas indeseadas. En la actualidad, está siendo incorporado a materiales convencionales de uso e higiene odontológica con la finalidad de aprovechar sus efectos terapéuticos. El cannabis tiene múltiples usos en odontología: como componen-te de enjuagues bucales y soluciones para la desinfección de conductos radiculares, en tratamientos de trastornos de ansiedad bucal, como complemento en terapias oncológicas, como analgésico para atenuar el dolor inflamatorio y el neuropático, como miorrelajante y condroprotector para tratar trastornos de articulación témporomandibular (ATM) y bruxismo, como osteomodulador para el tratamiento de patologías que comprometen la integridad ósea, como la enfermedad periodontal y la osteoporosis, y para la cicatrización ósea asociada a fracturas, extracciones dentarias e implantes, y como inmunomodulador con potencial terapéutico para tratar patologías autoinmunes como las enfermedades reumáticas. El trata-miento local con cannabis es efectivo, bien tolerado por el paciente y con pocos efectos adversos. Por lo tanto, se puede concluir que el cannabis aporta un enorme abanico de posibilidades terapéuticas para tratar distintas afecciones odontológicas, aunque aún se requiere mayor cantidad de estudios científicos que avalen su utilización en cada situación fisiopatológica particular (AU)

The scientific evidence present in the literature indicates that cannabis can be used for therapeutic purposes to treat different dental conditions. Given the easy access to the oral cavity, the different cannabis formulations can be applied topically. The local application of low doses of cannabis has shown high effectiveness in treating different oral conditions, constituting a safe treatment with a low probability of generating unwanted systemic repercussions. It is currently being incorporated into conventional materials for dental use and hygiene in order to take advantage of its therapeutic effects. Cannabis has multiple uses in dentistry: as a component of mouthwashes and solutions for disinfecting root canals, in the treatment of oral anxiety disorders, as a complement in oncological therapies, as an analgesic to reduce inflammatory and neuropathic pain, as a muscle relaxant and chondroprotective to treat temporomandibular joint disorders and bruxism, as an osteomodulator for the treatment of pathologies that compromise bone integrity, such as periodontal disease and osteoporosis, and or bone healing associated with fractures, dental extractions and implants, and as immunomodulator with therapeutic potential to treat autoimmune pathologies such as rheumatic diseases. Local treatment with cannabis is effective, well tolerated by the patient and with few adverse effects. Local treatment with cannabis is effective, well tolerated by the patient and with few adverse effects. Therefore, it can be concluded that cannabis provides an enormous range of therapeutic possibilities to treat different dental conditions, although more scientific studies are still required to support its use in each particular pathophysiological situation (AU)

Bruxismo do sono e em vigília em adolescentes: prevalência, fatores associados e análise de caminhos / Sleep and awake bruxism in adolescents: prevalence, associated factors and pathways to occurrence

O Bruxismo é um comportamento, com atividade muscular mastigatória, que pode apresentar-se como bruxismo do sono (BS) e bruxismo em vigília (BV). Possui etiologia multifatorial, sendo pouco explorado entre adolescente. Essa tese é composta por dois artigos que avaliam a prevalência, fatores associados e análise de caminhos. O objetivo do artigo 1 (n=403) foi reconhecer os caminhos que influenciam a ocorrência de provável bruxismo do sono (PBS) e provável bruxismo em vigília (PBV) em adolescentes. O artigo 2 (n=342) objetivou avaliar a associação entre PBV e hábitos de morder, satisfação de vida, caracteristicas do sono e perfil cronotipo em adolescentes, por meio de um estudo caso-controle. Com aprovação do comitê de ética institucional, participaram do estudo adolescentes de 12 a 19 anos de idade, regularmente matriculados em escolas públicas e privadas de Belo Horizonte. Os pais/cuidadores responderam a um questionário sobre características do sono de seus filhos. Os adolescentes responderam aos seguintes instrumentos: questionário sobre hábitos de morder, características do sono e relato de bruxismo; a escala "The Circadian Energy Scale" (CIRENS), para mensurar o perfil cronotipo; e o dominio self da versão brasileira da Escala Multidimensional de Satisfação de Vida para Adolescentes (EMSVA). O PBS e PBV foram mensurados considerando o auto relato positivo, somado à presença de desgaste dentário por atrição aferido em exame clinico feito pela pesquisadora previamente calibrada. A análise descritiva foi incluida nos artigos 1 e 2. O artigo 1 usou a análise de caminhos, tecnica que descreve as dependências direcionadas entre um conjunto de variáveis. No artigo 2 foi feita regressão logistica condicional (OR) (p<0,05). Como resultados no artigo 1, verificou-se que 22,3% dos adolescentes apresentaram PBS e 51,1% PBV. As duas manifestações de bruxismo apresentaram associação entre si, com uma correlação moderada e positiva (ß= 0,390). Qualidade do sono e renda familiar tiveram um efeito direto sobre PBS (ß= - 0,138; ß=0,123; respectivamente) e em PBV (ß= - 0,155; ß=0,116; respectivamente), de modo que aqueles com maior renda e com má qualidade do sono tenderam a apresentar provável bruxismo tanto BS, quanto BV. Cronotipo teve efeito direto sobre o PBS, de modo que adolescentes com cronotipo matutino tenderam a ter o comportamento (ß= -0,102). Adolescentes que relataram babar no travesseiro enquanto dormiam (ß= 0,184) e/ou que tinham sono agitado (ß= 0,104) tenderam a apresentar PBS. Já no artgido 2 verificou-se que má qualidade do sono (OR=1,731, IC95% 1,054-2,842, p=0,030), hábito de morder objetos muitas vezes (OR=3,303, IC95% 1,631-6,690, p=0,001), hábito de morder ou apertar os lábios algumas vezes (OR=2,134, IC95% 1,230-3,702, p=0,007) e hábito de morder ou apertar os lábios muitas vezes nas duas semanas anteriores à avaliação (OR=2,355, IC95% 1,203- 4,608, p=0,012) foram associados à ocorrencia de PBV. Concluiu-se com o artigo 1 que o perfil cronotipo, renda familiar e caracteristicas do sono influenciaram no caminho percorrido pelo PBS, enquanto renda e qualidade do sono influenciam o PBV. Enquato atraves do artigo 2, concluiu- se que adolescentes com má qualidade do sono e que apresentam habitos de morder tiveram mais chance de apresentar PBV.

Bruxism is a behavior, with masticatory muscle activity, which can present itself as sleep bruxism (SB) and awake bruxism (AB). It has a multifactorial etiology, and is little explored among adolescents. This thesis is composed of two articles assessing prevalence, associated factors, and path analysis. The objective of article 1 (n=403) was to recognize the pathways influencing the occurrence of probable sleep bruxism (PSB) and probable awake bruxism (PAB) in adolescents. Paper 2 (n=342) aimed to evaluate the association between PSB and biting habits, life satisfaction, sleep characteristics and chronotype profile in adolescents by means of a case-control study. After approval by the institutional ethics committee, adolescents aged 12 to 19 years, regularly enrolled in public and private schools in Belo Horizonte, Brazil, participated in the study. Parents/caregivers answered a questionnaire about their children's sleep characteristics. The adolescents answered the following instruments: a questionnaire about biting habits, sleep characteristics and bruxism report; the Circadian Energy Scale (CIRENS), to measure the chronotype profile; and the self domain of the Brazilian version of the Multidimensional Life Satisfaction Scale for Adolescents (MLSSA). The PSB and PAB were measured considering the positive self-report, added to the presence of attrition dental wear measured in a clinical examination performed by a previously calibrated researcher. Descriptive analysis was included in articles 1 and 2. Article 1 used path analysis, a technique that describes the directed dependencies among a set of variables. In article 2, conditional logistic regression (OR) was performed (p<0.05). As results in article 1, it was found that 22.3% of the adolescents presented PSB and 51.1% PAB. The two manifestations of bruxism showed an association with each other, with a moderate and positive correlation (ß= 0.390). Sleep quality and family income had a direct effect on PSB (ß= - 0.138; ß=0.123; respectively) and on PAB (ß= -0.155; ß=0.116; respectively), so that those with higher income and poor sleep quality tended to show likely bruxism in both SB and AB. Chronotype had a direct effect on PSB, such that adolescents with morning chronotype tended to have the behavior (ß= -0.102). Adolescents who reported drooling on the pillow while sleeping (ß= 0.184) and/or who had restless sleep (ß= 0.104) tended to present PSB. In artgid 2, on the other hand, it was found that poor sleep quality (OR=1.731, 95%CI 1.054-2.842, p=0.030), habit of biting objects often (OR=3.303, 95%CI 1.631-6.690, p=0.001), habit of biting or tightening lips sometimes (OR=2, 134, 95%CI 1.230-3.702, p=0.007) and biting or lip-squeezing often in the two weeks prior to evaluation (OR=2.355, 95%CI 1.203- 4.608, p=0.012) were associated with the occurrence of PAB. It was concluded with article 1 that the chronotype profile, family income and sleep characteristics influence the path taken by PSB, while income and quality of sleep influence PAB. In article 2, it was concluded that adolescents with poor sleep quality and those with biting habits were more likely to present PAB.

Bruxismo y desagaste oclusal asociado a enterobiasis en niños en edad preescolar de la provincia Junín / Bruxism and occlusal wear associated with enterobiasis in preschool children from Junín province

Debido a que el bruxismo es un hábito oral prevalente entre los niños y un potencial destructor de los tejidos orales, el presente estudio tuvo como objetivo investigar la relación entre las infecciones por Enterobius vermicularis y el bruxismo entre los niños de un preescolar en la provincia de Junin. La muestra estuvo conformoda por 96 niños de 4 a 6 años. El bruxismo se investigó en base a los informes de los padres sobre el rechinar de dientes por la noche, la calidad del sueño y aspectos clínicos tanto intraorales como extraorales relacionados con la afección. El análisis de datos involucró estadísticas descriptivas, chi-cuadrado de Pearson. La prevalencia de bruxismo fue de 65,62%. Se observó a través del índice de BEWE en los infantes con bruxismo y parasitados por E. vermicularis que el 30,15% se diagnóstico defecto evidente con pérdida de tejido duro menor. No se evidenció asociación estadísticamente significativa entre el bruxismo y el parsitismo por E. vermicularis. Con base en los presentes hallazgos, la prevalencia del bruxismo del sueño fue significativo(AU)

Because bruxism is a prevalent oral habit among children and a potential destroyer of oral tissues, the present study aimed to investigate the relationship between Enterobius vermicularis infections and bruxism among children of a preschool in the province of Junin. The sample consisted of 96 children from 4 to 6 years old. Bruxism was investigated based on parental reports of nighttime teeth grinding, sleep quality, and both intraoral and extraoral clinical aspects related to the condition. Data analysis involved descriptive statistics, Pearson's chi-square. The prevalence of bruxism was 65.62%. It was observed through the BEWE index in infants with bruxism and parasitized by E. vermicularis that 30.15% were diagnosed with an obvious defect with minor hard tissue loss. No statistically significant association was found between bruxism and E. vermicularis parasitism. Based on the present findings, the prevalence of sleep bruxism was significant(AU)

Associação de hábitos parafuncionais e DTM em pacientes classe II / Association of parafunctional habits and TMD class II patients

Introdução: A Disfunção Temporomandibular (DTM) é a dor orofacial crônica mais comum, encontrada por dentistas e outros profissionais de saúde. Sua etiologia tem caráter multifatorial, e pode envolver, desde fatores hereditários, hábitos parafuncionais, maloclusões, até ansiedade e estresse. Objetivo: Este estudo investigou a frequência da DTM e a sua relação entre hábitos parafuncionais em uma população de pacientes classe II esquelética. Método: Uma amostra composta por pacientes classe II esquelética foi selecionada de forma não probabilística. Setenta e três indivíduos concordaram em participar da pesquisa, se submetendo ao exame físico que consistia na aplicação do Eixo I do (RDC/TMD). Resultados: Quarenta e seis por cento dos pacientes examinados apresentaram diagnóstico positivo. A média de idade dos pacientes foi de 27 anos+ 8,73 anos, 82% do gênero feminino e 80% brancos. Trinta e quatro pacientes referiram alguma atividade parafuncional. Desses a onicofagia representou o grupo com maior frequência, seguido pelo bruxismo, interposição de objetos entre os dentes e por último o apertamento. As variáveis não apresentaram associação estatisticamente significante com o desfecho primário estudado. Conclusão: Na amostra estudada não se observou associação entre a ocorrência de DTM e hábitos parafuncionais em pacientes classe II esquelética... (AU)

Introduction: Temporomandibular disorder (TMD) is the most common chronic orofacial pain, found by dentists and other health professionals. Its etiology has a multifactorial character, and may involve, from hereditary factors, parafunctional habits, malocclusions, to anxiety and stress. Objective: This study investigated the TMD frequency and its relationship among parafunctional habits in a population of skeletal class II patients. Method: A sample composed by a class II patients was selected in a non probabilistic manner. Seventy-three members agreed to participate in the research, submitting themselves to a physical examination that consists in the application of Axis I (RDC/TMD). Results: Forty-six percent of patients diagnosed with a positive diagnosis. The average age of the patients was 27 years ± 8.73 years, 82% female and 80% white. Thirty-four patients reported some parafunctional activity. Of these, biting nail represented the group most frequently, followed by bruxism, interposition of objects between the teeth and lastly clenching. As variables did not present a statistically significant association with the primary outcome studied. Conclusion: In the sample studied, it is observed that there is no association between TMD occurrence and parafunctional habits in skeletal class II patients... (AU)

SAT: Sistematización Adhesiva Temporaria. Integración estético-oclusal predecible en rehabilitación conservadora. Informe de caso y revisión bibliográfica / TAS: Temporary Adhesive Systematization. Predictable aesthetic-occlusal integration in conservative rehabilitation. Case report and bibliographic review

Objetivos: Realizar una revisión de la literatura sobre métodos de rehabilitación mínimamente invasivos, y presentar un caso clínico acerca de un nuevo procedimiento denominado sistematización adhesiva temporaria (SAT), destinado a pacientes que presentan pérdida de sustancia dentaria y que se caracteriza como un abordaje terapéutico predecible para transferir el proyecto rehabilitador (encerado) a la boca del paciente mediante 3 pasos bien definidos y con objetivos específicos. Caso clínico: Un paciente adulto joven de sexo masculino con desgastes severos por bruxismo es rehabilitado temporalmente con resinas compuestas (SAT) para devolver la anatomía perdida en forma adhesiva y conservadora, siguiendo un protocolo de abordaje terapéutico predecible denominado EGOP (estéticamente guiado y oclusalmente protegido). Este procedimiento, que es considerado muchas veces de transición previo a las restauraciones finales, nos permite evaluar la estética, la oclusión y mejorar la comunicación entre el equipo de trabajo para poder realizar el cambio por restauraciones cerámicas en forma gradual. En aquellos pacientes que necesitan rehabilitaciones totales producto del desgaste dentario severo, la SAT puede ser una herramienta que facilite al odontólogo la posibilidad de restablecer los patrones oclusales y estéticos perdidos sin la necesidad de realizar desgastes dentarios y provisionales como se hacía clásicamente (AU)

Aims: To carry out a literature review on minimally-invasive rehabilitation methods and to present a clinical case on a new procedure called Temporary Adhesive Systemization (TAS), intended for patients that show a considerable loss of dental substance, characterized by a predictable therapeutic approach to transfer the rehabilitation diagnosis wax-up through 3 well defined steps and with specific objectives to the patient´s dentition. Clinical case: A young adult male patient with severe wear due to bruxism is temporarily rehabilitated with composite resins (TAS) to return the lost anatomy in a conservative way, following a predictable therapeutic approach protocol called EGOP (aesthetically guided and occlusally protected). This procedure, which is often considered transitional prior to final restorations, allows us to evaluate aesthetics, occlusion, improve communication between the working team and to be able to gradually change for ceramic restorations. In patients that need full rehabilitation due to severe dental erosion, TAS is a predictable procedure that helps the dentist to re-establish the loss of aesthetical and occlusal patterns, without the need of preparing the teeth for the classic provisional restorations (AU)

Análisis de las creencias limitantes a través del acompañamiento en Bioneuroemoción(R) de individuos con diagnóstico de bruxismo / Analysis of limiting beliefs through the accompainment in Bioneuroemotion(R) in individuals with a diagnosis of bruxism

El propósito de este trabajo cualtitativo fue aplicar el método de Bioneuroemoción en individuos que, estando en tratamiento por bruxismo, continuaban con dolor y sintomatología asociada. El análisis de las creencias limitantes en común de los individuos, las resonancias familiares y la emoción primaria desencadenada, permitieron obtener desde dónde percibían dichos individuos las situaciones de mayor estrés. Para ello, se consideró un diseño muestral centrado en un grupo de cinco pacientes que concurrían al Servicio de ATM (Articulación Temporomandibular) de un hospital odontológico de la Ciudad de Buenos Aires, donde estaban siendo tratados por bruxismo con placas miorrelajantes (AU)

Bruxism in children and adolescents with cerebral palsy / Bruxismo em crianças e adolescentes com paralisia cerebral

This study aims to summarize the existing evidence from primary studies in order to answer the following question: "are children and adolescents with cerebral palsy (CP) frequently affected by bruxism?". For such, databases Web of Science, Medline (via PubMed), Lilacs, SciELO, Scopus and Wiley Online Library were used, with the keywords "Cerebral Palsy" and "Bruxism" alone and in combination, without the restriction of the publication date. The search included all articles published until May 2020. A total of 229 publications were found, of which 12 were selected, after careful analysis. Retrospective data analyses, cross-sectional studies and observational casecontrol studies published in English and with samples composed of children and/or adolescents were included. Case reports, literature reviews and studies whose sample consisted of adults-only were excluded. In the evaluated studies, bruxism was present in all samples with cerebral palsy. However, oral signs and symptoms resulting from this parafunction were reported only in three studies, in which the presence of dental wear and pain was evaluated. Therefore, bruxism in children and adolescents with cerebral palsy is a frequent oral condition, however, knowledge about the associated and risk factors for the occurrence of this problem in these patients remains limited.

Esse estudo tem como objetivo resumir as evidências existentes de estudos primários, a fim responder à seguinte questão: "crianças e adolescentes com paralisia cerebral (PC) são frequentemente afetados pelo bruxismo?". Para tal, foram realizadas buscas nas bases de dados Web of Science, Medline (via PubMed), Lilacs, SciELO, Scopus and Wiley Online Library, utilizando os descritores "Paralisia Cerebral" e "Bruxismo" em inglês, e de forma associada, sem que houvesse delimitação de intervalo de tempo. A busca incluiu todos os artigos publicados até maio de 2020. Foi encontrado um total de 229 publicações, das quais foram selecionadas 12, após análise criteriosa das mesmas. Foram incluídas análises retrospectivas de dados, estudos transversais e estudos observacionais de caso-controle publicados em inglês e com amostras compostas por crianças e/ou adolescentes. Foram excluídos os relatos de casos, as revisões de literatura e os estudos cuja amostra era composta apenas por adultos. Nos estudos avaliados, o bruxismo esteve presente em todas as amostras com paralisia cerebral. Contudo, sinais e sintomas orais, decorrentes dessa para função foram relatados apenas em três estudos, nos quais se avaliou presença de desgastes dentários e dor. Assim sendo, o bruxismo em crianças e adolescentes com paralisia cerebral é uma condição oral frequente, no entanto, o conhecimento sobre os fatores associados e os fatores de risco para a ocorrência desse problema nesses pacientes permanece limitado.