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

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.

Probable awake bruxism - prevalence and associated factors: a cross-sectional study.

INTRODUCTION: Bruxism is defined as a repetitive activity of masticatory muscles, characterized by the clenching or grinding of the teeth, which can occur during wakefulness (awake bruxism) or during sleep (sleep bruxism). OBJECTIVES: The objectives of the present study were to determine the prevalence of awake bruxism and its associated factors. METHODS: Sample was composed by 50 participants of both genders, aged between 18 and 60 years, submitted to a clinical examination - to observe the presence of tooth wear, marks on the mucosa, or masseter muscles hypertrophy - and self-applied questionnaires, which evaluated the presence of TMD signs and symptoms, oral behaviors, lifestyles, anxiety level and sleep quality. RESULTS: The prevalence of awake bruxism was 48%. Its presence was statistically and significantly associated with the presence of signs and symptoms of TMD (p= 0.002), poor sleep quality (p = 0.032), buccal mucosa indentations (p < 0.001) and tongue (p = 0.011). Age, gender, social characteristics, habits (such as coffee ingestion, smoking, alcoholism and physical activity) and tooth wear were variables that had no significant association with awake bruxism. CONCLUSIONS: It was concluded that awake bruxism shows a high prevalence and a positive association with signs and symptoms of TMD and worst sleep quality. In addition, awake bruxism is more likely to occur in individuals who have buccal mucosa indentation and who present high rates of oral habits and oral behaviors.

Temporomandibular disorders in ankylosing spondylitis: a cross-sectional, monocentric study.

There are contradictory results in the relevant literature about the relationship between objective determinants of craniocervical posture and temporomandibular disorder (TMD), whereas no study has worked on ankylosing spondylitis (AS) and TMD relationship. We conducted this study to test the predictors of TMD in AS patients and its relationship with craniocervical posture. AS patients aged between 18 and 50 years consecutively admitted to our outpatient clinics were recruited. TMD was diagnosed by 'Diagnostic Criteria for Temporomandibular Disorders (DC/TMD)'. Spinal mobility was assessed by BASMI; disease activity by ASDAS-CRP and neck disability by Neck Disability Index. Craniocervical posture was assessed on lateral cervical X-ray by measuring the craniocervical angle, cervical curvature angle, suboccipital distance, atlas-axis distance, and anterior translation distance. A total of 98 (58.2% female) patients with a mean age of 37.4 ± 8.2 years were enrolled in this study. TMD was diagnosed in 58 (59.2%) patients. Spinal mobility and craniocervical posture measurements were similar among the two groups. Smoking, bruxism (in females), neck disability and AS disease activity (in males) were higher in TMD patients. Multivariate analysis revealed active smoking (aOR 6.9; 95% CI 1.8-25.6; p = 0.004), bruxism in females (aOR 17.9; 95% CI 2.0-159.2; p = 0.01), high ASDAS in males (aOR 11.8; 95% CI 1.2-122.5; p = 0.038) and neck disability (aOR 12.7; 95% CI 3.8-42.9; p < 0.001) as independent risk factors for TMD in AS patients. No relationship between the craniocervical posture measurements and TMD was found in AS patients. Active smoking, high disease activity in males, bruxism in females and neck disability were found as predictors of TMD in AS patients.

Salud bucal, higiene y hábitos bucales en personas con trastorno del espectro autista / Oral health, hygiene practices and oral habits of people with autism spectrum disorder

ABSTRACT Introduction: People with autism spectrum disorder have a higher risk of dental complications due to the characteristics of the condition itself. Objective: To describe the oral health status, hygiene practices and oral habits of a group of Chilean children, adolescents and adults with autism spectrum disorder. Methods: A descriptive study was conducted of 123 subjects with autism spectrum disorder. A questionnaire was applied which dealt with socio-demographic information, dental history, oral hygiene practices and oral habits. Each participating subject underwent oral examination to determine their experience with and prevalence of caries, scores on the Simplified Oral Hygiene Index and the gingival index, and the presence of dental trauma, deep/ogival palate, anterior open bite, and anterior and posterior crossbite. Results: 48 percent of the subjects with autism spectrum disorder brushed twice a day, and 68.0 percent required assisted tooth-brushing; 94.3 percent had oral habits, of which bruxism and oral breathing were the most frequent, accounting for 57.7 percent and 52.9 percent, respectively. Prevalence of caries was 33.3 percent, the dental caries index for permanent dentition was 1.1 ± 1.8, and the dental caries index for deciduous and permanent dentition was 2.6 ± 3.3. OHI-S for the 123 subjects was 1.30 ± 0.58. Conclusions: Most subjects required assistance with tooth-brushing and brushed twice a day. Bruxism and oral breathing were the most prevalent oral habits. A low prevalence of caries, a very low dental caries index for permanent dentition and a fair Oral Hygiene Index were observed in the 123 subjects with autism spectrum disorder(AU)

RESUMEN Introducción: Las personas con trastorno del espectro autista tienen un mayor riesgo de presentar complicaciones dentales, debido a las características propias de la enfermedad. Objetivo: Describir el estado de salud bucal, hábitos de higiene y hábitos bucales de un grupo de niños, adolescentes y adultos chilenos con trastorno del espectro autista. Métodos: Se realizó un estudio descriptivo de 123 sujetos con trastorno del espectro autista. Se aplicó un cuestionario sobre información socio-demográfica, antecedentes dentales, hábitos de higiene bucal y hábitos bucales, y se realizó un examen odontológico a cada participante para determinar la experiencia y prevalencia de caries, la puntuación según el índice de higiene bucal simplificado y el índice gingival, así como la presencia de traumatismo dentario, paladar profundo/ojival, mordida abierta anterior y mordida cruzada anterior y posterior. Resultados: El 48 por ciento de los sujetos con trastorno del espectro autista se cepillaba dos veces al día y el 68,0 por ciento tenía un cepillado asistido. El 94,3 por ciento presentaba hábitos bucales, de los cuales los más frecuentes eran el bruxismo con 57,7 por ciento y la respiración bucal con 52,9 por ciento. La prevalencia de caries fue de 33,3 por ciento, el índice total de caries en dentición permanente de 1,1 ± 1,8 y el índice total de caries en dentición temporal y permanente de 2,6 ± 3,3. El índice de higiene bucal simplificado para los 123 sujetos fue de 1,30 ± 0,58. Conclusiones: La mayor parte de los sujetos tenían un cepillado asistido y lo realizaban dos veces al día. Los hábitos bucales más prevalentes fueron el bruxismo y la respiración bucal. En los 123 sujetos con trastorno del espectro autista se observó una baja prevalencia de caries, un índice total de caries en dentición permanente muy bajo y un índice de higiene bucal regular(AU)

Vulnerabilidad y nivel de estrés en pacientes con bruxismo / Vulnerability and stress levels in patients with bruxism

RESUMEN Introducción: El bruxismo es un exponente desgarrador del sistema estomatognático que impacta en la calidad de vida de las personas que la padecen, siendo el estrés uno de sus desencadenantes. Objetivo: Identificar la vulnerabilidad y nivel de estrés en pacientes con bruxismo. Métodos: Se realizó un estudio observacional descriptivo de corte transversal, en 94 pacientes atendidos en la Clínica Universitaria de Especialidades Estomatológicas Manuel Cedeño, entre noviembre de 2017 a mayo de 2018, los cuales se diagnosticaron con bruxismo. Las variables fueron la vulnerabilidad al estrés y nivel de estrés. Resultados: Al caracterizar la población de estudio se mostró que el sexo femenino estuvo representado por el 55,31 por ciento, y el grupo atareo de 15 a 20 años fue el de mayor población (42,55 por ciento). Los resultados revelaron que los pacientes con bruxismo son seriamente vulnerables al estrés (53,19 por ciento) y tienen niveles de estrés que ha pasado el límite en el 45,74 por ciento de los casos. Conclusiones: Los pacientes con bruxismo son seriamente vulnerables al estrés y presentan niveles de estrés que ha pasado el límite(AU)

ABSTRACT Introduction: Bruxism is an extremely upsetting disorder of the stomatognathic system affecting the quality of life of its sufferers. Stress may act as a trigger for this condition. Objective: Determine the vulnerability and stress levels of patients with bruxism. Methods: A cross-sectional observational descriptive study was conducted of 94 patients diagnosed with bruxism attending Manuel Cedeño Dental Specialties University Clinic from November 2017 to May 2018. The variables considered were vulnerability to stress and stress level. Results: Characterization of the study population found that 55.31 percent were female and the largest age group corresponded to the 15-30 years bracket (42.55 percent). Results revealed that patients with bruxism are seriously vulnerable to stress (53.19 percent), stress limits being exceeded in 45.74 percent of the cases. Conclusions: Patients with bruxism are seriously vulnerable to stress, displaying stress levels that exceed the limit(AU)

The prevalence of bruxism and related factors in patients with multiple sclerosis: a comparative study.

OBJECTIVE: To determine the prevalence of bruxism and related factors in patients with multiple sclerosis (MS). METHODS: Diagnosed with relapsing-remitting MS under the 2010-revised McDonald diagnostic criteria, 182 patients without MS exacerbations during the previous three months were included in the patient group, and 145 healthy individuals made up the control group in the study. Demographic data of the participants in both groups were determined. In the patient and control groups, the diagnosis of definite bruxism was made using the International Classification of Sleep Disorders (Diagnosis and Coding Manual, Second Edition). RESULTS: Bruxism was found in 29.7% (n = 54) of the patients and in 12.4% (n = 18) of the controls, and the difference was statistically significant (p < 0.001). Of all patients, the onset of bruxism was found in 70.4% (n = 38) after the diagnosis and in 29.6% (n = 169) prior to the diagnosis of MS. Compared with those without bruxism, the mean age (p = 0.031) and the score of the Expanded Disability Status Scale (p = 0.001) were also significantly higher among MS patients with bruxism. Between MS patients with and without bruxism, no significant differences were found in terms of sex, marital status, educational status, employment, cigarette smoking, total number of exacerbations, number of exacerbations within the previous year, and drugs used. CONCLUSIONS: The frequency of bruxism was found to be higher in the patients with MS than in the controls. Bruxism is associated with age and the Expanded Disability Status Scale score in MS patients.

Common mental disorders and bruxism in adults: a birth cohort study.

OBJECTIVES: This study aimed to assess the prevalence of bruxism and its relationship with common mental disorders (CMD) during the life course of individuals. MATERIALS AND METHODS: A representative sample (n = 537) of all 5914 births occurring in Pelotas in 1982 were prospectively investigated regarding their oral health. The CMD screening was assessed through Self-Reported Questionnaire-20 (SRQ-20) at ages 22 and 30. Bruxism information was collected in the oral health survey at the age 31. Exploratory variables included demographic and socio-economic, mental health and unhealthy behaviours. Multivariate Poisson Regression analysis was used to estimate the association between bruxism and CMD. RESULTS: Bruxism prevalence was 41.1% at 31 years old. Presence of bruxism was positively associated with females (p = 0.003), lower school level (p = 0.001), and smoking habits (p = 0.021). CMD episodes were associated with bruxism (p < 0.001). Individuals presenting CMD at age of 30 years presented a 57% higher prevalence (PR 1.57; 95%CI 1.14-2.15) of bruxism, while in those individuals who presented CMD in both follow-ups (at 22 and 30 years old) the bruxism prevalence was 70% higher (PR 1.70; 95%CI 1.28-2.25). CONCLUSION: Subjects presenting signals and symptoms of common mental disorders during their life course presented higher prevalence of bruxism. CLINICAL SIGNIFICANCE: The presence of common mental disorders during life course impacts in the presence of bruxism in the adulthood. In addition, more episodes of common mental disorders were associated with higher prevalence of bruxism.

Prevalencia de Bruxismo y Estrés en Estudiantes de Odontología de la Pontificia Universidad Católica de Chile / Bruxism and Stress Prevalence in Dentistry Students of the Pontificia Universidad Católica de Chile

RESUMEN: El bruxismo corresponde a una actividad parafuncional de apretamiento dentario por acción de los músculos masticatorios. Dentro de los factores etiológicos del bruxismo, se encuentran estados emocionales como la ansiedad, depresión y situaciones de estrés, entre otros. Los estudiantes de Odontología, especialmente aquellos que se encuentran en su ciclo clínico, se someten a situaciones de alta exigencia que les generan estados de depresión, estrés y ansiedad. El objetivo de este estudio es medir la prevalencia de trastornos psicológicos como depresión, ansiedad y estrés y bruxismo en estudiantes de Odontología de 4to y 5to año de la Pontificia Universidad Católica de Chile. Mediante el uso de cuestionarios y exámenes clínicos, utilizando el cuestionario de la Asociación Americana de Medicina del Sueño y la Escala de Depresión-Ansiedad y Estrés (DAS-21), se determinó que el 62 % de los estudiantes presentaron bruxismo, con predominio en mujeres. Todos los alumnos que presentaron bruxismo manifestaron niveles de depresión, ansiedad y estrés. Estas cifras son importantes a considerar como señal de alerta y para generar medidas preventivas y terapéuticas para disminuir el bruxismo y los trastornos psicológicos asociados.

ABSTRACT: Bruxism corresponds to a parafunctional activity of dental tightening due to the action of masticatory muscles. Within the etiological factors of bruxism, there are emotional states such as anxiety, depression and stress situations, among others. Dental students, especially those who are in their clinical cycle, are subjected to high demand situations that generate states of depression, stress and anxiety. The aim of this study is to measure the prevalence of psychological disorders such as depression, anxiety and stress and bruxism in 4th and 5th year of dentistry students of the Pontificia Universidad Católica de Chile. Through the use of questionnaires and clinical examinations, using the questionnaire of the American Association of Sleep Medicine and the Depression-Anxiety and Stress Scale (DAS-21), it was determined that 62 % of the students presented bruxism, with predominance in women. All of the students that presented bruxism, manifested levels of depression, anxiety and stress. These numbers are important to consider as a warning signal and to generate preventive and therapeutic measures that contribute to the reduction of bruxism and associated psychological disorders.

The prevalence of bruxism and related factors in patients with multiple sclerosis: a comparative study / A prevalência do bruxismo e fatores relacionados em pacientes com esclerose múltipla: um estudo comparativo

ABSTRACT Objective: To determine the prevalence of bruxism and related factors in patients with multiple sclerosis (MS). Methods: Diagnosed with relapsing-remitting MS under the 2010-revised McDonald diagnostic criteria, 182 patients without MS exacerbations during the previous three months were included in the patient group, and 145 healthy individuals made up the control group in the study. Demographic data of the participants in both groups were determined. In the patient and control groups, the diagnosis of definite bruxism was made using the International Classification of Sleep Disorders (Diagnosis and Coding Manual, Second Edition). Results: Bruxism was found in 29.7% (n = 54) of the patients and in 12.4% (n = 18) of the controls, and the difference was statistically significant (p < 0.001). Of all patients, the onset of bruxism was found in 70.4% (n = 38) after the diagnosis and in 29.6% (n = 169) prior to the diagnosis of MS. Compared with those without bruxism, the mean age (p = 0.031) and the score of the Expanded Disability Status Scale (p = 0.001) were also significantly higher among MS patients with bruxism. Between MS patients with and without bruxism, no significant differences were found in terms of sex, marital status, educational status, employment, cigarette smoking, total number of exacerbations, number of exacerbations within the previous year, and drugs used. Conclusions: The frequency of bruxism was found to be higher in the patients with MS than in the controls. Bruxism is associated with age and the Expanded Disability Status Scale score in MS patients.

RESUMO Objetivo: Neste estudo, pretendeu-se determinar a prevalência de bruxismo e fatores relacionados em pacientes com esclerose múltipla (EM). Métodos: Diagnosticados com EM remitente recidivante sob os critérios de McDonald Diagnostic revisados em 2010, 182 pacientes sem ataques de EM durante os últimos três meses foram incluídos no grupo de pacientes, e 145 indivíduos saudáveis constituíram o grupo de controle no estudo. Os dados demográficos dos participantes dos dois grupos foram determinados. Nos grupos de pacientes e controle, o diagnóstico de bruxismo definitivo foi feito usando a Classificação Internacional de Distúrbios do Sono (1) (Manual de Diagnóstico e Codificação Segunda Edição). Resultados: O bruxismo foi detectado em 29,7% (n = 54) dos pacientes e observado dentro de 12,4% (n = 18) dos controles, e a diferença foi estatisticamente significante (p <0,001). De todos os pacientes, o tempo inicial de bruxismo foi encontrado em 70,4% (n = 38) após o diagnóstico e em 29,6% (n = 169) antes do diagnóstico. Em comparação com aqueles sem bruxismo, os níveis de idade média (p = 0,031) e o escore da Escala de Status de Incapacidade Expandida (p = 0,001) também foram significativamente maiores entre os pacientes com esclerose múltipla com bruxismo. Entre os pacientes com esclerose múltipla com e sem bruxismo, não foi encontrada diferença significativa em termos de sexo, estado civil, status educacional, emprego, tabagismo, número total de ataques, número de ataques no último ano e medicamentos utilizados. Conclusões: A freqüência de bruxismo foi maior em pacientes com esclerose múltipla do que nos controles. O bruxismo está associado à idade e ao escore da Escala de Status de Incapacidade Expandida (EDSS) em pacientes com EM.

Pre-operative parafunctional or dysfunctional oral habits are associated with the temporomandibular disorders after orthognathic surgery: An observational cohort study.

BACKGROUND: Temporomandibular disorders (TMDs) are frequent and disabling, and hence, preventing them is an important health issue. Combining orthodontic and surgical treatments for malocclusions has been shown to affect temporomandibular joint (TMJ) health. However, publications regarding the risk factors that predict negative TMJ outcomes after orthognathic surgery are scarce. OBJECTIVE: Present prospective cohort study was conducted to identify an association between pre-operative dysfunctional/parafunctional oral habits and the presence of TMD symptoms after orthognathic surgery. METHOD: We included 237 patients undergoing orthodontics and surgical treatment for malocclusions associated with dentofacial deformities within the Department of Oral and Maxillofacial Surgery of the University of Lille. Their parafunctional and dysfunctional oral habits were recorded through clinical examination along with the presence of TMD symptoms before and after the surgery. According to the Research Diagnostic Criteria for Temporomandibular Disorders (RDC/TMD) classification, the TMD symptoms studied were myalgia, arthralgia, disc displacement with or without reduction. RESULTS: Multivariate analysis revealed significant associations among bruxism (odds ratio [OR] 3.17 [1.066; 9.432]), lingual interposition (OR 4.241 [1.351; 13.313]), as well as primary swallowing (OR 3.54 [1.225; 10.234]) and the presence of postoperative symptoms of myalgia. Moreover, a significant association was observed between the presence of any dysfunctional oral habit and postoperative disc displacement with reduction (OR 4.611 [1.249; 17.021]). CONCLUSION: Bruxism and dysfunctional oral habits were shown to be risk factors for the presence of TMD symptoms also after combined orthodontic and surgical treatment. Treating such habits before orthognathic surgery should help prevent TMD.

Prevalencia de Bruxismo y Trastornos Temporomandibulares Asociados en una Población de Escolares de San Luis Potosí, México / Prevalence of Bruxism and Associated Temporomandibular Disorders in a Population of School Children of San Luis Potosí, México

RESUMEN: El término "Transtornos Temporomandibulares" (TTM) incluye numerosos problemas clínicos asociados con las articulaciones temporomandibulares, músculos de la masticación y otras estructuras asociadas. El bruxismo, un hábito oral parafuncional, consiste en rechinar o apretar de manera rítmica e involuntaria los dientes, lo que puede conducir a trauma oclusal y problemas articulares. El objetivo del estudio fue determinar la frecuencia y prevalencia de signos y síntomas de TTM y bruxismo en niños escolares de 6 a 12 años, en una población de San Luis Potosí, México. Se empleó un diseño transversal descriptivo en una muestra de 314 participantes, estudiantes de una escuela primaria de la ciudad de San Luis Potosí, México. Los participantes fueron seleccionados aleatoriamente en forma estratificada y polietápica. La muestra total consistió en 153 femeninos y 161 masculinos. Los signos y síntomas de TTM más frecuentes fueron la alteración de la función de la ATM (35 %), seguido por los ruidos y chasquido articulares (29,2 %). En los sujetos con diagnóstico de bruxismo, la alteración más frecuente fueron molestias asociadas en la ATM (19,4 %), dolor de cabeza (17,8 %) y atrición dental (16,5 %).

ABSTRACT: The term "Temporomandibular disorders" (TTM) includes numerous clinical problems associated with joint temporomandibular, muscles of mastication and other associated structures. Bruxism, oral parafunctional habit, consists of grinding or clenching of involuntary, rhythmic manner, which can lead to trauma, occlusal and problems joint. The objective of the study was to determine the frequency and prevalence of signs and symptoms of DTM and bruxism in school children aged 6 to 12, in a population of San Luis Potosí, México. A crosssectional descriptive design was used in a sample of 314 participants, students of a primary school in the city of San Luis Potosi, Mexico. The participants were randomly selected in tiered form and conglomerated. The total sample consisted of 153 female and male 161. The signs and symptoms of TMD frequent were alteration of the function of the ATM (35 %), followed by noise and snap joint (29.2 %). In subjects with a diagnosis of bruxism, the most frequent alteration was associated with TMJ discomfort (19.4 %), headache (17.8 %) and dental attrition (16.5 %).

Risk factors for bruxism

The aim of the present study was to summarize the risk factors for bruxism that were identified by a systematic search of the literature published between 2007 and 2016. Depending on the size of the odds ratios (ORs) and the lower limit of the 95% confidence intervals indicated by the reports, four risk categories were differentiated. Among others, emotional stress, consumption of tobacco, alcohol, or coffee, sleep apnea syndrome, and anxiety disorders were recognized as important factors among adults. In children and adolescents, apart from distress, behavioral abnormalities and sleep disturbances predominated. Knowledge of the identified risk factors may be useful when taking the medical history of bruxing patients. Although many of the described variables cannot be influenced by prophylactic or therapeutic means, we recommend the following patient-centered approach ("SMS therapy"): self-observation, muscle relaxation, stabilization (Michigan) splint.

Association between buccal mucosa ridging and oral or occlusal status among older people.

OBJECTIVES: This study aimed to evaluate the association between buccal mucosa ridging and oral or occlusal statuses among older people. SUBJECTS AND METHODS: This cross-sectional study examined 262 independent older people (mean age, 74.2 ± 5.9 years) who participated in the Kyoto Elderly Physical Fitness Measurement Research Project. The predictor variables were oral statuses (number of present teeth and torus palatinus, torus mandibularis, temporomandibular joint noise, clenching, or grinding) and oral functions (occlusal pressure, cheek pressure, oral diadochokinesis, and tongue pressure). The outcome variable was the buccal mucosa ridging status (presence or absence). Additional variables were age, sex, body mass index, grip strength, and wearing dentures. We compared these variables between participants with and without buccal mucosa ridging using a univariate analysis and multiple logistic regression analysis. RESULTS: Buccal mucosa ridging was present in 177 (67.6%) people. Multiple logistic regression analysis revealed a close association of buccal mucosa ridging with torus mandibularis, tooth clenching and grinding and occlusal pressure, and cheek pressure. CONCLUSIONS: Over 50% of the participants showed buccal mucosa ridging; this was significantly associated with higher cheek pressure, lower occlusal pressure, torus mandibularis, and tooth clenching and grinding.

Mouth Breathing and Prevalence of Sleep Bruxism among Preschoolers aged 2 to 5 years

Objective: To determine the prevalence of bruxism, associating it with mouth breathing in preschool children in Florianopolis, Brazil. Material and Methods: Clinical examination and questions to parents/guardians of 429 children aged 2-5 were conducted. The clinical examination was performed by three calibrated examiners to register the presence of tooth wear on incisors and molars. The questions were related to sleep bruxism (teeth grinding) and mouth breathing. For determinate diagnosis, were "possible" bruxism by the American Academy of Sleep Medicine and "probable" bruxism, whereas the Item Response Theory was employed for mouth breathing. To determine the associations, a Chi-square test and Fisher exact test with a standard error of 5% and 95% interval confidence were applied. Results: The clinical examination revealed bruxism in 8.2%, whereas the parental report revealed bruxism in 17.2%. When clinical examination was associated with the parent's report, bruxism was present in 2.1%. Among the non-clinical variables, the most prevalent changes included: child presenting a regular stuffy nose (19.6%), followed by child is always open-mouthed (16.1%). A significant statistical association between bruxism and age was obtained (p<0.05), the age group with prevalence of 4 and 5 years old with 68.9%. There was no mouth breathing association with the presence of bruxism (p>0.05). Conclusion: Bruxism was prevalent for children aged 4-5 and bruxism had no association with mouth breathing.

Lesiones cervicales no cariosas en pacientes del área de salud Eléctrico, municipio Arroyo Naranjo, 2015 / Non carious cervical lesions in patient of the area of health Electric, Arroyo Naranjo municipality, 2015

Introducción: las lesiones cervicales no cariosas son la pérdida patológica de la estructura dentaria localizada en el límite amelo-cementario, que no responden a un agente causal bacteriano. Teniendo en cuenta la incidencia de esta afección en la salud bucal, resulta una necesidad su estudio más detallado, que permita conocer mejor su comportamiento clínico-epidemiológico para favorecer su prevención y tratamiento de una forma más eficaz. Objetivo: determinar la distribución y características de lesiones cervicales no cariosas en pacientes pertenecientes al área de salud Eléctrico del municipio Arroyo Naranjo de la provincia La Habana. Métodos: se realizó una investigación descriptiva transversal en un total de 153 pacientes con lesiones cervicales no cariosas. Fue considerada una lesión cervical no cariosa cuando el paciente presentara alguna de las variantes erosión, abrasión y/o abfracción, o la combinación de estas. Se asumieron para la investigación otras variables como: sexo, edad, grupo de diente, localización y factores de riesgo. Se utilizó la prueba estadística de chi cuadrado para la asociación de variable. Resultados: predominaron el sexo masculino con 52,9 por ciento y el grupo de edad de 37 a 47 años con el 30,7 por ciento. Los premolares resultaron el grupo dentario más afectado con el 38,9 por ciento; se destacó al bruxismo y al cepillado traumático con el 43,8 por ciento y 35,3 por ciento respectivamente. Conclusiones: las lesiones cervicales no cariosas se manifestaron entre los 37 a 47 años, específicamente en los hombres, y afectaron fundamentalmente a los premolares superiores con un promedio de 4 dientes por paciente. El bruxismo y el cepillado traumático constituyeron los factores de riesgo que más se correspondieron con el desarrollo de este tipo de lesión no cariosa a nivel cervical del diente(AU)

Introduction: non-carious cervical lesions are the pathological loss of dental structure located in the amelocementum junction, which do not result from a bacterial causative agent. Given the incidence of this condition in the oral health, it is necessary to study it in detail in order to better know its clinical and epidemiological behavior and to prevent it and treat it more effectively. Objective: to determine the distribution and the characteristics of non-carious cervical lesions in patients from the Electrico health area in Arroyo Naranjo municipality in Havana province. Methods: a cross-sectional descriptive study was conducted on a sample of 153 patients with non-carious cervical lesions. The classification of a non-carious cervical lesion was considered when a patient presents with some of the variants called erosion, abrasion and/or abfraction, or their combination. Other variables were also taken for this study, that is, sex, age, tooth group, location and risk factors. The Chi square test was used for the association of variables. Results: in the study, males with 52.9 percent of the total number and the 37-47 year age group with 30.7 percent predominated. Premolars represented the most affected dental group with 38.9 percent; bruxism and harmful brushing were present in 43.8 percent and 35.3 percent of cases, respectively. Conclusions: non carious cervical lesions occur in the 37-47 age group, mainly in men and fundamentally affect upper premolars and 4 teeth per patient as average. Bruxism and harmful brushing were the most related risk factors to this type of non-carious lesion(AU)

Validity of three screening questions (3Q/TMD) in relation to the DC/TMD.

Temporomandibular disorders (TMD) are common but seem to be largely undetected within general dental care. To improve dentists' awareness of these symptoms, three screening questions (3Q/TMD) have been introduced. Our aim was to validate 3Q/TMD in relation to the diagnostic criteria for TMD (DC/TMD), while taking into account the severity level of the symptoms. The study population consisted of 7831 individuals 20-69 years old, who had their routine dental check-up at the Public Dental Health Service in Västerbotten, Sweden. All patients answered a health declaration, including the 3Q/TMD regarding frequent temporomandibular pain, pain on movement and catching/locking of the jaw. All 3Q-positives (at least one affirmative) were invited for examination in randomised order. For each 3Q-positive, a matched 3Q-negative was invited. In total, 152 3Q-positives and 148 3Q-negatives participated. At examination, participants answered 3Q/TMD a second time, before they were examined and diagnosed according to DC/TMD. To determine symptom's severity, the Graded Chronic Pain Scale and Jaw Functional Limitation Scale-20 (JFLS-20) were used. In total, 74% of 3Q-positives and 16% of 3Q-negatives met the criteria for DC/TMD pain or dysfunction (disc displacements with reduction and degenerative joint disorder were excluded). Fifty-five per cent of 3Q-positives had a TMD diagnosis and CPI score ≥3 or a JFLS-20 score ≥5, compared to 4% of 3Q-negatives. The results show that the 3Q/TMD is an applicable, cost-effective and valid tool for screening a general adult population to recognise patients in need of further TMD examination and management.

Análisis de trastornos temporomandibulares en niños de 10 a 15 años / An analysis of temporomandibular joint disorders in 10-to-15-year-old children

Objetivos: estimar la frecuencia y tipo de trastornos temporomandibulares (TTM) en niños y relacionarlos con edad, sexo, apretamiento dentario, bruxismo diurno y nocturno. Métodos: Pacientes de 10 a 15 años que concurrieron a la Cátedra Odontología Integral Niños, evaluados con el CDI/TTM por odontopediatras estandarizados (Kappa 0,88). Los registros fueron ingresados en una base de datos conformándose los siguientes grupos: sin TTM, con trastornos musculares (TM), con desplazamiento de discos (DD) y artralgias (A). Las variables analizadas fueron sexo, edad, apretamiento dentario, bruxismo diurno y nocturno, utilizando porcentajes y Odds ratio con intervalos de confianza (95%), medias, desvíos estándar y Test de Bonferroni. Resultados: Muestra constituida por 299 pacientes (12,65±1,74 años) correspondiendo el 54,51% al sexo femenino. Un 25,41% (20,56-30,76) presentaron TM (23,74%: dolor miofacial y 1,67% dolor miofacial con limitación de apertura); en el 21,07% (16.57- 26,15) se observó DD (15,71% con reducción, 5,01% sin reducción con apertura limitada y 0,33% sin reducción y sin limitación) y el 3,34% (1,6-6,07) reveló signos y síntomas de A. La edad mostró diferencias entre los grupos...

Objectives: to estimate the frequency and type of temporomandibular disorders (TMD) in children and determine their association with gender, age, teeth clenching, daytime and nocturnal bruxism. Methods: Standardized pediatric dentists (Kappa 0.88) evaluated with the RDC/TMD all patients aged 10 to 15 years who attended at the Pediatric Dentistry Department. Results of the questionnaire and clinical examination were loaded in a data base. Groups conformed were: without TMD, with muscle disorders (MD), displacement disk (DD), and arthralgia (A). Analyzed variables were: gender, age, teeth clenching, diurnal and nocturnal bruxism. Percentages and odds ratio with confidence interval (95%), means, standard deviation and Bonferroni Test were used for statistical analysis. Results: The sample was comprised of 299 patients (54.51% female) aged 12.65 ± 1.74. 25.41% (20.56-30.76) showed MD (23.74% myofacial pain and 1.67% myofacial pain with opening limitation); 21.07% (16.57-26.15) of children revealed DD, (15.71% displacement with reduction, 5.01% no reduction with limited opening and 0.33% no reduction and no limitation) and 3.34% (1.6-6.07) presented signs and symptoms of A. Age showed significant differences among the groups...

[Headache and functional symptoms]. / Cefalea y síntomas funcionales.

INTRODUCTION: Headaches are a common reason for visiting neurology clinics. They have their origin in a variety of causes and their specific diagnosis deteriorates as it overlaps with other chronic painful pathologies. Somatic functional syndromes are characterised by chronic painful conditions that have a negative effect on quality of life, and are accompanied by functional symptoms with no organic cause. AIMS: The aim of this study is to evaluate the prevalence of functional symptoms in patients who visited due to headaches. PATIENTS AND METHODS: The sample included all the patients who visited the walk-in neurology clinic because of headaches between March and September 2014. A semi-structured survey was carried out in order to evaluate obsessive personality traits, bruxism, gastrointestinal symptoms, anxiety, depression and sleep disorders. RESULTS: During the period under study, 125 patients visited due to headache. In all, 68.7% of patients with migraine presented functional symptoms and only 32.7% in the case of other headaches (p = 0.0001). CONCLUSIONS: Functional symptoms were prevalent in patients with headache, mainly in those with migraine.

TITLE: Cefalea y sintomas funcionales.Introduccion. Las cefaleas constituyen un motivo de consulta frecuente en los consultorios neurologicos, sus causas puede ser variadas y su diagnostico concreto se empobrece al superponerse con otras patologias dolorosas cronicas. Los sindromes funcionales somaticos se caracterizan por cuadros de dolor cronico que califican en forma negativa la calidad de vida, acompanados de sintomas funcionales sin causa organica. Objetivo. Evaluar la prevalencia de sintomas funcionales en pacientes que consultaron por cefaleas. Pacientes y metodos. Se incorporo a todos los pacientes que consultaron por cefaleas en el consultorio de demanda espontanea de neurologia entre marzo y septiembre de 2014. Se realizo una encuesta semiestructurada para evaluar rasgos de personalidad obsesiva, bruxismo, sintomas gastrointestinales, ansiedad, depresion y trastornos del sueno. Resultados. Durante el periodo de estudio, consultaron por cefalea 125 pacientes. El 68,7% de los pacientes con migrana presento sintomas funcionales, y solo el 32,7% de otras cefaleas (p = 0,0001). Conclusion. Los sintomas funcionales fueron prevalentes en los pacientes con cefalea, principalmente en las migranas.

Bruxism frequency and dental occlusion type in a group of Mexican adolescents / Frecuencia de bruxismo y tipo de oclusión dental en un grupo de adolescentes mexicanos

Bruxism is a parafunctional habit characterized by the relentless action of clenching and grinding teeth in an inappropriate way. It can be developed when dental occlusion is altered due to premature contacts between teeth and excursive occlusal interferences. These features can influence its frequency, intensity and duration. The objective of the study was to evaluate the frequency of the habit of bruxism and its relationship with the type of dental occlusion in a group of teenagers. A total of 278 teenagers enrolled in undergraduate level were examined. A questionnaire and an oral examination were conducted for the epidemiological survey. For this purpose, an examiner was previously standardized (malocclusion kappa=0.89, bruxism kappa=0.93). A 51.5 percent of the adolescents presented bruxism. It was more frequent in the category of the 17-year-olds, with no significant differences by sex. An 81.4 percent showed a type of dental malocclusion, of which 57.6 percent were cases of Class I malocclusion, 21.4 percent of Class II and 2.4 percent of Class III, without a relationship between bruxism and these categories of dental malocclusion. Conclusion. Bruxism frequency was high, with similar distribution by sex. No association with the type of dental occlusion or with dental malocclusion frequency was found.

El bruxismo es un hábito parafuncional que se caracteriza por la acción incesante de rechinar y apretar los dientes de manera inadecuada, el cual puede ser desarrollado cuando la oclusión dental se encuentra alterada debido a los contactos prematuros entre los dientes e interferencias oclusales excursivas, características que pueden influir en la frecuencia, intensidad y duración como es adoptado. El objetivo del estudio fue evaluar la frecuencia del hábito de bruxismo y su relación con el tipo de oclusión dental, en un grupo de adolescentes. Se examinaron un total de 278 adolescentes inscritos a nivel de bachillerato. Para la encuesta epidemiológica se aplicó un cuestionario y se realizó un examen bucal, para tal fin una examinadora fue previamente estandarizada (maloclusión kappa=0,89, bruxismo kappa=0,93). El 51,5 por ciento de los adolescentes presentó bruxismo, siendo más frecuente en la categoría de 17 años de edad, sin diferencias por sexo. El 81,4 por ciento mostró algún tipo de maloclusión dental, de los cuales, el 57,6 por ciento fueron casos de maloclusión Clase I, el 21,4 por ciento Clase II y el 2,4 por ciento Clase III, sin que se observara relación alguna entre el hábito del bruxismo con estas últimas categorías de maloclusión dental. La frecuencia de bruxismo fue alta, con distribución similar por sexo, sin que se observara asociación alguna con el tipo de oclusión dental, o bien, con la frecuencia de maloclusión dental.