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Objective: To Determine whether possible sleep bruxism (PSB) is associated with daytime oral habits and sleep behavior in schoolchildren.Methods: A cross-sectional study was conducted with a representative sample of 8-to-10-year-old children (n = 544). The Sleep Behavior Questionnaire (SBQ) was administered to evaluate sleep behavior. Daytime oral habits were evaluated using the Nordic Orofacial Test-Screening.Results: The prevalence of PSB was 21% and was significantly higher in children with reports of awake bruxism (p < .001; PR = 2.76; 95% CI: 2.01-3.79), snoring (p < .001; PR = 1.93; 95% CI: 1.41-2.65), and sucking/biting the lips daily (p = .034; PR = 1.73; 95% CI: 1.08-2.78). No socioeconomic characteristics were associated with PSB in the final model.Conclusion: Possible sleep bruxism in schoolchildren is associated with possible awake bruxism, snoring, sleep fragmentation, and daytime sleepiness.

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OBJECTIVE: The parameters of orofacial dysfunction (OFD) in children can guide clinicians and researchers in the monitoring of deviations from normality. The aim for this study was to evaluate manifestation patterns and the prevalence of OFD in children. MATERIALS AND METHODS: A population-based cross-sectional study was conducted involving 531 schoolchildren (8-10 years old) in a small city in southern Brazil. OFD was evaluated using the Nordic Orofacial Test-Screening (NOT-S). Poisson multiple regression analysis with robust variance was used to estimate adjusted NOT-S rate ratios (ratio of arithmetic means) among the different categories of covariables and their respective 95% confidence interval (RR: 95%CI). RESULTS: The mean NOT-S score was 2.1 (SD 1.4, median: 2.0; range: 0-8). The majority of children (87.6%) had at least one domain of the scale affected. The most affected were Chewing and Swallowing (50.5%), Habits (41.4%) and Breathing (26.4%). NOT-S scores were lower among children from higher income families (RR = 0.73; 95% CI: 0.61-0.87) and higher among those with difficulty regarding access to dental services (RR = 1.14; 95% CI: 1.01-1.28), those with sleep bruxism (RR = 1.18; 95% CI: 1.04-1.32) and those with open bite (RR = 1.65; 95% CI: 1.42-1.93). CONCLUSIONS: The prevalence of OFD was high and both socioeconomic and clinical factors exerted an influence on NOT-S scores.

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OBJECTIVE: The aim of the present study was to assess the impact of orofacial dysfunction on oral health-related quality of life (OHRQoL) among Brazilian schoolchildren. MATERIAL AND METHODS: A population-based study was conducted with 531 children aged eight to 10 years at schools in the city of Campo Magro, Brazil. The Brazilian version of the Child Perceptions Questionnaire (CPQ8-10) was the outcome variable used to measure the impact on OHRQoL. The main independent variable was orofacial function, which was diagnosed using the Nordic Orofacial Test-Screening (NOT-S). Descriptive, bivariate and multiple Poisson regression analyses were performed using a multilevel approach, with the significance level set to 5%. RESULTS: The mean (±SD) total CPQ8-10 score was 13.95 ± 0.5. The multilevel Poisson regression model revealed that the mean CPQ8-10 score was higher among girls (RR: 1.38, 95% CI: 1.17-1.63; p < 0.001) than boys and that children from families with a higher income had lower CPQ8-10 scores (RR: 0.67, 95% CI: 0.51-0.88; p = 0.004) than those from families with a lower income. Children who sought dental care due to pain or factors other than prevention (RR: 1.41; 95% CI: 1.18-1.68), those with orofacial dysfunction (RR: 1.62; 95% CI: 1.30-2.02) and those with a history of traumatic dental injury (RR: 1.39; 95% CI: 1.15-1.69) also experienced a greater impact on OHRQoL. CONCLUSIONS: Schoolchildren with orofacial dysfunction experience a greater negative impact on OHRQoL.

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Aim: To evaluate the prevalence of intraoperative accidents associated with extraction of third molars and identify possible risk factors. Methods: Prospective study with patients undergoing third molar surgery by residents of the Oral and Maxillofacial Surgery Service at the Federal University of Parana. Epidemiological data were collected from preoperative evaluation forms. During the surgical procedure were evaluated the radiographic position classifications of all third molars removed, using methods such as osteotomy and/or tooth section, time for the procedure and occurrence of any complication. Results: The students extracted a total of 323 teeth. The mean surgical time was 45 min. Conclusions: The prevalence of intraoperative accidents during extraction of third molars was 6.19%. The most prevalent accident was maxillary tuberosity fracture, followed by hemorrhage. Age, positioning of the teeth and use of the techniques of osteotomy and tooth section are possible risk factors.

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Introdução: A osteotomia sagital dos ramos mandibulares é um dos procedimentos mais utilizados em cirurgia ortognática para a correção de deformidades mandibulares. Objetivo: Analisar a prevalência das complicações trans e pós-operatórias nos pacientes submetidos à osteotomia sagital dos ramos mandibulares. Materiais e Métodos: Foi realizada uma análise retrospectiva de prontuários de pacientes submetidos à cirurgia ortognática para avanço, recuo ou correção de laterognatismo mandibular no Serviço de Cirurgia e Traumatologia Buco-Maxilo-Faciais II da Universidade Federal do Paraná, durante seis anos. Os dados (gênero, idade e deformidade dentofacial apresentada) foram coletados e correlacionados com as complicações apresentadas, por meio de análise estatística (Teste de Fischer, de Mann Whitney e de Kruskal Wallis). Resultados: O gênero feminino foi predominante (69,6%). A mediana de idade foi de 23 anos (14-65). Não houve associação estatística entre o gênero e as complicações (p=0,269) e entre a idade e as complicações (p=0,071). De um total de 46 pacientes, 11 (23,9%) tiveram, ao menos, uma complicação associada. As complicações transoperatórias com maior prevalência foram os danos visíveis ao nervo alveolar inferior (n=6/13%) e as fraturas inadequadas dos segmentos ósseos (n=6/13%). A parestesia do nervo alveolar inferior foi a complicação pós-operatória mais frequente (n=6/13%). Não houve associação estatística entre as complicações e a deformidade dentofacial apresentada pelos pacientes (p=0,389). Conclusão: Um total de 23,9 % dos pacientes sofreu algum tipo de complicação. Não houve associação estatística entre as complicações e as variáveis analisadas.

Introduction: Bilateral sagittal split osteotomy of the mandibular ramus is one of the most common procedures used in orthognathic surgery for the correction of mandibular deformities. Objective: To assess the prevalence of intraoperative and postoperative complications in patients undergoing a sagittal split osteotomy of the mandibular rami. Material and Methods: A retrospective analysis was made of the medical records of patients undergoing orthognathic surgery for the advancement, retreat or correction of mandibularlaterognatism in the Oral and Maxillofacial Surgery Unit of the Federal University of Parana over a period of six years. Data (gender, age and dentofacial deformity presented) were collected and correlated with the complications by means of statistical analysis (Fischer, Mann Whitney and Kruskal Wallis tests). Results: Females were predominant (69.6%). The median age was 23 years (14-65). There were no statistical associations between gender and complications (p=0.269) or between age and complications (p=0.071). Of a total of 46 patients, 11 (23.9%) had at least one complication. The most prevalent intraoperative complications were visible damage to the inferior alveolar nerve (n= 6/13%) and inadequate fractures of the bone segments (n=6/13%). Inferior alveolar nerve paresthesia was the most frequent postoperative complication (n=6/13%). There were no statistical associations between complications and the dentofacial deformity presented by the patients (p=0.389). Conclusion: 23.9% of the patients suffered some type of complication. There were no statistical associations between complications and the variables analyzed.

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Introdução: As informações contidas na anamnese do paciente associadas à análise do exame radiográfico pré-operatório são de fundamental importância no planejamento da remoção cirúrgica dos terceiros molares. Objetivo: Analisar o perfil epidemiológico dos pacientes que foram submetidos à cirurgia para a remoção dos terceiros molares na Disciplina de Cirurgia e Traumatologia Buco-Maxilo-Faciais II da Universidade Federal do Paraná. Metodologia: Foram analisados os prontuários de todos os pacientes atendidos pela Disciplina durante o primeiro semestre de 2010. Na ficha cirúrgica, foram avaliados o gênero, a idade, a presença de alterações sistêmicas e as alergias medicamentosas. Também foram avaliadas as radiografias panorâmicas, a fim de determinar o posicionamento radiográfico dos terceiros molares a serem removidos, seguindo as classificações de Pell e Gregory e de Winter. Resultados: O gênero predominante foi o feminino (68, 8%), na faixa etária dos 21-30 anos. Observou-se que 26% da população relatavam algum tipo de alteração sistêmica. As discrasias sanguíneas, principalmente as anemias, seguidas de alterações no sistema cardiovascular, em especial a hipertensão, foram as alterações mais prevalentes. Neste estudo a presença de alterações sistêmicas em mulheres foi 2,15 vezes maior que a prevalência dessas mesmas alterações em homens (p=0,018). Também houve uma predominância dessas alterações no grupo etário dos 21 aos 30 anos de idade (p=0,036). O medicamento mais relatado pelos pacientes como causador de alergia foi a penicilina, seguida dos diclofenacos e da sulfa. Com relação ao posicionamento radiográfico, tanto os terceiros molares superiores quanto os inferiores, apresentaram-se, em sua maioria, com angulação vertical e classe A. Quanto ao espaço no arco, os terceiros molares inferiores estiveram com maior frequência na classe II. Não houve associação estatística entre o gênero e a posição radiográfica dos terceiros molares, ...

Introduction: The Information obtained in the history taking of the patient, in association with the analysis of the preoperative radiographic examination, is essential in planning the surgical removal of third molars. Objective: To analyze the epidemiological profile of patients submitted to surgical removal of third molars in the Department of Oral and Maxillofacial Surgery at the Federal University of Paraná. Methods: The records of all patients attended in the Department during the first semester of 2010 were evaluated. Gender, age, presence or absence of systemic diseases and drug allergies were analyzed on the basis of the surgical record card. Panoramic radiographs were evaluated by determining the position of third molars in accordance with the classifications of Pell and Gregory and Winter. Results: The predominant gender was female (68.8%) in the 21 to 30-year age group. It was observed that 26% of the population reported some kind of systemic alteration. There was a higher prevalence of systemic alterations in the group of blood dyscrasias, particularly anemias, followed by alterations in the cardiovascular system, especially hypertension. The prevalence of systemic alterations in women in this study is 2.15 times greater than their prevalence in men (p=0.018). There was also a statistic predominance of these alterations in the 21 to 30-year age group (p=0.036). The drug most often reported by patients as a cause of allergy was penicillin, followed by diclofenacs and sulfa. With respect to radiographic positioning, both upper and lower third molars exhibited mostly vertical angulation, class A. As regards the space in the arc, third molars were most frequently in class II. There were no statistical associations between gender and the radiographic position of third molars, except for the left upper third molars in relation to angulation (p=0.002) and depth in the arc (p=0.001). Conclusions: The female gender was predominant, ...