The aim of the present study was to investigate the effect of dental caries experience and the components of the decayed, missing and filled teeth (DMFT) index on oral health-related quality of life (OHRQoL) among adolescents in southern Brazil. A cross-sectional study was conducted with 509 adolescents aged 11-14 years enrolled at public schools in the municipality of Osório (southern Brazil). A calibrated examiner performed the clinical examination for caries (World Health Organization: DMFT index), malocclusion (Dental Aesthetic Index) and traumatic dental injuries [Andreasen et al., 2007]. The participants answered the Brazilian version of the Child Perceptions Questionnaire (CPQ_11-14) - Impact Short Form, and their parents/guardians answered a structured questionnaire addressing demographic and socioeconomic characteristics. Data analysis involved Poisson regression with robust variance, with the calculation of rate ratios adjusted for potential confounding variables. High severity of dental caries experience exerted a significant impact on OHRQoL, even after controlling for socioeconomic and clinical factors (rate ratio 1.30; 95% confidence interval, CI 1.12-1.51). All OHRQoL domains were affected by untreated dental caries. The multivariate analysis demonstrated that the CPQ_11-14 scores were 33% higher among adolescents with untreated caries (rate ratio 1.33; 95% CI 1.17-1.50) and 24% higher among those with missing teeth (rate ratio 1.24; 95% CI 1.06-1.47). No difference in OHRQoL was found between adolescents with filled teeth and those without dental caries. In conclusion, dental caries experience, untreated dental caries and missing teeth exerted a negative impact on OHRQoL among the adolescents.

Objective: To assess the prevalence and factors associated with musculoskeletal pain in undergraduate health students. Method: A cross-sectional study was conducted with undergraduate students from a university in the south of Brazil between April and July 2017. The Brazilian version of the Standardized Nordic Questionnaire and a questionnaire for the characterization of students were used. Descriptive statistics, the chi-square test and Poisson regression were used for the analysis. Results: Participation of 792 undergraduate health students. The region of the vertebral column had a higher prevalence (74.9%) of musculoskeletal pain. The variables of female sex, age between 18 and 20 years, overweight, not having time for leisure, six or more daily hours of mobile phone use, having a clinical condition with medical diagnosis and attending the intermediate or final semesters of the course were associated with musculoskeletal pain. Conclusion: The high prevalence of musculoskeletal pain demonstrates the need for strategies aimed at preventing this aggravation still in the academic setting.

Objective:To analyze compliance with hand hygiene by healthcare professionals in an emergency department unit. Method: This is a longitudinal quantitative study developed in 2015 with healthcare professionals from a university hospital in the state of Rio Grande do Sul. Each professional was monitored three times by direct non-participant observation at WHO's five recommended moments in hand hygiene, taking the concepts of opportunity, indication and action into account. Descriptive and analytical statistics were used. Results: Fifty-nine healthcare professionals participated in the study. The compliance rate was 54.2%. Nurses and physiotherapists showed a compliance rate of 66.6% and resident physicians, 41.3%. When compliance was compared among professional categories, nurses showed greater compliance than resident physicians (OR=2.83, CI=95%:1.09-7.34). Conclusion: Hand hygiene compliance was low. Multidisciplinary approaches could be important strategies for forming partnerships to develop learning and implementation of hand hygiene practices. Hand hygiene compliance of healthcare professionals in an emergency department* Adesão dos profissionais de saúde à higienização das mãos em pronto-socorro Adhesión de los profesionales sanitarios a la higienización de las manos en servicio de urgencias DESCRIPTORS INTRODUCTIONHealthcare-related infections (HCRI) are adverse events that occur in healthcare services worldwide, even when broadly avoidable (1) . A study of the prevalence of HCRI, coordinated by the World Health Organization (WHO) in 55 hospitals in 14 countries in Asia, Europe, the Eastern Mediterranean and the Western Pacific revealed that on average 8.7% of patients experience infections during hospitalization (2) . In developed countries, HCRI rates ranged from 5% to 15% in hospitalized patients, and may have affected from 9% to 37% of patients admitted to intensive care units (ICUs) (2) . In 2004, the World Alliance for Patient Safety launched their First Global Challenge, with a central focus on HCRI prevention. In Brazil, the challenge was entitled "Clean Care is Safer Care." It was implemented in the biennium [2005][2006], aiming at promoting hand hygiene as a sensitive and effective method to prevent infections (2) . Even 10 years later, the proposal focused on patient safety, which points to hand hygiene as a simple and effective measure in the prevention of HCRI still has an impact on current clinical and care practices in different services (3) . Although scientific evidence points to a relationship between an increase in hand hygiene and reduction of HCRI rates, consistency and compliance rates remain low (4)(5) . There are efforts to increase this practice; however, the general rate of hand hygiene compliance has been around 40%, varying from 5% to 81% (6) . Scientific evidence has shown a compliance rate of 20% by ICU healthcare professionals (nurses, physicians and physiotherapists) (7)(8) , 29% in emergency rooms (9) , and 40% among medical students in open units (10) , confirmin...

Objectives: To investigate the association between malocclusion/dentofacial anomalies and dental caries among adolescents. Materials and Methods: A cross-sectional study was conducted with 509 adolescents aged 11 to 14 years enrolled at public schools in the city of Osó rio in southern Brazil. Parents/caregivers answered a structured questionnaire on demographic and socioeconomic variables. A trained examiner recorded the presence of malocclusion (Dental Aesthetic Index [DAI]), traumatic dental injury, and dental caries. Data analysis involved the chi-square, Mann-Whitney, and Kruskal-Wallis tests. Poisson regression with robust variance was used for the multivariable analysis. Results: A total of 44.8% of the adolescents had dental caries (mean DFMT 5 1.33 6 1.84). The DAI index ranged from 15 to 77 (mean 5 29.0 6 7.9); 43.6% of the sample had severe malocclusion and 11.6% had traumatic dental injury. The prevalence and severity of dental caries were significantly greater among adolescents with severe malocclusion. The multivariate analysis demonstrated that adolescents with severe or handicapping malocclusion had a 31% greater probability of having dental caries (prevalence ratio: 1.31; 95% CI: 1.02-1.67), independently of demographic, socioeconomic, or clinical aspects. The orthodontic characteristics associated with the occurrence and severity of caries were maxillary irregularity $3 mm (P 5 .021) and abnormal molar relationship (P 5 .021). Conclusions: Handicapping malocclusion, maxillary irregularity, and abnormal molar relationship were associated with the occurrence and severity of dental caries. The findings suggest that the prevention and treatment of these conditions can contribute to a reduction in dental caries among adolescents.

Purpose The purpose of this paper is to examine the relationship between sustainable operations practices (SOP) and performance. Design/methodology/approach This study was conducted through a systematic literature review followed by a meta-analysis of correlations. Findings In the results, 14 of the relationships examined showed a positive relationship and 12 the presence of moderators. The study findings indicate that contingency affects the relationship between SOPs and performance. Research limitations/implications The research presented in this paper is mainly limited to databases that were searched. Among the quantitative articles selected from the databases, many did not have the data needed to conduct the meta-analysis, which may have limited the results of this study. Practical implications Using the results of this study, practitioners can become aware of to the occurrence of moderating factors in the relationships, which can range from interference from other practices and variables to characteristics of the organization itself or the market in which organizations operate. Originality/value This study uses a multidimensional approach for both SOP and performance. This approach allowed a more complete and comprehensive result, showing how these SOPs influence the different categories of performance, expanding the understanding of the relationship between practices and performance.

This study investigated the effect of blood-contamination on the push-out bond strength of BiodentineTM (BD) and MTA Angelus® (MTA-A) to root dentin over time. Twenty-five teeth were sectioned horizontally to obtain 120 root slices. The lumens were filled with MTA-A or BD: 60 for each cement (30 uncontaminated and 30 blood contaminated). Push out bond strength to dentin was assessed at 24 h (n=10), 7 days (n=10) and 28 days (n=10). Failure modes were classified as: cohesive, adhesive or mixed failure. Two-way ANOVA was used to investigate the interaction between blood contamination vs. hydration period. Mann Whitney test compared different materials in each period, and it also compared the contaminated versus uncontaminated material for each period. Friedman, followed by Dunn`s test, compared periods of hydration for each material, regardless of blood contamination. Failure modes were reported descriptively. The interaction hydration period vs. blood contamination was highly significant for MTA-A (P=0.001) and it was not significant for BD (P=0.474). There were no differences between bond strength of uncontaminated and contaminated BD in any of the periods. Bond strength of uncontaminated MTA-A increased at each time of hydration; but it remained stable over time for blood-contaminated samples. BD had higher bond strength than MTA-A in all periods of hydration. Cohesive failure predominated. Only for MTA-A, the over time bond strength to dentin was affected by blood contamination.

Objectives: To investigate the association between malocclusion/dentofacial anomalies and dental caries among adolescents. Materials and Methods: A cross-sectional study was conducted with 509 adolescents aged 11 to 14 years enrolled at public schools in the city of Osó rio in southern Brazil. Parents/caregivers answered a structured questionnaire on demographic and socioeconomic variables. A trained examiner recorded the presence of malocclusion (Dental Aesthetic Index [DAI]), traumatic dental injury, and dental caries. Data analysis involved the chi-square, Mann-Whitney, and Kruskal-Wallis tests. Poisson regression with robust variance was used for the multivariable analysis. Results: A total of 44.8% of the adolescents had dental caries (mean DFMT 5 1.33 6 1.84). The DAI index ranged from 15 to 77 (mean 5 29.0 6 7.9); 43.6% of the sample had severe malocclusion and 11.6% had traumatic dental injury. The prevalence and severity of dental caries were significantly greater among adolescents with severe malocclusion. The multivariate analysis demonstrated that adolescents with severe or handicapping malocclusion had a 31% greater probability of having dental caries (prevalence ratio: 1.31; 95% CI: 1.02-1.67), independently of demographic, socioeconomic, or clinical aspects. The orthodontic characteristics associated with the occurrence and severity of caries were maxillary irregularity $3 mm (P 5 .021) and abnormal molar relationship (P 5 .021). Conclusions: Handicapping malocclusion, maxillary irregularity, and abnormal molar relationship were associated with the occurrence and severity of dental caries. The findings suggest that the prevention and treatment of these conditions can contribute to a reduction in dental caries among adolescents.

Objective To assess the level of nicotine dependence of smokers in a university dental clinic in southern Brazil using the Fagerström Test for Nicotine Dependence and identify those who would like to quit smoking. Methods Results The mean age of the smokers was 47.90 and most had had up to eight years of schooling, and had a family income of less than 1,000 Brazilian Reais. The degree of nicotine dependence was classified, by the mean, 4.45 ± 2.53 points (±SD). There was a significant correlation between nicotine dependence and the number of cigarettes smoked per day. ConclusionThe 1% sodium hypochlorite solution caused least damage to the denture structure, not leading to decrease of the superficial microhardness. Métodos Trata-se de um estudo transversal analítico, com amostragem probabilística, composta por 93 adultos de ambos os sexos. Utilizou-se o Teste de Fagerström para Dependência de Nicotina e as informações foram coletadas por quatro pesquisadores. Os dados foram analisados por meio de estatística descritiva e inferencial (Qui-quadrado), sendo empregado o nível de significância de 5%). ResultadosOs fumantes apresentaram média de idade de 47,90 anos, sendo que a maioria possui até ensino fundamental e renda familiar de 1000 reais. O grau de dependência nicotínica foi classificado, em média, como escore de 4,45 ± 2,53 pontos (± dp). Houve associação entre nível de dependência e número de cigarros fumados por dia. ConclusãoPode-se concluir que 36,6% da amostra apresentam dependência elevada ou muito elevada. Esse grupo pode necessitar de terapia medicamentosa para auxiliar na cessação do tabagismo, salientando-se a importância dos grupos de apoio com esse fim, uma vez que 95% da amostra gostaria de parar de fumar.