Self-perception of need to replace dentures and oral health-related quality of life: cross-sectional study nested in a Cohort in Southern Brazil

Aim: With the significant increase in life expectancy over the last decades, it is important to understand how oral health can impact the oral health-related quality of life of older adults. This study aimed to investigate the association between need to replace dentures and oral health-related quality of life (OHRQoL) among older adults belonging to a Cohort in southern Brazil. Methods: This cross-sectional study was conducted with data from the 2019 Pelotas Elderly Cohort. The OHRQoL was assessed using the GOHAI. Need to replace dentures was self-report using a question dichotomized into yes/no. In the statistical analysis, unadjusted and adjusted models estimate from linear regression models were calculated. The significance level adopted was 5%. Results: A total of 493 older adults were included. On the GOHAI questionnaire, the mean score was 32.74 (SD±0.16). Individuals considering need of prosthesis replacement were 47.89%. Report of need to replace dentures was associated to lowest mean on the GOHAI score (ß -1.14; 95%CI - 1.80; -0.478, and on the physical (ß -0.56; 95%CI - 0.94 -0.17) and psychosocial (ß -0.48; 95%CI - 0.74; -0.22) dimensions. Conclusion: Our findings highlight the importance of also considering subjective measures of oral health in the dental care of older adults, since reporting the need for denture replacement, regardless of the reason, was associated with a worse oral health-related quality of life, including physical and psychosocial aspects

Translation and Cross-Cultural Adaptation of the "Child Drawing: Hospital" (CD:H) Scale for Paediatric Dentistry in Brazil

Abstract Objective: To translate and perform the cross-cultural adaption of the CD:H scale for use in Paediatric Dentistry in Brazilian Portuguese language. Material and Methods: The translation and cross-cultural adaptation of the CD: H was carried out in four stages: 1) translation of the instrument; 2) reverse translation (back translation); 3) cross-cultural adaptation, and 4) face validation. Face validation consisted of the evaluation of 30 subjects from the target population. A pilot study was conducted with 15 children aged 5-10 years treated at a university dental clinic and their drawings were analysed by two dentists. Data were analysed using Stata 12.0. Results: In the face validation, most items were understood; however, some words were changed, and terms were included to identify the dental environment. Good reproducibility was obtained: inter-examiner reliability was 0.9647 and intra-examiner reliability was 0.9619 for examiner A and 0.8260 for examiner B. Conclusion: The Brazilian version of the CD:H scale is a useful tool for dentists, helping identify children's emotions and being enjoyable for them.

Factors associated with periodontal diseases in pregnancy: Findings of the 2015 Pelotas Birth Cohort Study

Abstract Although periodontal disease is common during pregnancy, little is known about socioeconomic, behavioral, or biological determinants related to clinically assessed periodontal condition during this period. We assessed the prevalence of periodontal disease and associated factors in pregnant women. This population-based survey used data used from the 2015 Pelotas Birth Cohort Study, Brazil. Pregnant women expected to give birth between December 2014 and May 2016 were interviewed and clinically examined by trained dentist, with periodontal measures collected in all teeth, six sites per tooth. Outcomes were periodontitis (using the 2012 Centers for Disease Control and Prevention and the American Academy of Periodontology criteria) and gingivitis (by the 2018 European Federation of Periodontology/ American Academy of Periodontology classification). Multivariate hierarchical Poisson regression was used to assess the associations between socioeconomic, systemic, and clinical oral factors and periodontal disease. A total of 2,474 pregnant women participated in the study. Prevalence of periodontitis and gingivitis was 14.63% and 21.67%, respectively. Lower educational level and calculus were associated with higher prevalence periodontitis and gingivitis (P<0.05). Smoking was also associated with periodontitis (P=0.05), and lower frequency of toothbrushing (P=0.005) with gingivitis. Periodontal disease, especially gingivitis, was prevalent in pregnant women and their determinants were socioeconomic, environmental, and clinical oral health factors.

Dental Fear/Anxiety in Children and Child Emotional and Behavioural Problems

ABSTRACT Objective: To investigate the association between emotional and behavioural problems and dental fear/anxiety (DFA) in children aged four to 12 years treated at a clinic in southern Brazil. Material and Methods: In this cross-sectional study where mother-child dyads were interviewed, emotional and behavioural problems were investigated using the Strengths and Difficulties Questionnaire (SDQ) (considering five subscales). Children's DFA was evaluated through the Venham Picture Test. For each SDQ subscale, Poisson regression model was explored. Prevalence ratios (PR) were estimated, considering a significant level of p ≤ 0.05. Results: Overall, 128 children participated in this study. Most children were female (54.7%) and aged between 7 and 9 years (39.8%). The prevalence of emotional problems was 47.7% and behavioural problems were 46.1%. The prevalence of DFA was 18.8%. Children with emotional problems had a 2.3 higher prevalence of DFA (95%CI 1.06-5.04). In general, behavioural problems were not associated with DFA (95%CI 0.84-3.34) only when conduct problems were considered (2.20; 95%CI 1.02-4.70). Conclusion: Children aged between 4 and 12 years who present emotional and conduct problems tend to show higher DFA.

Number of erupted teeth at the age of 12 and 24 months: a maternal report validation study

Aim: To verify the validity of maternal reports on the number of deciduous teeth erupted in their children. Methods: This cross-sectional study was performed with children enrolled in a Birth Cohort at the age of 12 months in the first stage and 24 months in the second stage. At both stages, children were clinically examined, and mothers reported the number of teeth of their children. Comparison between groups was performed using the Mann-Whitney non-paired Wilcoxon test. Level of agreement between two methods were estimated by the Observed Agreement, Weighted Kappa and Intraclass Correlation coefficients. Results: A total of 125 children were examined in the first stage, with mean number of reported teeth of 6.2. In the second stage, 149 children were examined, with mean number of reported teeth of 15.9. High level of agreement, kappa values and intraclass correlation coefficients were observed for both arches in both periods (p<0.001). Conclusions: Maternal report on the number of teeth erupted in children was reliable and valid. Thus, it seems to be a useful instrument for collecting data in population-based epidemiological studies targeting young children

Are maternal factors predictors of a child's first dental visit? A birth cohort study in Brazil

Abstract The purpose of this study was to investigate the association between maternal factors and dental visits of children within their first year of life. This study used data from the 2015 Pelotas Birth Cohort and included pregnant women and their children at 12 months of age, followed-up between May 2014 and December 2015. Socioeconomic and demographic data, information on the use of dental services during the last year, and information on dental fear were collected by interviewing the mothers. Information regarding dental caries and periodontal disease were collected during the mother's clinical examination. The date of each child's first visit to the dentist was recorded. Crude and adjusted Poisson regression models with robust variance were used. The sample comprised 2,287 mother-child dyads, of which 10.1% of children visited the dentist during the first year of life. Children whose mothers visited the dentist within the last year for preventive reasons (RR: 1.51; 95%CI: 1.12-2.03) or curative reasons (RR: 1.47; 95%CI: 1.08-2.01) were more likely to have visited the dentist during the first year of life compared to those whose mothers had not used dental services during this period. Maternal tooth loss was inversely associated with a child's visit to the dentist during the first year of life (RR: 0.69; 95%CI: 0.54-0.89). Considering the mother's history of using dental services, as well as their dental caries history, is necessary to understand and improve patterns of dental health care utilization and implement public oral health policies for young children.

Is professionally applied topical fluoride effective in treating incipient caries? A systematic review

Abstract The present systematic review aimed to investigate the effectiveness of professionally applied topical fluoride as therapeutic agent for incipient carious lesions in permanent teeth. Randomised clinical trials (RCTs) comparing the effectiveness of professionally applied topical fluoride (varnish or gel) with that of placebo, no intervention, and toothbrushing (control group) in the treatment of incipient carious lesions in permanent dentition were included. An electronic search was performed in the PubMed, Web of Science, Scopus, Virtual Health Library, Embase, and Cochrane databases, in the grey literature, and in clinical trials registered until January 2021. Two reviewers independently screened titles and abstracts and assessed the risk of bias using the Cochrane tool. The certainty of evidence was classified using GRADE. A total of 2,223 articles were screened using titles/abstracts. After full-text reading of the 22 selected studies, nine RCTs were included. Five RCTs found that topical fluoride may be effective in reversing incipient carious lesions in permanent teeth. Overall, five studies were classified as having a low risk of bias and four as having some concerns. Only descriptive analysis was performed because of the heterogeneity of the data. Studies comparing fluoride varnish with usual home care oral hygiene have demonstrated topical fluoride does not appear to be more effective in improving the appearance of incipient carious lesions. Therefore, usual home care oral hygiene with fluoride toothpaste may be sufficient to treat incipient carious lesions in permanent dentition. Further studies with greater methodological rigor are, however, required to reduce bias, to allow a meta-analysis, and to draw well-founded conclusions (CRD42019120406).

Are stress and symptoms of depression associated with halitosis? A cross-sectional study

Mood disorders such as stress and depression can promote alterations of several hormones Aim: The present study aimed to evaluate if symptoms of depression and stress are associated with halitosis. The hypothesis is that halitosis is associated with stress and depression symptoms. Methods: All university students' entrants in the Federal University of Pelotas (UFPel) were invited to participate. Self-reported halitosis was measured using a visual analog scale. Students were also asked about the presence of halitosis perceived by close individuals. The stress level was measured using a modified version of the Perceived Stress Scale and symptoms of depression were screened by Patient Health Questionnaire-2. Poisson Regression Models were performed. Results: Of a total of 2,058 students who participated in the study, only 16% of them have reported not having any degree of halitosis and 17.6% were informed of closed individuals having halitosis. After adjustments, stress and depression symptoms remained associated with halitosis selfreported. Individuals from the higher stressed quartile presented higher scores of halitosis (RR 1.37 CI95% [1.24­1.53]). Students who presented depressive symptoms showed higher scores of self-perceived halitosis (RR 1.20 CI95% [1.10­1.32]). When the association of stress and halitosis reported by close individuals was tested, symptoms of depression lost the association in the adjusted model, while individuals from the highest quartile from stress remained associated (PR 1.36 CI95% [1.02­1.81]). Conclusion: Halitosis was associated with stress even after control for oral health and socioeconomic variables

Medo odontológico e saúde bucal: avaliação transversal do ciclo do medo entre universitários brasileiros / Dental fear and oral health: cross-sectional evaluation of the cycle of dental fear theory among Brazilian undergraduate students

Objetivo: Avaliar a presença do medo odontológico em universitários brasileiros e observar se a teoria do ciclo vicioso do medo é identificada nesta população. Materiais e métodos: Foi realizado um estudo transversal com universitários ingressantes na Universidade Federal de Pelotas em 2016. Os dados sociodemográficos, medo odontológico, o uso de serviços odontológicos, a percepção de cárie e dor dentária foram coletados através de um questionário auto--administrado. A exposição do estudo foi medo odontológico, e os desfechos incluíram padrão de consulta odontológica, experiência de cárie e dor dentária e autopercepção de saúde bucal. Características sociodemográficas foram incluídas como fatores de confusão. Para testar a associação do medo odontológico com os desfechos, foram utilizados modelos de regressão de Poisson com variância robusta, a fim de estimar as Razões de Prevalência e Intervalos de Confiança. Resultados: Foram avaliados 2.014 universitários, dos quais 22.4% reportaram medo odontológico. Aqueles que reportaram medo odontológico apresentaram uma maior prevalência de não terem ido ao dentista no último ano e, entre os que consultaram, a visita ter sido motivada por dor/problema. Adicionalmente, ter medo aumentou a presença de cárie, dor dentária e autorrelato da saúde bucal negativa. Discussão: Os achados sugerem a presença do ciclo vicioso do medo nesta população de universitários do sul do Brasil. Conclusão: Evidenciou-se a associação entre a presença de medo odontológico e a menor procura por atendimento odontológico, a presença de cárie dentária, dor dentária e saúde bucal autorreportada negativa, corroborando com a teoria do ciclo do medo.

Aim: To evaluate the presence of dental fear among Brazilian undergraduate students and to observe whether the cycle of dental fear theory applies to this population. Materials and methods: A cross-sectional study were conducted with first year students of the Federal University of Pelotas, Brazil, in 2016. Sociodemographic data, dental fear, as well as the use of dental services and perception of caries and dental pain were collected through a self-administered questionnaire. The exposure was dental fear, and the outcomes included dental visit pattern, experience of dental caries and dental fear and self-rated oral health (SROH). Sociodemographic characteristics were included as aconfounding factor. To test the association between dental fear and the outcomes, Poisson regression models with robust variance were used, to estimate Prevalence Rations and Confidence Intervals. Results: 2,014 undergraduate students were evaluated and 22.4% of them reported dental fear. Those who reported dental fear had a higher prevalence of not visiting the dentist in the last year and, among those who visited, to have had only a pain/problem-oriented visit. Additionally, having fear increased the presence of dental caries, dental pain and negative SROH. Discussion: Our findings suggest the presence of the vicious cycle of dental fear in this population of undergraduate students in southern Brazil. Conclusion: This study provided evidence on the association between dental fear and the lower frequency of dental visit, dental caries, dental pain experience and negative SROH, corroborating with the cycle of dental fear theory.

Iniquidades socioeconômicas na saúde bucal de estudantes universitários do sul do Brasil / Socioeconomic inequities in the oral health of university students in southern Brazi

Objetivo: Identificar a magnitude da associação entre experiência de cárie dentária e autopercepção negativa de saúde bucal com determinantes socioeconômicos. Métodos: Estudo transversal realizado com dados de uma coorte prospectiva com os universitários ingressantes na Universidade Federal de Pelotas (UFPel) no ano de 2016. Os dados foram coletados por meio de questionário autoaplicável, incluindo características demográficas, socioeconômicas e psicossociais. Os desfechos do presente estudo foram a experiência de cárie autorrelatada (histórico de doença cárie) e autopercepção de saúde bucal (positiva versus negativa). Resultados: Um total de 3.237 alunos ingressou, dos quais 2.089 (64,5%) concordaram em participar do estudo. O modelo de regressão de Poisson mostrou que universitários com renda familiar de R$ 1001,00 a 5000,00 e R$ 5001,00 ou mais apresentaram, respectivamente, uma razão de prevalência (RP) 14% (RP = 0,86; IC95% 0,80-0,92) e 18% (RP = 0,82; IC95% 0,74 a 0,90) menor de experiência de cárie, assim como indivíduos cujas mães tinham ensino médio completo apresentaram uma prevalência 14% menor (RP = 0,86; IC95% 0,80 a 0,92) e ensino superior completo 19% (RP = 0,81; IC95% 0,75 a 0,87) menor de experiência de cárie, quando comparados aos grupos de referência. Na autopercepção de saúde bucal, os resultados para renda familiar de R$1001 a 5000,00 e R$ 5001 ou mais apresentaram, respectivamente, uma prevalência 23% (RP = 0,77; IC95% 0,64 a 0,91) e 43% (RP = 0,57; IC95% 0,45 a 0,72) menor de ter autopercepção de saúde bucal negativa e indivíduos cujas mães tinham ensino superior completo reportaram uma prevalência 21% menor de autopercepção de saúde bucal negativa quando comparados à referência (RP = 0,79; IC95% 0,66 a 0,97). Conclusões: Os achados do presente estudo confirmam que os indicadores socioeconômicos influenciam a experiência de cárie autorrelatada e a autopercepção de saúde bucal dos universitários.

Objective: To identify the magnitude of the association between dental caries experience and negative self-per-ception of oral health with socioeconomic determinants. Methods: Cross-sectional study conducted with data from a prospective cohort with university students entering the Federal University of Pelotas (UFPel) in 2016. Data were collected through a self-administered questionnaire, including demographic, socioeconomic and psychosocial characteristics. The outcomes of the present study were experience of self-reported caries (history of caries disease) and self-perceived oral health (positive versus negative). Results: A total of 3,237 students joined, of which 2,089 (64.5%) agreed to participate in the study. The Poisson regression model known that university students with an income of R$ 1001 to 5000.00 and R$ 5001 or more primary, respectively, a prevalence ratio (PR) 14% (PR = 0,86; 95%CI 0,80-0,92) and 18% (PR = 0,82; 95%CI 0,74 a 0,90) lower of caries experience, as well as individualizing mothers had completed high school prevalence a 14% (PR = 0,86; 95%CI 0,80 a 0,92) lower prevalence and complete higher education 19% (PR = 0,81; 95%CI 0,75 a 0,87) less caries experi-ence when compared to reference groups. In the self-perception of oral health, the results for income of R$ 1001 to 5000.00 and R$ 5001 or more dissipated, respectively, a 23% (PR = 0,77; 95%CI 0,64 a 0,91) and 43% (PR = 0,57; 95%CI 0,45 a 0,72) lower prevalence of having negative self-perception of oral health and qualified originating from complete higher education reported a 23% lower prevalence of negative self-perceived oral health when compared to the reference (PR = 0,79; 95%CI 0,66 a 0,97). Conclusions: The findings of the present study confirm that socioeconomic indicators influence the experience of caries and self-perceived oral health among university students

Efficacy of audiovisual distraction using eyeglasses during dental care: a randomized clinical trial

Abstract This randomized parallel-group control trial tested the efficacy of distraction using audiovisual eyeglasses (AVE) during dental procedures [NCT03902158]. Forty-four 6-9 year-old children with low/moderate anxiety and who needed restorative treatment or exodontia of the primary molars were randomly allocated into two groups: the AVE (experimental) and the conventional behavior management techniques (control) groups. Motion sensors were used to measure the participants' body movements. Dental visits were video recorded, and their pain levels and behavior were assessed using the Faces, Legs, Activity, Cry, and Consolability Behavioral Pain Assessment Scale and the Venham Behavioral Scale, respectively. Anxiety was assessed via heart rate measurements. After treatment, the children scored their pain using the Faces Pain Scale. Mann-Whitney U and chi-square tests were used to compare the groups. The mean score on the behavioral scale was 0.59 in the experimental group and 0.72 in the control group under local anesthesia (p = 0.73). During the procedure, the mean score was 0.41 in the experimental group and 1.32 in the control group (p = 0.07). The mean heart rate was similar in both groups (p = 0.47), but a significant increase during treatment was observed in the control group. There was no difference between the groups in terms of pain, behavior, and self-reported pain scores (p = 0.08). Children aged 6-7 who used the AVE had fewer wrist movements (435.6) than that of children in the control group (1170.4) (p = 0.04). The AVE achieved similar results to the basic behavior management techniques, with good acceptance by the children.

Ansiedade materna odontológica e experiência de cárie dentária em crianças de 7 a 13 anos de idade: um estudo transversal / Maternal dental anxiety and dental caries experience in children aged 7 to 13 years: a cross-sectional study

Objetivo: o objetivo deste estudo foi investigar se a ansiedade materna odontológica está associada à experiência de cárie dentária da criança. Métodos: este estudo transversal foi realizado com crianças entre 7 a 13 anos de idade. A coleta de dados consistiu na aplicação de um questionário às mães e exame clínico nas crianças. A ansiedade odontológica materna foi avaliada pela Modified Dental Anxiety Scale. A experiência de cárie dentária foi avaliada por meio do índice CPO-D/CEO-D. A análise multivariada, bruta e ajustada, foi realizada pelo teste de Regressão de Poisson com variância robusta para testar o efeito das variáveis independentes no desfecho (Razão de Prevalência, Intervalo de Confiança de 95%). Um nível de significância de 5% foi adotado. Resultados: participaram 85 díades mãe/criança. Em torno de 32% das mães apresentaram moderado/alto grau de ansiedade odontológica. A experiência de cárie foi associada à idade da criança (p = 0,001), à percepção materna da saúde bucal da criança (p = 0,017) e à ansiedade materna odontológica (p = 0,001). Após os ajustes, a ansiedade materna odontológica permaneceu associada à experiência de cárie da criança. Crianças filhas de mães ansiosas apresentaram 23% maior prevalência de experiência de cárie dentária quando comparadas aquelas crianças filhas de mães não ansiosas. Conclusão: em crianças de 7 a 13 anos de idade, a ansiedade materna odontológica foi associada à experiência de cárie da criança.(AU)

Aim: to investigate if maternal dental anxiety is associated eith dental caries experience in children. Methods: this cross-sectional study was performed in children aged 7-13 years. Data collection included in a questionnaire applied to mothers and in a clinical examination in children. Maternal dental anxiety was measured using the Modified Dental Anxiety Scale. Dental caries was assessed through dmft/DMFT Index. Multivariate analyses, crude and adjusted, using Poisson Regression model with robust variance in order to test asssociation between maternal dental anxiety and dental caries experience (Prevalence Ratio, 95% Confidence Interval). A significance level of 5% was adopted. Results: na overall of 85 dyades mothers/ children particpated. About 32% of mothers presented moderate/high level of dental anxiety. Dental caries was associated to child's age (p = 0,001), maternal perception abut oral health of children (p = 0,017) and to maternal dental anxiety (p = 0,001). After adjustments, maternal dental anxiety was associated to dental caries experience. Children from anxious mothers presented 23% higher prevalence of dental caries experience than those whose mothers did not present anxiety. Conclusion: in children aged 7 to 13 years, maternal dental anxiety was associated to dental caries experience.(AU)

Is obesity associated with tooth loss due to caries? A Cross-sectional study

Aim: To investigate the association between obesity, overweight, and tooth loss due to caries among university students of (Federal University of Pelotas) in southern Brazil. Methods: A cross-sectional study with all first-year students who regularly enrolled in the first semester of 2016 who were invited to respond to a self-administered questionnaire contain socioeconomic and demographic; psychosocial; oral health; behavioral questions. The body mass index (BMI) was calculated through the self-reported data of weight and height. The main outcome of the present study was determined by the person's that answer having had at least one tooth extracted due to caries. A Poisson regression using a backward stepwise procedure was performed. Two models were tested: i) including socioeconomic and behavioral variables; ii) without behavioral variables. Results: From 3,237 eligible students, 2,089 (64.5%) participated in the present study. Almost 23% of students presented overweight and 8.4% obesity, whereas 362 individuals (17.5%) reported having had at least one tooth extracted due to caries. Regarding the final model adjusted by behavioral variables, it was observed that obese university students presented a 32.0% higher prevalence of tooth loss (PR=0.32,CI95%[1.17­1.49]). However, overweight was not associated with tooth loss in the present sample. When the model was not associated with behavioral variables, overweight was associated with tooth loss (PR=1.44; CI95%[1.15­1.81]), just as obesity (PR=2.13; CI95%[1.63 ­ 2.78]). Conclusions: Obesity and overweight were associated with tooth loss due to caries in the present sample of university students

Association of Dental Anxiety with Psychosocial Characteristics among Children Aged 7-13 Years

Abstract Objective: To identify psychosocial characteristics associated with dental anxiety in children aged 7-13 years in the dental setting. Material and Methods: This cross-sectional study was conducted with children aged 7-13 years attended at the Dentistry School of Pelotas, Brazil. Data collection was based on a questionnaire administered to mothers and children, and the behavior of children during dental treatment was evaluated using the Frankl' Scale. Data were analyzed using Chi-square and Fisher's exact tests in order to analyze the association between independent variables and dental anxiety. The effect of variables on the outcome was assessed by the Poisson regression model with robust variance (Prevalence Ratio; 95% Confidence interval). Results: A total of 187 children were included. Dental anxiety prevalence was 40.11%. After adjustments, younger children (p=0.046), only child (p=0.019), and children with negative previous dental experience (p=0.046) showed higher dental anxiety prevalence. Children with uncooperative behavior in previous (p=0.033) and current (p≤0.001) dental appointments showed higher dental anxiety prevalence. Conclusion: In this sample of children treated at a dentistry school, a report of dental anxiety was associated with age, birth order, previous dental experience and behavior in dental settings.

Methods and logistics of an oral health cohort of university students from Pelotas, a Brazilian Southern city

Aim: This paper aimed to describe the methodological aspects in the baseline of university students' cohort in a public university in southern Brazil. Methods: A multidisciplinary study was carried out assessing the psychosocial and oral health conditions of university students at the Federal University of Pelotas (UFPel). All new university students who have entered in in UFPel in the first semester of 2016 year were invited to participate. Two self-administered questionnaires were applied in classrooms. Descriptive analysis was performed using Stata 14.0. Results: A total of 3,237 students were eligible. Of these, 2,089 (64.5%) signed the consent form to participate of the study and answered the general questionnaires, and 2,052 (63.4%) students answered the confidential questionnaire. Refuses represented only 1.4% (n=29) of the total sample. Overall, most of the sample was female (52.2%), with age ranging from 18 to 24 years (66.1%), with white skin color (74.1%) and with mothers with educational level at university course (32.4%). A total, 62% reported a family income between 1001.00 and 5000.00 BRL, while only 16.3% reported being from low-income family (≤ 1000.00 BRL). The UFPel offers 63 classroom-based courses classified in nine areas of knowledge. The Applied Social Sciences area comprised 19% of the sample followed by the Linguistics, Letters and Arts (17%) area and the Health sciences area (13%). Conclusion: To the knowledge of researchers, this was the first cohort study of university students in the South of Brazil including more than two thousand participants. This paper described strategies adopted to optimize and to allow data collection in the baseline and in the next follow-ups

Desire of university students for esthetic treatment and tooth bleaching: a cross-sectional study

Aim: The aim of this study was to investigate the prevalence of the desire of university students for esthetic treatment and tooth bleaching, and associated factors. Methods: A cross-sectional study was performed in 2016 with first-semester university students in Pelotas. Data was collected via a self-administered questionnaire including demographic, socioeconomic and psychosocial characteristics. Oral Impact on Daily Performance (OIDP) was assessed and Poisson regression models were used to evaluate the association between the following outcomes: prevalence of desire for esthetic treatment and the tooth bleaching, and exposure variables. A p-value of ≤ 0.05 was considered significant. Results: A total of 2,058 students participated in the study. Refusals represented a mere 1.4% of the total sample. Of the individuals interviewed, 16.1% underwent tooth bleaching and 74.4% reported a desire for esthetic dental treatment. Models showed students with higher family income and with the intention to use private dental services had 65% and 47% higher prevalence of tooth bleaching, respectively. Individuals satisfied with dental color and appearance exhibited a higher prevalence of tooth bleaching, as did those who smoked. On the other hand, students satisfied with dental color (PR= 0.77, 95% CI: 0.73-0.80) and with their dental appearance (PR= 0.82, 95% CI 0.78-0.87) demonstrated less desire to undergo esthetic dental treatment. Moreover, individuals who suffered some impact in OIDP reported a greater desire for esthetic treatment (PR= 1.07, 95% CI: 1.02-1.13). Conclusion: General and psychosocial characteristics were associated with the desire for esthetic treatment and tooth bleaching in university students

Accuracy of partial protocol to assess prevalence and factors associated with dental caries in schoolchildren between 8-12 years of age / Acurácia de um protocolo parcial para avaliar a prevalência da cárie dentária e fatores associados em escolares entre 8 e 12 anos de idade / Precisión del protocolo parcial para evaluar la prevalencia y factores asociados a la caries dental en escolares entre 8 y 12 años de edad

Abstract: The aim of this study was to test accuracy and reliability of a partial protocol (PP) of oral examination involving the permanent first molars. This cross-sectional study was carried out in two stages. First, a cross-sectional study was performed in a representative sample of 1,211 children using DMFT-index in a full-mouth protocol (FM). A PP was simulated from FM data using only data from the permanent first molars. A second part was performed with 202 children examined by a gold standard examiner (FM) and three dentists using the PP to assess its reliability. Accuracy of PP was assessed by sensitivity/specificity/predictive positive and negative values. Inter-examiner reliability in comparison with gold standard examiner was assessed using weighted kappa. The prevalence of dental caries observed using DMFT index was 32.4% and was 30.2% for PP . The PP presented high sensitivity (93.1%; 95%CI: 91.5-94.5), showing similar magnitude of association's measures for all associated factors investigated. When compared with the gold standard FM examination, all examiners obtained high parameters of sensitivity and specificity (around 90%). Predictive negative values were higher than predictive positive values for the examiners. This study showed that this partial protocol involving the permanent first molars is accurate and reliable as a screening tool to assess dental caries prevalence and associated factors in schoolchildren.

Resumo: O estudo teve como objetivo testar a acurácia e a confiabilidade de um protocolo parcial (PP) para exame oral, envolvendo os primeiros molares permanentes. O estudo transversal foi realizado em duas etapas. Primeiro, foi feito um estudo transversal em uma amostra representativa de 1.211 crianças, usando o índice CPOD com um protocolo de boca completa (BC). O PP foi simulado a partir de dados de BC, usando apenas os dados dos primeiros molares permanentes. A segunda etapa foi realizada em 202 crianças examinadas por um examinador de padrão de ouro (BC) e três odontólogos usando o PP para avaliar a confiabilidade do mesmo. A acurácia do PP foi avaliada pela sensibilidade, especificidade e valores preditivos positivos e negativos. A confiabilidade inter- examinador, comparada com o examinador de padrão de ouro, foi avaliada através do índice kappa ponderado. A prevalência de cárie dentária, medida pelo índice CPOD, foi 32,4%, comparado com 30,2% para o PP. O PP apresentou sensibilidade alta (93,1%; IC95%: 91,5-94,5), com magnitude semelhante nas medidas de associação dos fatores investigados. Quando comparados com o exame de BC (padrão de ouro), todos os examinadores obtiveram níveis altos de sensibilidade e especificidade (em torno de 90%). Os valores preditivos negativos foram mais altos do que os valores preditivos positivos para os examinadores. O estudo mostrou que o protocolo parcial envolvendo os primeiros molares permanentes é acurado e confiável enquanto ferramenta de triagem para avaliar a prevalência de cárie dentária e fatores associados em escolares.

Resumen: El objetivo de este estudio fue probar la precisión y fiabilidad de un protocolo parcial (PP) de exámenes orales, incluyendo los primeros molares permanentes. Este estudio transversal se llevó a cabo en dos etapas. En primer lugar, se desarrolló un estudio transversal con una muestra representativa de 1.211 niños, usando el DMFT-index en un protocolo para toda la boca (FM por sus siglas en inglés). El PP se simuló con datos del FM, usando solo información de los primeros molares permanentes. La segunda parte se realizó con 202 niños examinados por un examinador ideal (FM) y tres dentistas, usando el PP para evaluar su fiabilidad. La precisión del PP se evaluaron por sensibilidad/especificidad/valores predictivos positivos y negativos. La fiabilidad interexaminadores, en comparación con el examinador ideal, fue evaluada usando un índice kappa ponderado. La prevalencia de caries dental observada, usando el índice DMFT fue de un 32,4% y un 30,2% respecto al PP. El PP presentó una alta sensibilidad (93,1%; IC95%: 91,5-94,5), mostrando una magnitud similar de medidas de asociación para todos los factores asociados investigados. Cuando se comparó con el estándar ideal de examen para la FM, todos los examinadores obtuvieron parámetros altos de sensibilidad y especificidad (sobre un 90%). Los valores predictivos negativos eran más altos que los valores predictivos positivos para los examinadores. Este estudio mostró que este protocolo parcial, incluyendo los primeros molares permanentes, es preciso y fiable como herramienta de detección para evaluar la prevalencia de caries dental y sus factores asociados en niños con edad escolar.

Behavior of Children Submitted to Tooth Extraction: Influence of Maternal and Child Psychosocial Characteristics

Objective: To assess the child's behavior during primary tooth extractions, taking into account child's psychosocial and demographic factors and maternal characteristics. Material and Methods: An observational cross-sectional study involving children aged 7-13 years attending at the dental clinics of the School of Dentistry, Federal University of Pelotas. Children who underwent primary tooth extraction under local anesthesia and accompanied by their mothers were included. Data collection consisted of a questionnaire applied to mothers, assessment of child's behavior (Frankl Scale) and record of the presence of the mother. Data were analyzed using Stata 12.0 software. Descriptive analysis of the variables of interest and the Chi-square and Fisher Exact tests were performed to investigate the effect of independent variables on the outcome. The association between independent variables and the outcome was observed by crude and adjusted multivariate analysis by Poisson Regression (prevalence ratio). A 5% significance level was adopted. Results: Of 333 children evaluated, 124 were included in this study. Most were female (54.5%) aged 7-10 years (65.8%). The adjusted multivariate analysis, maternal dental anxiety and presence of the mother were the variables that remained associated with the child's behavior. Conclusion: This study suggests that presence of the mother and maternal dental anxiety negatively affect the behavior of children aged 7-13 years during primary tooth extraction.

Crown-Root Fractures in Primary Teeth: A Case Series Study of 28 Cases

Abstract Crown-root fractures in primary teeth are rare, with a wide variation of patterns that make diagnosis and treatment difficult. The aim of this study was to present a case series of crown-root fractures in primary teeth of children who attended a reference center. The study followed 28 cases of crown-root fractures in 26 children, representing 4% of the total number of attendees over 11 years of reference service at the Universidade Federal de Pelotas, Pelotas, Brazil. In most cases, the maxillary central incisors (85.7%) were involved. In the crown, 57.1% of the cases had a simple line of fracture, and 42.9% had multiple lines. Simple lines predominated in the root (89.3%). In cases with simple fracture lines in the crown, 37.6% underwent a total extraction, 31.2% required a partial extraction and 31.2% underwent pulpectomy. In most teeth with multiple lines of fractures in the crown, total extraction was performed (91.7%) All cases were followed-up until the eruption of the permanent successor tooth, and all patients had favorable outcomes.

Resumo Fraturas coronorradiculares em dentes decíduos são raras, com uma ampla variação de padrões que dificultam o diagnóstico e tratamento. O objetivo deste estudo foi apresentar uma série de casos de fraturas coronorradiculares na dentição decídua de crianças atendidas em um centro de referência. O estudo acompanhou 28 casos de fratura coronorradicular em 26 crianças, representando 4% do número total de participantes ao longo de 11 anos no serviço de referência na Universidade Federal de Pelotas. Na maioria dos casos, o incisivo central superior (85,7%) foi o mais envolvido. Na coroa, 57,1% dos casos tiveram linha de fratura simples, e 42,9% tiveram múltiplas linhas. As linhas simples predominaram na raiz (89,3%). Nos casos com linhas de fratura simples na coroa, 37,6% foram submetidos à extração total, 31,2% necessitaram de extração parcial e 31,2% de pulpectomia. A maioria dos dentes com múltiplas linhas de fratura na coroa, a extração total foi realizada (91,7%). Todos os casos foram acompanhados até a erupção do dente permanente sucessor, e todos os pacientes tiveram resultados favoráveis.

Experience of Dental Caries and Use of Continuous Medication in Children with Neuropsychomotor Disorders

Objective: To identify the relation between the use of continuous medication by children with neuropsychomotor disorders and the development of the dental caries disease. Material and Methods: The data were obtained from medical and dental records of children, who were assisted in an extension project of the Dentistry School of the Federal University of Pelotas. Socio-economic variables, the disability diagnosis, the type and frequency of the continuous medication, and the dental caries experience registered in the dental record were collected. The data were evaluated by double typing, analyzed by descriptive statistics, and the associations were tested by the Qui-squared, Fisher exact, Mann-Whitney, and Kruskal-Wallis tests. The Stata Statistical Software, version 12.0, was utilized considering the level of significance of 5%. Results: 119 records were evaluated, and the results were distributed by age bracket due to the high age range. Undoubtedly, the cerebral palsy was the most prevalent (33.9%). From the total of the children, 68.8% were using continuous medication, and the majority (56%) uses medication there are more than 24 months. The anticonvulsants were the most used medications (33.8%), and 96.5% of the children used medication during the nocturnal period. Half of the utilized medications presented sucrose in its composition. Conclusion: A statistically significant association between the use of continuous medication, containing sucrose, and the dental caries experience were not observed, what suggests that other risk factors contribute to the disease installation.