Recommendations from Pediatric and Pediatric Dentistry Associations of the Americas Regarding Pacifier Use

ABSTRACT Objective: To identify online recommendations from pediatric and pediatric dentistry associations of the Americas regarding the pacifier habit. Material and Methods: A search was conducted on the associations' website (November/2021 to March/2023) to the questions: (1) Recommend using a pacifier?, (2) What care?, (3) Advantages and (4) disadvantages, (5) Ideal age, and (6) methods for habit removal. Results: Among the 36 American countries, 21 were represented on websites, social media, and official guides. The most significant portion of pediatric dentistry associations (23.81%) does not recommend the use of a pacifier if the infant is exclusively breastfeeding, and recommends avoiding the offer of a pacifier in the first days of life to facilitate the establishment of breastfeeding. Some pediatric (29.63%) associations suggested that use reduces the risk of sudden infant death syndrome. Most pediatric dentistry associations (85.71%) and some pediatric associations (22.22%) linked pacifier use to breastfeeding difficulties and the occurrence of orthodontics. Most of the 20 pediatric dentistry associations stated that the habit should be removed by a maximum of three years of age (90.48%). The most reported recommendations were behavior modification techniques and positive reinforcement. Conclusion: Most pediatric dentistry associations recommend the care and disadvantages of pacifiers and the ideal age to remove them. The few pediatric associations that provide information address indications, care, advantages and disadvantages of pacifiers, age, and methods for removing them.

Effect of oral hygiene in infants before dental eruption on Candida spp. colonization and the occurrence of oral candidiasis: A randomized clinical trial.

Background: To assess the influence of oral hygiene in infants before the primary tooth eruption on colonization by Candida spp. and the occurrence of oral candidiasis. Material and Methods: Fifty-six infants were randomly selected in their first 48 hours of life and allocated into 2 groups: Group I (Mothers were instructed to sanitize the oral cavity of the infant with gauze and filtered water once a day) and Group II (Mothers were instructed not to sanitize the oral cavity of the infant before the dental eruption). Data collection was performed one month after the birth of the infant, in their residence, including saliva collection for identification and quantification of Candida spp. Results: Colonization by Candida spp. species was found in 49.1% of the infants evaluated. There was no statistically significant difference between colonization by Candida spp. and intervention groups (p=0.947). 13.2% of the participants presented oral candidiasis during the first month of life, this prevalence was 15.4% in the control group and 11.1% in the intervention group, however, this difference was not significant (p=0.704). Conclusions: The Candida spp. colonization and the oral candidiasis occurrence, in the first month of the life of the infant, were not influenced by oral hygiene. Key words:Infants, oral hygiene, oral health, oral candidiasis.

The Impact of Socio-Environmental, Individual, and Biological Factors on Oral Health-Related Quality of Life among Preschool Children: A Cohort Study with 3-Year Follow-Up.

This study assessed impact of socio-environmental, individual, and biological factors on the worsening and severe worsening of oral health-related quality of life (OHRQoL) among preschoolers and their families. A cohort study was conducted in Diamantina, Brazil, with 151 children between 1 and 3 years of age and their mothers, who were evaluated at baseline (2014) and re-evaluated after 3 years (2017). The children were clinically examined to assess the presence of dental caries, malocclusion, dental trauma, and enamel defects. The mothers answered the Early Childhood Oral Health Impact Scale (B-ECOHIS) and a questionnaire addressing individual characteristics of the child and socio-environmental factors. Extensive caries found in the follow-up (relative risk [RR] = 1.91; 95% confidence interval [CI] = 1.26-2.91) and failure to undergo the dental treatment recommended at baseline (RR = 2.49; 95% CI = 1.62-3.81) were associated with worsening of OHRQoL over 3 years. An increase in the number of children in the household (RR = 2.95; 95% CI = 1.06-8.25), occurrence of extensive caries in the follow-up (RR = 2.06; 95% CI = 1.05-4.07), and failure to undergo the dental treatment recommended at baseline (RR = 3.68; 95% CI = 1.96-6.89) were associated with a severe worsening of OHRQoL. In conclusion, the risk of worsening and severe worsening of OHRQoL was higher in preschoolers with extensive caries at follow-up and among those who did not undergo dental treatment. Furthermore, severe worsening of OHRQoL was also impacted by an increase in the number of children in the household.

The relationship between temperament and dental fear and anxiety: a systematic review.

OBJECTIVE: To investigate the relationship between temperament traits and dental fear and anxiety (DFA) in children and adolescents by the means of a systematic review (PROSPERO #CRD42020207578). METHODS: The PEO (Population, Exposure, and Outcome) strategy was followed using children and adolescents as the population, temperament as the exposure, and DFA as the outcome. A systematic search for observational studies (cross-sectional, case-control, and cohort) without restrictions on year or language of publication was performed in seven databases (PubMed, Web of Science, Scopus, Lilacs, Embase, Cochrane, and PsycINFO) in September 2021. Grey literature search was performed in OpenGrey, Google Scholar, and in the reference list of included studies. Study selection, data extraction, and risk of bias assessment were carried out independently by two reviewers. The Fowkes and Fulton Critical Assessment Guideline was used to assess methodological quality of each study included. The GRADE approach was performed to determine the certainty of evidence of relationship between temperament traits. RESULTS: This study recovered 1362 articles, of which 12 were included. Despite the high heterogeneity of methodological aspects, qualitative synthesis by subgroups showed a positive association/correlation between emotionality, neuroticism, and shyness with DFA in children and adolescents. Different subgroups analysis showed similar results. Eight studies were classified as having low methodological quality. CONCLUSION: The main shortcoming of the included studies is the high risk of bias and a very low certainty of evidence. Within its limitations, children and adolescents with a temperament-like emotionality/neuroticism and shyness are more likely to present higher DFA.

Mothers' sense of coherence and oral health-related quality of life of preschoolers: a 3-year cohort study.

The aim of the present study was to assess whether mothers' sense of coherence (SOC) was a predictor of decline in oral health-related quality of life (OHRQoL) of preschoolers. A 3-year cohort study was conducted in Diamantina, Brazil. At baseline, 162 preschoolers aged one to three years were randomly selected from among children registered in local Primary Healthcare Units. In the first stage, mothers completed a sociodemographic questionnaire, the Brazilian version of the Early Childhood Oral Health Impact Scale (B-ECOHIS), and the Brazilian short version of the Sense of Coherence Scale (SOC-13). The total score obtained from the SOC-13 was used to select exposed and unexposed children. Clinical examinations were performed to detect the presence of dental caries, traumatic dental injury, and malocclusion. At follow-up, mothers completed the sociodemographic questionnaire and the B-ECOHIS again. The incidence of severe dental caries and adherence to the proposed treatment at baseline were evaluated. A decline in OHRQoL was considered if there was an increase in the B-ECOHIS score of at least one unit. The chi-square test and Poisson regression were performed. A total of 151 preschoolers participated in the study, among whom 37.7% showed a decline in OHRQoL. Mothers' SOC was not associated with a negative impact on OHRQoL (RR = 1.24; 95%CI = 0.81-1.88), while the incidence of severe dental caries had a greater impact on the decline in OHRQoL (RR = 2.02; 95%CI = 1.29-3.16). Mothers' low SOC was not a predictor of decline in the OHRQoL of preschoolers after a 3-year follow-up period.

Family income modifies the association between frequent sugar intake and dental caries.

AIM: The aim of this cross-sectional study was to investigate whether family income modifies associations between dental caries and sex, age, mother's education, type of preschool, sugar intake, and toothbrushing. BACKGROUND: Dental caries is a multifactorial dyanamic disease primarily mediated by biofilm and sugar. DESIGN: A randomly selected sample of 308 Brazilian preschool children aged 1-3 years underwent a clinical oral examination for the assessment of moderate/extensive dental caries using codes 3-6 of the International Caries Detection and Assessment System. Mothers were asked to fill out a form addressing the child's demographic and socioeconomic characteristics as well as the frequency of sugar intake. Statistical analysis involved descriptive statistics, the chi-squared test, and Poisson regression models. RESULTS: The prevalence of moderate/extensive dental caries was 42.5%. The adjusted model revealed that within low-income families (<2 times the monthly minimum wage), the prevalence of dental caries was higher among children with a high frequency of sugar intake (≥ twice per day) than in those with a low frequency of sugar intake (< twice a day) (RR = 1.79; CI: 1.38-2.33). In families with higher income (≥2 times the monthly wage), no significant association between sugar intake and dental caries was, however, found. CONCLUSIONS: In conclusion, monthly family income can modify the association between the high frequency of sugar intake and dental caries.

Association between asthma and oral conditions in children and adolescents: a systematic review with meta-analysis.

OBJECTIVE: To investigate the association between asthma and oral conditions in children and adolescents. MATERIAL AND METHODS: Observational studies that evaluated the association between asthma and oral conditions in children and/or adolescents were retrieved from five databases, grey literature and reference lists up to April 7th, 2022. Meta-analyses were performed, and I2 statistics were calculated. The mean difference was used as a measure of effect for continuous variables. Event frequencies were evaluated to determine odds ratios for dichotomous variables. Publication bias was investigated using Egger's test. The methodological quality (JBI) and certainty of the evidence (GRADE) were assessed. RESULTS: Forty-two studies were eligible, and sixteen were included in the meta-analysis. Mean dmft (MD: 1.11, 95%CI: 0.48-1.73), DMFT (MD: 1.01, 95% CI: 0.45-1.56), dmfs (MD: 3.62, 95%CI: 2.60-4.63) and DMFS (MD: 4.47, 95%CI: 0.98-7.96) indices were significantly higher in asthmatic children and adolescents compared to those without asthma. In the analysis of biofilm, asthmatic children and adolescents had a higher Plaque Index compared to those without asthma (MD: 0.18, 95%CI: 0.03-0.33). CONCLUSION: Asthmatic children and adolescents may be more likely to develop tooth decay and build up biofilm compared to those without asthma. It is suggested that there are no differences between asthmatic and non-asthmatic children and adolescents regarding gingivitis, developmental defects of enamel or erosive tooth wear. The certainty of the evidence was classified as 'very low'. CLINICAL RELEVANCE: Knowledge of the risks that asthma and asthma medications for oral health can assist in counselling families of children and adolescents with this condition in terms of control and prevention measures for oral problems.

Mothers' sense of coherence and oral health-related quality of life of preschoolers: a 3-year cohort study

Abstract The aim of the present study was to assess whether mothers' sense of coherence (SOC) was a predictor of decline in oral health-related quality of life (OHRQoL) of preschoolers. A 3-year cohort study was conducted in Diamantina, Brazil. At baseline, 162 preschoolers aged one to three years were randomly selected from among children registered in local Primary Healthcare Units. In the first stage, mothers completed a sociodemographic questionnaire, the Brazilian version of the Early Childhood Oral Health Impact Scale (B-ECOHIS), and the Brazilian short version of the Sense of Coherence Scale (SOC-13). The total score obtained from the SOC-13 was used to select exposed and unexposed children. Clinical examinations were performed to detect the presence of dental caries, traumatic dental injury, and malocclusion. At follow-up, mothers completed the sociodemographic questionnaire and the B-ECOHIS again. The incidence of severe dental caries and adherence to the proposed treatment at baseline were evaluated. A decline in OHRQoL was considered if there was an increase in the B-ECOHIS score of at least one unit. The chi-square test and Poisson regression were performed. A total of 151 preschoolers participated in the study, among whom 37.7% showed a decline in OHRQoL. Mothers' SOC was not associated with a negative impact on OHRQoL (RR = 1.24; 95%CI = 0.81-1.88), while the incidence of severe dental caries had a greater impact on the decline in OHRQoL (RR = 2.02; 95%CI = 1.29-3.16). Mothers' low SOC was not a predictor of decline in the OHRQoL of preschoolers after a 3-year follow-up period.

Prevalence of unsatisfactory dental restorations in posterior primary teeth and associated factors.

The aim of this study was to investigate the prevalence of unsatisfactory dental restorations on posterior primary teeth and associated factors in school children aged six to ten years. A cross-sectional study was conducted with children randomly selected from public schools in a small Brazilian town. Questionnaires were sent to the guardians addressing socioeconomic and behavioral aspects of the child. Oral examinations were performed at the schools to determine the quality of dental restorations, visible biofilm, and presence of moderate/extensive untreated caries (scores 3-6 ICDAS). This examination was performed by two previously trained and calibrated examiners. Associations were tested using multilevel logistic regression. Among the 400 children evaluated, 98 had restorations (217 teeth). The prevalence of unsatisfactory restorations was 34.6%. Restorations in amalgam were less likely to fail compared to those in glass ionomer cement (OR = 0.11; 95%CI: 0.02-0.49; p = 0.005). Children with moderate/extensive untreated caries were more likely to have unsatisfactory restorations (OR = 6.79; 95%CI: 2.20-20.93; p = 0.001). Children with a visible plaque index ≥ 20% were also more likely to have unsatisfactory restorations (OR = 2.28 95%CI: 1.05-4.92; p = 0.036). The prevalence of unsatisfactory restorations was high. The occurrence of this outcome was associated with restorative material, presence of caries, and visible plaque.

Association between different stages of dental caries in preschoolers and familial socioeconomic factors.

This study evaluated the association between socioeconomic factors and stages of dental caries in children one to five years of age. A cross-sectional study was conducted involving 759 children enrolled in preschools in Diamantina, Brazil. The parents/caregivers filled out a form addressing socioeconomic factors. Add to the end of this sentence: and categorized in caries free (code 0 and 1), no obvious decay (code 2 and 3) and obvious decay (code 4, 5 and 6). Statistical analysis was performed using the Mann-Whitney test and multinomial regression. The prevalence of "no obvious decay" was higher among children from families with a larger number of income-dependent individuals (OR: 2.47; 95%CI: 1.41-4.31). The higher prevalence of "obvious decay" was associated with the child's age (OR: 1.36; 95%CI: 1.16-1.58), attending a public preschool (OR: 2.38; 95%CI: 1.31-4.34), a larger number of income-dependent individuals (four to five individuals: OR: 1.71; 95%CI: 1.09-2.74; more than five individuals: OR: 3.41; 95%CI: 1.95-5.94), no access to a dentist (OR: 2.14; 95%CI: 1.48-3.09), and lower income (OR: 1.72; 95%CI: 1.19--2.49). It was concluded that the variable of a larger number of income-dependent individuals was associated with both no obvious decay and obvious decay. Child's age, type of preschool, access to a dentist, and income were associated with obvious decay.

Longitudinal evaluation of determinants of the clinical consequences of untreated dental caries in early childhood.

OBJECTIVES: This study aimed to evaluate whether the trajectory of family income, parental education and clinical variables are associated with the clinical consequences of untreated dental caries among children. METHODS: A prospective cohort study was conducted with 439 children between one and three years of age, evaluated at baseline and re-evaluated after three years. Sociodemographic and economic variables, untreated dental caries and biofilm were investigated both at baseline and at the 3-year follow-up. The pufa index (pulpal involvement, ulceration, fistula and abscess) was used to diagnose the clinical consequences of untreated dental caries. RESULTS: The prevalence of pufa ≥1 was 18.2% in the follow-up. The following variables were associated with a higher risk of clinical consequences of untreated dental caries: mother's low schooling level at baseline and follow-up (RR = 1.51; 95% CI: 1.04-2.18), incidence or baseline presence of biofilm (RR = 4.66; 95% CI: 2.02-10.74), cavitated dental caries at baseline (RR = 3.57; 95% CI:1.86 to 6.83) and incidence of cavitated dental caries (RR = 2.04; 95% CI: 1.24-3.35). CONCLUSION: Low maternal schooling level, biofilm, cavitated dental caries at baseline, and incidence of dental caries were the factors determining the consequences of untreated dental caries.

Association between different stages of dental caries in preschoolers and familial socioeconomic factors

Abstract: This study evaluated the association between socioeconomic factors and stages of dental caries in children one to five years of age. A cross-sectional study was conducted involving 759 children enrolled in preschools in Diamantina, Brazil. The parents/caregivers filled out a form addressing socioeconomic factors. Add to the end of this sentence: and categorized in caries free (code 0 and 1), no obvious decay (code 2 and 3) and obvious decay (code 4, 5 and 6). Statistical analysis was performed using the Mann-Whitney test and multinomial regression. The prevalence of "no obvious decay" was higher among children from families with a larger number of income-dependent individuals (OR: 2.47; 95%CI: 1.41-4.31). The higher prevalence of "obvious decay" was associated with the child's age (OR: 1.36; 95%CI: 1.16-1.58), attending a public preschool (OR: 2.38; 95%CI: 1.31-4.34), a larger number of income-dependent individuals (four to five individuals: OR: 1.71; 95%CI: 1.09-2.74; more than five individuals: OR: 3.41; 95%CI: 1.95-5.94), no access to a dentist (OR: 2.14; 95%CI: 1.48-3.09), and lower income (OR: 1.72; 95%CI: 1.19--2.49). It was concluded that the variable of a larger number of income-dependent individuals was associated with both no obvious decay and obvious decay. Child's age, type of preschool, access to a dentist, and income were associated with obvious decay.

Prevalence of unsatisfactory dental restorations in posterior primary teeth and associated factors

Abstract The aim of this study was to investigate the prevalence of unsatisfactory dental restorations on posterior primary teeth and associated factors in school children aged six to ten years. A cross-sectional study was conducted with children randomly selected from public schools in a small Brazilian town. Questionnaires were sent to the guardians addressing socioeconomic and behavioral aspects of the child. Oral examinations were performed at the schools to determine the quality of dental restorations, visible biofilm, and presence of moderate/extensive untreated caries (scores 3-6 ICDAS). This examination was performed by two previously trained and calibrated examiners. Associations were tested using multilevel logistic regression. Among the 400 children evaluated, 98 had restorations (217 teeth). The prevalence of unsatisfactory restorations was 34.6%. Restorations in amalgam were less likely to fail compared to those in glass ionomer cement (OR = 0.11; 95%CI: 0.02-0.49; p = 0.005). Children with moderate/extensive untreated caries were more likely to have unsatisfactory restorations (OR = 6.79; 95%CI: 2.20-20.93; p = 0.001). Children with a visible plaque index ≥ 20% were also more likely to have unsatisfactory restorations (OR = 2.28 95%CI: 1.05-4.92; p = 0.036). The prevalence of unsatisfactory restorations was high. The occurrence of this outcome was associated with restorative material, presence of caries, and visible plaque.

Avaliação comparativa entre terapia endodôntica convencional e técnica não instrumental: um relato de caso / Comparative evaluation between conventional endodontic therapy and a non-instrumental technique: a case report

Objetivo: A necrose da polpa dentária é uma complicação causada principalmente por cáries e lesões traumáticas. Não há consenso sobre a melhor técnica e materiais para o tratamento endodôntico na dentição decídua. O objetivo foi apresentar um relato de caso clínico em que foram realizadas diferentes abordagens endodônticas em dentes homólogos traumatizados e necróticos. Métodos: Um menino de um ano e oito meses sofreu traumatismo dento-alveolar após queda e procurou o projeto de extensão de traumatismos na dentição decídua da Faculdade de Odontologia da UFMG em outubro de 2018 para avaliação clínica e radiográfica. O incisivo central superior esquerdo apresentou fratura de esmalte e dentina sem exposição pulpar, enquanto o incisivo central superior direito apresentou luxação intrusiva leve. Ambos apresentaram o desenvolvimento de lesões periapicais. Resultados: Os dentes foram tratados respectivamente com a técnica não instrumental com pasta CTZ e com terapia endodôntica convencional com pasta Guedes-Pinto. Os acompanhamentos clínico e radiográfico após os tratamentos revelaram dentes assintomáticos e evidência de cicatrização periapical. Conclusão: O uso da pasta CTZ apresentou resultados satisfatórios e semelhantes à terapia tradicional em curto prazo no relato de caso apresentado.

Aim: Dental pulp necrosis is a complication caused mainly by dental caries and lesions. No consensus has been reached on the best technique and materials for endodontic treatment in the primary dentition. The objective was to present a clinical case report in which different endodontic approaches were performed in traumatized and necrotic homologous teeth. Methods: A one-year-and-eight-month-old boy suffered dentoalveolar trauma after a fall and sought out the Deciduous Trauma Dental Center of the Federal University of Minas Gerais in October 2018 for clinical and radiographic evaluation. The left maxillary central incisor presented enamel and dentin fracture without pulp exposure, while the right maxillary central incisor presented a small intrusive dislocation. Both presented the development of periapical lesions. Results: The teeth were treated respectively, using the non-instrumental technique with CTZ paste and the conventional endodontic therapy with Guedes-Pinto paste. Clinical and radiographic follow-ups after treatments revealed asymptomatic teeth and evidence of periapical healing. Conclusion: The use of CTZ paste in this case report presented satisfactory and similar results to traditional therapy in the short term.

Association of deleterious sucking habits with the occurrence of otitis in newborns, infants, preschool children, and children: a systematic review protocol.

OBJECTIVE: The objective of this review is to determine whether deleterious sucking habits contribute to otitis in newborns, infants, preschool children, and children. INTRODUCTION: Otitis is one of the most prevalent diseases in infants. Diverse studies have suggested that deleterious sucking habits, such as pacifier use, bottle-feeding, and finger-sucking, may be risk factors for the development of otitis in young individuals. INCLUSION CRITERIA: This systematic review will include observational studies in which the association between deleterious sucking habits and otitis was assessed in newborns, infants, preschool children, and children. Studies will compare caregiver reporting of sucking habits in this population to those with no deleterious sucking habits or those who exclusively breastfeed. The primary outcome will be the presence of otitis. METHODS: The searches will be carried out in six electronic databases, and gray literature will also be screened. A three-step search strategy will be used, with no date or language restrictions. Studies whose full text meets the eligibility criteria will be included in the systematic review. Study screening and selection, critical appraisal, and data extraction will be performed by two independent reviewers. The Grading of Recommendations, Assessment, Development and Evaluation approach will be used to assess the certainty of the evidence. Meta-analysis will be performed if there is relative homogeneity among included studies. SYSTEMATIC REVIEW REGISTRATION NUMBER: PROSPERO CRD42020197162.

Untreated dental caries and visible plaque of mothers are not determinant for the incidence of caries in dentin among children: evidence from a 3-year prospective cohort study.

OBJECTIVES: To evaluate whether characteristics related to mother's oral health, trajectory of family income, and maternal education are associated with the incidence of caries in dentin in preschool children. MATERIALS AND METHODS: One hundred fifty-eight mothers and their children were evaluated at baseline and re-evaluated after 3 years. Sociodemographic variables, dental caries, and biofilm of the mothers and children and daily sugar intake of the children were evaluated. Poisson regression was used to evaluate what factor represents risk for the incidence of caries in dentin at four to 6 years of age. RESULTS: The risk of the incidence of caries in dentin was 54% higher in children whose mothers had a low level of education at both baseline and follow-up. Children from families with an income lower at baseline and follow-up (RR 2.49; 95% CI 1.62-3.83) and those whose families experienced a reduction in income in this period (RR 2.05; 95% CI 1.29-3.26) had a greater risk of the incidence of caries in dentin. Moreover, children who increased their daily sugar intake (RR 1.67; 95% CI 1.09-2.52), those that maintained high sugar intake (RR 1.81; 95% CI 1.14-2.87), and those with cavitated caries at baseline (RR 1.53; 95% CI 1.19-1.97) had a greater risk of the incidence of caries in dentin. CONCLUSIONS: Low mother's education, a lower family income, a reduction in family income, a high frequency of daily sugar intake, and a history of cavitated caries were risk factors for the incidence of caries in dentin. CLINICAL RELEVANCE: The results could help in the targeting of improved prevention and control strategies for dental caries.

Influence of breastfeeding duration on the incidence of dental caries in preschoolers: a cohort study / Influência da duração da amamentação na incidência de cárie dentária em pré-escolares: um estudo de coorte

Abstract Objectives: investigate the association between breastfeeding duration and the incidence of severe caries in preschoolers. Methods: a cohort study was conducted with 132 pairs of mothers and children in the city of Diamantina, Brazil. Data collection was performed in 2 moments: when the children were between two and three years of age (baseline- 2013/2014) and after three years (T1-2016/2017). In both moments, children were evaluated for dental caries (International Caries Detection and Assessment System - ICDAS) and a questionnaire was administered to the mothers addressing socioeconomic aspects and thee habits of children. The outcome evaluated was the incidence of severe caries (Dentin caries - ICDAS Codes 5 and 6). Data analysis involved descriptive statistics, chi-squared test and Poisson hierarchical regression with robust variance. Results: children who breastfed for more than 24 months (RR = 2.24 CI95%= 1.23-4.08), those whose parents were separated (RR = 1.73 CI95%= 1.11-2.69), and those with estab-lished/severe caries (RR = 2.74 CI95%= 1.37-5.49) at baseline were at greater risk of incidence of severe caries after three years. Conclusion: breastfeeding for more than 24 months is a risk factor for incidence of severe caries. In addition, family structure and established or severe baseline caries were associated.

Resumo Objetivos: investigar a associação entre a duração da amamentação e a incidência de cárie grave em pré-escolares. Métodos: foi realizado um estudo de coorte com 132 pares de mães e crianças de Diamantina, Minas Gerais, Brasil. As crianças foram avaliadas em dois momentos: dois e três anos de idade (baseline-2013/2014) e após três anos (T1- 2016/2017). Dados socioeconómicos e relativos aos hábitos das criançasforam obtidos por meio de entrevistas com as mães e a presença de cárie dentária foi diagnosticada segundo o protocolo "International Caries Detection and Assessment System - ICDAS". O desfecho foi a incidência de cárie grave (cárie em dentina - códigos ICDAS 5 e 6). Para análise dos dados empregou-se regressão hierárquica de Poisson com variância robusta. Resultados: crianças que amamentaram por mais de 24 meses (RR = 2,24 IC95%= 1,234,08), cujos pais viviam separados no baseline (RR = 1,73 IC95%= 1,11-2,69) e aquelas com cárie estabelecida ou grave no baseline (RR = 2, 74 IC950%= 1,37-5,49) estavam em maior risco de incidência de cárie grave após 3 anos. Conclusão: a amamentação por mais de 24 meses foi um fator de risco para a incidência de cárie dentária grave em pré-escolares. Além disso, estrutura familiar e cárie estabelecida ou grave no baseline estiveram associados.

Impaction of mandibular third molars after orthodontic treatment by the edgewise method: a retrospective study.

This study aimed to determine the incidence of mandibular third molar (M3) impaction after orthodontic treatment by edgewise appliances, and identify possible determinant factors of M3 impaction. A retrospective cohort study was conducted with 1154 patients. Complete orthodontic records were analyzed pretreatment and posttreatment, considering the following variables: type of Angle malocclusion, treatment with or without extraction of first premolars, overbite, stage of dentition, M3 prior angulation and duration of orthodontic treatment. Impaction was determined after radiographic evidence of total closure of the root apex. The chi-square test and Poisson regression (p < 0.05) were used for statistical analysis with a hierarchical approach. Rate ratios (RR) and 95% confidence intervals (CI) were calculated. Mandibular M3 impaction incidence was 17%. Overbite equal to or greater than 4 mm (RR = 1.23, 95%CI: 1.11-1.26, p < 0.001), prior mesial angulation of M3 (RR = 0.59, 95%CI: 0.52-0.68, p < 0.001), non-extraction of first premolars (RR=1.06, 95%CI: 1.01-1.12, P=0.019) and orthodontic treatment time equal to or less than three years (RR = 0.94. 95%CI: 0.90-0.99, p < 0.014) were significantly associated with impacted M3. There was no correlation between the type of Angle malocclusion and the risk of impaction. In conclusion, the incidence of mandibular M3 impaction was considered low. The main pretreatment factors directly involved in impaction were mesioangulation of M3 and overbite equal to or greater than 4 mm. Orthodontic treatment with extraction of first premolars and treatment time greater than 3 years reduce the risk of impaction.

Impaction of mandibular third molars after orthodontic treatment by the edgewise method: a retrospective study

Abstract This study aimed to determine the incidence of mandibular third molar (M3) impaction after orthodontic treatment by edgewise appliances, and identify possible determinant factors of M3 impaction. A retrospective cohort study was conducted with 1154 patients. Complete orthodontic records were analyzed pretreatment and posttreatment, considering the following variables: type of Angle malocclusion, treatment with or without extraction of first premolars, overbite, stage of dentition, M3 prior angulation and duration of orthodontic treatment. Impaction was determined after radiographic evidence of total closure of the root apex. The chi-square test and Poisson regression (p < 0.05) were used for statistical analysis with a hierarchical approach. Rate ratios (RR) and 95% confidence intervals (CI) were calculated. Mandibular M3 impaction incidence was 17%. Overbite equal to or greater than 4 mm (RR = 1.23, 95%CI: 1.11-1.26, p < 0.001), prior mesial angulation of M3 (RR = 0.59, 95%CI: 0.52-0.68, p < 0.001), non-extraction of first premolars (RR=1.06, 95%CI: 1.01-1.12, P=0.019) and orthodontic treatment time equal to or less than three years (RR = 0.94. 95%CI: 0.90-0.99, p < 0.014) were significantly associated with impacted M3. There was no correlation between the type of Angle malocclusion and the risk of impaction. In conclusion, the incidence of mandibular M3 impaction was considered low. The main pretreatment factors directly involved in impaction were mesioangulation of M3 and overbite equal to or greater than 4 mm. Orthodontic treatment with extraction of first premolars and treatment time greater than 3 years reduce the risk of impaction.

Factors associated with dental pain in toddlers detected using the dental discomfort questionnaire.

BACKGROUND: Dental pain is one of the most common symptoms of untreated oral problems and exerts a strong impact on the well-being of children. AIMS: The aim of this study was to evaluate the associated factors with dental pain in children aged 1-3 years using the Brazilian version of the Dental Discomfort Questionnaire (DDQ-B). METHODS: A cross-sectional study was conducted in the city of Diamantina, Brazil. A total of 318 randomly selected children were submitted to an oral clinical examination for the evaluation of tooth injuries and dental caries (International Caries Detection and Assessment System, [ICDAS]). The caregivers of the children were asked to answer the DDQ-B as well as a questionnaire addressing demographic and socioeconomic aspects of the family. Statistical analysis was performed and involved the description of frequencies as well as Poisson hierarchical regression analysis. RESULTS: Dental pain was associated with a household income less than the Brazilian minimum monthly wage (Prevalence ratios [PRs] = 1.33, 95% confidence interval [CI]: 1.07-1.66, P = 0.011) and dental caries in dentin - ICDAS codes 5 and 6 (PR = 1.48, 95% CI: 1.13-1.94, P = 0.004). CONCLUSIONS: Greater frequencies of dental pain were found in 1-3-year-old children from families with a low monthly income and dental caries with visible dentin with or without pulp involvement.