Brazilian oral research最新文献

The aim of this study was to analyze the trends and main characteristics of articles on resin infiltration (RI) in dentistry. The search was carried out in August 2023 on Web of Science. Two researchers selected the articles and excluded conference articles. The following data were extracted from the selected articles: citations, year and journal of publication, study design and theme, authorship and institutions, keywords, country and continent. Collaborative networks were generated using the software Vosviewer. Dimensions were consulted to measure altmetric data. Correlation between data was determined by the Sperman's test. A total of 351 articles were included. The number of citations ranged from 0 to 230. The articles were published between 2007 and 2023. The most prominent journal was Journal of Dentistry (n = 36). The majority were laboratory studies (n = 171) evaluating the performance of RI to mask white spot lesions (n = 248), mainly due to caries (n = 256). The country with the most articles was Brazil (n = 51), however the biggest highlight was Europe (n = 141). The most prominent author was Meyer-Luckel H (n = 33). Vosviewer indicated strong collaborations between authors. According to Dimensions, most citations were from Mendeley followed by X users. This study identified an emerging trend in research on RI in dentistry. Based on this review, most research interest in RI was from Europe, addressing the use of RI to arrest and mask white spot lesions. It is concluded that more intervention studies are needed and that Africa and Oceania have a low publication rate.

This study aimed to explore the prevalence of developmental defects of enamel (DDE) and dental caries in children with and without Down syndrome (DS) and evaluate potential associations between these conditions. This was a cross-sectional, exploratory, census-based study with children of both sexes aged 6 to 11 years. The sample consisted of 10 children diagnosed with DS and 61 without DS. Standardized forms and records of dmft/DMFT and modified developmental defects of enamel (mDDE) were used. Inter- and intraexaminer agreement was assessed, with an intraclass correlation coefficient (ICC) of 0.93 for DDE and 0.81 for caries. The data were tabulated using SPSS 20.0. Categorical variables were subjected to Pearson's chi-square test to identify significant associations (p = 0.05). The Kolmogorov-Smirnov test revealed a nonnormal distribution pattern of the data (p <0.001). Therefore, numerical variables were subjected to the Mann-Whitney test to verify statistically significant differences (p = 0.05). Among the 71 study participants, 43 (60.6%) were male, and 28 (39.4%) were female. Among them, 10 (14.1%) had DS, 42 (59.2%) had caries, and 19 (26.8%) had DDE, with demarcated opacity as the most common type of DDE. A significant association was identified between having DS and not having dental caries (p = 0.007) and between having DS and having DDE (p <0.001). Individuals with DS were found to have 9.8 times greater odds of having DDE (p = 0.018). Compared with normotypic children, children with DS had a greater prevalence of DDE and a lower prevalence of dental caries. Additionally, children without DS were more likely to have caries in the presence of DDE.

The prevalence of early childhood caries (ECC) tends to increase in the first 5 years of life as children grow, and those affected by ECC are likely to experience caries throughout their lives. ECC negatively impacts the oral health-related quality of life of both children and their families. Although controlling sugar intake and the use of fluoride are well-known methods for managing dental caries, preventive and therapeutic interventions alone have not been sufficient to prevent the development of new caries lesions. This review aims to explore why ECC continues to occur despite the oral health team having the necessary knowledge to prevent it. Based on current scientific evidence, this article highlights the need for the oral health team to consider additional factors, such as implementing oral health prevention programs in the first 450 days of life, enhancing caregivers' oral health literacy, creating a supportive environment, and engaging in upstream actions (teledentistry, implementation science, health policies development etc.) to effectively manage and prevent dental caries. Otherwise we would be educating and treating children and sending them back to the conditions that made them sick. By addressing these factors, it might be possible to improve long-term oral health outcomes for children and reduce the burden of ECC on children and their families.

[This corrects the article doi: 10.1590/1807-3107bor-2025.vol39.024].

This study evaluated the influence of socioeconomic factors, caregiver characteristics, and early feeding practices on sugar consumption frequency (FSC) during early childhood. Data were collected from dental records of children aged 1 to 5 years old, who were attended at CliBin®, including sex, age, skin color, income level, mother's age and years of education, primary caregiver, prior instructions on caries prevention, type of early feeding practices (breastfeeding/formula/mixed), exclusive breastfeeding (EB) up to 6 months, children's dental care and their consumption of sugar-sweetened beverages (SSB) and cookies/sugar (CS), with frequency classified as: never (2 points), ≤ 3 times/day (1 point) and > 3 times/day (0 points). The lower the median score the higher the FSC. Descriptive analysis, Kruskal-Wallis test, and ANOVA were applied considering p < 0.05. A total of 123 records were included. The children were predominantly male (56.1%), and brown (46.5%), with an average age of 2.1 (± 0.9) years. The mother was the primary caregiver (86.1%), with ≤ 30 years of age (52.0%), < 12 years of education (75.2%), and previously instructed on caries prevention (58.2%). Most children were breastfed (45.5%) for 23.2 (±9.7) months on average, received EB (87.1%), consumed SSB (87.6%) and CS (90.9%) 3 times/day. The total FSC mean score was 1.6 ± 0.9 (95%CI: 1.4-1.7). Children of younger mothers (≤ 30 years) had the lowest FSC scores (1.4 ± 0.9; 95%CI: 1.0-1.6; p=0.01). It was observed that among the factors studied, only mothers in the younger age range influenced high sugar consumption during early childhood.

Head and neck radiotherapy quantitatively and qualitatively compromises salivary flow, and salivary substitutes have the potential to alleviate the symptoms. This study aims to assess the effectiveness of two salivary substitutes in relieving symptoms of radiotherapy-induced xerostomia through a double-blind randomized controlled trial. Twenty-four patients were selected from a dental oncology clinic and randomly assigned to the over-the-counter or compounded mouthwash group. Each patient was instructed to rinse their oral cavity with the assigned solution three times a day for 30 days. Both participants and researchers were blinded to the product used during the trial. The impact of xerostomia was assessed using a numerical rating scale and validated questionnaires on oral health-related quality of life and xerostomia, administered before and after the intervention and subsequently compared. Both groups exhibited a statistically significant reduction in xerostomia symptoms. The studied salivary substitutes produced transient beneficial effects on complaints of radiotherapy-induced xerostomia.

This study aimed to analyze the factors associated with the perception among Brazilian dentists of the preventive or therapeutic use of sealants on permanent molars. A cross-sectional web-based survey was conducted with Brazilian dentists between July and October 2021 to examine their use of social media and gather data regarding sealant-related practices. A structured questionnaire was developed and applied to collect information on participants' professional profiles, clinical indications, materials, techniques, and perceptions of pit and fissure sealants. The study outcomes were the positive perception of sealant use as: (a) a preventive measure, or (b) a therapeutic approach to carious lesions. Responses were dichotomized into positive perception ("strongly agree" or "agree") and negative perception ("neither agree nor disagree," "disagree" or "strongly disagree"). Independent variables included sociodemographic, educational, professional, and technical characteristics. Multiple logistic regression models were used to analyze associations (p < 0.05). A total of 2,394 dentists participated in the study, 82.5% of whom had a positive perception of sealants for prevention, and 83.1%, for therapeutic purposes. A greater likelihood of positive perception of preventive sealant use was observed among educators, those employed in public health services, dentists who "always" performed sealant application, and those who used resin sealant, glass ionomer cement, or flowable resin. Conversely, professionals working in capital cities had a lower likelihood of a positive perception. Professionals from cities with populations exceeding 500,000 inhabitants, interior areas, or metropolitan regions were less likely to have a positive perception of therapeutic sealant use. However, those who used resin sealants, glass ionomer cement, or flowable resin were more likely to perceive sealants positively. In conclusion, the positive perception of sealant use for prevention was associated with educational, professional, and technical factors, whereas the positive perception of therapeutic use was associated with professional and technical factors.

The present in vitro study evaluated the effect of titanium dioxide nanotubes (nTiO2) incorporated into glass ionomer cement (GIC) on the growth and viability of Lactobacillus acidophilus (L. acidophilus). GIC (Ketac Molar EasyMix® = KM) was added to concentrations of 0%, 3%, 5%, 7% by weight of nTiO2 (20 nm in size). L. acidophilus strains (1x108 CFU/mL) were cultivated on GIC discs with or without the addition of nTiO2 for 1, 3 and 7 days, and the following parameters were evaluated: inhibition zone (mm) (n = 6); cell viability (Live/Dead) (n = 6); cell morphology (SEM) (15 KV, 2000X, n = 3). The data were submitted to ANOVA and the Tukey and Dunnett tests (α = 0.05). Regarding the agar diffusion test, there was no difference between GIC and the groups containing nTiO2 (p > 0.05). As for bacterial viability, the percentage of viable bacteria was lower for GIC+7% nTiO2 (p ≤ 0.05). There was no difference in the percentage of non-viable bacteria (p > 0.05). In addition, the morphology of L. acidophilus did not change in the presence of nTiO2. It can be concluded that the incorporation of titanium dioxide nanotubes into GIC, particularly at 5%, reduced L. acidophilus viability, and might hence interfere negatively with the initial colonization process of the bacterial biofilm.

This study aims to evaluate the mechanical properties of 3D printing resins for occlusal splints (OS) under different preservation conditions based on sleep duration. The study factors (n = 10) included material types: PriZma 3D Bio Splint (PZ), Cosmos Splint (CS), NightGuard Firm (NGF), and self-polymerizing acrylic resin (control group - CG); preservation: artificial saliva (S), natural water (W), 0.12% chlorhexidine (C), and Corega tabs (CTs); and evaluation times: T0 (24 h after fabrication) and 30 d after exposure. Further, the surface roughness (Ra), Knoop microhardness (KH), three-point flexural strength (FS), and flexural modulus (FM) were analyzed. In terms of the time and material, Tukey's test revealed no significant differences in Ra between the groups at 24 h. After 30 d, PZ showed significantly lower values than the other groups (p < 0.05). For the KH, NGF was significantly higher than that in all groups at 24 h (p < 0.05); after 30 d, the NGF decreased in W and C (p < 0.05), and the NGF and PZ exhibited elevated values in S and CT, respectively. The Kruskal-Wallis test and multiple comparisons showed that the PZ had a higher value at 24 h (p < 0.05). Post 30 d, all 3D-printing resins increased values in CT and S (p < 0.05), and the PZ decreased in the C and W (P < 0.05). Finally, the FM increased under all conditions. The preservation of S and CT partially enhanced the mechanical properties of the OS.

Environmental and systemic factors play a role in the development of hypomineralization characterized by demarcated opacities. This study aimed to investigate the prevalence, distribution, severity, and etiologic factors associated with hypomineralization in all primary teeth, hypomineralized second primary molars (HSPM) and evaluate its association with Molar Incisor Hypomineralization (MIH). A sample of 2,102 male and female Brazilian children aged 3 to 10 years exhibiting good general health was examined by 30 calibrated dentists using WHO probes and clinical mirrors, using the index proposed by Ghanim et al. Data were collected through clinical examinations and a questionnaire answered by mothers, addressing sociodemographic and prenatal, perinatal, and postnatal factors. Prevalence was assessed by calculating frequency, whereas etiologic factors were evaluated using univariate and multivariate Poisson logistic regression with robust adjustment. In addition, multivariate analysis was conducted using nonparametric resampling with Jacknife adjustment. The overall prevalence of hypomineralization in primary teeth was 18.5%, with second molars affected in 17% and canines in 6.7% of the cases, while other teeth were affected at lower rates. Exclusive breastfeeding for six months showed a protective effect against hypomineralization (p = 0.40). Children with HSPM were five times more likely to develop MIH, regardless of sex (OR: 4.92). Furthermore, lower family income increased the likelihood of MIH. In conclusion, hypomineralization in primary teeth is prevalent, exclusive breastfeeding for six months is associated with a lower prevalence of enamel defects, and children with primary dentition defects are at greater risk for similar conditions in their permanent teeth.