Brazilian oral research最新文献_第10页

Cross-cultural adaptation of the eHealth Literacy Scale for Brazilian adolescents. 针对巴西青少年的电子健康素养量表的跨文化改编。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0094

Mariane Carolina Faria Barbosa, Ana Luiza Peres Baldiotti, Maria Luisa Leandro de Souza Dias, Ana Flávia Granville-Garcia, Saul Martins Paiva, Fernanda de Morais Ferreira

{"title":"Cross-cultural adaptation of the eHealth Literacy Scale for Brazilian adolescents.","authors":"Mariane Carolina Faria Barbosa, Ana Luiza Peres Baldiotti, Maria Luisa Leandro de Souza Dias, Ana Flávia Granville-Garcia, Saul Martins Paiva, Fernanda de Morais Ferreira","doi":"10.1590/1807-3107bor-2024.vol38.0094","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0094","url":null,"abstract":"The aim of this study was to undertake a cross-cultural adaptation of the eHealth Literacy Scale (eHEALS) instrument to measure digital health literacy of Brazilian adolescents. eHEALS is a scale consisting of 8 items that measure self-perception related to the consumption of electronic health information. This is a methodological study of cross-cultural adaptation, conducted out from February 2022 to June 2022. The following steps were carried out: a) assessment and adequacy of cultural equivalence by a committee of experts; b) back-translation; c) synthesis of back-translations; d) cognitive testing with 42 Brazilian adolescents, using cognitive interviews with probing questions. All items that were difficult to understand were adapted to the (language) context of Brazilian adolescents. Cronbach's alpha coefficient for eHEALS-BrA was 0.81 and, if one of the items were excluded from the instrument, it ranged from 0.75-0.81. This version of the eHEALS proved to be culturally well-adapted to the context of Brazilian adolescents, and has the potential to measure digital health literacy in this population after having its validation confirmed through psychometric analyses.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e094"},"PeriodicalIF":1.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441821/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel low shrinkage dimethacrylate monomer as an alternative to BisGMA for adhesive and resin-based composite applications. 一种新型低收缩二甲基丙烯酸酯单体，可替代 BisGMA 用于粘合剂和树脂基复合材料应用。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0097

Fernanda Sandes de Lucena, Matthew Logan, Steven Lewis, Neil Deatherage, Adilson Yoshio Furuse, Carmem Silvia Pfeifer

{"title":"A novel low shrinkage dimethacrylate monomer as an alternative to BisGMA for adhesive and resin-based composite applications.","authors":"Fernanda Sandes de Lucena, Matthew Logan, Steven Lewis, Neil Deatherage, Adilson Yoshio Furuse, Carmem Silvia Pfeifer","doi":"10.1590/1807-3107bor-2024.vol38.0097","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0097","url":null,"abstract":"The aim of this study was to develop a mixture of dimethacrylate isomers (PG6EMA) as a potential monomer for dental adhesives and composites. PG6EMA was synthesized de novo and characterized in the presence of ethanol (3%, 6% or 9%). BisGMA/TEGDMA (BTEG, 50/50 wt.%) was used as the resin control. Composites were formulated with 60 wt.% of either PG6EMA or BisGMA (40 wt.% TEGDMA and 70 wt.% filler). DMPA (0.2 wt.%) and DPI-PF6 (0.4 wt.%) were added as photoinitiators, irradiated with a mercury arc lamp (320-500 nm, 500 mW/cm2; Acticure). All materials were tested for polymerization kinetics (near-infrared), viscosity (η) and storage modulus (G', oscillatory rheometry). The composites were further characterized for water sorption/solubility, wet/dry flexural strength/modulus and polymerization stress. Data were analyzed with one-way ANOVA/Tukey's test (α = 0.05). The PG6EMA resins showed lower rates of polymerization compared with BTEG (p = 0.001) but high degrees of conversion (p = 0.002). Solvent concentration did not affect RPMAX but the 6% and 9% mixtures showed higher final DC, likely due to reduced viscosity. PG6EMA had much higher viscosity than BTEG (p <0.001) and lower G' (p = 0.003). Composites modified with PG6EMA have slower polymerization rates (p = 0.001) but higher final DC (p = 0.04) than the control. PG6EMA/TEGDMA showed lower dry/wet flexural strength and comparable dry modulus. The PG6EMA/TEGDMA composite showed a 18.4% polymerization stress reduction compared to the BTEG composite. Both base monomers had similar WS/SL and G'. Within its limitations, this study demonstrated that the newly synthesized PG6EMA was a viable alternative to BisGMA in dental composites.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e097"},"PeriodicalIF":1.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441822/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prevalence of pulp canal obliteration after traumatic dental injuries: a systematic review and meta-analysis. 牙齿外伤后牙髓腔阻塞的发生率：系统回顾和荟萃分析。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-30 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0092

Mariana Gouvêa Latini Abreu, Thaís de Oliveira Fernandes, Leonardo Santos Antunes, Lívia Azeredo Alves Antunes, Lucianne Cople Maia de Faria

{"title":"Prevalence of pulp canal obliteration after traumatic dental injuries: a systematic review and meta-analysis.","authors":"Mariana Gouvêa Latini Abreu, Thaís de Oliveira Fernandes, Leonardo Santos Antunes, Lívia Azeredo Alves Antunes, Lucianne Cople Maia de Faria","doi":"10.1590/1807-3107bor-2024.vol38.0092","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0092","url":null,"abstract":"This systematic review aimed to answer the following question: What is the estimated prevalence of pulp canal obliteration in subtypes of traumatic dental injury (TDI) in deciduous and permanent teeth? The searches were conducted in PubMed, Embase, Scopus, Web of Science, LILACS, Grey Literature, and Google Scholar, and complemented by a manual search, until April 16th, 2023. Observational studies were selected based on population, exposure, and outcome (PEO) (P, deciduous or permanent teeth; E, TDI; O, pulp canal obliteration). Two reviewers (kappa 0.90) applied the eligibility criteria, extracted qualitative data, and assessed the methodological quality using the Newcastle-Ottawa tool. A meta-analysis was performed using MedCalc 17.2. Thirty-four articles were selected after screening. The methodological quality was moderate to high. The estimated prevalence of pulp canal obliteration was 27.6% (95%CI: 18.7-37.7) and 21.9% (95%CI:16.0-28.4), for permanent and deciduous teeth, respectively. Considering the TDI subtypes, the prevalence of pulp canal obliteration was higher in root fractures of the permanent teeth (78.6 %, 95%CI: 62.8-90.9) and lateral luxation injuries in deciduous teeth (29.4%, 95%CI:19.1-41.0). Our review of 34 articles of moderate and high methodological quality found that the prevalence of pulpal canal obliteration ranges from 21.9% to 27.6%. Pulp canal obliteration was most frequently detected following lateral luxation injuries of the deciduous teeth and root fractures of the permanent teeth (PROSPERO CRD42020179438).","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e092"},"PeriodicalIF":1.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11441825/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364456","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Discrimination due to sexual orientation and oral health-related quality of life among adolescents. 青少年因性取向而受到的歧视与口腔健康相关的生活质量。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0085

Bruno Emmanuelli, Jessica Klöckner Knorst, Orlando Luiz do Amaral-Júnior, Maria Laura Braccini Fagundes, Jessye Melgarejo do Amaral Giordani, Thiago Machado Ardenghi

{"title":"Discrimination due to sexual orientation and oral health-related quality of life among adolescents.","authors":"Bruno Emmanuelli, Jessica Klöckner Knorst, Orlando Luiz do Amaral-Júnior, Maria Laura Braccini Fagundes, Jessye Melgarejo do Amaral Giordani, Thiago Machado Ardenghi","doi":"10.1590/1807-3107bor-2024.vol38.0085","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0085","url":null,"abstract":"To evaluate the association between discrimination based on sexual orientation and oral health-related quality of life (OHRQoL) in adolescents. This was a cross-sectional study nested in a cohort performed in southern Brazil. The baseline assessment was carried out in 2010 with a sample of preschoolers (1 to 5 years). Subsequently, these individuals were reassessed, and for the present study, only the data from the final follow-up in 2020 were considered. OHRQoL was assessed by the short version of the Child Perceptions Questionnaire 11-14 (CPQ11-14). The discrimination due to sexual orientation was measured using item 10 of the Olweus Bully/Victim Questionnaire. Sociodemographic (sex, age, skin color, maternal education, household income) psychosocial (sense of coherence), and clinical variables (untreated dental caries) were also evaluated. Multilevel Poisson regression analysis was performed to verify the associations. Results are present as rate ratio (RR) and 95% confidence interval (95% CI). A total of 429 adolescents were evaluated - about 67.1% of those assessed at baseline. The prevalence of discrimination due to sexual orientation was 3.3%. Adolescents who reported suffering episodes of discrimination due to sexual orientation presented overall CPQ11-14 scores 16% higher (RR 1.16, 95%CI 1.01-1.36) than their counterparts. Adolescents who reported suffering episodes of discrimination due to sexual orientation presented poorer OHRQoL.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e085"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404854/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors associated with dental students' mental health during the COVID-19 pandemic: a longitudinal study. COVID-19大流行期间与牙科学生心理健康相关的因素：一项纵向研究。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0090

Andréa Neiva da Silva, Mario Vianna Vettore

{"title":"Factors associated with dental students' mental health during the COVID-19 pandemic: a longitudinal study.","authors":"Andréa Neiva da Silva, Mario Vianna Vettore","doi":"10.1590/1807-3107bor-2024.vol38.0090","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0090","url":null,"abstract":"The aim of the present study was to examine the relationships between gender, sense of coherence (SOC), social support, perception of academic environment and mental health of dental students during the coronavirus disease 2019 (COVID-19) pandemic. A longitudinal study involving 65 undergraduates enrolled from the first to sixth semesters in the bachelor dental course of Universidade Federal Fluminense, Brazil, was conducted. Baseline data (2018) included age, gender, SOC, social support, stress control and perception of education environment. Depression, anxiety and stress were assessed at baseline (response rate: 93%) and two-year follow-up (2020; response rate: 37%). Structural Equation Modelling was used to test the relationships between independent variables and depression, anxiety and stress during COVID-19 pandemic. Lower social support (β = -0.15), lower stress control (β = -0.20) and lower SOC (β = -0.39) were directly linked to higher depression (β = 0.22). Female gender (β = 0.22), worse perception of educational environment (β = -0.24) and lower SOC (β = -0.57) directly predicted higher anxiety. Female gender (β = 0.18), lower stress control (β = -0.21), and lower SOC (β = -0.46) directly predicted higher stress. The link between gender and both depression and stress, was mediated by stress control. Social support was indirectly linked to depression and stress via SOC. Perception of educational environment mediated the link between SOC and anxiety. Mental health of dental students during COVID-19 pandemic was influenced by demographic characteristics, perception of educational environment, social support and SOC through both direct and indirect pathways.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e090"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404856/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CBCT assessment of mandibular molar furcation following root canal retreatment using engine-driven instruments. 使用引擎驱动器械进行根管再治疗后下颌磨牙毛囊的 CBCT 评估。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0087

Paulo Otávio Carmo Souza, Mike Reis Bueno, Brunno Santos de Freitas Silva, Luiz Eduardo Gregoris, Nádia do Lago Costa, Carlos Estrela

{"title":"CBCT assessment of mandibular molar furcation following root canal retreatment using engine-driven instruments.","authors":"Paulo Otávio Carmo Souza, Mike Reis Bueno, Brunno Santos de Freitas Silva, Luiz Eduardo Gregoris, Nádia do Lago Costa, Carlos Estrela","doi":"10.1590/1807-3107bor-2024.vol38.0087","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0087","url":null,"abstract":"This study employed e-Vol DXS cone beam computed tomography (CBCT) software to assess dentin remnants in the furcation area of mesial canals in mandibular molars during root canal retreatment (RCR). Four groups (Reciproc®, ProTaper Next®, Race Evo®, Protaper Gold®) were subjected to RCR, and CBCT images were captured before (T1) and after (T2) treatment. Measurements of remaining dentin thickness at 1 mm and 3 mm below the furcation were scrutinized. Results revealed no significant differences in mean thicknesses of mesiobuccal (MB) and mesiolingual (ML) canals at 1 mm and 3 mm from the furcation pre-treatment (T1). Post-treatment (T2) showed analogous findings, with no significant differences in mean thicknesses. However, disparities were found between MB and ML canals at both distances, both before and after retreatment. In essence, the evaluated instruments exhibited safety in RCR, implying that they are appropriate for use in critical areas of mandibular molars without inducing excessive wear. This study underscores the reliability of these instruments in navigating danger zones during RCR, and contributes valuable insights for dental practitioners who handle complex root canal scenarios in mandibular molars.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e087"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404853/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of L-PRF on pain and healing outcomes in lower third molar surgery: a randomized split-mouth trial. L-PRF 对下第三磨牙手术疼痛和愈合效果的影响：随机分口试验。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0089

Raissa Pinheiro Moraes, Fábio Wildson Gurgel Costa, Paulo Goberlânio de Barros Silva, Francisco Samuel Rodrigues Carvalho, Jéssica Emanuella Rocha Moura Paz, Gabriel Carvalho Matos, Marcela Lima Gurgel, Edson Luiz Cetira Filho, Eduardo Costa Studart Soares

{"title":"Impact of L-PRF on pain and healing outcomes in lower third molar surgery: a randomized split-mouth trial.","authors":"Raissa Pinheiro Moraes, Fábio Wildson Gurgel Costa, Paulo Goberlânio de Barros Silva, Francisco Samuel Rodrigues Carvalho, Jéssica Emanuella Rocha Moura Paz, Gabriel Carvalho Matos, Marcela Lima Gurgel, Edson Luiz Cetira Filho, Eduardo Costa Studart Soares","doi":"10.1590/1807-3107bor-2024.vol38.0089","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0089","url":null,"abstract":"This study explored the effects of L-PRF on pain, soft tissue healing, periodontal condition, and post-extraction bone repair of mandibular third molars (3Ms). A randomized, prospective, triple-blind, split-mouth clinical trial was conducted with 34 volunteers. Eligible patients were randomly allocated into two treatments: G1 (without L-PRF), G2 (alveoli filled with L-PRF), in which the removal of bilateral 3Ms was performed at the same surgical time. Outcomes were assessed according to a visual analogue scale (pain), soft tissue scoring system (wound healing), periodontal probing of mandibular second molar. Bone repair was determined by volumetric analysis (ITK-SNAP software) and fractal analysis (ImageJ software). An intention-to-treat approach to Statistical analysis was used. L-PRF reduced pain in the 7-day postoperative follow-up (p = 0.019) and not only improved soft tissue healing after 1 month of follow-up (p = 0.021), but also probing depth (distal face) in 3 months postoperatively (p = 0.011). Significant alveolar reduction occurred in 3 months after surgery in both treatments (p < 0.05), however, this was more significant in G1 (p = 0.016). The fractal dimension showed no statistical differences. L-PRF improved postoperative clinical parameters of pain, soft tissue healing, and periodontal condition, suggesting that it has a beneficial effect on preserving the alveolar ridge and accelerating the initial repair process.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e089"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404852/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Profile and satisfaction of patients with special health care needs assisted in dental specialty centers. 在牙科专科中心接受援助的有特殊保健需求的患者的概况和满意度。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0086

Saulo Vinicius da Rosa, Mariana Perotta, Juliana Schaia Rocha, Renata Iani Werneck, Sérgio Aparecido Ignácio, Pablo Guilherme Caldarelli, Paulo Sávio Angeiras de Goes, Samuel Jorge Moysés

{"title":"Profile and satisfaction of patients with special health care needs assisted in dental specialty centers.","authors":"Saulo Vinicius da Rosa, Mariana Perotta, Juliana Schaia Rocha, Renata Iani Werneck, Sérgio Aparecido Ignácio, Pablo Guilherme Caldarelli, Paulo Sávio Angeiras de Goes, Samuel Jorge Moysés","doi":"10.1590/1807-3107bor-2024.vol38.0086","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0086","url":null,"abstract":"This study aimed to analyze the profile and level of satisfaction of users served in the dental specialty for patients with special healthcare needs (SHCN), based on the Brazilian Program for Improving Access and Quality (\"PMAQ\") of the Centers for Dental Specialties (\"CEO\"). This observational, quantitative study used a national secondary database in the public domain. Data were analyzed using the chi-squared test with Bonferroni correction, Student's t-test, and log-linear Poisson regression. Most users of the specialty \"SHCN\" interviewed were female (74.1% in 2014 and 68.8% in 2018), with a mean age of 41.7 (2014) and 44.9 (2018) years. For every 100 respondents who considered it regular or bad, 171 considered it good, and 199 considered it very good. Regarding satisfaction with the host of the \"CEO,\" there were differences between the regions of Brazil (Midwest, Northeast, Southeast, and South). There has been an increase in the number of \"CEO\" that serve users with autism spectrum disorder. Generally, the \"CEO\" network provides humanized and welcoming services, presenting better performance in the second evaluation cycle, according to user perception.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e086"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404851/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Association between bullying at school and tooth loss among 15-19-year-olds from southern Brazil. 巴西南部 15-19 岁青少年校园欺凌与牙齿脱落之间的关系。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-13 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0083

Giovanna Leal Klein, Letícia Donato Comim, Ângela Dalla Nora, Débora Nunes de Oliveira Racki, Julio Eduardo do Amaral Zenkner, Luana Severo Alves

{"title":"Association between bullying at school and tooth loss among 15-19-year-olds from southern Brazil.","authors":"Giovanna Leal Klein, Letícia Donato Comim, Ângela Dalla Nora, Débora Nunes de Oliveira Racki, Julio Eduardo do Amaral Zenkner, Luana Severo Alves","doi":"10.1590/1807-3107bor-2024.vol38.0083","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0083","url":null,"abstract":"This study aimed to investigate the association between bullying at school and tooth loss in southern Brazilian adolescents. This population-based cross-sectional study included a representative sample of 15-19-year-old students attending high schools in Santa Maria, southern Brazil. Data on sociodemographic and behavioral variables were collected through questionnaires. Contextual data on bullying at school was provided by educational institutions (bullying episodes in the previous year: 'no,' 'sometimes,' or 'often'). Tooth loss was clinically assessed by the M component of the DMFT index, modeled as a discrete variable. Multilevel Poisson regression was used, and rate ratios (RR) and 95% confidence intervals (CI) were estimated. The prevalence of tooth loss was 9.2% (95%CI = 7.5-10.8). Adolescents who attended the schools where bullying events often occurred had 0.39 (95%CI = 0.33-0.45) missing teeth, on average, in contrast to an average of 0.14 (95%CI = 0.08-0.19) among those whose schools did not experience bullying in the previous year. After adjusting for important cofactors, the contextual variable of bullying at school remained significantly associated with the study outcome. Adolescents who attended schools where bullying frequently occurred were 2.49-fold more likely to have an additional missing tooth than those whose school did not experience bullying in the previous year (RR = 2.49, 95%CI = 1.37-4.51, p = 0.003). In conclusion, the frequent bullying episodes at school were associated with more permanent teeth lost due to caries in this population. Hence, improving the school environment may improve the oral health of adolescents.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e083"},"PeriodicalIF":1.5,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11404855/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wettability and adhesion of nanotubes applied to the surface of titanium implants by anodic oxidation. 通过阳极氧化将纳米管应用于钛植入物表面的润湿性和粘附性。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-09-09 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0091

Rogério de Lima Romeiro, Jorge Luiz Rosa, Lyncoln da Silva Siqueira, Marcos Giovanetti, Davi Romeiro Aquino, Patricia Fretes Wood, Sandra Giacomin Schneider, Gustavo Grolli Klein

{"title":"Wettability and adhesion of nanotubes applied to the surface of titanium implants by anodic oxidation.","authors":"Rogério de Lima Romeiro, Jorge Luiz Rosa, Lyncoln da Silva Siqueira, Marcos Giovanetti, Davi Romeiro Aquino, Patricia Fretes Wood, Sandra Giacomin Schneider, Gustavo Grolli Klein","doi":"10.1590/1807-3107bor-2024.vol38.0091","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0091","url":null,"abstract":"The aim of this study was to evaluate the wettability and adhesion of self-organized TiO2 nanotubes formed on the surface of 8 commercially pure titanium (CP-Ti) disks and 12 dental implants (n = 12) by anodization in a glycerol-H2O (50-50 v/v) electrolyte containing NH4F. Two disk specimens were not submitted to anodization (controls). The nanotubes thus obtained had average dimensions of 50 nm in diameter by 900 nm in length. The treated disk specimens were stored for 2, 14 and 35 days (n = 2), and the wettability of their surfaces was evaluated with a goniometer at the end of each storing period. The adhesion of nanotubes to titanium was evaluated by field emission scanning electron microscopy after subjecting the 12 implants to a simulation of clinical stress in two-part synthetic bone blocks. After installing the implants with the application of an insertion torque, the two halves of the block were separated, and the implants were removed. The nanotubes remained adhered to the substrate, with no apparent deformation. The contact angles after 14 days and 35 days were 16.47° and 17.97°, respectively, values significantly higher than that observed at 2 days, which was 9.24° (p < 0.05). It was concluded that the method of anodic oxidation tested promoted the formation of a surface suitable for clinical use, containing nanotubes with levels of wettability and adhesion to titanium compatible with those obtained by other methods found in the literature. The wettability, however, did not prove stable over the tested storage periods.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e091"},"PeriodicalIF":1.5,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11385186/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142280451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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