Brazilian Oral Research最新文献_第10页

Does bullying due to oral conditions influence cigarette smoking in adolescents? A structural equation modeling 由口腔状况引起的欺凌是否影响青少年吸烟?A结构方程建模

4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0100

Bruna BRONDANI, Jessica Klöckner KNORST, Bernardo Antonio AGOSTINI, Yassmín Hêllwaht RAMADAN, Fausto Medeiros MENDES, Thiago Machado ARDENGHI

{"title":"Does bullying due to oral conditions influence cigarette smoking in adolescents? A structural equation modeling","authors":"Bruna BRONDANI, Jessica Klöckner KNORST, Bernardo Antonio AGOSTINI, Yassmín Hêllwaht RAMADAN, Fausto Medeiros MENDES, Thiago Machado ARDENGHI","doi":"10.1590/1807-3107bor-2023.vol37.0100","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0100","url":null,"abstract":"This study aimed to explore the pathways that can influence cigarette smoking among adolescents. This population-based cohort followed a random sample of 12-year-old adolescents from southern Brazil for 6 years. Regular cigarette smoking was assessed through a self-reported question, previously used in the Brazilian National Survey of Scholar Health. We also gathered data on bullying, dental caries at baseline, incidence of caries, sex, friend network, and Sense of Coherence (SOC). Socioeconomic and demographic characteristics were also collected. Structural equation modeling was used to evaluate the pathways. Of the 1,134 adolescents examined at baseline, 768 were re-evaluated (67.7% retention rate). The prevalence of smoking was 37.6%. This prevalence was directly affected by low SOC (SC: -0.14, p < 0.01), low household income (SC: -0.12, p < 0.01), and male sex (SC: 0.15, p < 0.01). Presence of dental caries at baseline indirectly influenced the occurrence of dental bullying at follow-up via the incidence of dental caries (SC: 0.01, p < 0.05). Dental bullying indirectly influenced cigarettes consumption via SOC (SC: 0.62, p < 0.05). Friend network also indirectly influenced the consumption of cigarettes via SOC (SC: 0.32, p < 0.05). Psychosocial factors influence adolescent cigarette consumption through its higher direct and indirect effects (via bullying). In addition, behavioral, sociodemographic, and clinical factors also influence the occurrence of smoking.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135214453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of micro-CT acquisition parameters and individual analysis on the assessment of bone repair 微ct采集参数及个体分析对骨修复评估的影响

4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0099

Milena Suemi IRIE, Rubens SPIN-NETO, Lucas Henrique Souza TEIXEIRA, Gustavo Davi RABELO, Nayara Teixeira de Araújo REIS, Priscilla Barbosa Ferreira SOARES

{"title":"Effect of micro-CT acquisition parameters and individual analysis on the assessment of bone repair","authors":"Milena Suemi IRIE, Rubens SPIN-NETO, Lucas Henrique Souza TEIXEIRA, Gustavo Davi RABELO, Nayara Teixeira de Araújo REIS, Priscilla Barbosa Ferreira SOARES","doi":"10.1590/1807-3107bor-2023.vol37.0099","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0099","url":null,"abstract":"This study aimed to investigate whether two acquisition parameters, voxel size and filter thickness, used in a micro-computed tomography (micro-CT) scan, together with the examiner’s experience, influence the outcome of bone repair analysis in an experimental model. Bone defects were created in rat tibiae and scanned using two voxel sizes of 6- or 12-µm and two aluminum filter thickness of 0.5- or 1-mm. Then, bone volume fraction (BV/TV) and trabecular thickness (Tb.Th) were analyzed twice by two groups of operators: experienced and inexperienced examiners. For BV/TV, no significant differences were found between scanning voxel sizes of 6 and 12 µm for the experienced examiners; however, for the inexperienced examiners, the analysis performed using a 12-µm voxel size resulted in higher BV/TV values (32.4 and 32.9) than those acquired using a 6-µm voxel size (25.4 and 24.8) (p < 0.05). For Tb.Th, no significant differences between the analyses performed by experienced and inexperienced groups were observed when using the 6-µm voxel size. However, inexperienced examiners’ analysis revealed higher Tb.Th values when using the 12-µm voxel size compared with 6 µm (0.05 vs. 0.03, p < 0.05). Filter thickness had no influence on the results of any group. In conclusion, voxel size and operator experience affected the measured Tb.Th and BV/TV of a region with new bone formation. Operator experience in micro-CT analysis is more critical for BV/TV than for Tb.Th, whereas voxel size significantly affects Tb.Th evaluation. Operators in the initial phases of research training should be calibrated for bone assessments.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135214736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Factors associated with periodontal diseases in pregnancy: Findings of the 2015 Pelotas Birth Cohort Study 妊娠期牙周病相关因素:2015年Pelotas出生队列研究结果

4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0110

Luisa Jardim Corrêa de OLIVEIRA, Mariana Gonzalez CADEMARTORI, Camila Silveira SFREDDO, Mariângela Freitas da SILVEIRA, Fernando Celso BARROS, Marcos Britto CORREA, Flávio Fernando DEMARCO

{"title":"Factors associated with periodontal diseases in pregnancy: Findings of the 2015 Pelotas Birth Cohort Study","authors":"Luisa Jardim Corrêa de OLIVEIRA, Mariana Gonzalez CADEMARTORI, Camila Silveira SFREDDO, Mariângela Freitas da SILVEIRA, Fernando Celso BARROS, Marcos Britto CORREA, Flávio Fernando DEMARCO","doi":"10.1590/1807-3107bor-2023.vol37.0110","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0110","url":null,"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.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135611919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cortical microarchitecture and remodeling-associated gene expression related to oral cancer prognosis 口腔癌预后与皮层微结构和重塑相关基因表达有关

4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0109

Daniella Guedes de Figueiredo LOPES, Érica Fernanda PATRICIO, Neuza Maria Souza Picorelli ASSIS, Cláudia Malheiros COUTINHO-CAMILLO, Fabio de Abreu ALVES, Luiz Paulo KOWALSKI, Katharina JÄHN-RICKERT, Björn BUSSE, Gustavo Davi RABELO

{"title":"Cortical microarchitecture and remodeling-associated gene expression related to oral cancer prognosis","authors":"Daniella Guedes de Figueiredo LOPES, Érica Fernanda PATRICIO, Neuza Maria Souza Picorelli ASSIS, Cláudia Malheiros COUTINHO-CAMILLO, Fabio de Abreu ALVES, Luiz Paulo KOWALSKI, Katharina JÄHN-RICKERT, Björn BUSSE, Gustavo Davi RABELO","doi":"10.1590/1807-3107bor-2023.vol37.0109","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0109","url":null,"abstract":"The objective of this study was to assess the remodeling-associated gene expression in the mandible of patients diagnosed with oral squamous cell carcinoma (OSCC), investigating the cortical microarchitecture, and their influence on disease-free survival (DFS) and overall survival (OS) rates. A total of twenty-four patients who underwent mandibulectomy for OSCC treatment had two bone fragments harvested from the mandible for gene expression (RANK, RANKL, OPG, and SOST), and microarchitecture analysis, including bone volume, surface, mineral density, degree of anisotropy, and fractal dimension. The prognosis of the patients was assessed. The results revealed that RANK, RANKL, and SOST were predominantly downregulated, while OPG was completely downregulated. Tumors located adjacent to the posterior region of the mandible (p = 0.02), with a bone mineral density below 1.03 g/cm3 HA (p = 0.001), and a bone volume less than 86.47% (p = 0.03) were associated with poor outcomes. In conclusion, bone-remodeling-associated genes exhibited downregulation in the cortex of the mandible in OSCC patients. Additionally, the tumor’s location within the mandible, bone volume, and cortical bone mineral density were identified as factors impacting DFS.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135612342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Propolis effects in periodontal disease seem to affect coronavirus disease: a meta-analysis. 蜂胶对牙周病的影响似乎影响冠状病毒病:一项荟萃分析。

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0031

Silvia Helena de Carvalho Sales-Peres, Lucas José de Azevedo-Silva, Ana Virginia Santana Sampaio Castilho, Marcelo Salmazo Castro, André de Carvalho Sales-Peres, Maria Aparecida de Andrade Moreira Machado

{"title":"Propolis effects in periodontal disease seem to affect coronavirus disease: a meta-analysis.","authors":"Silvia Helena de Carvalho Sales-Peres, Lucas José de Azevedo-Silva, Ana Virginia Santana Sampaio Castilho, Marcelo Salmazo Castro, André de Carvalho Sales-Peres, Maria Aparecida de Andrade Moreira Machado","doi":"10.1590/1807-3107bor-2023.vol37.0031","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0031","url":null,"abstract":"This meta-analysis aimed to investigate the effects of propolis on the severity of coronavirus disease symptoms by reducing periodontal disease. PubMed, EMBASE, SciELO, Web of Science, and SCOPUS databases were systematically searched. Studies have been conducted analyzing propolis's effects on COVID-19 and periodontitis. The study was conducted according to the PRISMA statement and registered in PROSPERO. Risk of Bias (RoB) assessment and meta-analysis of clinical studies were performed (Review Manager 5, Cochrane). The certainty of the evidence was assessed using GradePro (GDT). Studies have shown propolis flavonoids inhibit viral replication in several DNA and RNA viruses, including coronaviruses. Propolis components have an aminopeptidase inhibitor activity that can inhibit the main proteases of SARS viruses and seem to inhibit protein spikes, which are sites of most mutations in SARS-CoV strains. The meta-analysis showed favorable results with the use of propolis on probing depth (95%CI: 0.92; p < 0.001), clinical attachment level (95%CI: 1.48; p < 0.001), gingival index (95%CI: 0.14; p = 0.03), plaque index (95%CI: 0.11; p = 0.23), and blending on probing (95%CI: 0.39; p < 0.001). The antibacterial activity of propolis could be mediated through its direct action on microorganisms or the stimulation of the immune system, activating natural defenses. Thus, propolis inhibits the replication of SARS-CoV-2 as well as its bacterial activity. Treatment with propolis improves general health and facilitates the activation of the immune system against coronavirus.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9250434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Validation of pairs of antagonist teeth for the evaluation of shortened dental arch in epidemiological studies. 流行病学研究中评价牙弓缩短的拮抗牙对的验证。

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0045

Fernanda Lamounier Campos, Gabriela Aparecida Caldeira Rhodes, Walison Arthuso Vasconcellos, Rafael Aiello Bomfim, Aline Araujo Sampaio, Loliza Luiz Figueiredo Houri Chalub, Raquel Conceição Ferreira

{"title":"Validation of pairs of antagonist teeth for the evaluation of shortened dental arch in epidemiological studies.","authors":"Fernanda Lamounier Campos, Gabriela Aparecida Caldeira Rhodes, Walison Arthuso Vasconcellos, Rafael Aiello Bomfim, Aline Araujo Sampaio, Loliza Luiz Figueiredo Houri Chalub, Raquel Conceição Ferreira","doi":"10.1590/1807-3107bor-2023.vol37.0045","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0045","url":null,"abstract":"The aim of this study was to evaluate the accuracy of pairs of antagonist teeth (epidemiological criterion) for defining pairs of teeth in occlusal contact (clinical criterion) and to estimate the agreement between the prevalence of \"shortened dental arch\" (SDA) and \"functional dentition\" (FD) when occlusal units (OUs) or posterior occluding pairs (POPs) are defined by the epidemiological or clinical criterion. Data were collected in an epidemiological oral health survey conducted in a municipality in Minas Gerais, Brazil. OUs and POPs were defined by the epidemiological criterion (dental crown status) or clinical criterion \"gold standard\" (carbon paper record of occlusal contacts during habitual maximum intercuspation). SDA corresponded to the presence of an intact anterior region and three to five OUs. FD was based on the concomitant presence of ≥ 1 tooth in each arch, 10 teeth in each arch, 12 anterior teeth, ≥ 3 premolar POPs, and ≥ 1 molar POP bilaterally. Sensitivity, specificity, positive predictive value (PPV), negative predictive value (NPV), and accuracy of the epidemiological criterion were calculated. The study included 197 adults. Sensitivity, specificity, PPV, and NPV were 88.5, 87.9, 92.5, and 81.9%, respectively, and accuracy was 88.3%. The epidemiological criterion proved to be valid and could be used in epidemiological studies to calculate the prevalence of reduced dental configurations that consider POPs. The assessment of oral functionality is an aspect that should be included in the diagnosis of the clinical condition of patients, contributing to a more effective individual and collective oral health care plan.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9436418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of dental bullying on bruxism associated with poor sleep quality among adolescents. 牙齿欺凌对青少年与睡眠质量差相关的磨牙的影响。

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107BOR-2023.vol37.0036

Gabriela Bohrer Bolsson, Jessica Klöckner Knorst, Gabriele Rissotto Menegazzo, Thiago Machado Ardenghi

{"title":"Impact of dental bullying on bruxism associated with poor sleep quality among adolescents.","authors":"Gabriela Bohrer Bolsson, Jessica Klöckner Knorst, Gabriele Rissotto Menegazzo, Thiago Machado Ardenghi","doi":"10.1590/1807-3107BOR-2023.vol37.0036","DOIUrl":"https://doi.org/10.1590/1807-3107BOR-2023.vol37.0036","url":null,"abstract":"This study aimed to investigate the impact of school bullying and oral health-related verbal bullying on the occurrence of bruxism associated with poor sleep quality among adolescents. This cross-sectional study was nested in a cohort study performed with a sample of children from southern Brazil. Possible sleep bruxism was determined by the question: \"Has anyone told you that you grind your teeth in your sleep?\" Sleep quality was determined by answering the following question: \"How would you classify the quality of your sleep?\". The outcome was created by combining occurrence of sleep bruxism and poor sleep quality. The Sense of Coherence (SOC) was assessed using the SOC-13 scale. Bullying was investigated using the victim scale of the Olweus Bullying Questionnaire and oral health-related verbal bullying using an item from the Child Perceptions Questionnaire-11-14. Demographic, socioeconomic, psychosocial, and clinical data were also collected. Poisson regression models with robust variance were used. Results were expressed as prevalence ratio (PR) and 95% confidence intervals (95% CI). A total of 429 adolescents with a mean age of 12.6 (standard deviation 1.3) years were evaluated. The prevalence of bruxism associated with poor sleep quality was 23.7%. Victims of school bullying (PR 2.06; 95%CI: 1.01-4.22) and oral health-related verbal bullying (PR 1.87; 95%CI: 1.18-2.95) presented higher prevalence of bruxism associated with poor sleep quality. Factors such as skin color and SOC were also associated with the outcome. These findings suggest an association between episodes of bullying and bruxism related to poor sleep quality.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9460828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Is oral health literacy associated with conceptions of care and behavior related to the prevention of COVID-19? 口腔健康素养与预防COVID-19相关的护理和行为观念是否相关?

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0028

Luciana Reichert da Silva Assunção, Paula Dresch Portella, Fabian Calixto Fraiz, Mariane Carolina Faria Barbosa, Larissa Chaves Morais de Lima, Amanda Palmela Pinheiro, Ana Flávia Granville-Garcia, Fernanda de Morais Ferreira

{"title":"Is oral health literacy associated with conceptions of care and behavior related to the prevention of COVID-19?","authors":"Luciana Reichert da Silva Assunção, Paula Dresch Portella, Fabian Calixto Fraiz, Mariane Carolina Faria Barbosa, Larissa Chaves Morais de Lima, Amanda Palmela Pinheiro, Ana Flávia Granville-Garcia, Fernanda de Morais Ferreira","doi":"10.1590/1807-3107bor-2023.vol37.0028","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0028","url":null,"abstract":"The aim of the present study was to investigate the impact of oral health literacy (OHL) on conceptions of care and behaviors related to COVID-19. The sample came from two preliminary cross-sectional studies that determined the level of OHL of parents/guardians of six-to-12-year-old children in two major Brazilian cities (Curitiba and Belo Horizonte). Functional OHL was measured using the Brazilian version of the Rapid Estimate of Adult Literacy in Dentistry (BREALD-30) and the Health Literacy Dental Scale (HeLD-14) for the evaluation of interactive OHL. Participants were recruited through e-mail, social media, and telephone contact. The questionnaire on conceptions of care and behaviors related to COVID-19 was created based on the guidelines of the World Health Organization. Two hundred nineteen individuals participated in the study. There was no significant difference in socioeconomic and demographic variables and in the medians of BREALD and HeLD-14 between the two cities (P>0.05). Higher levels of functional OHL were associated with an appropriate conception that individual care affects collective care (P=0.038), but with an inappropriate conception of seeking medical assistance in cases of mild symptoms (P=0.030). Higher levels of interactive OHL were related to social distancing behavior in the city of Curitiba (P=0.049) and in the overall sample (P=0.040). It is concluded that functional OHL was associated with two of the investigated conceptions about COVID-19, while interactive OHL was associated with social distancing behavior. These data may suggest that different dimensions of the OHL can have an impact on different aspects of coping with the pandemic.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9263158","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of war on foreign students' satisfaction with quality of dental and medical education in Ukraine. 战争对外国学生对乌克兰牙科和医学教育质量满意度的影响。

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0026

Myroslav Goncharuk-Khomyn, Vasyl Kaliy, Renata Pohorilyak, Alessandro Cavalcanti, Andrii Keniuk, Yasemin Yavuz, Boychuk Olena

{"title":"Impact of war on foreign students' satisfaction with quality of dental and medical education in Ukraine.","authors":"Myroslav Goncharuk-Khomyn, Vasyl Kaliy, Renata Pohorilyak, Alessandro Cavalcanti, Andrii Keniuk, Yasemin Yavuz, Boychuk Olena","doi":"10.1590/1807-3107bor-2023.vol37.0026","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0026","url":null,"abstract":"The objective of this study was to evaluate the changes in foreign students' satisfaction with the quality of dental and medical education considering the impact of the war in Ukraine. The present study was organized in the form of a questionnaire-based survey among 300 foreign students of Medical Faculty and Faculty of Dentistry in Ukraine. The questionnaire was ad mistered via Google form in a multiple-choice, closed-ended format. Students' satisfaction with environment safety and comfort (p < 0.05) and with the collaborative learning offered (p < 0.05) statistically decreased during the war. Sixty percent of the variability in the mean of students' satisfaction with the quality of education during the war could be explained by the satisfaction rate before the war. The need of migration from Ukraine had a stronger inverse correlation with education quality (r = -0.58) than the fact of the war itself (r = -0.32). The war in Ukraine has had a negative impact on the educational process of foreign medical and dental students, even though the quality of education was considered by students to be as high as before and during the war. The personal effort of professors, the quality of study materials, and adequate technical support could potentially overcome the negative impact of the war on student satisfaction with the quality of medical and dental education by the online mode, if the academic medium could be protected from the direct impact of the war or if the influence of the war within the university community could be minimized.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9257117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Deflection of tandem archwire in a specific self-ligating metal bracket system: an in vitro study. 串联弓丝在特定自结扎金属支架系统中的偏转:一项体外研究。

IF 2.5 4区医学

Brazilian Oral Research Pub Date : 2023-01-01 DOI: 10.1590/1807-3107bor-2023.vol37.0065

Lourenço Cattani, Lourenço Correr-Sobrinho, José Guilherme Neves, Heloísa Valdrighi, Eduardo César Almada Santos, Ana Rosa Costa

{"title":"Deflection of tandem archwire in a specific self-ligating metal bracket system: an in vitro study.","authors":"Lourenço Cattani, Lourenço Correr-Sobrinho, José Guilherme Neves, Heloísa Valdrighi, Eduardo César Almada Santos, Ana Rosa Costa","doi":"10.1590/1807-3107bor-2023.vol37.0065","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2023.vol37.0065","url":null,"abstract":"The aim of this study was to quantify the force exerted by tandem archwires in a specific system of passive self-ligating bracket. Forty-eight thermo-activated nickel-titanium orthodontic archwires were separated into four groups (n = 12): G1 - two .014\" + .014\" round archwires; G2 - two .014\" + .016\" round archwires; G3 - .014\" x .025\" rectangular archwire; and. G4 - .016\" x .022\" rectangular archwire. Brackets were fixed onto teeth 1.5 to 2.5 using a device that represented the upper teeth, maintaining an interbracket distance of 6.0 mm. The deflection tests were performed using the structure representative of tooth 1.1 as support on the Instron testing machine at a speed of 2.0 mm/min. The archwires were evaluated at deflections of 0.5 mm, 1.0 mm, and 1.5 mm. The data were analyzed by a generalized linear model, considering values at different deflections as repeated measurements in the same experimental unit (α = 0.5%). At 0.5 mm, higher forces were observed in G2 and G3, which did not differ significantly (p > 0.05). The lowest force was observed in G4 (p < 0.05). At 1.0 mm and 1.5 mm, the highest force was observed in G3, followed by G4 and G2 (p < 0.05). The lowest force was observed in G1 (p < 0.05). In general, tandem archwires (same or different calibers) in a specific passive self-ligating bracket exerted lower force when compared with rectangular archwires.","PeriodicalId":48942,"journal":{"name":"Brazilian Oral Research","volume":null,"pages":null},"PeriodicalIF":2.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9665095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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