Brazilian oral research最新文献_第4页

Structural analysis of socioeconomic factors and school jet lag in traumatic dental injury among children. 儿童创伤性牙损伤的社会经济因素与学校时差的结构分析。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2025-01-13 eCollection Date: 2025-01-01 DOI: 10.1590/1807-3107bor-2025.vol39.005

Veruska Medeiros Martins Bernardino, Larissa Chaves Morais de Lima, Érick Tássio Barbosa Neves, Matheus de França Perazzo, Saul Martins de Paiva, Ana Flávia Granville-Garcia

{"title":"Structural analysis of socioeconomic factors and school jet lag in traumatic dental injury among children.","authors":"Veruska Medeiros Martins Bernardino, Larissa Chaves Morais de Lima, Érick Tássio Barbosa Neves, Matheus de França Perazzo, Saul Martins de Paiva, Ana Flávia Granville-Garcia","doi":"10.1590/1807-3107bor-2025.vol39.005","DOIUrl":"10.1590/1807-3107bor-2025.vol39.005","url":null,"abstract":"The objective of this study was to analyze the directions by which school jet lag is associated with traumatic dental injury in children, evaluating direct and indirect effects of socioeconomic factors and sleep. A representative, population-based, cross-sectional study was conducted with 739 schoolchildren eight to ten years of age. Parents/guardians answered a sociodemographic questionnaire, the Sleep Disturbance Scale for Children and the Circadian Energy Scale. Four examiners underwent training and calibration exercises for the diagnosis of traumatic dental injury (K > 0.80) using the criteria proposed by Andreasen (2007). Descriptive analysis was followed by structural equation modeling to determine direct and indirect associations between the variables incorporated into the theoretical model. School jet lag [standardized coefficient (SC): -0.238, 95%CI: -0.390-0.087], income (SC: -0.151, 95%CI: 0.0010-0.292), and number of residents in the home (SC: -0.109, 95%CI: -0.212-0.007) were directly associated with traumatic dental injury, whereas sleep disturbances and schooling of the parents/guardians exerted an indirect effect. Sociodemographic factors and school jet lag were associated with traumatic dental injury in children eight to ten years of age.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"39 ","pages":"e005"},"PeriodicalIF":1.5,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11729441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143000514","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

Erratum. 勘误表。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2025-01-10 DOI: 10.1590/1807-3107bor-2023.vol37.0119.erratum

引用次数: 0

Physicochemical properties of silicate tricalcium-based cement for use as pulp capping or repair material.

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0136

Suyane Maria Luna-Cruz, Bernardo Almeida Aguiar, Pierre Basílio Almeida Fechine, Marco Antônio Húngaro Duarte, Bruno Carvalho de Vasconcelos, Juliano Sartori Mendonça

{"title":"Physicochemical properties of silicate tricalcium-based cement for use as pulp capping or repair material.","authors":"Suyane Maria Luna-Cruz, Bernardo Almeida Aguiar, Pierre Basílio Almeida Fechine, Marco Antônio Húngaro Duarte, Bruno Carvalho de Vasconcelos, Juliano Sartori Mendonça","doi":"10.1590/1807-3107bor-2024.vol38.0136","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0136","url":null,"abstract":"This study evaluated some physicochemical properties of an experimental tricalcium silicate-based cement (ETSC) indicated for use as pulp capping or endodontic repair material; Biodentine (BD) and White MTA-Angelus (MTA) cements served as comparators. Setting time, radiopacity, sorption, and solubility were determined according to ISO 6876/2012 and compressive strength according to ISO 9917-1/2019. pH and calcium ion release capacity were also assessed. Data were analyzed using ANOVA and Tukey tests or Kruskal-Wallis and Dunn tests with α = 0.05. BD (15') and ETSC (17.3') exhibited the shortest initial setting times, with BD (29') having the shortest final setting time; MTA showed longer times in both analyses (p < 0.05). ETSC and MTA showed the highest radiopacity (6.1 mm Al and 5.7 mm Al), while BD showed the lowest (3.0 mm Al) (p < 0.05). BD exhibited the highest compressive strength (88.8 MPa), significantly higher than the others (p < 0.05). BD presented the lowest values for sorption, 0.12% (24 h) and 0.48% (28 d), which differed significantly from MTA (p < 0.05). The lowest values for solubility were shown for ETSC, 0.26% (24 h), and BD, 0.52% (28 d), which differed significantly from MTA (p<0.05). ETSC showed the highest pH throughout all periods; significant differences were observed for MTA (3 h) and BD (24 h) (p<0.05). In the Ca2+ analysis, BD provided the highest values in all periods; differences were only significant compared to MTA (3h/24h) (p <0 .05). Considering the study conditions, it can be concluded that ETSC exhibited characteristics similar or better properties than the commercial cements tested, except for compressive strength.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e136"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143055858","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

Crystallization by microwave energy: Effects on the survival probability of lithia-based glass ceramics. 微波能量结晶：对锂基玻璃陶瓷成活率的影响。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107BOR-2024.vol38.0127

Pedro Santos Diamantino, Camila da Silva Rodrigues, Ana Beatriz Gomes de Carvalho, João Paulo Mendes Tribst, Hilton Riquieri, Nathália de Carvalho Ramos, Diogo Miguel da Costa Cabecinha Pacheco Viegas, Edmara Tatiely Pedroso Bergamo, Estevam Augusto Bonfante, Guilherme de Siqueira Ferreira Anzaloni Saavedra

{"title":"Crystallization by microwave energy: Effects on the survival probability of lithia-based glass ceramics.","authors":"Pedro Santos Diamantino, Camila da Silva Rodrigues, Ana Beatriz Gomes de Carvalho, João Paulo Mendes Tribst, Hilton Riquieri, Nathália de Carvalho Ramos, Diogo Miguel da Costa Cabecinha Pacheco Viegas, Edmara Tatiely Pedroso Bergamo, Estevam Augusto Bonfante, Guilherme de Siqueira Ferreira Anzaloni Saavedra","doi":"10.1590/1807-3107BOR-2024.vol38.0127","DOIUrl":"https://doi.org/10.1590/1807-3107BOR-2024.vol38.0127","url":null,"abstract":"This study evaluated the survival probabilities of two lithia-based glass-ceramics after final crystallization in a microwave furnace using conventional crystallization as a reference. Disc-shaped samples of a lithium silicate (LS, Celtra Duo) and a lithium disilicate (LD, e.max CAD) were prepared and divided into two groups according to the crystallization method (n = 30): microwave (M) or conventional furnaces (C). The biaxial flexural strength test was used to determine the fatigue test profile and its parameters. Then, specimens were submitted to an accelerated life test (step stress) using three profile levels - mild, moderate, and aggressive - varying the load increments and the number of cycles until fracture (4 Hz). Survival data were used to calculate Weibull's beta (β) value and reliability of the assigned missions. Scanning electron microscopy was employed to analyze surface morphology, fracture characteristics, and failure patterns. Beta (β) values for the LS-C, LS-M, LD-C, and LD-M groups were 2.65, 0.25, 0.62, and 0.3, respectively. Similar reliability was observed in all groups after 50,000 cycles at 100 and 150 Mpa. At 200 Mpa, the crystallization method did not affect the reliability within LS or LD. However, LD showed greater reliability than LS when crystallized by microwave energy. Thus, microwave energy can be suggested as an alternative to the process of conventional lithia-based glass-ceramics crystallization without damaging their survival probabilities.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e127"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142944899","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

Perceptions of research integrity and open science practices: a survey of Brazilian dental researchers. 对研究诚信和开放科学实践的看法：对巴西牙科研究人员的调查。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0135

Jaisson Cenci, Marina Christ Franco, Tatiana Pereira-Cenci, Marcos Britto Correa, Lucas Helal, David Moher, Lex Bouter, Marie Charlotte Huysmans, Maximiliano Sérgio Cenci

{"title":"Perceptions of research integrity and open science practices: a survey of Brazilian dental researchers.","authors":"Jaisson Cenci, Marina Christ Franco, Tatiana Pereira-Cenci, Marcos Britto Correa, Lucas Helal, David Moher, Lex Bouter, Marie Charlotte Huysmans, Maximiliano Sérgio Cenci","doi":"10.1590/1807-3107bor-2024.vol38.0135","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0135","url":null,"abstract":"The objective of this study was to evaluate Brazilian dental researchers' perceptions of research integrity and open science practices, as well as their perceptions of the way researchers are evaluated for promotion, hiring, and receiving grants. In a self-administered online survey, the respondents were presented with 3 questions on researcher evaluation in Brazil. Additionally, for 25 academic activities or characteristics, researchers rated their perceived importance for a) career advancement, b) science advancement, c) personal satisfaction, and d) social impact. The questionnaire was sent to a total of 2,179 dental researchers working in graduate programs in dentistry in Brazil. Multilevel regressions were performed to statistically confirm the differences between the predefined subgroups. Three hundred and fifty-five (16%) researchers completed the survey. Most respondents (96.1%) considered the current evaluation system to be flawed and indicated the need for improvement. Non-traditional activities were considered more important than traditional ones for science advancement (p < 0.01), and social impact (p < 0.01), whereas traditional activities were perceived to be more important only for career advancement (p < 0.01). Although Brazilian dental researchers recognize the value of open science and research integrity practices for science advancement and impact on society, they perceive that the current evaluation system emphasizes traditional activities, such as publishing many papers in well-recognized journals as criteria for advancing their careers.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e135"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142945012","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

Erratum. 勘误表。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 DOI: 10.1590/1807-3107bor-2024.vol38.0091err

引用次数: 0

Comparative analysis of clinicopathological characteristics in young and elderly patients with oral squamous cell carcinoma: a retrospective study in Northeastern Brazil. 巴西东北部青年和老年口腔鳞状细胞癌患者临床病理特征的对比分析

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0138

Pedro Augusto Bulhões Curioso, Ivan José Correia Neto, Lucas Lacerda de Souza, Edilmar de Moura Santos, Alan Roger Santos-Silva, Pablo Agustin Vargas, Marcio Ajudarte Lopes

{"title":"Comparative analysis of clinicopathological characteristics in young and elderly patients with oral squamous cell carcinoma: a retrospective study in Northeastern Brazil.","authors":"Pedro Augusto Bulhões Curioso, Ivan José Correia Neto, Lucas Lacerda de Souza, Edilmar de Moura Santos, Alan Roger Santos-Silva, Pablo Agustin Vargas, Marcio Ajudarte Lopes","doi":"10.1590/1807-3107bor-2024.vol38.0138","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0138","url":null,"abstract":"The aim of this study was to perform a clinicopathological analysis of oral squamous cell carcinoma (OSCC) in young patients from the northeast of Brazil and compare with elderly individuals. This retrospective study reviewed 104 OSCC cases from 2000 to 2015, focusing on patients under 40 and over 60 at diagnosis. Forty-two patients under 40 years old (40.38%) and 62 patients over 60 years old (59.62%) were analyzed using descriptive statistics, chi-square, and Fisher's exact tests for clinicopathological factors, and Kaplan-Meier and Cox models for survival and prognostics. Most of the patients were male, with younger patients having lower rates of smoking (45.24%) and alcohol use (28.57%) compared to older patients (82.30% and 40.32%, respectively). Younger patients had a higher prevalence of tongue cancer and smaller tumors but faced more compromised surgical margins, perineural invasion, local recurrence, regional metastasis, distant metastasis, and second primary tumors. Statistical findings highlighted age-related differences in clinicopathological features and indicated that despite similar overall survival rates, younger patients had a poorer prognosis related to local recurrences, regional recurrences, and second tumors. Perineural invasion emerged as an independent prognostic factor. The study suggests that younger OSCC patients require personalized management strategies to address their higher risk of adverse outcomes, with an emphasis on the prognostic significance of perineural invasion.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e138"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142944894","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

Dental appointments in the primary health care setting for users with toothache: a longitudinal analysis. 牙痛患者在初级卫生保健机构的牙科预约：一项纵向分析

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0134

Fabiano Costa Diniz, Maria Inês Barreiros Senna, Érika Talita Silva, Lígia de Assis Silva, Gizelton Pereira Alencar, Elisa Lopes Pinheiro, Loliza Luiz Figueiredo Houri Chalub, Raquel Conceição Ferreira

{"title":"Dental appointments in the primary health care setting for users with toothache: a longitudinal analysis.","authors":"Fabiano Costa Diniz, Maria Inês Barreiros Senna, Érika Talita Silva, Lígia de Assis Silva, Gizelton Pereira Alencar, Elisa Lopes Pinheiro, Loliza Luiz Figueiredo Houri Chalub, Raquel Conceição Ferreira","doi":"10.1590/1807-3107bor-2024.vol38.0134","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0134","url":null,"abstract":"This study aimed to estimate the morbidity associated with toothache treated in the primary health care (PHC) setting, stratified by the population size of Brazilian municipalities, from 2018 to 2022. This longitudinal ecological study was based on public national data from routine public dental service utilization records within the Health Information System for Primary Care. These data were employed to compute the rate of dental appointments for users with toothache (per 1,000 users) within each municipality throughout 15 four-month periods (P1-2018 to P3-2022), classified by population size. We integrated the databases for population size, denominator, and numerators. A longitudinal data regression model was used to estimate the four-monthly variation before and after P2-2020. Records from 5,332 municipalities (95.72%) were analyzed. The average rate of dental appointments for users with toothache (per 1,000 users) ranged from 9.65 (P2-2020) to 27.24 (P1-2018). Throughout the period, larger municipalities showed the lowest rates. Before P2-2020, the average rate in municipalities with >100,000 inhabitants fell by an average of 20.56% every four months, higher than the 7.25% variation in municipalities with < 5,000 inhabitants. After P2-2020, the rate in municipalities with < 5,000 inhabitants rose by 2.27%, a value lower than the variation in larger municipalities. The rates of dental appointments for users with toothache in the PHC setting indicate the persistent severity of dental conditions among public health service users, with variations across different regions of the country. The COVID-19 pandemic has affected the rate of dental appointments for users with toothache, underscoring the need for dental services to enhance their adaptability and responsiveness to such crises.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e134"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142944917","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

Fiberglass posts reduced fractures in endodontically treated teeth restored with veneers: a case-control study. 玻璃纤维桩减少根管治疗后牙釉面修复的骨折：一项病例对照研究。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0137

Fábio Herrmann Coelho-DE-Souza, Andréa de Azevedo Brito Conceição, Maria Carolina Guilherme Erhardt, Luciano de Souza Gonçalves

{"title":"Fiberglass posts reduced fractures in endodontically treated teeth restored with veneers: a case-control study.","authors":"Fábio Herrmann Coelho-DE-Souza, Andréa de Azevedo Brito Conceição, Maria Carolina Guilherme Erhardt, Luciano de Souza Gonçalves","doi":"10.1590/1807-3107bor-2024.vol38.0137","DOIUrl":"https://doi.org/10.1590/1807-3107bor-2024.vol38.0137","url":null,"abstract":"This study aimed to evaluate the effects of fiberglass posts on fracture behavior in endodontically treated teeth (ETT) restored with composite veneers. Adult patients who had endodontically treated anterior teeth restored with composite veneers, with or without fiberglass posts, were divided into the case (with fractured teeth) and control (without fractured teeth) groups. All fracture patterns were sorted by a 6-point scoring system: 0, no fracture; 1, veneer buccal fracture; 2, incisal edge fracture; 3, coronal middle-third fracture; 4, coronal cervical fracture; 5, coronal and root fracture; and 6, root fracture. The odds ratio was calculated concerning the outcome (fracture) and exposed factor (post presence). Fracture patterns were analyzed by the Mann-Whitney and Fisher exact tests, with a significance level of 95%. Of the 89 ETT restored with composite veneers (31 with posts; 58 without posts), 30 were fractured. The odds ratio revealed a reduction in fracture risk to 34% compared with ETT without posts. Teeth without posts fractured more frequently, showing more complex fracture patterns. In conclusion, fiberglass posts decreased the risk of fractures in ETT restored with composite veneers.","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":"38 ","pages":"e137"},"PeriodicalIF":1.5,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142944924","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

Oral cancer immunology: state of the art and future perspectives. 口腔癌免疫学：现状和未来展望。

IF 1.5 4区医学

Brazilian oral research Pub Date : 2024-12-20 eCollection Date: 2024-01-01 DOI: 10.1590/1807-3107bor-2024.vol38.0129

Fábio Muradás Girardi, Lauren Frenzel Schuch, Manoela Domingues Martins

引用次数: 0