Brazilian oral researchPub Date : 2024-07-23eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0076
Carolina Lopes da Silva, Cleber Paradzinski Cavalheiro, Cassiane Gonçalves de Oliveira da Silva, Daniela Prócida Raggio, Luciano Casagrande, Tathiane Larissa Lenzi
{"title":"Restoration-repair potential of resin-modified glass ionomer cement.","authors":"Carolina Lopes da Silva, Cleber Paradzinski Cavalheiro, Cassiane Gonçalves de Oliveira da Silva, Daniela Prócida Raggio, Luciano Casagrande, Tathiane Larissa Lenzi","doi":"10.1590/1807-3107bor-2024.vol38.0076","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0076","url":null,"abstract":"<p><p>This in vitro study aimed to evaluate the repair bond strength of resin-modified glass ionomer cement using either the same material or a universal adhesive in the etch-and-rinse and self-etch modes plus resin composite. Twenty-four resin-modified glass ionomer cement blocks were stored in distilled water for 14 d and thermocycled. Sandpaper ground specimens were randomly assigned to three experimental groups according to the repair protocol: resin-modified glass ionomer cement (Riva Light Cure, SDI) and universal adhesive (Scotchbond Universal Adhesive, 3M Oral Care) in etch-and-rinse or self-etch modes and nanohybrid resin composite (Z350 XT, 3M Oral Care). After 24 h of water storage, the blocks were sectioned, and bonded sticks were subjected to the microtensile bond strength (μTBS) test. One-way ANOVA and Tukey's test were used to analyze the data. The failure mode was descriptively analyzed. The highest μTBS values were obtained when the resin-modified glass ionomer cement was repaired using the same material (p < 0.01). In addition, the mode of application of the universal adhesive system did not influence the repair bond strength of the resin-modified glass ionomer cement. Adhesive/mixed failures prevailed in all groups. Repair of resin-modified glass ionomers with the same material appears to be the preferred option to improve bond strength.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376604/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142016431","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}
Brazilian oral researchPub Date : 2024-07-12eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0065
Laís Rueda Cruz, Stephanie Fumagalli Braga, Paulo Nadanovsky, Ana Paula Pires Dos Santos
{"title":"Spin in dental publications: a scoping review.","authors":"Laís Rueda Cruz, Stephanie Fumagalli Braga, Paulo Nadanovsky, Ana Paula Pires Dos Santos","doi":"10.1590/1807-3107bor-2024.vol38.0065","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0065","url":null,"abstract":"<p><p>The aim of this review was to map the practice of spin in scientific publications in the dental field. After registering the review protocol (osf.io/kw5qv/), a search was conducted in MEDLINE via PubMed, CENTRAL, Embase, Scopus, LILACS, ClinicalTrials.gov, and OpenGrey databases in June 2023. Any study that evaluated the presence of spin in dentistry was eligible. Data were independently extracted in duplicate by two reviewers. After removing duplicates, 4888 records were screened and 38 were selected for full-text review. Thirteen studies met the eligibility criteria, all of which detected the presence of spin in the primary studies, with the prevalence of spin ranging from 30% to 86%. The most common types of spin assessed in systematic reviews were failure to mention adverse effects of interventions and to report the number of studies/patients contributing to the meta-analysis of main outcomes. In randomized controlled trials, there was a focus on statistically significant within-group and between-group comparisons for primary or secondary outcomes (in abstract results) and claiming equivalence/noninferiority/similarity for statistically nonsignificant results (in abstract conclusions). The practice of spin is widespread in dental scientific literature among different specialties, journals, and countries. Its impact, however, remains poorly investigated.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376646/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625952","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}
Brazilian oral researchPub Date : 2024-07-12eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0056
Isabela Ferreira da Silva, Letícia Cabrera Capalbo, Renan Dal-Fabbro, Mayra Frasson Paiva, Thayse Yumi Hosida, Liliana Carolina Báez-Quintero, Caio Sampaio, Douglas Roberto Monteiro, Alberto Carlos Botazzo Delbem, Juliano Pelim Pessan
{"title":"Dentin erosive wear is reduced by fluoride varnishes containing nanosized sodium trimetaphosphate in vitro.","authors":"Isabela Ferreira da Silva, Letícia Cabrera Capalbo, Renan Dal-Fabbro, Mayra Frasson Paiva, Thayse Yumi Hosida, Liliana Carolina Báez-Quintero, Caio Sampaio, Douglas Roberto Monteiro, Alberto Carlos Botazzo Delbem, Juliano Pelim Pessan","doi":"10.1590/1807-3107bor-2024.vol38.0056","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0056","url":null,"abstract":"<p><p>This study evaluated the effect of fluoride varnishes containing micrometric or nanosized sodium trimetaphosphate (TMP) on dentin erosive wear in vitro. Bovine root dentin blocks were selected by surface hardness and randomly divided into five experimental groups/varnishes (n = 20/group): placebo, 5% sodium fluoride (NaF); 5% NaF+5% micrometric TMP; 5% NaF+2.5% nanosized TMP; and 5% NaF+5% nanosized TMP. Half of the surface of all blocks received a single application of the assigned varnish, with subsequent immersion in artificial saliva for 6 h. Varnishes were then removed and the blocks were immersed in citric acid (90 s, 4×/day, 5 days). After each erosive cycle, ten blocks of each group were immersed in a placebo dentifrice for 15 s (ERO), while the other ten blocks were subjected to abrasion by brushing (ERO+ABR). Dentin erosive wear was assessed by profilometry. Data were submitted to 2-way ANOVA and to the Holm-Sidak test (p<0.05). Dentin erosive wear was significantly higher for ERO+ABR than for ERO for all varnishes. TMP-containing varnishes promoted superior effects against dentin erosive wear compared with 5% NaF alone; and 5% nanosized TMP led to the lowest wear among all varnishes. In conclusion, the addition of TMP to conventional fluoride varnish (i.e., varnish containing only NaF) enhanced its protective effects against bovine root dentin erosion and erosion+abrasion. Additionally, the use of 5% nanosized TMP led to superior effects in comparison to 5% micrometric TMP, both for erosion and erosion+abrasion in vitro.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376609/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141626013","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}
Brazilian oral researchPub Date : 2024-07-12eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0064
Rainde Naiara Rezende de Jesus, Christos Tsatsanis, Camilla Christian Gomes Moura, Darceny Zanetta-Barbosa, Andreas Stavropoulos
{"title":"Modulation of osteoclastogenesis by macrogeometrically designed hydrophilic dual acid-etched titanium surfaces.","authors":"Rainde Naiara Rezende de Jesus, Christos Tsatsanis, Camilla Christian Gomes Moura, Darceny Zanetta-Barbosa, Andreas Stavropoulos","doi":"10.1590/1807-3107bor-2024.vol38.0064","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0064","url":null,"abstract":"<p><p>The aim of this study was to evaluate the influence of implant macrodesign and surface hydrophilicity on osteoclast (OC) differentiation, activation, and survival in vitro. Titanium disks were produced with a sandblasted, dual acid-etched surface, with or without additional chemical modification for increasing hydrophilicity (SAE-HD and SAE, respectively) and different macrodesign comprising trapezoidal (HLX) or triangular threads (TMX). This study evaluated 7 groups in total, 4 of which were experimental: HLX/SAE-HD, HLX-SAE, TMX/SAE-HD, and TMX/SAE; and 3 control groups comprising OC differentiated on polystyrene plates (CCPC): a positive CCPC (+), a negative CCPC (-), and a lipopolysaccharide-stimulated assay positive control group, CCPC-LPS. Murine macrophage RAW264.7 cells were seeded on the disks, differentiated to OC (RAW-OC) by receptor activator of nuclear factor-κB ligand (RANKL) treatment and cultured for 5 days. Osteoclast differentiation and cell viability were respectively assessed by specific enzymatic Tartrate-Resistant Acid Phosphatase (TRAP) activity and MTT assays. Expression levels of various OC-related genes were measured at the mRNA level by quantitative polymerase chain reaction (qPCR). HLX/SAE-HD, TMX/SAE-HD, and HLX/SAE significantly suppressed OC differentiation when compared to CCPC (+). Cell viability was significantly increased in TMX/SAE and reduced in HLX/SAE-HD. In addition, the expression of Interleukin (IL)-6 and Tumour Necrosis Factor (TNF)-α was upregulated in TMX/SAE-HD compared to CCPC (+). Hydrophilic surfaces negatively modulate macrophage/osteoclast viability. Specifically, SAE-HD with double triangular threads increases the cellular pro-inflammatory status, while surface hydrophilicity and macrodesign do not seem to have a distinct impact on osteoclast differentiation, activation, or survival.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376645/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625950","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}
{"title":"Test of Oral Health Literacy in Adults (TOHLA): development and psychometric evaluation of a new scale.","authors":"Mohtasham Ghaffari, Sakineh Rakhshanderou, Fábio Luiz Mialhe, Yadollah Mehrabi, Ali Safari-Moradabadi","doi":"10.1590/1807-3107bor-2024.vol38.0059","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0059","url":null,"abstract":"<p><p>This study aimed to develop and rigorously evaluate the Test of Oral Health Literacy in Adults (TOHLA) for the Iranian population, addressing the limitations of existing oral health literacy (OHL) measurement instruments and contributing to the literature on OHL assessment. The development of the TOHLA involved a qualitative approach, which included a comprehensive literature review and semi-structured interviews with a panel of 15 experts from diverse fields and 22 Iranian adults aged 18 to 64 years. The instrument was designed with 48 items categorized into four domains: cognitive skill, communication skill, media skill, and functional skill. Content validity was established through expert input and content validation indices. Construct validity was supported by factor analysis, and concurrent validity was assessed by comparing TOHLA scores with demographic variables. Internal consistency and test-retest reliability analyses were performed to assess the instrument's reliability. The psychometric evaluation of the TOHLA demonstrated strong content validity, construct validity, concurrent validity, internal consistency, and test-retest reliability. The instrument exhibited a high level of internal consistency, with a Cronbach's alpha coefficient of 0.81 for the entire scale. Test-retest reliability was satisfactory, with an intraclass correlation coefficient (ICC) of 0.83. Concurrent validity analysis showed statistically significant associations between OHL scores and demographic variables, supporting the instrument's overall performance. The TOHLA overcomes the weaknesses observed in existing instruments and offers a comprehensive tool with strong psychometric properties to assess the OHL of the Iranian adult population. Researchers, policymakers, and healthcare providers can utilize the TOHLA to address oral health challenges and enhance overall oral health outcomes among Iranian adults.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376613/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625953","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}
{"title":"Impact of storage conditions on the fracture reliability and physical properties of a dental resin-based composite.","authors":"Afnan Omar Al-Zain, Evandro Piva, Alice Hammes Pimentel, Camila Gonçalves Duarte, Lisia Lorea Valente, Cristina Pereira Isolan, Eliseu Aldrighi Münchow","doi":"10.1590/1807-3107bor-2024.vol38.0062","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0062","url":null,"abstract":"<p><p>This study investigated the impact of 'storage condition' and 'period of storage' on selected physico-mechanical properties and fracture reliability of a resin-based composite (RBC). Specimens, prepared from a nanofilled RBC (Filtek Z350 XT; 3M ESPE), underwent tests for degree of conversion (DC), flexural strength (σ), flexural modulus (E), and hardness. The specimens were initially grouped into dry storage at 37°C or wet storage in distilled water at 37°C. Subsequently, they were further divided into four subgroups based on the period of storage: 6, 24, 72, or 168 hours. Specimens tested immediately after preparation served as control. Data analysis employed two-way ANOVA and Weibull analysis (α = 5%). Compared to the control, an increase in DC was observed only after 72 hours of dry storage; σ showed higher values after both dry and wet storage, regardless of the storage period (except for the group wet-stored for 168 hours); E increased with dry storage for at least 24 hours or wet storage for 72 hours; and hardness increased after dry storage for at least 24 hours or wet storage for up to 72 hours. The Weibull modulus remained unchanged under any of the distinct storage conditions. Dry storage resulted in greater characteristic strength than the control, whereas wet storage contributed to higher strength values only at shorter periods (up to 24 hours). Overall, the inherent properties of RBCs with a similar composition to that tested in this study may change with varying storage conditions and periods.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376674/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141626016","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}
Brazilian oral researchPub Date : 2024-07-12eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0022
Jáder Camilo Pinto, Fernanda Ferrari Esteves Torres, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru, Mário Tanomaru-Filho
{"title":"Influence of sealer and supplementary approach on filling material removal during endodontic retreatment.","authors":"Jáder Camilo Pinto, Fernanda Ferrari Esteves Torres, Airton Oliveira Santos-Junior, Karina Ines Medina Carita Tavares, Juliane Maria Guerreiro-Tanomaru, Mário Tanomaru-Filho","doi":"10.1590/1807-3107bor-2024.vol38.0022","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0022","url":null,"abstract":"<p><p>Both root canal sealer-based and supplementary protocols may influence removal of filling material during endodontic retreatment. Mesial root canals of extracted mandibular molars were prepared using HyFlex EDM 25/.08, and filled with a calcium silicate sealer (Bio-C Sealer), or an epoxy resin (AH Plus), using the single cone technique (n = 12). Retreatment was performed using ProDesign Logic (PDL) RT and PDL 35/.05. The specimens were randomly divided into two experimental groups (n = 12), and the sealers were distributed similarly. A supplementary protocol was performed with PDL 50/.01 or XP-endo Finisher. Root canal transportation and volume, in addition to the remaining filling material percentage were evaluated using high-resolution (5 µm voxel size) micro-CT. Statistical analysis was performed using t-tests (α = 0.05). Root canals filled with AH Plus presented high residual filling material (p < 0.05). Both protocols decreased residual volume of filling material in the apical third (p < 0.05). PDL 50/.01 increased the apical root canal volume (p < 0.05). No difference was observed between the systems regarding canal transportation (p > 0.05). In conclusion, AH Plus is more difficult to remove from the apical third than Bio-C Sealer. PDL 50/.01 and XP-endo Finisher enabled greater removal of filling materials in the apical third, in the retreatment of curved root canals, without promoting apical transport.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376681/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141626018","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}
Brazilian oral researchPub Date : 2024-07-12eCollection Date: 2024-01-01DOI: 10.1590/1807-3107bor-2024.vol38.0060
Daniela Fernandes Lobo Molica Oliveira, Ellen Eduarda Fernandes, Sergio Lúcio Pereira de Castro Lopes, Sigmar de Mello Rode, Wagner de Oliveira, Ertty Ertty, Mauricio de Almeida Cardoso, An Tien-Li, Fernanda Meloti
{"title":"Prevalence of condylar morphological changes in individuals with class II malocclusion.","authors":"Daniela Fernandes Lobo Molica Oliveira, Ellen Eduarda Fernandes, Sergio Lúcio Pereira de Castro Lopes, Sigmar de Mello Rode, Wagner de Oliveira, Ertty Ertty, Mauricio de Almeida Cardoso, An Tien-Li, Fernanda Meloti","doi":"10.1590/1807-3107bor-2024.vol38.0060","DOIUrl":"10.1590/1807-3107bor-2024.vol38.0060","url":null,"abstract":"<p><p>This observational, cross-sectional study with retrospective collection was aimed to evaluate the prevalence of morphological changes in mandibular condyles in individuals with class II malocclusion, classified according to different vertical growth patterns (brachyfacial, mesofacial, and dolichofacial), through cone beam computed tomography (CBCT). Seventy CBCT images (140 mandibular condyles) were selected from individuals without orthodontic treatment, of both sexes, aged between 25 and 50 years. No statistically significant differences were found between facial patterns; however, there was a higher relative prevalence of bone changes in dolichofacial individuals with flattening (62%), sclerosis (44%), and subchondral bone cyst (20%). Erosion and osteophytes prevailed in mesofacial (39%), and brachyfacial individuals (32%), respectively. Thus, there was no statistically significant difference in the prevalence of degenerative changes between the vertical skeletal patterns. Flattening was the most prevalent change, whereas subchondral bone cyst was the least prevalent among the three groups studied. The observational design of this study makes it possible to analyze image banks to verify the correlation of morphological changes in the temporomandibular joint in different facial patterns in patients with class II malocclusion. A limitation of the study is that clinical characteristics were not evaluated.</p>","PeriodicalId":9240,"journal":{"name":"Brazilian oral research","volume":null,"pages":null},"PeriodicalIF":1.5,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11376684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141625951","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}