BMC Oral Health最新文献

{"title":"Tensile Strength, Cellular Content and Degradation properties in three generations of concentrated growth factors.","authors":"Akram A Alshirah, Mohamed H Elnaem, Ziad Al-Ani, Malik Hudieb, Jeremy Hamilton, Deborah Lowry, Paul A McCarron","doi":"10.1186/s12903-025-05825-6","DOIUrl":"https://doi.org/10.1186/s12903-025-05825-6","url":null,"abstract":"<p><strong>Background: </strong>Concentrated growth factors (CGF) is a biomaterial with regenerative potential, enriched with platelets, leukocytes, growth factors, and fibrin, but it degrades within 2-3 weeks. Albumin extends CGF stability, while silver nanoparticles (SNP) improve its mechanical and antibacterial properties. This in vitro and ex vivo study investigates the impact of albumin (Alb-CGF) and albumin with SNP (Alb-CGF-SNP) on CGF's mechanical properties, degradation rate, and cellular bioactivity.</p><p><strong>Methods: </strong>Blood samples were collected from 15 healthy volunteers who met specific inclusion criteria, with the sample size determined using G*Power software for power calculation. Three groups were prepared: control CGF, experimental Alb-CGF, and Alb-CGF-SNP. Membranes were produced using a Medifuge MF200 centrifuge and activated plasma albumin gel (APAG) device following standard settings. In experimental groups, the superficial 2.5 ml of plasma layer was heated at 75 °C for 10 min before combining with the buffy coat layer of CGF. Mechanical properties were tested using a texture analyzer, degradation rates were measured by weight loss percentage, and cellular bioactivity was evaluated with a Sysmex hematology analyzer. Data analysis was conducted using GraphPad Prism 8.0. Group differences were assessed via one-way ANOVA and Welch ANOVA, with Tukey's HSD test for post hoc paired group comparisons.</p><p><strong>Results: </strong>The control (CGF) showed the highest mechanical properties, with Ultimate Tensile Strength (UTS) (95.6 kPa), Modulus of Toughness (55.55 kJ/m³), and Young's Modulus (75.73 kPa; (P < 0.01). No significant differences were observed in the strain at break across groups (P > 0.90). Alb-CGF-SNP displayed superior degradation resistance, with 45.2% weight loss at day 60 versus 84.2% in CGF (P < 0.01). CGF had the highest WBC and platelet levels, with amounts of 2.25 and 3.11-fold, respectively (P < 0.01).</p><p><strong>Conclusion: </strong>The modification of CGF with albumin and silver nanoparticles enhanced degradation resistance, although it did not reach the tensile strength and cellular content of unmodified CGF. Clinically, Alb-CGF and Alb-CGF-SNP serve as effective barrier membranes due to their prolonged stability, while CGF remains advantageous where high mechanical strength is required. Despite lower elasticity limiting suturing, their plasticity supports use as fillers or for tissue phenotype modification in regenerative applications.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"674"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044792/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143970494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stability of alveolar ridge following horizontal guided bone regeneration after implant loading for 1 -2 years: a retrospective comparative study.","authors":"Zhaoxia Jiang, Dejing Kong, Chuanqing Zhou, Yixin Liang, Mingli Liu, Zhe Qu","doi":"10.1186/s12903-025-06025-y","DOIUrl":"https://doi.org/10.1186/s12903-025-06025-y","url":null,"abstract":"<p><strong>Objective: </strong>This retrospective comparative study aimed to evaluate the effects of guided bone regeneration(GBR) on horizontal bone augmentation of the alveolar ridge in the mandibular posterior region and bone stability after loading for 1-2 years. We measured and analyzed the changes in alveolar ridge bone width to observe the clinical effect of bone grafting. The RANK/RANKL/OPG concentration in gingival crevicular fluid around the implant was quantitatively analyzed and compared with that of healthy natural teeth to assess the bone condition.</p><p><strong>Methods: </strong>Fifty-two patients admitted to the Department of Implantology of Dalian Stomatological Hospital were selected. 22 implanted dentures of 22 patients that were repaired with soft tissue-level implants after horizontal bone grafting (experimental group). Thirty patients had 30 implanted dentures with the same system of implants without bone grafting (control group). The gingival crevicular fluid around the implant and healthy control natural teeth were collected via the same filter paper strip after loading for 1-2 years. The concentrations and ratios of RANKL and OPG were quantitatively detected via ELISA. The CBCT images taken before bone grafting, on the day after surgery, 6 months after surgery, and after loading were superimposed to measure the horizontal width of the alveolar ridge. Measurements were taken 2 mm apical from the top of the crest at the center of the implant.</p><p><strong>Results: </strong>The average alveolar crest width in the experimental group was 3.72 ± 0.94 mm before surgery, 11.57 ± 1.44 mm on the day after surgery, 8.86 ± 1.37 mm at 6 months after surgery, and 7.62 ± 1.08 mm after 1-2 years of loading. The level of OPG in the experimental group was greater than that in the control group, and greater than that in the natural teeth; however, this difference was not significant (P > 0.05). The RANKL concentration in the gingival crevicular fluid of the two groups was similar, and the RANKL/OPG ratio of the implants in the experimental group was slightly lower than that in the control group; whereas the RANKL and ratio of the two groups were lower than that of the natural teeth (P > 0.05).</p><p><strong>Conclusion: </strong>GBR application in the horizontal bone augmentation of the mandibular posterior dental region has positive clinical outcomes. After 1-2 years of implant loading, the bone in the neck of the implant in the experimental group is slightly more active than in the control group, and may still be in the process of osteogenesis.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"673"},"PeriodicalIF":2.6,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044943/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954008","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on the potential links between clinical features of oral lichenoid mucositis and systemic diseases.","authors":"Peilin Wang, Peipei Yan, Yihang Zhang, Yanjie Li, Fei Du, Miao Zhang, Rong Wang, Yingbing Yan, Hongkai Zhang, Ruiyang Chen, Chenlu Liu","doi":"10.1186/s12903-025-06024-z","DOIUrl":"https://doi.org/10.1186/s12903-025-06024-z","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to analyze the clinical characteristics of oral lichenoid disease and investigate its potential association with systemic diseases.</p><p><strong>Methods: </strong>This study was a retrospective cross-sectional analysis. The study comprised 116 patients who had been diagnosed with oral lichenoid disease, including 70 with oral lichen planus and 46 with lichenoid lesions. The study meticulously documented the distribution and types of lesions in oral lichenoid disease patients.</p><p><strong>Results: </strong>The average age was 46 years, with females representing 69.8% and males 30.2%. The prevalence of major systemic diseases among these patients was notable: thyroid disorders were observed in 64.7%, dyslipidemia in 44.0%, hyperuricemia in 36.2%, hypertension in 28.5%, and diabetes in 21.6%. Significant associations were found between specific lesion sites and systemic diseases. Network-like lesions in the gingival-buccal groove were highly correlated with thyroid disorders (P < 0.000). Lichenoid lesions on the lips were significantly associated with dyslipidemia (P < 0.002). Furthermore, lesions on both the dorsal (P < 0.000) and ventral (P < 0.038) surfaces of the tongue, particularly patchy lesions on the dorsal surface, showed a strong association with hyperuricemia.</p><p><strong>Conclusion: </strong>These findings indicated a significant correlation between the clinical manifestations of oral lichenoid disease and systemic conditions such as thyroid disorders, dyslipidemia, and hyperuricemia.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"669"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044897/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143983370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abutment connection structural changes in dual-retained and screw-retained metal-ceramic implant-supported restorations: an in vitro study, part I.","authors":"Sareh Habibzadeh, Safoura Ghodsi, Marzieh Alikhasi, Seyed Ali Mosaddad, Hosein Mohebbi","doi":"10.1186/s12903-025-06058-3","DOIUrl":"https://doi.org/10.1186/s12903-025-06058-3","url":null,"abstract":"<p><strong>Background: </strong>This study sought to compare the rotational freedom and structural changes of abutment connections in dual-retained and screw-retained metal-ceramic implant restorations at different fabrication stages and following thermomechanical loading.</p><p><strong>Methods: </strong>Twenty metal-ceramic restorations were equally divided into two groups. Group 1 (G1) consisted of dual-retained restorations on prefabricated titanium abutments, while Group 2 (G2) comprised screw-retained restorations on UCLA chromium-cobalt overcast abutments. Specimens underwent 500 cycles of thermocycling and 500,000 cycles of mechanical loading. Changes in connection dimensions and rotational freedom were compared within and between the groups before- and post-loading. Statistical analyses were conducted using a generalized linear model (GLM). The significance level was set at α = 0.05.</p><p><strong>Results: </strong>Initially, no significant differences in connection dimensions were observed between the groups (P >.05). After loading, G2 exhibited significantly smaller hexagon side lengths and diagonal measurements, along with increased hexagonal angle deformation and concentricity (P <.001) compared to G1. Rotational freedom was significantly greater in G2 compared to G1 both before and after thermomechanical loading (P <.001). G2 experienced significant dimensional changes before and after loading (P <.001), whereas G1 showed no significant changes in connection dimensions pre- and post-loading (P >.05).</p><p><strong>Conclusions: </strong>Dual-retained restorations outperformed screw-retained ones with minimal connection alteration and higher rotational stability.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"667"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044777/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143971933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of treatment options for atrophic mandible under trauma forces: a 3D finite element analysis treatment options for atrophic mandible under trauma forces.","authors":"İpek Dilara Baş, Emre Tosun, Ilgın Ari, Gülin Acar","doi":"10.1186/s12903-025-06047-6","DOIUrl":"https://doi.org/10.1186/s12903-025-06047-6","url":null,"abstract":"<p><strong>Objective: </strong>This study aimed to assess the stress distributions at different treatment options in edentulous and severely atrophic mandibula under trauma forces.</p><p><strong>Material and method: </strong>In this study, four different treatment methods were applied to a severely atrophic edentulous mandibular model. In Model 1, inferior alveolar nerve lateralization was performed, followed by the placement of six implants. Model 2 utilized the all-on-four approach with implants placed. Model 3 used subperiosteal implants made of PEEK, while Model 4 used titanium subperiosteal implants. Each subperiosteal implant model included 14 osteosynthesis screws positioned in key areas of the mandible. 2000 Newton trauma force was applied anterior side of the mandibula. The maximum principal stress (Pmax), minimum principal stress (Pmin), and Von Mises (VMs) stress values are measured as MPa.</p><p><strong>Results: </strong>In this study, Model 4 showed the highest Pmax in the symphysis region, while the other models had similar values. The mandibular condyle exhibited the highest Pmax in Model 1 and the lowest in Model 2. The Pmin values were comparable across all models in the symphysis region. Regarding VMs stress values, balanced stress was observed in the metal frameworks of all models. Model 3 had the most balanced and lowest VMs stress in abutments and abutment screws, while Model 4 had the highest.</p><p><strong>Conclusion: </strong>This FEA study found that both the all-on-4 and PEEK subperiosteal implants are more resistant under trauma forces compared to titanium subperiosteal implants and the 6-implant IANL approach. The PEEK subperiosteal implant offers a less invasive treatment option for fractured mandibles.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"668"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044892/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parental awareness and attitudes towards pediatric dentistry and children's oral health.","authors":"Gızem Karagöz Doğan, Yelda Polat, Semanur Özüdoğru","doi":"10.1186/s12903-025-06037-8","DOIUrl":"https://doi.org/10.1186/s12903-025-06037-8","url":null,"abstract":"<p><strong>Background: </strong>Parental lack of awareness about oral and dental health has been strongly linked to increased dental caries in children. Furthermore, many parents are not familiar with the pediatric dentistry specialty, resulting in limited knowledge regarding its role in maintaining children's oral health. Before designing effective educational interventions, understanding parental awareness and attitudes is essential. This cross-sectional study aimed to evaluate parents' awareness and attitudes regarding their children's oral and dental health, as well as pediatric dentistry.</p><p><strong>Methods: </strong>A 24-question online survey was conducted via Google Forms. Participants included parents with at least one child under 15 years old and without a dental profession. Parents of children with systemic or syndromic conditions were excluded. Data were analyzed using IBM SPSS V23, with statistical significance set at p < 0.05.</p><p><strong>Results: </strong>A total of 73.5% of parents were aware of the pediatric dentistry specialty and had taken their children to a pediatric dentist. In cases of pain in primary teeth, 85.5% stated they would consult a dentist, while 10.4% would administer medication and wait. Regarding treatment of primary teeth, 69.5% knew that procedures such as root canal treatments and crowns were possible. About 91.5% paid attention to whether the dentist treating their child was a pediatric dentist. Additionally, 89.6% believed that an infection in a primary tooth could affect the permanent successor. Awareness that pediatric dental treatment could prevent future malocclusion was reported by 79.5%. Moreover, 52.2% were aware that preventive treatments like fluoride and fissure sealants help resist decay; this awareness was significantly higher among parents with undergraduate and postgraduate education (p < 0.001). Similarly, appropriate response to tooth avulsion correlated significantly with higher socioeconomic status (p < 0.001).</p><p><strong>Conclusion: </strong>Parental awareness of children's oral health and pediatric dentistry significantly increases with higher income and education levels. Parents from higher socioeconomic backgrounds demonstrated more informed and preventive approaches. These findings underscore the need for targeted educational programs to raise awareness, especially among socioeconomically disadvantaged groups.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"672"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044928/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of a workplace dental-health program on glycemic control in Japanese working adults: a cohort study.","authors":"Takumi Kitamura, Yoshihiro Shimazaki, Hiroko Hashimoto, Manabu Ito, Tetsuya Fukumori, Yoshinori Inamoto, Yutaka Okuno, Akemi Maruyama","doi":"10.1186/s12903-025-06039-6","DOIUrl":"https://doi.org/10.1186/s12903-025-06039-6","url":null,"abstract":"<p><strong>Background: </strong>This study implemented a workplace dental-health program to encourage those at risk of diabetes to visit a dentist, and examined factors associated with changes in glycemic control.</p><p><strong>Methods: </strong>The participants included 342 people aged 40-64 years old with an A1c value of 5.6% or higher, and those with diabetes, prediabetes, or needing to exercise caution with regard to diabetes. Participants underwent a dental checkup at a dental clinic in 2018, after which their diabetes status was followed for 3 years. Multivariate multinomial logistic regression analysis was performed to calculate the odds ratios (ORs) and 95% confidence intervals (CIs) for the effect of each independent variable on the 3-year change in the A1c value (decrease, stable, or increase).</p><p><strong>Results: </strong>Having a greater number of teeth was associated with a significantly lower OR for an increased A1c value (decrease ≥ 0.3%) (OR, 0.88; 95% CI, 0.79-0.97). Visiting a dentist regularly was associated with a significantly higher OR for a decreased A1c value (increase ≥ 0.3%) (OR, 4.20; 95% CI, 1.45-12.2).</p><p><strong>Conclusion: </strong>Among working adults, those who visited a dentist regularly had better A1c values, and those with a greater number of teeth were less likely to experience worsening of A1c values.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"670"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963095","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of mechanical properties and color stability of 3D-printed denture base materials following two surface treatments.","authors":"Eymen Izzettinoglu, Erdal Eroglu","doi":"10.1186/s12903-025-06056-5","DOIUrl":"https://doi.org/10.1186/s12903-025-06056-5","url":null,"abstract":"<p><strong>Background: </strong>Comprehending the synergistic of surface treatments and oral environmental factors is paramount for optimizing the performance of 3D-printed dentures. This study evaluates flexural strength, hardness, roughness, and color stability of 3D-printed resins after two surface treatments and coffee thermocycling, to establish alternative polishing efficacy.</p><p><strong>Materials and methods: </strong>Rectangular test specimens (64 × 10 × 3.3 ± 0.2 mm) were fabricated from a conventional heat-cured denture base material (Probase HC, n = 20) and four 3D-printed denture base materials (Nextdent; ND, Formlabs; FL, Senertek; ST, Powerresin; PR, n = 40 per group), resulting in a total sample size of N = 180. Specimens were randomly assigned to undergo either mechanical polishing or glazing, followed by 5000 cycles of coffee thermocycling (CTC). Color change (ΔE₀₀) and surface roughness (Ra) were assessed both prior to and subsequent to CTC. Subsequently, the specimens were subjected to a 3-point bending test and a Vickers microhardness (VH) test. Statistical analysis of the data was performed using descriptive and analytical methods, with a significance level set at α = 0.05.</p><p><strong>Results: </strong>The application of Vita Akzent^® LC (VA) as a glaze material, while conferring supplementary protection against surface degradation during coffee thermocycling (CTC), resulted in a statistically significant increase in the initial surface roughness (Ra) values across all experimental 3D-printed groups (p < 0.05). It reduced the ΔE value of the FL group (p = 0.036) but did not have a statistically significant impact on the ΔE₀₀ of other 3D-printed groups (p˃0.05). Additionally, VA enhanced the VH of most 3D-printed groups (p < 0.05). It improved the flexural strength of the PR and ST groups but decreased it for the FL group and had no significant effect on the ND group (p = 0.088). The mechanically polished specimens demonstrated acceptable Ra, ΔE₀₀, and flexural strength values. However, they showed a lower VH than the glazed specimens.</p><p><strong>Conclusion: </strong>Glaze application resulted in improved mechanical strength and hardness for the majority of 3D-printed groups; however, its capacity to effectively reduce surface roughness and discoloration was consistently limited. Conversely, mechanical polishing maintained its beneficial effects, demonstrating clinically acceptable values across all assessed parameters. Therefore, comprehensive additional investigations are necessitated to fully elucidate the performance characteristics of glaze materials and their interactions with 3D-printed denture base materials.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"671"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12044802/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143954000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association between body roundness index and obstructive sleep apnea: a cross-sectional study from the NHANES (2005-2008 to 2015-2020).","authors":"Ben Qin, Miao Shu, Song Cai, YaShi Zhou, JuKun Song, JuXiang Peng","doi":"10.1186/s12903-025-05957-9","DOIUrl":"https://doi.org/10.1186/s12903-025-05957-9","url":null,"abstract":"<p><strong>Background: </strong>Obstructive sleep apnea (OSA) is linked to obesity, and the body roundness index (BRI) is an innovative measure of obesity that more accurately reflects visceral and total body fat. The relationship between BRI and the likelihood of OSA is unclear, so we aimed to investigate the association between BRI and the prevalence of OSA.</p><p><strong>Methods: </strong>We used data from the National Health and Nutrition Examination Survey (NHANES; 2005-2008 to 2015-2020) to conduct a cross-sectional study involving 24,476 individuals aged 18 years or older. OSA was assessed using three standardized NHANES questionnaire items measuring monthly daytime sleepiness, weekly apnea events, and habitual snoring frequency. A formula that uses the height and waist measures from the body measurements is used to calculate the BRI. Covariates, including sex, age, race/ethnicity, education level, marital status, poverty-income ratio (PIR), alcohol consumption, smoking status, high blood pressure (HBP), diabetes, and sleep duration were controlled using multivariate logistic regression models. Subgroup analyses, interaction tests, and smoothed curve fitting were also performed.</p><p><strong>Results: </strong>After controlling for confounders, BRI showed a positive correlation with OSA. Among the 24,476 participants aged 18 and older, 11,856 were diagnosed with OSA. The full model revealed a significant positive association between BRI and OSA incidence (OR = 1.11, 95% CI: 1.08-1.14, p < 0.0001). Participants in the highest percentile of BRI had an 87% greater likelihood of developing OSA compared to those in the lowest percentile (OR = 1.87, 95% CI: 1.62-2.16, p < 0.0001).</p><p><strong>Conclusion: </strong>BRI levels have shown a favorable correlation with the rising rates of OSA in the United States. The BRI serves as a straightforward anthropometric predictor of OSA.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"666"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12042334/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143976379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"3D tooth identification for forensic dentistry using deep learning.","authors":"Hamza Mouncif, Amine Kassimi, Thierry Bertin Gardelle, Hamid Tairi, Jamal Riffi","doi":"10.1186/s12903-025-06017-y","DOIUrl":"https://doi.org/10.1186/s12903-025-06017-y","url":null,"abstract":"<p><p>The classification of intraoral teeth structures is a critical component in modern dental analysis and forensic dentistry. Traditional methods, relying on 2D imaging, often suffer from limitations in accuracy and comprehensiveness due to the complex three-dimensional (3D) nature of dental anatomy. Although 3D imaging introduces the third dimension, offering a more comprehensive view, it also introduces additional challenges due to the irregular nature of the data. Our proposed approach addresses these issues with a novel method that extracts critical representative features from 3D tooth models and transforms them into a 2D image format suitable for detailed analysis. The 2D images are subsequently processed using a recurrent neural network (RNN) architecture, which effectively detects complex patterns essential for accurate classification, while its capability to manage sequential data is further augmented by fully connected layers specifically designed for this purpose. This innovative approach improves accuracy and diagnostic efficiency by reducing manual analysis and speeding up processing time, overcoming the challenges of 3D data irregularity and leveraging its detailed representation, thereby setting a new standard in dental identification.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"665"},"PeriodicalIF":2.6,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12042630/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143963096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}