BMC Oral Health最新文献

{"title":"Physical, chemical and biological properties of MTA Angelus and novel AGM MTA: an in vitro analysis.","authors":"Sara Nashibi, Parisa Amdjadi, SeyedehSana Ahmadi, Sara Hekmatian, Maryam Torshabi","doi":"10.1186/s12903-025-05517-1","DOIUrl":"https://doi.org/10.1186/s12903-025-05517-1","url":null,"abstract":"<p><strong>Introduction: </strong>Mineral trioxide aggregate (MTA) is a calcium silicate-based cement that has changed conventional dental therapeutic approaches. This study aimed to evaluate physical, chemical and biological properties of novel AGM MTA, in comparison with MTA Angelus.</p><p><strong>Methods: </strong>The samples were prepared according to the manufacturer's instructions. The initial and final setting times were measured via a Gillmore needle following the ISO 6876:2012 standard. The radiopacity of the materials was evaluated against an aluminium step wedge on the basis of the ISO 6876 and 13,116 standards. The pH changes were measured at intervals of 3, 6, 24, 72, 96 and 144 h postimmersion in Hank's solution and calcium ion release was analysed after 168 h of immersion via inductively coupled plasma optical emission spectroscopy (ICP‒OES). Moreover, the cytotoxicity was assessed through the MTT assay on human dental pulp stem cells (hDPSCs) after 24 and 72 h of exposure to the set/fresh status of various dilutions of MTA extracts, following the ISO 10993-12 standard.</p><p><strong>Results: </strong>No significant difference was found between the initial setting times of the two materials (Angelus: 11.0 ± 1.0 min, AGM: 10.3 ± 1.5 min); however, MTA Angelus demonstrated a significantly shorter final setting time. Both materials met the minimum radiopacity requirements according to the ISO 6876 standard, with MTA Angelus exhibiting greater radiopacity than AGM MTA. Both materials created an alkaline environment without presenting any differences in each time point and AGM MTA released significantly greater amounts of calcium ions. In the cytotoxicity assessment, while the diluted extracts of both materials did not elicit any cytotoxic effects, the nondiluted samples, after 72 h of exposure, as well as the 30-min set AGM MTA after 24 h of exposure, were shown to be cytotoxic.</p><p><strong>Conclusions: </strong>In conclusion, MTA Angelus presented a faster setting time and lower cytotoxicity, while AGM MTA demonstrated greater calcium ion release. However, both materials presented clinically acceptable properties and AGM MTA could be a potential alternative to MTA Angelus. However, further clinical studies are required to confirm its application.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"145"},"PeriodicalIF":2.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optical properties of repaired additively manufactured resin composites and zirconia and subtractively manufactured ceramics: a comparative study of composite resins.","authors":"Esma Çağlayan, Rafat Sasany, Burcu Naz Bolat, Didar Hartavi, Oyun-Erdene Batgerel, Sultan Merve Ucar, Dilara Gülhan Umurca","doi":"10.1186/s12903-025-05538-w","DOIUrl":"https://doi.org/10.1186/s12903-025-05538-w","url":null,"abstract":"<p><strong>Objective: </strong>This study aims to examine color properties of repairs made with various composites on restorations produced through additive-manufactured resin composites (AM-RC) and zirconia (AM-Z) or subtractive manufacturing (SM) after coffee thermocycling (CTC).</p><p><strong>Materials and methods: </strong>Disk-shaped specimens (Ø10 × 2 mm; N = 120) were fabricated using six different material groups: additively manufactured resin composite (AM-RC) materials (Crowntec [C], NextDent [ND]), additively manufactured zirconia (AM-Z) materials (Lithoz [LI], INNI-Cera [IN]), and subtractively manufactured (SM) materials (CEREC Tessera [ALD], Vita Enamic [EN]). Subsequently, each group was further subdivided into two subgroups (n = 10) based on the type of repair using two different composites resins: Clearfil Majesty Posterior (CL) (n = 60) and Filtek Z350 (FZ) (n = 60). Specimens underwent thermal cycling (CTC), consisting of 10,000 cycles between 5 °C and 55 °C. Color measurements were performed both before and after thermal cycling for all materials. Color discrepancies (ΔE00) and relative translucency parameters (RTPs) were calculated. Statistical analyses were conducted at a significance level of α = 0.05.</p><p><strong>Results: </strong>A one-way ANOVA of ΔE00 values between CL and FZ revealed a significant difference (P = 0.007), with FZ exhibiting higher ΔE00 values. Significant differences in ΔE00 values were also observed among IN, C, and ND after CTC (P < 0.05). ALD demonstrated the lowest amount color change (P < 0.05). LI and EN colors showed no significant difference (P = 0.75). Following CTC, C, ND, and IN colors matched CL. In contrast, ALD, EN, and L colors exhibited significant differences (P ≤ 0.050). FZ showed a poor color match with all AM and SM materials. Furthermore, significant differences in RTP values were identified for all specimens (P < 0.001), with LI having the highest RTP and IN the lowest (P < 0.001).</p><p><strong>Conclusion: </strong>The optical properties of composite and ceramic materials, as well as their stability over time, are crucial for their durability. ALD demonstrated the most consistent color stability. While the CL repair composites experienced some color changes, these changes remained within acceptable limits. Additionally, the LI (AM-Z) material exhibited the highest level of translucency.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"144"},"PeriodicalIF":2.6,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143051556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prevalence of suicidal ideation, attempts and associated risk factors in oral cancer patients: a systematic review and meta-analysis.","authors":"Ganesh Bushi, Mahalaqua Nazli Khatib, Mahendra Pratap Singh, Manisa Pattanayak, Teena Vishwakarma, Suhas Ballal, Pooja Bansal, Abhay M Gaidhane, Balvir S Tomar, Ayash Ashraf, M Ravi Kumar, Ashish Singh Chauhan, Sanjit Sah, Edward Mawejje, Muhammed Shabil","doi":"10.1186/s12903-025-05511-7","DOIUrl":"https://doi.org/10.1186/s12903-025-05511-7","url":null,"abstract":"<p><strong>Background: </strong>Oral cancer, including malignancies of the lip, and oral cavity, is associated with significant psychological distress, increasing the risk of suicidal ideation (SI) and suicide attempts (SA). Despite its severe morbidity and mortality, the prevalence of SI and SA and their associated risk factors remain unclear. This systematic review and meta-analysis aimed to quantify the prevalence of SI and SA among oral cancer patients and identify key psychosocial risk factors.</p><p><strong>Methods: </strong>A comprehensive literature search was conducted across PubMed, Embase, and Web of Science databases, with an initial search on August 13, 2024, and an update on December 19, 2024. Observational studies reporting SI and SA prevalence in oral cancer patients were included. Study quality was assessed using a modified Newcastle-Ottawa Scale (NOS), and statistical analyses were performed using R version 4.4. Pooled prevalence rates were calculated using a random-effects model, heterogeneity was assessed with I² statistics, sensitivity analysis was performed using a leave-one-out approach, and publication bias was evaluated using Doi plots and LFK index values.</p><p><strong>Results: </strong>From 5,145 articles, 13 studies from Taiwan, South Korea, Canada, Germany, and the United States, involving 899,765 participants, were included. The pooled prevalence of SI was 13.08% (95% CI, 7.41-22.03) with moderate heterogeneity (I² = 65%), while SA prevalence was 0.32% (95% CI, 0.1-0.7) with high heterogeneity (I² = 99%). Key risk factors included depression (OR = 42.83), dysphoria (OR = 8.06), prior cancer history (OR = 4.53), rural residence, and male gender.</p><p><strong>Conclusion: </strong>This review revealed a substantial psychological impact faced by oral cancer patients, with notable prevalence rates of suicidal ideation and suicide attempts. Identifying major risk factors, such as depression and dysphoria, underscores the need for integrating tailored mental health interventions into routine oncological care.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"140"},"PeriodicalIF":2.6,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045146","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Near-infrared light reflection for the early detection of proximal caries in posterior teeth: an in vivo study.","authors":"Liheng Shen, Xiqun Yang, Chengzhi Dong, Xiaodong Tang, Simin Zheng, Tingting Wang, Linhong Wang, Fan Yang, Yuchen Zheng","doi":"10.1186/s12903-025-05481-w","DOIUrl":"https://doi.org/10.1186/s12903-025-05481-w","url":null,"abstract":"<p><strong>Background: </strong>The purpose of this study was to evaluate the validity of near-infrared light reflection for detecting different depths of proximal caries in posterior teeth and to compare it with commonly used clinical oral examinations and bitewing radiography images.</p><p><strong>Methods: </strong>Twenty-six patients with a total of 516 proximal surfaces were included in this study. The ground truth of the proximal caries was determined through a consensus reached by two experienced dentists after an intraoral examination assisted by bitewing radiographs. Two general dentists assessed the condition of proximal caries on posterior teeth on near-infrared light reflection images. Accuracy, sensitivity, and specificity were evaluated to determine the diagnostic efficacy of near-infrared light reflection for detecting proximal caries in posterior teeth.</p><p><strong>Results: </strong>For posterior teeth, the accuracy of near-infrared light reflection was 0.78, with a sensitivity of 0.44 and a specificity of 0.83. Cohen's kappa showed poor consistency between the two diagnostic methods, near-infrared light reflection and bitewing radiography.</p><p><strong>Conclusion: </strong>Near-infrared light reflection is an effective clinical tool for detecting proximal caries in posterior teeth, yet this method does not demonstrate superiority over traditional methods such as bitewing radiography.</p><p><strong>Trial registration: </strong>The clinical trial was registered with the China Clinical Trial Registry ( https://www.chictr.org.cn/ ) on 18 August 2023 under the trial number ChiCTR2300074877.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"139"},"PeriodicalIF":2.6,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Oral manifestations of dengue virus infection: a scoping review for clinical dental practice.","authors":"Lucas Peixoto de Araújo, Stefan Kickhofel Weisshahn, Eduarda Thome do Carmo, Bruna Cavalcante Chaves, Mateus de Azevedo Kinalski, Nícolas Kickhofel Weisshahn, Sarah Arangurem Karam","doi":"10.1186/s12903-025-05504-6","DOIUrl":"https://doi.org/10.1186/s12903-025-05504-6","url":null,"abstract":"<p><strong>Background: </strong>Dengue virus (DENV) infection, a mosquito-borne disease, presents a significant public health challenge globally, with diverse clinical manifestations. Although oral dengue manifestations are uncommon, they can serve as crucial diagnostic indicators and impact patient management in dental practice. This scoping review aims to map the evidence on the oral manifestations associated with DENV infection and their clinical implications for dental practice.</p><p><strong>Methods: </strong>This review followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines and was registered on PROSPERO (CRD42022337572). A comprehensive search was conducted across six electronic databases (MEDLINE, Web of Science, Scopus, Embase, Cochrane Library, and LILACS/BBO) up to June 2024. Eligible studies included case reports, case-control, cohort, and cross-sectional studies reporting oral manifestations in patients with DENV infection.</p><p><strong>Results: </strong>A total of 41 studies were included, comprising 17 case reports, 15 retrospective cohort studies, 4 prospective cohort studies, and 5 cross-sectional studies. Gingival bleeding, oral ulceration, bilateral inflammatory increase in the parotid glands, and lingual hematoma were the most frequently reported oral manifestations. Less common manifestations included Ludwig's angina, osteonecrosis of the jaw, and angular cheilitis. These findings suggest a broad spectrum of oral symptoms that could aid in the early identification and management of dengue patients.</p><p><strong>Conclusions: </strong>This review highlights the importance of recognizing oral manifestations in dengue patients, which can facilitate early diagnosis and intervention, particularly in dengue-endemic regions. Dental professionals play a crucial role in identifying these symptoms and improving patient outcomes. Further research is needed to explore the pathophysiological mechanisms underlying these manifestations and to develop standardized protocols for clinical assessment and management.</p><p><strong>Clinical relevance: </strong>This paper highlights the role of dental professionals in early dengue diagnosis, emphasizing oral manifestations like gingival bleeding. It promotes interdisciplinary care, improving patient outcomes and management in dengue-endemic regions.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"138"},"PeriodicalIF":2.6,"publicationDate":"2025-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143045145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of allograft particulate bone and cortical bone blocks combined with xenograft bone for labial bone defects in the aesthetic zone: a prospective cohort study.","authors":"Li-Rong Huang, Yong-Jin Zhong, Xiao-Qing Zhang, Ze-Ru Feng, Yan-Cheng Lai, Hong-Kun Wu, An-Chun Mo","doi":"10.1186/s12903-025-05443-2","DOIUrl":"10.1186/s12903-025-05443-2","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the osteogenic performance of allograft particulate bone and cortical bone blocks combined with xenograft under bovine pericardium membranes, for treating different degrees of labial bone defects in the aesthetic zone.</p><p><strong>Materials and methods: </strong>Twenty-four patients with bone defects were divided into two groups based on defect severity (Terheyden 1/4 and 2/4 groups). The Terheyden 1/4 group received granular bone grafts alone, while the Terheyden 2/4 group received cortical bone blocks combined with granular bone grafts. Cone beam computed tomography scans were taken preoperatively, immediately postoperatively, and six months postoperatively. Primary outcomes included labial bone formation, alveolar bone formation, bone resorption rate, osteogenic efficiency, and complications.</p><p><strong>Results: </strong>Labial bone thickness in both groups exceeded 2 mm after six months. Labial bone formation at the implant shoulder in the Terheyden 1/4 group was 2.35 ± 2.68 mm, and 2.26 ± 1.66 mm in the Terheyden 2/4 group (p > 0.05). Labila and alveolar bone formation at 2-5 mm below the implant shoulder was significantly greater in the Terheyden 2/4 group (p < 0.05). Alveolar bone resorption and the bone resorption rate at 2-5 mm below the implant shoulder was lower in the Terheyden 2/4 group (p < 0.05). Osteogenic efficiency was 64.43 ± 2.76%, with no significant difference between groups (p > 0.05). No complications were observed.</p><p><strong>Conclusion: </strong>Both treatment approaches achieved satisfactory bone regeneration, but combining cortical bone blocks with granular grafts provided better outcomes for larger defects, with greater bone formation and less resorption. Further research with longer follow-up is required to confirm long-term stability.</p><p><strong>Trial registration: </strong>The study was retrospectively registered in the Chinese Clinical Trial Registry ( http://www.chictr.org.cn/ ) with the registration number ChiCTR2300070538 on April 14, 2023.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"137"},"PeriodicalIF":2.6,"publicationDate":"2025-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11762068/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036438","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":"Risk factors and preventive measures for severe orofacial and neck infections: a three-year observational study.","authors":"Jarno Velhonoja, Meira Lääveri, Tero Soukka, Saara Haatainen, Noora Al-Neshawy, Ilpo Kinnunen, Heikki Irjala","doi":"10.1186/s12903-025-05473-w","DOIUrl":"10.1186/s12903-025-05473-w","url":null,"abstract":"<p><strong>Background: </strong>The purpose of this study was to identify the risk factors of severe orofacial and neck infections and the factors that could prevent them and reduce their severity.</p><p><strong>Methods: </strong>A three-year prospective observational study was conducted from 8.15.2016 to 8.31.2019 at a tertiary care hospital. 94 patients participated the study. The criteria for inclusion in the study were that the patients were adults with neck and severe orofacial infections that required treatment in hospital. Patients under the age of 18 and patients who did not consent to participate in the study were excluded. The responses to the questionnaire designed for this study were collected, as was supplemental data from medical records. The patient data were analyzed. Length of stay (LOS), intensive care unit (ICU) stay, complications and mortality were used as the main outcome variables, and various pre-admission factors and clinical and laboratory parameters were used as the predictor variables. The method used was univariate analysis.</p><p><strong>Results: </strong>In 79 (84.0%) cases, surgery confirmed an abscess and pus. Age (p = 0.001) and underlying diseases (p = 0.024) contributed to complications. Bulging of the lateral pharyngeal wall or laryngeal swelling on admission was significantly related to the need for intensive care treatment (p < 0.001). The spaces most often involved were the submandibular (n = 15; 16.0%), sublingual (n = 15; 16.0%) and parapharyngeal (n = 14; 14.9%) spaces. Sixty-three cases (67.0%) were of odontogenic origin, and 58.5% of the patients reported having attended previous health care appointments due to an acute dental problem. The patients with odontogenic infections had poor oral hygiene and most likely did not brush their teeth daily (p = 0.029). \"Dishwater\" pus was associated with longer hospitalization (p < 0.001), intensive care treatment (p < 0.001), and surgical revisions (p < 0.001). One lethal outcome (1.1%) was reported.</p><p><strong>Conclusion: </strong>Age and underlying illnesses should be considered complicating factors, and lateral pharyngeal or laryngeal edema should be considered risk factors for ICU treatment. This study also emphasized the preventive role of good dental hygiene and the importance of patients' follow-up treatment after acute dental interventions.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"136"},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11762144/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036644","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 the effect of dental caries, oral hygiene, and treatment need on oral health-related quality of life among Turkish orphan children and adolescents.","authors":"Ecem Akbeyaz Şivet, Berkant Sezer, Neslihan Atmaca, Narmin Hüseynova, Betül Kargül","doi":"10.1186/s12903-025-05492-7","DOIUrl":"10.1186/s12903-025-05492-7","url":null,"abstract":"<p><strong>Background: </strong>The oral and dental health and related quality of life of orphan children and adolescents-who are considered a vulnerable population-are critical for both individual and public health.</p><p><strong>Objectives: </strong>This study aimed to investigate the status of the dental caries, oral hygiene, and dental treatment needs among a group of Turkish male orphan children and adolescents, as well as their impact on oral health-related quality of life.</p><p><strong>Methods: </strong>A total of 112 orphan children and adolescents aged between 9 and 17 years living in a residential care facility in Istanbul, Türkiye, were involved in this cross-sectional study. A comprehensive examination was conducted on each individual, encompassing the assessment of dental caries using the decayed, missing, and filled teeth (DMFT/dft) index, oral hygiene using the debris (DI-S), calculus (CI-S), and simplified oral hygiene (OHI-S) indices, and dental treatment need using the treatment need index (TNI). Oral health-related quality of life was evaluated using the validated Turkish version of the Child Oral Health Impact Profile-Short Form (COHIP-SF-19). The relationship between oral health-related quality of life and explanatory variables was evaluated using a multivariable linear regression model.</p><p><strong>Results: </strong>The mean age of the participants was 12 ± 1.79 years. The mean DMFT score was 4.57 ± 3.42, and the mean OHI-S score was 1.4 ± 0.52. Participants had a mean COHIP-SF-19 score of 57.79 ± 14.11, with 25% requiring at least one tooth to undergo radical treatment. Multivariable linear regression analysis indicated that the DMFT score (p = 0.009) and the need for radical treatment (TNI code 6) (p < 0.001) had a statistically significant impact on oral health-related quality of life among orphan children and adolescents aged 13-17.</p><p><strong>Conclusions: </strong>This study underscores that dental caries and the need for radical treatment significantly impact the oral health-related quality of life of orphan children and adolescents.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"134"},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11758722/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036530","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":"Mechanical analysis of 3D printed dental restorations manufactured using different resins and validation with FEM analysis.","authors":"Buse Cebi Gul, Fatih Demirci, Nagehan Baki, Erkan Bahce, Mutlu Özcan","doi":"10.1186/s12903-024-05384-2","DOIUrl":"10.1186/s12903-024-05384-2","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to compare the wear and fracture resistance of single crowns produced from newly developed 3D printer resins used to produce permanent crowns and currently used composite CAD/CAM discs, after being thermomechanically aged in a chewing simulator.</p><p><strong>Materials and methods: </strong>A total of 112 stainless steel die models simulating mandibular left first molars were produced, 8 for each group. Single crowns were produced from 3 different discs (Grandio Voco [GR], breCAM HIPC [HC], and Shofu HC [SF]) by CAD/CAM milling method and manufactured from from 4 different permanent composite resins (Nexdent C&B MFH [ND], Permanent Bridge Saremco [PB], VarseoSmile Crownplus [VSC], and Şenertek P-Crown [PC]) using the 3D printing method. Stereomicroscopy, scanning electron microscope (SEM) and Finite Element Method (FEM) analysis was performed. Data were analyzed using ANOVA, paired-t tests and Tukey's HSD test (alpha = 0.05).</p><p><strong>Results: </strong>As a result of thermomechanical aging, significant difference was found between the groups in wear and fracture resistance (P < .05). The highest wear resistance was found in the VSC group, and the lowest wear resistance in the PC group. As a result of the compression test, the highest fracture resistance was noted in the GR group and the lowest in the PC group. FEM analysis performed to validate fracture experiments showed an 87% similarity to the in-vitro data.</p><p><strong>Conclusions: </strong>The crowns in all groups produced by CAD/CAM milling and 3D printing provided acceptable in vitro wear and fracture resistance for clinical application. The wear and fracture resistance of resin-based materials should be supported by clinical studies.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"131"},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11758732/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036538","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":"Effect of antacid gastric syrups on surface properties of dental restorative materials: an in vitro analysis of roughness and microhardness.","authors":"Fikri Öcal, Burak Dayi","doi":"10.1186/s12903-025-05516-2","DOIUrl":"10.1186/s12903-025-05516-2","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this in-vitro study was to evaluate the effects of antacid gastric syrups on the surface roughness and microhardness of restorative dental materials.</p><p><strong>Materials and methods: </strong>Three different composite resins, nanohybrid, microhybrid and giomer, and four antacid gastric syrups were used in the study. A total of 150 samples were obtained by preparing 50 (10 mm x 2 mm) disk-shaped samples of each composite type. The composites were randomly divided into 5 subgroups and immersed in antacid syrups for 2 min every day for 28 days. The control group samples were kept in distilled water for 28 days. Surface roughness was measured at the beginning, on the 7th, 15th and 28th days using a mechanical profilometer, AFM, and SEM and microhardness was measured using a Vickers device. Shapiro-Wilk, Repeated Measures ANOVA, One-Way ANOVA, Tukey and Games-Howell tests were applied for statistical analysis.</p><p><strong>Results: </strong>After 28 days, the surface roughness of the giomer composite decreased significantly (p < 0.05). The surface roughness of microhybrid and nanohybrid composites increased slightly but not significantly (p > 0.05). Microhardness values of microhybrid and giomer composites showed a significant decrease (p < 0.05). SEM and AFM results were in agreement with the mechanical profilometer findings.</p><p><strong>Conclusion: </strong>Agents such as calcium carbonate, sodium bicarbonate and magnesium carbonate in antacid gastric syrups can affect the surface properties of restorative dental materials. This may adversely affect the longevity and aesthetics of restorations.</p><p><strong>Clinical significance: </strong>The study emphasizes the need for caution in restorative material selection and care protocols in patients using antacid gastric syrups.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"135"},"PeriodicalIF":2.6,"publicationDate":"2025-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11762459/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143036445","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}