BMC Oral Health最新文献

{"title":"Associations between cumulative exposure to potentially traumatic events and self-reported oral health in the Tromsø Study: Tromsø7.","authors":"Hege Nermo, Jeppe Bjørnskov Goll, Simen Isaksen, Sigurd Eggen Trondsen, Kamilla Rognmo, Jens C Thimm, Catharina Elisabeth Arfwedson Wang, Tiril Willumsen, Jan-Are K Johnsen","doi":"10.1186/s12903-025-06005-2","DOIUrl":"10.1186/s12903-025-06005-2","url":null,"abstract":"<p><strong>Background: </strong>Potentially Traumatic Events (PTEs), such as accidents, childhood neglect or abuse, can affect mental and physical health. The study investigated the association between PTEs and self-reported oral health (SROH), focusing on cumulative exposure to multiple events, the types of events, and the timing of exposure.</p><p><strong>Methods: </strong>Data were collected from the seventh survey of the Tromsø Study, which invited all residents over 40 in Tromsø, Norway. A total of 21,069 participants took part, comprising 47,5% male and 52,5% female respondents, who completed assessments of PTEs and SROH. Chi-square (Χ²) tests evaluated unadjusted associations, and a series of logistic regression models were employed to investigate the association of PTEs with poor SROH, controlling for sociodemographic variables, emotional distress, and oral health-related behaviours.</p><p><strong>Findings: </strong>The likelihood of reporting poor SROH was higher among those who experienced more PTEs, and this relationship persisted after adjusting for sex, age, socioeconomic status, oral health-related behaviour, dental anxiety, emotional distress and adverse dental events. Subsequent analyses differentiated the associations by type and timing (before and after age 18) of events. Interpersonal events involve direct interactions with others (e.g., abuse, bullying), while impersonal events refer to broader circumstances (e.g., accidents, natural disasters). Adverse dental events, classified as impersonal events, demonstrated the strongest association with poor SROH. The associations between interpersonal events and poor SROH varied more depending on covariates than impersonal events. The association strengthened when adjusting for sociodemographic factors but weakened when accounting for oral health behaviours, dental anxiety, and emotional distress. Notably, impersonal events occurring before age 18 were consistently associated with poor SROH across all models.</p><p><strong>Conclusions: </strong>Experiencing multiple PTEs throughout life is associated with poor SROH. Among the various PTEs, adverse dental events showed the strongest association with poor SROH, emphasising the importance of addressing dental care's emotional and psychological aspects, particularly in paediatric settings, to support long-term oral health outcomes.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"884"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12131559/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207654","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":"Analysis of the effect of maxillary transverse deficiencies on permanent maxillary first molar rotations using 3D digital models.","authors":"Samet Özden, Orhan Cicek","doi":"10.1186/s12903-025-06301-x","DOIUrl":"10.1186/s12903-025-06301-x","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to evaluate the permanent maxillary first molar rotation (PMMR) angles in cases of maxillary transverse skeletal deficiency (MTSD) and to compare them with a control group.</p><p><strong>Materials and methods: </strong>In this study, which included a total of 88 patients (50 females, 38 males, with a mean age of 14.98 ± 2.14 years), consisting of 66 patients with MTSD and 22 patients in the control group, four groups were divided: Group 1 (MTSD without molar crossbite), Group 2 (MTSD with bilateral molar crossbite), Group 3 (MTSD with unilateral (right-sided) molar crossbite), and Group 4 (Control Group). Skeletal deficiencies were evaluated by measuring the interjugular, jugale right (JR), and jugale left (JL) distances on posteroanterior cephalograms (PACs), while occlusal relationships were assessed using 3-dimensional (3D) intraoral models. PMMR angles were measured using the 3D Slicer software on 3D intraoral models with the Ricketts Molar-Cusp Reference Line and the midsagittal reference plane. Statistical significance was set at p < 0.05.</p><p><strong>Results: </strong>The PMMR angles and JR and JL distances of Group 2 were significantly higher, while the interjugular distance was found to be the lowest (p < 0.05). There was no significant difference in the PMMR angles between the Control group and Group 1 (p > 0.05), while the JR and JL distances were significantly smaller in the Control group (p < 0.05). In Group 3, on the crossbite side, both the PMMR and the JR and JL distances were significantly higher than on the non-crossbite side (p < 0.05). A significant positive correlation was found between PMMR angles and JR and JL distances (p < 0.05).</p><p><strong>Conclusion: </strong>It was concluded that (i) mesiopalatal PMMRs are observed in the MTSDs with molar crossbite, (ii) molars with normal molar occlusal relationships have normal PMMR angles even in the presence of MTSDs, and (iii) early detection of MTSD enables timely interventions, preventing treatment delays and improving occlusal outcomes, particularly in developing patients, thereby optimizing long-term orthodontic results.</p><p><strong>Clinical relevance: </strong>Considering the differences in PMMR angles between MTSD patients with and without molar crossbite, these findings should be taken into account when designing expansion appliances to achieve molar derotation in these patients.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"879"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12131486/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207651","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":"Supplementary zinc and vitamin D in management of symptomatic oral lichen planus: a three-arm randomized clinical trial.","authors":"Alaa Aboushousha, Yasmine Kamal, Shereen Ali","doi":"10.1186/s12903-025-06173-1","DOIUrl":"10.1186/s12903-025-06173-1","url":null,"abstract":"<p><strong>Background: </strong>Oral lichen planus (OLP) is a chronic inflammatory disease affecting the oral mucosa, with immune mediated pathogenesis. Both zinc and vitamin D are essential micronutrients implicated in OLP pathogenesis, with zinc influencing epithelial growth, wound healing, and oxidative stress mitigation, while vitamin D modulates immune cell function, cytokine activity, and keratinocyte behavior. The current trial was conducted to assess the effect of topical corticosteroid supplemented with zinc or vitamin D compared to topical corticosteroid in management of symptomatic oral lichen planus.</p><p><strong>Methods: </strong>Forty-two patients diagnosed with symptomatic oral lichen planus (atrophic, erosive, or bullous types) were included in the study, based on clinical examination and histopathological confirmation in accordance with the modified World Health Organization (WHO) criteria (2003). Participants were divided randomly into three parallel groups. Group I received topical corticosteroid; Group II received topical corticosteroid with systemic zinc; Group III received topical corticosteroid with systemic vitamin D. The outcome measures included pain intensity using Visual Analogue Scale and clinical improvement using Thongprasom et al. scoring system. Treatment lasted for 8 weeks; patients were clinically evaluated at baseline and on weekly basis.</p><p><strong>Results: </strong>Intergroup comparisons revealed that by Week 3, pain scores were significantly lower in Groups II and III compared to Group I. Intragroup analysis showed significant reductions in pain scores over time for all groups, with Group II showing the most pronounced decrease from baseline to Week 7. Thongprasom scores decreased significantly in all groups, with Group II showing the most significant reduction by Week 8.</p><p><strong>Conclusions: </strong>Systemic zinc supplementation combined with topical corticosteroid can be used as an adjunct therapy for OLP management. Topical corticosteroid supplemented with vitamin D has comparable effect to topical corticosteroid alone on pain and clinical improvement in symptomatic OLP.</p><p><strong>Clinical trial registration: </strong>NCT04765267 (full protocol can be accessed). Date of Initial Clinical Trial Registration: 4 February 2021.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"872"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12128342/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207671","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":"Knowledge and perception of antibiotic prophylaxis for dental procedures among Nepali dental students: a questionnaire-based study.","authors":"Akash Kumar Giri, Manisha Chaudhary, Amit Kumar Yadav, Ashish Shrestha, Tarakant Bhagat, Santosh Kumari Agrawal, Ujwal Gautam","doi":"10.1186/s12903-025-06264-z","DOIUrl":"10.1186/s12903-025-06264-z","url":null,"abstract":"<p><strong>Background: </strong>Prescribing medication is an essential part of clinical dentistry, particularly concerning the use of antibiotics for acute odontogenic infections, surgical prophylaxis, and care of medically compromised patients. Research on dental students' knowledge and perception of antimicrobial prophylaxis in dental practice is notably lacking in Nepal. This study aims to bridge that gap by assessing the level of understanding among Nepali dental students.</p><p><strong>Methods: </strong>An online, questionnaire-based cross-sectional study was carried out among dental students all over Nepal. A total of 288 dental students from Nepal took part in the study, comprising 189 undergraduate students, 62 interns, and 37 postgraduate students. A standard structured questionnaire that included 12 clinically relevant and three perception-based questions was distributed online. The results were analyzed via descriptive statistics.</p><p><strong>Results: </strong>The mean ± SD correct answers were 6.79 ± 2.26. More than three-fourths of the total students (288), i.e., 76.04% (219), answered more than half of the questions correctly. In the dosage and timing scenario, 76.3% of the students answered correctly wherein interns provided the most correct responses (91.0%). In deciding their knowledge of specific scenarios, 73.7% of the students knew when to prescribe correctly in four of five relevant scenarios, with postgraduates performing better (76.1%). Performance declined significantly when it involved evaluating scenarios deemed inappropriate for prophylaxis. Additionally, self-reported perceptions highlighted significant gaps in knowledge (38.6%) and confidence (40.9%). These deficiencies emphasize the strong need for further education, as acknowledged by two-thirds (65.4%) of the students.</p><p><strong>Conclusion: </strong>While most students demonstrated a basic understanding of antibiotic prophylaxis, significant shortcomings were noted, particularly in avoiding unnecessary prescriptions. To ensure appropriate prescribing practices and reduce antibiotic overuse, the integration of a standardized antimicrobial stewardship (AMS) curriculum in all dental institutions in Nepal is strongly recommended.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"873"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12128511/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207668","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":"Accuracy of individual mandibular motion records using intraoral scanner for fixed implant- supported prosthesis designs: a comparative study.","authors":"Bundhit Jirajariyavej, Panchanit Ounvorawong, Suchaya Pornprasertsuk-Damrongsri, Porntida Visuttiwattanakorn, Salisa Sriyarun, Pobploy Petchmedyai","doi":"10.1186/s12903-025-06282-x","DOIUrl":"10.1186/s12903-025-06282-x","url":null,"abstract":"<p><strong>Background: </strong>Accurate occlusal registration is critical for successful dental implant treatments. Traditional mechanical articulation provides insight into occlusal relationships but cannot replicate complex mandibular movements accurately. CAD/CAM advancements, including virtual articulators, enable dynamic occlusion analysis using either average-value settings or individualized mandibular movement data, depending on the system used. Patient Specific Motion (PSM) technology, using intraoral scanners to record actual mandibular movements, offers enhanced functional occlusal design. Despite these advancements, challenges such as patient movement and limited residual dentition affect accuracy, highlighting the need for further research into dynamic occlusal registration methods. This study investigates the impact of different occlusal registration techniques on prosthesis design under varying conditions of missing teeth.</p><p><strong>Methods: </strong>Ten participants were examined in an in-vivo study comparing the accuracy of three occlusal registration methods: 1) Static Occlusal Registration (SA), Dynamic Occlusal Registration including 2) Virtual Articulator (VA), and 3) Patient-Specific Motion (PSM). The tested models were simulated by digital tooth removal in three conditions of missing teeth, and 3-D deviations of occlusal contacts recorded before (reference) and after (tested) virtually tooth removal were assessed to reflect the accuracy of occlusal morphology reproduction.</p><p><strong>Results: </strong>The root mean square (RMS), and percentage of In-Tolerance and Out-of-Tolerance of divided occlusal surface areas were analyzed and visualized using a color-coded deviation map. Statistically significant differences were observed between static and dynamic methods (p < 0.05), though no significant differences between the two dynamic methods. The PSM method exhibited the highest RMS values and a trend of negative deviations, while the VA method demonstrated the largest positive deviations. In terms of the effect of missing teeth, greater deviations were observed in models with more extensive tooth loss, particularly at the functional cusp areas, suggesting reduced accuracy in complex occlusal conditions.</p><p><strong>Conclusions: </strong>This study confirms that different occlusal registration methods (STA, VA, PSM) significantly influence prosthesis design, with all showing clinically acceptable outcomes. PSM demonstrated advantages in customization and may improve treatment precision. Occlusal accuracy declined as the number of remaining teeth decreased, highlighting the importance of maintaining sufficient tooth contacts for reliable digital prosthesis design in partially edentulous cases.</p><p><strong>Trial registration: </strong>This study was retrospectively registered and obtained approval from the TCTR Committee (TCTR20241116001, Date: 16/11/2024).</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"878"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12128537/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207649","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":"Effects of mothers' health beliefs on the dental status of schoolchildren in Taiwanese and immigrant women.","authors":"Ying-Ying Lo, Pei-Liang Lee, Hsien-Wen Kuo","doi":"10.1186/s12903-025-06313-7","DOIUrl":"10.1186/s12903-025-06313-7","url":null,"abstract":"<p><strong>Backgrounds: </strong>Limited evidence suggested that the Health Belief Model (HBM) had been used to explain how children were influenced by their mothers' health behaviors amid the rapid increase in international marriages in Taiwan. This study aimed to explore the health beliefs of immigrant and Taiwanese mothers regarding their children's dental caries status using the HBM.</p><p><strong>Methods: </strong>This study employed a cross-sectional design. A total of 157 Taiwanese mothers, 29 mothers from China, and 64 mothers from Southeast Asia were purposively selected from 11 elementary schools. Each participant completed a structured questionnaire that included socio-demographic information, lifestyle habits, self-perceived oral health beliefs, and oral hygiene behaviors. Dental records of children aged 6-12 were obtained from local dentists at each school.</p><p><strong>Results: </strong>Taiwanese mothers scored significantly higher in perceived susceptibility, perceived severity, and perceived benefit compared to mothers from China and Southeast Asia. However, there were no significant differences in the dental status of children among the three groups. A multiple linear regression model, adjusted for covariates, indicated that higher Health Belief scores in mothers were associated with lower dental caries in their children.</p><p><strong>Conclusion: </strong>While environmental and genetic factors influenced dental caries in children, our findings demonstrated that a mother's health beliefs regarding oral hygiene significantly affected her children's dental status.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"875"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12128547/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207657","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":"Altered gray matter volume in chronic temporomandibular disorder pain with pain catastrophizing: a voxel-based morphometry study.","authors":"Thi-Thu Nguyen, Anh Ho-Quynh Nguyen, Quang-Khang Le, Thi-Kim-Anh Nguyen","doi":"10.1186/s12903-025-06243-4","DOIUrl":"10.1186/s12903-025-06243-4","url":null,"abstract":"<p><strong>Background: </strong>Chronic temporomandibular disorder (TMD) pain with pain catastrophizing (PC) is associated with altered brain morphology; however, its neuroanatomical underpinnings remain unclear. This study aimed to investigate gray matter volume (GMV) in the brain regions of chronic TMD pain patients with PC using voxel-based morphometry.</p><p><strong>Methods: </strong>A case-control study was conducted with 28 participants, including 14 chronic TMD pain patients with high PC and 14 age- and sex-matched healthy controls. T1-weighted magnetic resonance imaging (MRI) data were acquired using a 3-Tesla scanner and analyzed with Statistical Parametric Mapping 12 (SPM12). Whole-brain and Region-of-Interest (ROI) analyses were performed to assess GMV differences and associations between GMV with clinical variables.</p><p><strong>Results: </strong>Whole-brain analysis revealed no significant GMV differences between groups. However, ROIs analyses showed significantly smaller GMV in the bilateral hippocampus, left parahippocampal gyrus, and right putamen in the patient group. Additionally, GMV in the orbital part of the inferior frontal gyrus was negatively associated with pain duration.</p><p><strong>Conclusion: </strong>This study suggests that central nervous system alterations are linked to chronic TMD pain condition with pain catastrophizing. These findings contribute to understanding the neurobiological basis of chronic musculoskeletal pain and highlight the need for further research into the role of cognitive-emotional factors in pain-related neural adaptations.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"881"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12131484/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207650","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 tongue position and Dentofacial skeletal patterns: a simplified approach to tongue position assessment.","authors":"Jun Sun, Rugan Su, Yu Guo, He Li, Zhuojun Xu, Yuxin Zhang, Hongwan Na, Yanning Ma, Song Li","doi":"10.1186/s12903-025-06320-8","DOIUrl":"10.1186/s12903-025-06320-8","url":null,"abstract":"<p><strong>Background: </strong>Tongue position plays a vital role in craniofacial development, influencing skeletal structure and dental alignment. This study aims to assess tongue position and investigate its relationship with various dentofacial skeletal patterns using a novel cephalometric analysis method.</p><p><strong>Methods: </strong>This cross-sectional study included 550 orthodontic patients (ages 6-50) with pre-treatment lateral cephalograms. Participants were divided into mixed dentition (6-11 years) and permanent dentition (12-50 years) groups and classified into three sagittal skeletal patterns (Class I, II, III) based on ANB angle and three vertical patterns (high, average, low angle) based on FMA angle. Statistical analyses were selected according to data distribution and variance. Correlation analysis included Spearman's rank and partial correlation, the latter of which adjusted for age, FMA, and adenotonsillar hypertrophy.</p><p><strong>Results: </strong>In the mixed dentition group, tongue position showed no significant variation by vertical pattern. In the permanent group, patients with low angles had a lower tongue tip. Class III patients exhibited an anterior and inferior tongue tip, while Class II patients had a higher tongue tip in the permanent group, after controlling for adenotonsillar hypertrophy, age, and FMA.</p><p><strong>Conclusions: </strong>This study introduces a simplified method for measuring tongue position. A superior tongue tip correlates with skeletal Class II malocclusion, while an anterior and inferior tongue tip and lower tongue position are linked to skeletal Class III malocclusion. A lower tongue tip is also associated with low angle skeletal patterns.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"880"},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12131645/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207652","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":"Clinical and radiographic assessment of composite CAD/CAM endocrowns and stainless steel crowns for endodontically treated first permanent molars in Egyptian children: randomized controlled pilot study.","authors":"Basheer Ali Mabkhot, Sheriene Ezz Eldin Taha, Shaimaa Mohamed Sabry","doi":"10.1186/s12903-025-06192-y","DOIUrl":"10.1186/s12903-025-06192-y","url":null,"abstract":"<p><strong>Background: </strong>Dental caries in first permanent molars (FPMs) constitutes a worldwide health concern. Managing FPMs with deep dental caries in children poses a significant struggle for dental practitioners. The objective of this research is the clinical and radiographic evaluation of composite CAD/CAM endocrowns as restoration versus stainless steel crowns (SSCs) for endodontically treated FPMs in children.</p><p><strong>Patients and methods: </strong>This pilot study evaluated 24 children with deep caries in FPMs attending the dental clinic of Pediatric Dentistry and Dental Public Health Department, Faculty of Dentistry, Cairo University, Egypt. They were randomly assigned to receive either a composite CAD/CAM endocrown (Group I) or an SSC (Group II). Clinical evaluations (postoperative pain, crown retention, patient/parent satisfaction) were performed at one week, three, six, nine, and 12 months. Radiographic assessments (tooth fracture) were done at one week, six months, and 12 months.</p><p><strong>Results: </strong>Prior to the intervention, no statistically significant differences were observed between the two groups. No significant differences in postoperative pain scores were observed between groups. Both groups showed good crown retention, with one clinical failure in each group. Patient satisfaction was higher for endocrowns compared to SSCs at three, six, nine, and 12 months. No root fractures were observed in either group.</p><p><strong>Conclusion: </strong>Both composite CAD/CAM endocrowns and SSCs showed similar clinical and radiographic outcomes, except for patient satisfaction. Clinicians may consider composite CAD/CAM endocrowns if patient satisfaction is the primary concern.</p><p><strong>Trial registration: </strong>Current Controlled Trial NCT05250609. Registered on 22/02/2022, retrospectively registered. https://clinicaltrials.gov/study/NCT05250609 .</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"864"},"PeriodicalIF":2.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12125723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191491","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":"Finite element analysis of SED and facial morphology.","authors":"Kazuhiro Murakami, Masayoshi Kawakami, Kazuhiko Yamamoto, Satoshi Horita","doi":"10.1186/s12903-025-06156-2","DOIUrl":"10.1186/s12903-025-06156-2","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose of this was to construct finite element (FE) models based on computed tomography (CT) data of individual patients during orthodontic treatment and to evaluate the relationship between strain energy density (SED) in the temporomandibular joint (TMJ) disc and the facial morphology of three skeletal patterns (Class 1-3) by cephalometric analysis.</p><p><strong>Methods: </strong>Cephalometric analyses were performed on 53 patients. FE models based on the CT images of each patient were constructed, and the mean SED in the bilateral TMJ disc was calculated. The relationships between SED and the cephalometric parameters were evaluated.</p><p><strong>Results: </strong>SED was significantly greater in Classes 1 and 2 than in Class 3 (p < 0.05). Positive correlations were observed between SED and convexity, ANB angle (p < 0.01), and gonial angle in Class 1 (p < 0.05). A negative correlation was observed between SED and facial angle in Class 3 (p < 0.05). Overall, correlations were found between SED and facial angle, convexity, mandibular angle, Y-axis, SNB, ANB angle, and overjet (p < 0.05).</p><p><strong>Conclusion: </strong>Increased SED in the TMJ disc was associated with clockwise mandibular rotation and superior posterior positioning. Mandibular morphology primarily affected SED, with facial angle, convexity, and ANB being useful predictors of TMJ dysfunction.</p>","PeriodicalId":9072,"journal":{"name":"BMC Oral Health","volume":"25 1","pages":"859"},"PeriodicalIF":2.6,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12125758/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144191497","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}