Journal of Maxillofacial & Oral Surgery最新文献

{"title":"\"Happy Hour to Hospital Hour\"-the Overlooked Complexity of Treating Facial Trauma in Chronic Alcoholics.","authors":"Elavenil Panneerselvam, Rajkumar Krishnan","doi":"10.1007/s12663-025-02677-z","DOIUrl":"https://doi.org/10.1007/s12663-025-02677-z","url":null,"abstract":"","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1134-1136"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316630/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A Novel Classification Proposal of Mandibular Defects for Mandibular Reconstruction.","authors":"Toshinori Iwai, Satomi Sugiyama, Yasuharu Yajima, Kenji Mitsudo","doi":"10.1007/s12663-025-02593-2","DOIUrl":"https://doi.org/10.1007/s12663-025-02593-2","url":null,"abstract":"","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1122-1124"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316650/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776564","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Do Immediate Implants Exhibit Deeper Vertical Positioning Than Delayed Implants? Radiographic Findings and Clinical Implications.","authors":"Adam Aboukhalil, Ronald Younes","doi":"10.1007/s12663-025-02681-3","DOIUrl":"https://doi.org/10.1007/s12663-025-02681-3","url":null,"abstract":"<p><strong>Purpose: </strong>This study aims to highlight the significance of implant timing in influencing the insertion depth of implants by measuring the insertion depth of immediate and delayed implants immediately after placement.</p><p><strong>Methods: </strong>The study examined 76 dental implant cases, categorizing them into immediate (placed on the same day as extraction) with 41 cases and delayed (placed at least 2 months after extraction) with 35 cases, based on the timing relative to tooth extraction. The inclusion criteria included patients receiving bone-level implants in the maxilla or mandible with adjacent teeth, while the exclusion criteria comprised patients with prior regenerative procedures or severe periodontitis. Insertion depth was measured using retro-alveolar radiographs and ImageJ software, with reference levels determined by the cemento-enamel junction of adjacent teeth. Statistical analysis was performed to compare immediate and delayed implants using the Shapiro-Wilk test, ANOVA test, and independent-samples t-test.</p><p><strong>Results: </strong>Statistical analysis revealed a significant difference in insertion depth between immediate and delayed implants, with immediate implants exhibiting deeper insertion (mean insertion depth of 4.9608 mm) than delayed implants (mean insertion depth of 3.3799 mm). No significant correlation was found between insertion depth and implant site or length, for immediate implants, nor between insertion depth and implant site for delayed implants.</p><p><strong>Conclusion: </strong>In this study population, immediate implants showed a greater insertion depth, resulting in a more apical vertical position compared to delayed implants. Nonetheless, no discernible correlation was observed between implant site or length and insertion depth for immediate implants, nor between insertion depth and implant site for delayed implants.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1035-1044"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316651/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Tomographic Analysis of the Pterygomaxillary Region in Atrophic Maxilla for the Placement of Pterygoid Implants.","authors":"Renata Nariany Ferreira Lins, Maria Letícia Monteiro Silva, Olavo Barbosa de Oliveira-Neto, Lucas Fortes Cavalcante de Macêdo, Pedro Henrique da Hora Sales","doi":"10.1007/s12663-024-02338-7","DOIUrl":"https://doi.org/10.1007/s12663-024-02338-7","url":null,"abstract":"<p><strong>Introduction: </strong>The objective of this study was to determine the anatomical and technical parameters for the installation of dental implants in the pterygomaxillary region.</p><p><strong>Materials and method: </strong>This is a cross-sectional imaging study. Twenty bilateral computed tomography scans (40 regions) were analyzed using the ImplantViewer program and subsequently tabulated in Microsoft Excel for statistical analysis in the GraphPad program with a 95% confidence level.</p><p><strong>Results: </strong>The average implant length ranged from 14 to 18 mm, with an average of 16.2 mm (1.281 right and 16.05 left). The median density in the maxillary tuber region was 169 HU (211.7) (Hounsfield units), and in the pterygoid region, it was 559.55 HU (2.71.7) <i>p</i>-value < 0.0001. The average distance from the implant head to the floor of the maxillary sinus was 4.98 mm (3.058 right) and 4.41 mm (3.55 left), <i>p</i>-value 0.587. Regarding the pterygoid anatomical radiographic prediction (PARP classification), the most common was type 1, in 19 analyses, followed by type 4 in 7 analyses.</p><p><strong>Conclusion: </strong>Pterygoid implants can be a safe and effective alternative for the rehabilitation of atrophic jaws. Tomographic analysis is essential to define the safe installation of implants in the pterygomaxillary region.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1029-1034"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316625/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of COVID-19 on Maxillofacial Surgical Services in Africa: Implications for Future Practice.","authors":"Fadekemi Olufunmilayo Oginni, Bamidele Adetokunbo Famurewa, Oluwafemi Ayobami Ayilara, Benjamin Fomete, Timothy Ogunlade","doi":"10.1007/s12663-025-02666-2","DOIUrl":"https://doi.org/10.1007/s12663-025-02666-2","url":null,"abstract":"<p><strong>Objective: </strong>To determine the impact of COVID-19 pandemic on maxillofacial surgical service and institutional preparedness for similar pandemic in Africa.</p><p><strong>Methods: </strong>A cross-sectional survey of oral and maxillofacial (OMF) surgeons and senior registrars who practiced in Africa during the COVID-19 pandemic was undertaken. The survey was presented in English and French language to reach almost all OMF surgeons in Africa. Responses were deidentified and analyzed using SPSS version 25.</p><p><strong>Results: </strong>Respondents from 69 hospitals located in 34 cities of 16 African countries, participated in this study. Their practices were in University Teaching hospitals (66.7%), public hospitals (27.5%) and private hospitals (5.8%). COVID-19 pandemic restrictions affected services in 49 (71.0%) hospitals which offered services limited to trauma, infections and oncology. Practice and infection control guidelines were provided by 66 (95.6%) of the hospitals. Fifty-two respondents collected specimens for COVID-19 screening in patients; and 39 (56.5%) were positive. While 27.5% of respondents perceived that their institutions appreciated the need for preparedness against future outbreak, 39.1% were uncertain if their institution did. Preparedness to handle a similar situation in the future is low.</p><p><strong>Conclusion: </strong>COVID-19 pandemic restricted the practice of full scope OMFS in Africa; comprehensive review of the event and development of institutional policies and practices to effectively combat future pandemic is needful.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1144-1150"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316610/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and Tomographic Evaluation of Autogenous Dentin and Cementum Graft from Root Remnants: Clinical Case Report.","authors":"Érica Bugone, Felipe Gomes Dallepiane, Nadine Barbosa Ferreira, Luiza Bastos Nozari, Adriana Corsetti, Angelo Luiz Freddo","doi":"10.1007/s12663-025-02574-5","DOIUrl":"https://doi.org/10.1007/s12663-025-02574-5","url":null,"abstract":"<p><strong>Objective: </strong>To report a clinical case involving the rehabilitation of lost alveolar bone volume through an autogenous root block graft, followed by the placement of an osseointegrated dental implant and subsequent prosthetic rehabilitation.</p><p><strong>Case presentation: </strong>A patient with clinical absence of region of the absence of lower left first molar and a deficiency in the alveolar ridge in that region received an autogenous root graft, using upper left third molar as the donor source. After a postoperative period of 6 months, a surgical reopening was performed for implant placement. Clinical and tomographic assessments revealed significant gains in ridge size, with the graft displaying stability, allowing for implant installation with appropriate primary stability.</p><p><strong>Conclusions: </strong>Autogenous dental root grafts represent a potential alternative for restoring the alveolar ridge in patients who require rehabilitation prior to dental implant placement. Compared to other available techniques, the root graft offers the advantage of lower morbidity and reduced costs.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1062-1071"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316606/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Stress Distribution in Peri-implant Bone of Implants Restored with Screw, Cement, and Cement-Screw Retained Crowns Using Three Crown Materials: a Three-dimensional Finite Element Analysis.","authors":"Ankita K Pasad, Jyoti B Nadgere, Janani V Iyer","doi":"10.1007/s12663-025-02565-6","DOIUrl":"https://doi.org/10.1007/s12663-025-02565-6","url":null,"abstract":"<p><strong>Aim: </strong>To comparatively evaluate stress distribution in the peri-implant bone in three-dimensional finite element (3D FE) models of titanium implants with different crowns-Metal Ceramic, Zirconia, Poly Ether Ether Ketone (PEEK) retained by three methods-screw, cement, cement-screw under functional load.</p><p><strong>Settings and design: </strong>An implant crown can be retained by screw, cement or a combination of the two-cement-screw. Materials for fabricating implant restorations vary which distribute stress differently in the peri-implant bone.</p><p><strong>Materials and methods: </strong>Nine 3D FE models depicting the restoration-implant-bone complex in the mandibular premolar region were constructed using CAD Solidworks software. The Altair pre-processor was used for model meshing. Young's modulus and Poisson's ratio were allotted to each material. Occlusal loading (100N) in vertical and oblique (30°) directions was performed on the 3D FE models and von Mises stresses generated in the peri-implant bone were visualised, evaluated according to colour code, numerically recorded, assessed and compared.</p><p><strong>Results: </strong>For the vertical and inclined force models, stress distribution in peri-implant bone was higher in all screw retained models and lower for all cement retained and cement-screw retained models. Peri-implant bone stresses were comparable for cement retained and cement-screw retained prosthesis.</p><p><strong>Conclusion: </strong>Any of the nine combinations of crown materials-Metal Ceramic, Zirconia, PEEK and retention methods-screw retained, cement retained, cement-screw retained can be used clinically as they have stress varying for less than 10% across all models.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1054-1061"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316649/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ameloblastoma, a Potential Diagnostic Pitfall in Head-Neck Oncology: An Experience From a Tertiary Cancer Care Institute.","authors":"Sarbashis Hota, Debanjan Ghosh, Dipkana Das, Namrata Maity, Srabani Chakrabarti","doi":"10.1007/s12663-025-02665-3","DOIUrl":"https://doi.org/10.1007/s12663-025-02665-3","url":null,"abstract":"<p><strong>Introduction: </strong>The significant bulk of oncopathology cases coming from head-neck surgery comprise cases of squamous cell carcinoma, particularly from an Indian perspective, due to indulgence in the habit of tobacco chewing. Odontogenic tumours, though not very uncommon, often remain outside clinical suspicion.</p><p><strong>Case details: </strong>Here, we describe four cases of ameloblastoma initially misdiagnosed as other malignant entities. Two of the cases were associated with mandible, two others  arose from uncommon location; one from maxilla presenting as a palatal mass and the other from sinonasal cavity.</p><p><strong>Conclusion: </strong>With its diverse histomorphological spectrum, ameloblastoma can be quite confusing in small biopsy specimens in head-neck oncology and can be easily misdiagnosed if not included in the differentials. Virtually in every odd cases of head-neck neoplasm with bony involvement, this differential should be borne in mind to alleviate the hazard of misdiagnosing it as malignancy.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"1202-1207"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316602/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Axial and Angled Implants on Marginal Bone Loss in All-on-Four Implant-Supported Rehabilitation: A Retrospective Cohort Study.","authors":"Dercelino Bittencourt Junior, Erton Masssamitsu Miyasawa, Valdir Gouveia Garcia, Rafael Scaf de Molon, Flávia Noemy Gasparini Kiatake Fontão","doi":"10.1007/s12663-025-02508-1","DOIUrl":"https://doi.org/10.1007/s12663-025-02508-1","url":null,"abstract":"<p><strong>Objectives: </strong>The aim of this study was to compare marginal bone loss levels between axially and angled installed implants in maxillary rehabilitation utilizing the All-on-Four concept, while also examining the impact of terminal cantilever size on implant/prosthesis set survival.</p><p><strong>Materials and methods: </strong>This retrospective cohort study involved 11 patients (44 implants) who received implant-supported prostheses with immediate loading. Radiographic evaluations were conducted on the day of prosthesis delivery, including panoramic and periapical radiographs, establishing the baseline (T0). Follow-up periapical radiographs were taken at 6 months (T1), 1 year (T2), and 2 years (T3) post-prosthesis delivery. Panoramic radiographs were used to determine implant angulation and the size of terminal cantilevers. Marginal bone loss on the mesial and distal aspects of each implant was assessed across study periods.</p><p><strong>Results: </strong>Statistical analysis revealed no significant difference in marginal bone loss between axially and inclined implants. Terminal cantilever lengths ranged from 6.11 to 17.15 mm, with a decrease observed in cases with implants tilted up to 30°. However, no significant difference in cantilever lengths was found between the two groups (group 1: tilts 0°-30°, group 2: tilts above 30°). The survival rate of the implant/prosthesis sets was 100%.</p><p><strong>Conclusion: </strong>In conclusion, there were no statistically significant differences in marginal bone loss between axial and inclined implants. Implant inclination allowed for prostheses with smaller terminal cantilevers, contributing to a balanced distribution of stresses on the implant/prosthesis set. Further randomized clinical trial should be conducted to confirm the presented findings.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"978-988"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316617/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776501","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of Accuracy of Dental Implant Placement Between Freehand and Guided Implant Surgery-A Systematic Review and Meta-analysis.","authors":"Debanwita Dutta, Arun Kharavela Mohanty, Anjana Raut, Dipankar Pal, Mousumi Mahato, Amulya Jain, Dibya Falgoon Sarkar","doi":"10.1007/s12663-025-02579-0","DOIUrl":"https://doi.org/10.1007/s12663-025-02579-0","url":null,"abstract":"<p><strong>Statement of problem: </strong>Conventional freehand implant placement protocols relied on the pre-operative radiographs for planning of implant placement. The need for a more predictable and planned approach led to the advent of computer-assisted implant placement protocols.</p><p><strong>Purpose: </strong>A prosthetically driven implant placed according to the planned implant position helps the surgeon avoid complications like inadvertent damage to surrounding vital structures, undesired implant angulation, bone loss or inadvertent perforation. Surgical guides serve as a template to transfer the planned implant position to the actual anatomic site with improved predictability and accuracy.</p><p><strong>Materials and methods: </strong>Six electronic databases were thoroughly searched with specific MeSH terms for randomized control trials, non-randomized control trials, prospective studies and in vitro studies in last ten years till 2023 for the evaluation of accuracy between freehand and fully guided implant placement protocols following the PRISMA 2020 guidelines for this systematic review and meta-analysis.</p><p><strong>Results: </strong>The initial search revealed 2202 articles from which 10 articles were selected. A fully guided technique uses surgical guide for placement of both the drills and the implant, whereas the conventional freehand approach relies only upon the pre-operative radiographs and the surgeon's expertise for implant placement. Angular deviation and apical deviation are the most vulnerable parameters susceptible to error without the use of a surgical guide.</p><p><strong>Conclusion: </strong>Accuracy of fully guided implant surgery is better than freehand implant surgery in all the parameters mentioned above. Significant improvement was noticed for angular deviation, apical deviation, 3D deviation (base) and 3D deviation (apex). This is the first systematic review to include the comparison of linear and 3D spatial deviation and compare the six deviation parameters together.</p>","PeriodicalId":47495,"journal":{"name":"Journal of Maxillofacial & Oral Surgery","volume":"24 4","pages":"865-876"},"PeriodicalIF":0.6,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12316628/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144776578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}