International Journal of Implant Dentistry最新文献

{"title":"Modified split bone block technique for reconstruction of the atrophic edentulous maxilla: a retrospective clinical study.","authors":"Serhat Can, Sinem Büşra Kıraç Can, Gühan Dergin","doi":"10.1186/s40729-026-00724-z","DOIUrl":"https://doi.org/10.1186/s40729-026-00724-z","url":null,"abstract":"<p><strong>Purpose: </strong>This study aimed to evaluate the modified split bone block technique in patients with an atrophic maxilla and to assess its clinical outcomes in terms of horizontal ridge width gain and implant outcomes.</p><p><strong>Methods: </strong>This retrospective clinical study included 18 patients who underwent reconstruction of the atrophic maxilla using the modified bilateral split bone block technique between January 2020 and April 2024. Preoperative and postoperative evaluations included clinical examinations and radiographic assessments to evaluate ridge width changes and implant outcomes after graft healing. The mean follow-up period after prosthetic loading was 18.6 ± 8.6 months (range, 12-44 months). Postoperative complications such as dehiscence, infection, and graft resorption were also recorded.</p><p><strong>Results: </strong>A total of 18 patients (10 females, 8 males; mean age, 54.22 ± 7.12 years) were included. The patient-level mean ridge width increased from 2.39 ± 0.45 mm at T0 to 7.27 ± 0.89 mm at T1, with a mean horizontal ridge width gain of 4.88 ± 0.66 mm (95% CI, 4.55-5.21 mm; p < 0.001). Minor complications were observed in four patients, including transient paresthesia in three patients and limited wound dehiscence in one patient, which healed without graft loss. After a mean healing period of 4.5 ± 0.8 months, 96 implants were placed, all of which demonstrated 100% survival at the 12-month follow-up, with no pain, infection, or mobility observed during clinical evaluation.</p><p><strong>Conclusions: </strong>The modified bilateral split bone block technique resulted in substantial horizontal ridge width gain and favorable short-term implant outcomes in this selected patient cohort. The technique may represent a clinically useful reconstructive option for appropriately selected patients with sufficient residual bone height.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Internal fit of cobalt-chromium and zirconia implant abutments fabricated using different techniques: a micro-computed tomography study.","authors":"Pedro Molinero-Mourelle, Seyed Ali Mosaddad, Rocio Cascos-Sanchez, Margarita Chevalier Del Río, Gülce Çakmak, Andrea Roccuzzo, Miguel Gómez-Polo","doi":"10.1186/s40729-026-00718-x","DOIUrl":"https://doi.org/10.1186/s40729-026-00718-x","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the internal fit at the implant-abutment interface of zirconia and cobalt-chromium abutments fabricated using different techniques by micro-computed tomography (micro-CT).</p><p><strong>Methods: </strong>Twenty screw-retained abutments were divided into 4 groups (n = 5): milled zirconia (ZrCAD), milled cobalt-chromium (Co-CrMill), laser-sintered cobalt-chromium (Co-CrLS), and cast cobalt-chromium (Co-CrCL). Specimens were subjected to cyclic loading (300,000 cycles, 200 N) and thermocycling (10000 cycles, 5 to 50 °C). Internal fit was assessed by micro-CT at 3 regions and 3 spatial planes (180 measurements). Data were analyzed with Kruskal-Wallis and Bonferroni-Holm tests (α = 0.05).</p><p><strong>Results: </strong>Significant differences in internal fit were found (p < 0.05). Co-CrLS showed the highest internal gap values (26.75 ± 7.05 μm, 87.00 ± 3.26 μm, 86.50 ± 5.76 μm). Significant differences were observed between Co-CrLS and ZrCAD (Region 1, p = 0.003), Co-CrMill (Regions 1 and 2, p = 0.003-0.004), and Co-CrCL (Regions 1 and 3, p = 0.003-0.001). Total values also differed between Co-CrMill and Co-CrLS (p = 0.012) and Co-CrCL and Co-CrLS (p = 0.002).</p><p><strong>Conclusions: </strong>Internal fit differed among the evaluated workflows. Laser-sintered cobalt-chromium abutments showed the least favorable adaptation, whereas milled and cast cobalt-chromium showed lower gap values; zirconia showed intermediate descriptive values. The clinical significance of these differences remains uncertain.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149224074","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical outcomes of a two-piece zirconia dental implant system.","authors":"Thomas Mehnert, Michael Noack, Philip Simon, Florian Beuer, Stefano Pieralli","doi":"10.1186/s40729-026-00717-y","DOIUrl":"10.1186/s40729-026-00717-y","url":null,"abstract":"<p><strong>Background: </strong>Data on market-available two-piece zirconia (ZrO₂) dental implants are limited. Therefore, the aim of this retrospective study was to evaluate the clinical performance of a commercially available ZrO₂ implant system over a 24-month period.</p><p><strong>Materials and methods: </strong>In a single private dental office, 35 patients received 63 two-piece ZrO₂ implants for the support of single crowns (SC), fixed dental prostheses (FDP), and overdentures between September 2017 and October 2021. To ensure cohort homogeneity, 31 patients, which received 44 implants to support SCs, were selected for statistical analysis. An anonymized database was used to examine survival and complication rates, marginal bone loss (MBL), and soft tissue parameters. Patients were followed within a defined recall period of at least two years. Descriptive statistics (95% CI) were calculated for MBL, with paired t-tests and one-way ANOVA for comparisons. Associations and clinical parameters were analyzed using Chi-square/Fisher's exact, paired t-test, and Wilcoxon tests (p ≤ 0.05).</p><p><strong>Results: </strong>During the observation period, no implant losses or implant fractures occurred. The mean MBL was 0.24 ± 0.58 mm at 6 months, 0.18 ± 0.62 mm at 12 months, and 0.20 ± 0.66 mm at 24 months. These values were statistically within the range of random variation. MBL differed between the maxilla and mandible, but not significantly. Probing depths increased significantly over time but did not exceed 2.78 ± 0.26 mm. Bleeding on probing mean values showed a continuous decrease from 9.1 ± 13.7% at baseline to 1.1 ± 4.3% after 24 months, with significant differences between baseline and 24 months, as well from 6 to 24 months (p = 0.002 and p = 0.003 respectively).</p><p><strong>Conclusion: </strong>Over 24 months, two-piece ZrO₂ implants exhibited a 100% survival rate with no observed fractures. MBL was reduced, especially in augmented sites. The presented data support the short-term suitability of this implant system for single-unit restorations.</p><p><strong>Clinical trial number: </strong>Not applicable.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13589000/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149001737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"In-vitro characterization and evaluation of innovative surface modifications of zirconia implants for the optimization of hard and soft tissue management.","authors":"Fabian Angerer, R Smeets, J T Strenge, M Gosau, E Bibiza, B Schick, K Eisenmenger, J H Ehlers, A Henningsen, S Fuest","doi":"10.1186/s40729-026-00713-2","DOIUrl":"10.1186/s40729-026-00713-2","url":null,"abstract":"<p><strong>Purpose: </strong>This study focuses on the characterization and evaluation of innovative surface modifications of zirconia implants aimed at optimizing hard and soft tissue management.</p><p><strong>Methods: </strong>The cytocompatibility of newly developed ceramic implant coatings was assessed. Five different surface types were investigated: uncoated zirconia (Zr), zirconia coated with pure titanium (ZrTi), zirconia coated with calcium phosphate (CaP), zirconia coated with hydroxyapatite (HA) and zirconia coated with calcium phosphate-hydroxyapatite (CaP/HA). Cytocompatibility was assessed using L929 mouse fibroblasts and MC3T3 pre-osteoblasts. Testing was performed in both direct and indirect cell contact with the materials. In the direct contact setup, cells were cultured for 24 h on the test surfaces, followed by live/dead staining and fluorescence microscopy. In the indirect setup, material extracts were prepared and cell viability was quantified after 72 h using lactate dehydrogenase (LDH) and cell proliferation (XTT) assays.</p><p><strong>Results: </strong>All tested surfaces demonstrated good cytocompatibility without significant cytotoxic effects. Supplementary scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) analyses confirmed the successful application of the coatings and provided detailed insight into surface topography and elemental composition.</p><p><strong>Conclusion: </strong>Calcium phosphate and hydroxyapatite-coated zirconia implants represent a promising biocompatible alternative to titanium-based surfaces, with the potential to improve tissue integration and long-term clinical outcomes in ceramic dental implantology.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13546240/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148897202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prefabricated CAD/CAM zirconia membrane versus contour augmentation with early implant placement in the anterior maxilla: a randomized controlled clinical trial.","authors":"Mohammed Mashhout Anas, Amr Mostafa Gabr, Yasser El-Makaky, Mohamed H Helal","doi":"10.1186/s40729-026-00711-4","DOIUrl":"10.1186/s40729-026-00711-4","url":null,"abstract":"<p><strong>Background: </strong>Horizontal ridge deficiencies in the anterior maxilla frequently compromise ideal implant positioning and esthetic outcomes. This randomized controlled clinical trial evaluated the clinical performance of customized CAD/CAM zirconia membranes compared with conventional collagen membranes for guided bone regeneration (GBR) performed simultaneously with early implant placement.</p><p><strong>Methods: </strong>Twenty systemically healthy patients requiring single-tooth replacement in the anterior maxilla underwent early implant placement (4-8 weeks after tooth extraction) combined with simultaneous contour augmentation using a composite graft of autogenous bone and deproteinized bovine bone mineral (1:1). Participants were randomly assigned to receive either a customized CAD/CAM zirconia membrane (test group, n = 10) or a double-layer collagen membrane (control group, n = 10). The primary outcome was horizontal bone gain (HBG) at 6 months, assessed by standardized CBCT superimposition. Secondary outcomes included soft tissue healing evaluated using the Modified Wound Healing Index (MWHI), membrane exposure (wound dehiscence), and patient-reported postoperative pain assessed using a visual analogue scale (VAS).</p><p><strong>Results: </strong>All implants survived during the 6-month follow-up period (100% survival rate). Mean HBG was 6.18 ± 0.60 mm in the test group and 5.85 ± 0.37 mm in the control group, with no statistically significant difference between groups (p = 0.158). Membrane exposure occurred in all patients receiving customized zirconia membranes (10/10, 100%), whereas no membrane exposure was observed in the collagen membrane group (0/10, 0%). Despite the higher exposure rate, graft stability and horizontal bone regeneration were not adversely affected. Soft tissue healing was significantly more favorable in the collagen membrane group. Postoperative pain decreased significantly over time in both groups, with no significant intergroup differences.</p><p><strong>Conclusions: </strong>Customized CAD/CAM zirconia membranes achieved horizontal bone augmentation comparable to conventional collagen membranes when used for simultaneous GBR during early implant placement. Although customized zirconia membranes were associated with a substantially higher membrane exposure rate, regenerative outcomes and implant survival remained unaffected, indicating that customized rigid barriers may represent a predictable alternative for horizontal ridge augmentation while offering potential advantages in surgical precision and procedural efficiency.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov NCT06987149.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13504002/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148812701","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical performance of a conometric retention system for single implant restorations: 1-year analysis of a prospective multicenter study.","authors":"Peter Gehrke, Octavio Weinhold, Pelayo Antuna, Anthony Bendkowski, Maria Luisa Broseta, Ernest Cholakis, Lyndon Cooper, Thomas J McGarry, Martin Wanendeya, Juliane Kreis, Marco Toia","doi":"10.1186/s40729-026-00708-z","DOIUrl":"10.1186/s40729-026-00708-z","url":null,"abstract":"<p><strong>Purpose: </strong>Conventional screw- and cement-retained single implant restorations are associated with biological and technical complications. Friction-retained conometric concepts have been proposed as an alternative; however, clinical evidence for single crowns, particularly from prospective multicenter studies, remains limited. This study evaluated the 1-year clinical performance of a conometric retention system for implant-supported single crowns.</p><p><strong>Methods: </strong>This prospective multicenter study was conducted at nine clinical centers in Europe and North America. Subjects requiring single-tooth replacement in the maxilla or mandible received one implant restored with a prefabricated 5.9° conometric abutment and a titanium nitride-coated coping. All-ceramic crowns were extraorally bonded and seated without cement or screws. Radiographs were obtained at implant placement, delivery of the permanent restoration, and after 1 year. Primary outcomes were implant and prosthetic survival. Secondary outcomes included marginal bone level (MBL) changes, bleeding on probing, plaque, probing pocket depth, and complication rates. Descriptive statistics and confidence intervals were calculated.</p><p><strong>Results: </strong>A total of 144 implants were included in the per-protocol analysis. Three implants failed after delivery of the permanent restoration, resulting in a 1-year implant survival rate of 96.7%. Of 131 restorations evaluated at 1 year, 4 showed irreversible loss of conometric retention and were classified as prosthetic failures. In total, 22 prosthetic complication events were recorded, including 18 reversible technical complications (12.5%) and 4 irreversible failures, corresponding to an overall complication rate of 15.3%. Mean MBL change was - 0.11 mm from implant placement to PR and - 0.02 mm from PR to 1 year.</p><p><strong>Conclusions: </strong>Within the limitations of this 1-year analysis, the investigated conometric retention system demonstrated high implant and prosthetic survival rates and limited marginal bone changes. However, a clinically relevant incidence of technical complications, including irreversible loss of conometric retention, was observed during the first year of function. These findings suggest that the conometric concept may require careful case selection and clinical monitoring. Long-term follow-up is required to further evaluate the clinical stability and prosthetic reliability of this retention concept over time.</p><p><strong>Trial registration: </strong>ClinicalTrials.gov, ID, NCT04063878, August 20, 2019.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13490037/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148792813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Prospective clinical study to evaluate the survival of two-piece zirconia implants: a single-center study. 36-month results.","authors":"Marie-Elise Jennes, Zhen Mao, Ece Atay, Insa Herklotz, Margarita Bessonova, Jeremias Hey, Florian Beuer","doi":"10.1186/s40729-026-00707-0","DOIUrl":"https://doi.org/10.1186/s40729-026-00707-0","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the 36-month survival and clinical outcomes of two-piece zirconia implants restored with screw-retained glass-ceramic crowns on PEKK abutments.</p><p><strong>Methods: </strong>This prospective single-center clinical study evaluated implant survival as the primary outcome, with secondary outcomes including peri-implant soft tissue parameters, marginal bone level changes, and patient-reported outcome measures. Twenty-four patients received single CERALOG Hexalobe two-piece zirconia implants manufactured by ceramic injection molding (CIM) in healed sites. After 6-month submerged healing, implants were restored with provisional screw-retained crowns on PEKK abutments, followed by definitive lithium disilicate crowns (IPS e.max Press) on PEKK abutments secured with titanium abutment screws (25 Ncm). Clinical and radiographic examinations were performed at implant placement, re-entry, definitive loading, and at 12-, 24-, and 36-month follow-ups. Implant survival was analyzed using Kaplan-Meier estimates.</p><p><strong>Results: </strong>Of 23 evaluable implants, nine failed within the first 12 months: six due to failed osseointegration (two at re-entry, three during provisional restoration, one after definitive loading) and three due to implant fracture (one during provisional restoration, two after definitive loading). Kaplan-Meier survival rate was 60.9% (95% CI; 41-81%) at 12 months. No additional failures occurred between 12 and 36 months. Peri-implant soft tissue parameters of surviving implants showed favorable trends (PPD: 2.7 ± 0.7 mm at 12 months, 2.0 ± 0.5 mm at 24 months, 1.9 ± 0.8 mm at 36 months; BOP: 26%, 21%, and 18%, respectively; MGI: 0.38 ± 0.36 at 12 months, 0.40 ± 0.76 at 24 months, 0.21 ± 0.48 at 36 months). At the implant level, peri-implant mucositis was diagnosed in 7 of 13 implants (53.8%) at 36 months; no peri-implantitis was observed throughout the observation period. Mean DIB was 1.9 ± 0.6 mm at definitive loading, 1.6 ± 0.5 mm at 24 months, and 1.5 ± 0.9 mm at 36 months. One abutment screw loosening at 24 months was successfully managed. Patients with surviving implants reported high satisfaction scores (overall satisfaction: 5.0 ± 0.0 at 36 months).</p><p><strong>Conclusions: </strong>The 39.1% early failure rate within the first 12 months was followed by stable marginal bone levels through 36 months in implants that achieved successful osseointegration. However, peri-implant mucositis remained prevalent at 36 months, underlining the need for peri-implant maintenance. The early post-loading period represents the critical determinant of long-term implant survival in this system. Extended follow-up through 60 months is ongoing.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13490025/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148792816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 CBCT and dental-MRI for detecting peri-implant bone defects at single titanium implants: an in-vitro pilot study.","authors":"Katharina Hartung, Nikolai Miotk, Arne Lauer, Franz Sebastian Schwindling, Mathias Nittka, Ali Özen, Ute Ludwig, Jan-Bernd Hövener, Michael Bock, Tabea Flügge, Anne-Katrin Eisenbeiss, Peter Rammelsberg, Sabine Heiland, Martin Bendszus, Tim Hilgenfeld","doi":"10.1186/s40729-026-00709-y","DOIUrl":"https://doi.org/10.1186/s40729-026-00709-y","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the reliability and accuracy of optimized dental-MRI (dMRI) for detecting and classifying peri-implant bone defects around single titanium implants.</p><p><strong>Methods: </strong>48 titanium implants were inserted into bovine ribs. 24 implants had surrounding standardized defects (1-wall, 2-wall, 3-wall, 4-wall) in two sizes (1 mm and 3 mm), while the other 24 implants showed no peri-implant bone defects. CBCT and dMRI were performed and analyzed twice by two readers. 3 Tesla MRI was conducted using an innovative intraoral coil and a novel, T1-weighted sequence for metal artifact reduction (CS-SEMAC). Cohen's Kappa (κ), sensitivity, and specificity were assessed for bone defect detection, size, and type. Modality differences were evaluated using the exact McNemar test and Firth penalized-likelihood logistic regression.</p><p><strong>Results: </strong>For bone defect detection, almost perfect intra-/inter-rater reliability (κ-value range: 0.958-1) was found for both imaging modalities, with high sensitivity/specificity (CBCT 100%/100%, 95% CI 0.962-1.000/0.962-1.000; MRI 98%/100%, 95% CI 0.927-0.998/0.962-1.000), confirmed by Firth regression (p = 0.22). For defect type classification, both CBCT (κ-value range: 0.884-0.913) and MRI (κ-value range: 0.794-0.942) demonstrated almost perfect intra-/inter-rater reliability. Overall sensitivity/ specificity were 86%/99% (95% CI 0.780-0.926 and 0.985-0.995) for CBCT and 84%/99% (95% CI 0.755-0.910 and 0.985-0.995) for dMRI, with no significant difference between modalities (Firth-adjusted OR 0.85, 95% CI 0.38-1.88, p = 0.68).</p><p><strong>Conclusions: </strong>Under optimized ex vivo conditions, dMRI offers a promising reliability and accuracy for identifying and classifying peri-implant bone defects around single titanium implants. High-resolution dMRI facilitates radiation-free, three-dimensional peri-implant tissue visualization.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13493749/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148792776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The extended pink esthetic score (E-PES): a reliability and multidirectional score-behavior study for peri-implant esthetic assessment.","authors":"Hani ElNahass, Suzy N Naiem, Bilal Al Nawas, Omnia K Tawfik","doi":"10.1186/s40729-026-00705-2","DOIUrl":"10.1186/s40729-026-00705-2","url":null,"abstract":"<p><strong>Objectives: </strong>The Pink Esthetic Score (PES) is widely used to assess peri-implant soft-tissue esthetics around single-tooth implant restorations; however, frontal-view assessment may incompletely capture three-dimensional peri-implant features such as buccolingual contour, emergence profile, and mucosal scarring. This study introduced the Extended Pink Esthetic Score (E-PES), a multidirectional assessment framework incorporating frontal, profile, and occlusal views.</p><p><strong>Materials and methods: </strong>Thirty single-tooth implant restorations in the maxillary esthetic zone were evaluated using standardized photographs. Twenty blinded evaluators (five periodontists, five prosthodontists, five orthodontists, and five general practitioners) scored each case using two assessment systems. The traditional frontal-view assessment using the seven-variable PES, then the multidirectional E-PES assessment using frontal, profile, and occlusal views with nine variables. The E-PES retained the seven core PES variables, with emergence profile and mucosal scarring added to the variables to give a multidirectional view. Assessments were repeated after a three-week washout period with randomized image order. Reliability, agreement, and score-distribution analyses were performed.</p><p><strong>Results: </strong>A total of 600 first-round assessments were completed for each scoring system and included in the paired frontal-view versus multidirectional score analysis. Original PES and multidirectional E-PES-compatible total scores averaged 9.98 ± 3.96 and 9.76 ± 3.52, respectively, yielding a small but statistically significant mean paired difference of 0.22 points (P < 0.001). Scores differed in 442 of 600 paired assessments (73.67%). Agreement between frontal-view and multidirectional total scores remained excellent (ICC = 0.919; ICC = 0.958). The alveolar process/buccal contour parameter showed the greatest mean shift, decreasing from 1.31 ± 0.69 to 1.10 ± 0.74 (P < 0.001). Inter-examiner reliability for multidirectional total scores was moderate at the individual-rater level (single-measure ICC = 0.633) and high at the group level (average-measure ICC = 0.972).</p><p><strong>Conclusions: </strong>E-PES preserved the reliability of the original PES while identifying clinically relevant esthetic differences not fully captured by frontal-view assessment alone. Multidirectional evaluation particularly enhanced assessment of alveolar-process/buccal-contour morphology, supporting E-PES as a practical refinement of PES for more comprehensive peri-implant esthetic evaluation.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13424060/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148630330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction Note: Prosthetic rehabilitation of patients with maxillary oncology defects using zygomatic implants.","authors":"Davit Mathevosyan, Sergo Hovhannisyan, Karen Mashinyan, Levon Khachatryan, Aram Badalyan, Gagik Hakobyan","doi":"10.1186/s40729-026-00704-3","DOIUrl":"10.1186/s40729-026-00704-3","url":null,"abstract":"","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-07-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13365093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148430363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}