International Journal of Implant Dentistry最新文献

{"title":"Peri-implant marginal bone topography at the uncover stage: a classification proposal and retrospective observational study.","authors":"Karen Villarreal-Arizpe, I-Ching Wang, Priyanka Pitchumani, Oscar Durán-Garnica, Hsun-Liang Chan","doi":"10.1186/s40729-026-00675-5","DOIUrl":"10.1186/s40729-026-00675-5","url":null,"abstract":"<p><p>Most studies have examined early crestal bone loss/remodeling on radiographs after the first year of loading and subsequent late bone loss. Limited research has investigated the patterns of bone remodeling in 360 degrees during the initial stages of implant healing. This study aimed to classify peri-implant marginal bone remodeling patterns at the implant uncovering stage. A total of 74 patients with 106 implants were included. At uncovering stage under an operating microscope, peri-implant bone conditions were recorded and categorized into four types: Type 1A (facial or lingual remodeling ≤ 2 mm with intact interproximal bone), Type 1B (facial or lingual remodeling ≤ 2 mm with interproximal remodeling ≤ 2 mm), Type 2 (circumferential remodeling ≤ 2 mm), and Type 3 (bone remodeling > 2 mm at any site). Results showed that 43% of implants exhibited no bones loss, while 57% presented various degree of bone remodeling, of which 58% Type 1A, 18% Type 1B, 17% Type 2, and 7% Type 3 in this specific cohort. Multinomial logistic regression identified ridge preservation history, simultaneous guided bone regeneration, and age as significant predictors of the bone remodeling variations. This new classification provides a framework for assessing early bone remodeling pattern and could serve as a foundation for future studies exploring the relationship between early remodeling, peri-implantitis risk, and long-term implant outcomes.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13187071/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623003","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":"Cost-effectiveness of tooth preservation versus implant for persistent periapical pathosis in mandibular second molars.","authors":"Muhammad Muthar Shaikh, Nighat Naved, Asif R Khowaja, Fahad Umer","doi":"10.1186/s40729-026-00678-2","DOIUrl":"10.1186/s40729-026-00678-2","url":null,"abstract":"<p><strong>Introduction: </strong>Persistent apical periodontitis in mandibular second molars presents a clinical decision between tooth preservation and extraction with implant replacement. Although intentional replantation (IR), surgical endodontic treatment, and implant therapy demonstrate acceptable outcomes, their long-term economic value remains unclear. This study evaluated the cost-effectiveness of tooth-preserving strategies versus extraction with implant placement.</p><p><strong>Materials and methods: </strong>A Markov model simulated 40-year-old patients with persistent apical periodontitis in a mandibular second molar from a United States (US) private payer perspective. Three strategies were compared: IR, surgical endodontic treatment, and extraction with implant placement. The model used 6-month half cycles over 39.3 years with 3% annual discount rate. Transition probabilities were derived from systematic reviews and clinical studies. Costs were obtained from the American Dental Association (ADA) 2022 survey adjusted to 2025 USD. Effectiveness was expressed as retained tooth-years or implant-years. Deterministic and probabilistic sensitivity analyses using 10,000 Monte Carlo simulations assessed uncertainty.</p><p><strong>Results: </strong>IR yielded 16.09 retained tooth-years at USD 2,676. Surgical endodontic treatment provided an additional 0.32 years corresponding to 16.41 tooth-years at an Incremental Cost-Effectiveness Ratio (ICER) of USD 4,279.66. Extraction with implant placement achieved 19.08 implant-years at an ICER of USD 580.60. Probabilistic analysis showed IR was cost-effective at lower willingness-to-pay thresholds, whereas implant placement became preferred beyond approximately USD 600.</p><p><strong>Conclusion: </strong>In mandibular second molars with persistent apical periodontitis, IR proved economically favorable in the short-term, while extraction with implant placement offered superior long-term effectiveness at reasonable incremental costs for patients with extended life expectancy.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13139575/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147623051","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 effect of dietary factors and nutrients on osseointegration, dental implant success and survival: a scoping review.","authors":"Buyanbileg Sodnom-Ish, Sebastian Kühl, Valentin Herber, Michael M Bornstein","doi":"10.1186/s40729-026-00680-8","DOIUrl":"10.1186/s40729-026-00680-8","url":null,"abstract":"<p><strong>Purpose: </strong>This review aimed to evaluate the existing evidence on the effects of dietary factors and nutrients on dental implant osseointegration.</p><p><strong>Methods: </strong>This scoping review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Extension for Scoping Reviews (PRISMA-ScR) guidelines. Electronic searches were performed in PubMed, Web of Science, and the Cochrane Library, supplemented by manual searches of relevant journals. Human clinical studies published up to November 2025 were included.</p><p><strong>Results: </strong>Out of 592 screened studies, a total of 27 clinical studies were included, comprising 13 cohort studies, 8 randomized controlled trials, 3 cross-sectional studies, 2 retrospective case-control studies, and 1 uncontrolled interventional study. Most studies focused on vitamin D, whereas evidence for other micronutrients was limited. Fifteen studies reported a positive association between vitamin D and implant osseointegration. Five studies reported no significant association, while two studies investigating vitamin B and vitamin C showed that vitamin B did not influence postoperative pain or paresthesia and vitamin C improved soft tissue healing. Sufficient vitamin D status was associated with significantly higher implant stability quotient (ISQ) values, reduced early dental implant failure (EDIF), and lower marginal bone loss (MBL).</p><p><strong>Conclusion: </strong>Current evidence indicates that sufficient vitamin D status may support early osseointegration and implant stability, while deficiency is linked to less favorable early outcomes. Well-designed randomized controlled trials with standardized outcome measures, longer follow-up, and evaluation of additional micronutrients are needed.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13187093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147622987","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 dynamic computer-assisted implant surgery among novice operators using three different patient registration methods: an in-vitro study.","authors":"Ryo Yamamoto, Toshiki Nojiri, Daichi Yoshida, Yutaro Oyamada, Akihiro Fukutoku, Kazuhiro Kon","doi":"10.1186/s40729-026-00666-6","DOIUrl":"10.1186/s40729-026-00666-6","url":null,"abstract":"<p><strong>Introduction: </strong>Accurate implant placement with computer-assisted implant surgery (CAIS) is critical to ensuring long-term success. Dynamic computer-assisted implant surgery (d-CAIS) enhances surgical precision through real-time feedback; however, its accuracy and procedural efficiency when used by novice operators remain insufficiently investigated. This study evaluated how different registration methods in d-CAIS influence implant placement accuracy and procedural time when performed by novice operators.</p><p><strong>Materials and methods: </strong>In this in vitro study, three registration methods were assessed (surface-based registration: ND, marker-based registration: XC, and pair-point registration: XM groups). Five novice operators, defined as dentists with less than five years of implant experience, placed 25 implants per group (75 total) in partially edentulous maxillary models. Postoperative cone-beam computed tomography scans were used to measure deviations at the implant entry point, apex, vertical depth, and angle. Statistical analyses were performed to compare group differences.</p><p><strong>Results: </strong>Mean three-dimensional deviations at the implant entry point were 0.97 mm (ND), 0.68 mm (XC), and 0.72 mm (XM); at the apex: 1.33 mm, 0.78 mm, and 0.90 mm, respectively. Vertical depth deviations at the apex were comparable across groups: 0.62 mm (ND), 0.51 mm (XC), and 0.54 mm (XM). Angular deviation was highest in the ND group (3.16°) compared to the XC (1.18°) and XM (0.97°) groups, with significant differences observed between ND and both XC and XM. Average procedural time was longest in the ND group and shortest in the XM group, with statistically significant differences between ND and the other two groups.</p><p><strong>Conclusions: </strong>In novice operators, d-CAIS enabled stable control of implant entry point position and insertion depth regardless of the registration method used. In contrast, angular accuracy and procedural efficiency were influenced by registration strategies and system-related characteristics. These findings suggest that selection of appropriate registration methods may play an important role in optimizing accuracy and workflow efficiency during the early learning phase of d-CAIS.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13038723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147581402","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 efficacy of injectable bone fillers for alveolar ridge preservation: a microcomputed tomographic analysis.","authors":"A Ramanauskaite, S Kallab, M Agirman, P Parvini, K Obreja, J Lorenz, F Schwarz, K Becker","doi":"10.1186/s40729-026-00673-7","DOIUrl":"10.1186/s40729-026-00673-7","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the efficacy of injectable bone fillers for alveolar ridge preservation (ARP).</p><p><strong>Materials and methods: </strong>Mandibular premolars (P2, P3, P4) were bilaterally extracted in nine beagle dogs. Each tooth underwent hemisection, with the mesial root devitalized and filled with calcium hydroxide, while the distal roots were extracted. This resulted in six sockets per dog, which were randomly assigned to four injectable test materials (T1-T4), one control (C), and one negative control group (N). Primary wound closure was achieved in all groups except for N. After 12 weeks, tissue blocks were analyzed using micro-computed tomography (micro-CT). The primary outcome was bone volume fraction (BV/TV, %). Secondary outcomes included trabecular thickness (Tb.Th, mm), trabecular separation (Tb.Sp, mm), bone surface to bone volume ratio (BS/BV, mm²/mm³), buccal bone defect volume (BBD, mm³), vertical bone height (VBH, mm), buccal wall thickness (BBW, mm) and lingual wall thickness (LBW, mm). Data were analyzed using the Kruskal-Wallis test.</p><p><strong>Results: </strong>After 12 weeks of healing, all groups were associated with a similar BC/TV values (64.6%, 68.2%, 69.0%, 66.5%, 76.5% and 79.8% in the T1, T2, T3, T4, C and N groups, respectively; p > 0.05 for all between group comparisons). No statistically significant differences were found among groups for Tb.Th, Tb.Sp, BS/BV, BBD, VBH, BBW and LBW.</p><p><strong>Conclusions: </strong>Within its limitations, the present study showed comparable efficacy of injectable bone fillers in maintaining alveolar ridge dimensions compared with the C and N groups.</p><p><strong>Clinical relevance: </strong>Injectable bone fillers represent a convenient and potentially effective alternative for alveolar ridge preservation procedures.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13066038/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147573963","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":"Matching accuracy between CT images and intraoral surface scans using glass-ceramic markers compared to gutta-percha markers.","authors":"Yoshiyuki Nakano, Takuya Mino, Yoko Kurosaki, Hiroaki Shimizu, Mariko Nishizaki, Kenji Maekawa","doi":"10.1186/s40729-026-00672-8","DOIUrl":"10.1186/s40729-026-00672-8","url":null,"abstract":"<p><strong>Purpose: </strong>This study investigated the accuracy of matching computed tomography (CT) images and intraoral surface scans using glass-ceramic (GC) and conventional gutta-percha (GP) markers.</p><p><strong>Methods: </strong>A mandibular master model of the right posterior edentulous region (teeth 45-47) was prepared with three training implants, each with a scan body fixed at the anterior central, left posterior, and right posterior sites. The model was scanned 10 times using an intraoral scanner, and 10 CT matching templates with six GP markers (GPCTMTs) and 10 with six GC markers (GCCTMTs) were fabricated. Each template was mounted on the model for CT imaging and intraoral scanning under air conditions. CT imaging was also performed with the model immersed in water to simulate intraoral scattering. A dentist blinded to the study purpose used implant simulation software for matching, which was performed with GP with six markers (GPCTMT) and GC with three (GCCTMT-3) or six (GCCTMT-6) markers. The three-dimensional discrepancy (matching error) between the implant apex positions on CT images and corresponding positions from surface data was measured automatically, and the median of the three sites served as the representative value. Group comparisons were performed using the Steel-Dwass test.</p><p><strong>Results: </strong>Under both air and water conditions, GCCTMT-3 (air: 0.61, water: 0.65) and GCCTMT-6 (air: 0.58, water: 0.57) demonstrated significantly lower matching errors (mm) than those in GPCTMT (air: 1.98, water: 1.83).</p><p><strong>Conclusions: </strong>This model-based study suggests that GC markers provide greater matching accuracy than GP markers for CT-surface data integration.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13031439/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147276209","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":"Current treatment concepts in implantology in oral and maxillofacial surgery in Germany.","authors":"Andreas Pabst, Jörg Wiegner, Matthias Schneider, Nils Weyer, Alexander Bartella, Philipp Becker, Alexander-N Zeller","doi":"10.1186/s40729-026-00668-4","DOIUrl":"10.1186/s40729-026-00668-4","url":null,"abstract":"<p><strong>Introduction: </strong>Dental implantology is a core competency of Oral and Maxillofacial Surgery (OMFS). However, detailed data on the current treatment concepts in implantology in OMFS in Germany are limited. This study analyzed current treatment concepts, clinical practices, decision-making factors, and the adoption of advanced technologies in implantology in OMFS in Germany.</p><p><strong>Material and methods: </strong>A dynamic online questionnaire with up to 38 questions was sent to 1391 OMFS members of the German Association of Oral and Maxillofacial Surgery (DGMKG). The questionnaire collected general and specific data, such as implantological experience, time points of implant placement (immediate vs. delayed), implant systems and designs, imaging modalities, digital planning, guided surgery, healing, (immediate) prosthetic restorations, follow-up, pre- and postoperative management, and the use of platelet-rich fibrin (PRF). Data analysis was descriptive and anonymous.</p><p><strong>Results: </strong>276 OMF surgeons participated in the study, with an average of 20 years of experience in implantology. Most worked in private practices without inpatient facilities (66.3%). Most placed 201-500 implants per year (34.78%). 78.99% performed immediate implant placement, mainly to shorten treatment time and preserve alveolar bone. Cone beam CT (88.42%) and panoramic radiographs (68.34%) were the most common imaging modalities. Virtual planning was used by 73.08%, and guided surgery was used by 66.54%, mainly with externally produced guides. Most participants preferred closed implant healing (83.53%). Immediate prosthetic restorations (PR) were rarely performed (57.83% never), and 70.92% did not carry out definitive PR. Risk factors for implant failure were poor oral hygiene (84.72%), limited surgical experience (76.39%), and smoking (75%). PRF was used routinely by 9.72%, and selectively by 45.83% CONCLUSION: The results indicate high implantological standards and heterogeneity in current treatment concepts in OMFS implantology in Germany. Possible reasons may include the surgeon's training and experience, the private practices' and clinics' organizational and structural features, and the referral network.</p><p><strong>Clinical relevance: </strong>This study underscores the importance of implantological education and training, interdisciplinary communication, and the further implementation of guidelines.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12929735/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147271012","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 and occlusal wear of polymer-infiltrated ceramic network and zirconia-reinforced ceramic implant-supported single crowns fabricated via a digital workflow on two titanium implant systems: a 12-month prospective randomized trial.","authors":"Malte Bagratuni, Maria Bruhnke, Lauren Bohner, Insa Herklotz, Florian Beuer, Mats Wernfried Heinrich Böse, Stefano Pieralli","doi":"10.1186/s40729-026-00671-9","DOIUrl":"10.1186/s40729-026-00671-9","url":null,"abstract":"<p><strong>Purpose: </strong>Polymer-infiltrated ceramic network (PICN) and zirconia-reinforced lithium silicate (ZLS) ceramics are alternatives for implant-supported single crowns (ISCs). This prospective randomized trial evaluated 12-month survival of PICN- and ZLS-ISCs supported by Straumann Bone Level Tapered (BLT) and CAMLOG Promote plus (PP) titanium implants. Furthermore, technical complications and occlusal wear were analyzed.</p><p><strong>Methods: </strong>Sixty-one patients received a single titanium implant from two different manufacturers, and one was treated with two implants. All implants were placed using fully guided static computer-assisted surgery. After randomization, screw-retained CAD-CAM ISCs were fabricated from PICN (n = 31) or ZLS (n = 31) and cemented onto stock titanium base abutments. After 1 year, implant and prosthetic survival, material- and system-dependent outcomes, technical complications, and occlusal wear-based on superimposed baseline and follow-up intraoral scans-were recorded. Independent t-tests were performed (p = 0.05).</p><p><strong>Results: </strong>Forty-two ISCs were evaluated after one year (mean follow-up: 409.5 ± 102.6 days). PICN showed a 84% survival rate, while ZLS achieved 100% survival. Debonding occurred in five restorations (PICN = 2; ZLS = 3). No complications were observed in 86% of PICN and 85% of ZLS crowns. Occlusal wear was significantly greater for PICN (0.45 ± 0.38 mm) compared with ZLS (0.16 ± 0.05 mm; p = 0.03). Both crown fractures occurred on BLT implants (82% survival), whereas PP implants showed 100% survival.</p><p><strong>Conclusions: </strong>ZLS demonstrated the highest survival rate and no irreparable failures, along with significantly lower occlusal wear. PICN showed more catastrophic fractures and greater wear. Technical complications were frequent for both materials, independent of implant system or abutment height.</p><p><strong>Trial registration: </strong>Deutsches Register Klinischer Studien (DRKS-ID: DRKS00026973).</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":""},"PeriodicalIF":4.7,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12932773/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146226798","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":"Evaluation of the composite materials mixed with calcium phosphate cement and β-tricalcium phosphate granules.","authors":"Eri Yumoto, Hironori Sakai, Yang Liu, Jianping Liu, Ryo Okaniwa, Ryo Kajihara, Hirokazu Tanaka, Hiroshi Kurita","doi":"10.1186/s40729-026-00670-w","DOIUrl":"10.1186/s40729-026-00670-w","url":null,"abstract":"<p><strong>Purpose: </strong>Calcium phosphate cement (CPC) demonstrates excellent shape retention; however, the material exhibits a prolonged resorption period. Despite its inferior mechanical strength and poor shape retention, beta-tricalcium phosphate (β-TCP) offers excellent osteoconductivity. We previously reported that incorporating β-TCP into CPC enhances mechanical strength and shape retention. However, the prolonged setting time poses a challenge for clinical application. We aimed to improve the clinical usefulness of the CPC/β-TCP composite material.</p><p><strong>Materials and methods: </strong>Samples with different mixing ratios of β-TCP (SUPERPORE) to quick-setting type of CPC (BIOPEX^®-R Quick Type) (C0, C10, C30, and C50 with mixing ratios of β-TCP of 0, 10, 30, and 50 wt%, respectively) were prepared. We evaluated the material properties. New bone formation was evaluated by histological and histopathological analysis after 4 and 8 weeks of implantation into the calvarial bone of Wistar rats.</p><p><strong>Results: </strong>This material was set in approximately 4 min. As the β-TCP content increased, the compressive strength decreased significantly. The average compressive strength C30 was 1.5 MPa. Penetration tests confirmed good permeability for C30 and C50. In the histological study, better new bone formation was observed in the C30 and C50 at 4 and 8 weeks.</p><p><strong>Conclusion: </strong>These results suggested that the composite material made in this study had a shorter setting time and improved penetration than that in the previous study and confirmed its biocompatibility and osteoconductivity. Its compressive strength was low; therefore, it is necessary to examine whether the material can withstand the vertical and horizontal augmentation of the jawbone.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":" ","pages":"8"},"PeriodicalIF":4.7,"publicationDate":"2026-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12901794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146119013","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":"Impact of soft-tissue management techniques on immediate implant placement: a randomized controlled trial.","authors":"Frederic Bouffleur, Andreas Ruoss, Reinald Kühle, Christopher Büsch, Michael Engel, Jürgen Hoffmann, Christian Mertens","doi":"10.1186/s40729-026-00667-5","DOIUrl":"10.1186/s40729-026-00667-5","url":null,"abstract":"<p><strong>Purpose: </strong>In immediate implant placement, both open and closed healing techniques are used, but their comparative esthetic and tissue stability outcomes remain under debate. This study aimed to evaluate and compare these two approaches to support clinical decision-making.</p><p><strong>Methods: </strong>In this prospective, randomized controlled trial, 46 patients received a total of 48 implants, assigned to either an open healing group (n = 25) or a closed healing group (n = 23). Clinical and radiological assessments were conducted at three time points: T1 (pre-extraction), T2 (3 months post-op), and T3 (12 months post-op). The primary endpoint was the Pink Esthetic Score (PES), which assesses seven soft tissue parameters. Secondary endpoints included implant survival and volumetric tissue changes. PES was analyzed using a linear mixed-effects model.</p><p><strong>Results: </strong>The open healing group showed significantly higher PES outcomes compared to the closed healing group (mean difference: -1.49; 95% CI: [-2.36, -0.62]; p = 0.0014). A higher baseline PES was also significantly associated with better esthetic outcomes at follow-up (0.3638, 95% CI: [0.1890, 0.5386], p = 0.0002). Smoking had no significant effect. Volumetric analysis revealed soft tissue volume loss from T1 to T2, with partial recovery by T3. Although the open healing group showed slightly less volume loss, this was not statistically significant. No implant losses occurred in either group.</p><p><strong>Conclusion: </strong>The study demonstrated esthetic advantages of the open healing technique compared to the closed healing technique in immediate implant placement.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"12 1","pages":"2"},"PeriodicalIF":4.0,"publicationDate":"2026-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12847548/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146052002","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}