The International journal of oral & maxillofacial implants最新文献

{"title":"Effect of Osteotomy Depth on Intraosseous Temperature During Implant Drilling: A Standardized CAD/CAM-Guided Thermocouple Study.","authors":"Aykut Can Balkanlioğlu, İzzet Acikan","doi":"10.11607/jomi.11735","DOIUrl":"https://doi.org/10.11607/jomi.11735","url":null,"abstract":"<p><strong>Purpose: </strong>Heat generation during implant osteotomy may compromise bone vitality. Osteotomy depth and drill diameter are key contributors to intraosseous temperature rise, particularly in dense cortical bone. This in vitro study evaluated the effects of drill diameter and osteotomy depth on maximum intraosseous temperature (Tmax) using standardized thermocouple placement with CAD/CAM-assisted surgical guides.</p><p><strong>Materials and methods: </strong>Fresh bovine femoral cortical bone blocks (D1-like dense cortical model) were used. A 3×3 factorial design included three final drill diameters (3.5, 4.0, 4.5 mm) and three osteotomy depths (6.5, 11, 15 mm). Ten osteotomies were performed per diameter-depth combination (n=90). Two K-type thermocouples were positioned 1 mm from the lateral osteotomy walls at the apical region via 3D-printed guides. Tmax was analyzed using two-way ANOVA with Tukey post-hoc tests, Pearson correlation, and linear regression.</p><p><strong>Results: </strong>Tmax ranged from 33.3 to 41.7 °C and remained below 47 °C in all groups. Depth and diameter showed significant main effects on Tmax (p<0.001), with a stronger effect for depth (F(2,81)=3883.56; η²=0.82) than diameter (F(2,81)=803.44; η²=0.17). The diameter×depth interaction was significant (F(4,81)=11.36; p<0.001). Depth correlated strongly with Tmax (r=0.886; p<0.001), and each 1-mm increase in depth was associated with an approximate 0.63 °C increase in Tmax (R²=0.785; p<0.001).</p><p><strong>Conclusions: </strong>Osteotomy depth was the dominant determinant of intraosseous temperature rise, whereas drill diameter had a secondary but clinically relevant effect. Under the tested standardized conditions and continuous irrigation, Tmax remained below the classical 47 °C threshold in all groups. These findings reflect a D1-like cortical model and peak-temperature-only assessment; cumulative thermal dose was not evaluated.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-22"},"PeriodicalIF":1.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147848220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Three-Year Outcomes of a Fully Tapered Implant With the One-Time Abutment Protocol Placed in Healed Ridges: A Prospective Case Series.","authors":"Yago Leira, Gustavo Manfredi, María Vázquez-Reza, Hon Jin-Tan, Paula Ruiz-Henao, Antonio Liñares, Juan Blanco","doi":"10.11607/jomi.11771","DOIUrl":"https://doi.org/10.11607/jomi.11771","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study is to evaluate bone level changes three years after loading of a fully tapered implant with platform switching, using the one abutment-one time protocol.</p><p><strong>Materials and methods: </strong>Twenty-eight patients (11 females, 17 males) received 28 BLX implants (Straumann, SLActive Roxolid). Interproximal bone level changes were measured radiographically. Clinical parameters including probing pocket depth (PPD), bleeding on probing (BoP), keratinized mucosa width (KMW), and modified plaque index (MPI) as well as esthetic outcomes using the Pink Esthetic Score (PES) were assessed at prosthetic loading, 1 year, and 3 years. Implant survival and success were recorded.</p><p><strong>Results: </strong>Minimal increases in PPD (0.64-1.46 mm) and BoP were observed; KMW and crown length remained stable. No marginal bone loss was observed over the follow-up (mesial: 0.06 ± 0.47 mm; distal: 0.08 ± 0.38 mm). PES improved significantly from baseline to 3 years (9.39 ± 1.47 to 11.57 ± 1.34, p < 0.001). Implant survival and success were 100%.</p><p><strong>Conclusions: </strong>The one-abutment one-time protocol with fully tapered, platform-switched implants provide stable peri-implant bone, excellent clinical and esthetic outcomes, and high survival over 3 years (NCT05187143).</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-18"},"PeriodicalIF":1.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147848306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of a Bone Leveler on Prosthetic Abutment Fit in Guided Sub-Crestal Implant Placement: An In-Vitro Study.","authors":"Byung Min Nahm, Rafael Delgado-Ruiz, Tanya Somohano-Marquez, Kenneth Kurtz, Georgios Romanos","doi":"10.11607/jomi.11667","DOIUrl":"https://doi.org/10.11607/jomi.11667","url":null,"abstract":"<p><strong>Purpose: </strong>Guided sub-crestal implant placement is limited by the lack of visual confirmation, making abutment connection dependent on tactile feedback, which may be compromised by residual bone at the implant crest. A bone leveler can remove excess bone above the implant platform, but no clinical guidelines exist for its use in guided sub-crestal surgery. This in-vitro study evaluated the effect of a bone leveler on prosthetic abutment fit.</p><p><strong>Materials and methods: </strong>Ten 3D-printed artificial bone models with irregular cortical morphology were prepared using CAD-CAM technologies from a micro-CT scan obtained from the NIH 3D Print Exchange. Sleeveless surgical guides were digitally designed and additively manufactured, and a 3-mm polyvinyl siloxane layer simulated soft tissue. Guided osteotomies for four implants per model (N = 40) were performed using two protocols: conventional drilling (Control) and conventional drilling plus a bone leveler (Test). Abutments were hand-tightened and assessed for seating by two blinded clinicians through tactile and radiographic evaluation. Inter-rater agreement was quantified via Cohen's Kappa, and Chi-square tests evaluated the effect of the bone leveler on seating outcomes.</p><p><strong>Results: </strong>All abutments were deemed fully seated by tactile assessment of Clinician 1. Independent blinded tactile assessment by Clinician 2 confirmed 80% of abutments in Controls and 85% in Tests as fully seated. Radiographic evaluation revealed 80% fully seated abutments in Test versus only 15% in Controls. The difference was statistically significant (χ² = 7.27, p = 0.007). Inter-rater agreement between tactile and radiographic assessments was poor (C1 vs C2: Kappa = 0; C2 vs R: Kappa = -0.10), highlighting that tactile assessment alone is unreliable. Implants placed in osteotomies prepared with a bone leveler consistently achieved complete abutment seating, whereas those placed without a bone leveler frequently exhibited gaps and were often misclassified as properly fitted.</p><p><strong>Conclusions: </strong>Within the limitations of this in vitro study, incorporating a bone leveler in guided sub-crestal implant placement significantly improves prosthetic abutment fit. Its use should be considered a prerequisite in clinical protocols to enhance prosthetic abutment seating accuracy and improve predictability in guided implant therapy.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-22"},"PeriodicalIF":1.7,"publicationDate":"2026-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147848156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of Passivity of Co-Cr Complete Arch Screw Retained Maxillary Prostheses Using Different Intraoral Scanners With the Aid of Auxiliary Geometric Device.","authors":"Yasmin Hamdy Abd El Hay Dawoud, Heba Shawky Eid, Omar El Sadat, Dina Essam, Rami Maher Ghali","doi":"10.11607/jomi.11793","DOIUrl":"https://doi.org/10.11607/jomi.11793","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the influence of an auxiliary geometric device (AGD) on the accuracy of complete-arch digital scans in edentulous patients by measuring the passivity of fit of 3D-printed frameworks.</p><p><strong>Materials and methods: </strong>In this in vivo study, 7 patients were selected to receive complete arch screw-retained prostheses supported by 4 implants. Five data acquisition methods were compared: extraoral scanning of open-tray impressions (EO), intraoral scanning using Medit i600 (M) or CEREC Primescan (P), and intraoral scanning with an auxiliary geometric device using Medit (MAGD) and Primescan (PAGD). Reference models were generated using intraoral photogrammetry to assess passivity. Cobalt-Chromium frameworks were 3D printed for each group. Passivity was assessed using a modified one-screw test to measure marginal gaps (μm) by using digital imaging (in vitro) and radiographic analysis (in vivo). Data were analyzed using One-way ANOVA followed by Tukey's post-hoc tests. (α=.05 for all tests).</p><p><strong>Results: </strong>Significant inter-group differences were found (P=.001). Microscopic analysis showed the lowest marginal gap in the EO group (25.07±7.77 μm), followed by PAGD (33.58±5.63 μm), and MAGD (50.34±13.71 μm). Groups P (60.91±13.41 μm) and M (71.84±12.44 μm) exhibited the largest gaps and were not significantly different (P>.05). Radiographic findings were similar to microscopic. However, EO (56.92±16.62 μm) and PAGD (68.68±18.91 μm) groups were statistically comparable (P>.05).</p><p><strong>Conclusions: </strong>The use of an auxiliary geometric device significantly improved the accuracy of digital scans for edentulous arches. Intraoral scanner, Primescan combined with a geometric device achieved passivity levels comparable to conventional splinted impressions.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-22"},"PeriodicalIF":1.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147825295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Effect of Different Drilling Systems on Trabecular Bone Microarchitecture During Implant Cavity Preparation Using CBCT: Ex Vivo Study.","authors":"Merve Cakir, Cansu Buyuk, Bahadir Kan","doi":"10.11607/jomi.11740","DOIUrl":"https://doi.org/10.11607/jomi.11740","url":null,"abstract":"<p><strong>Purpose: </strong>Achieving optimal primary stability is critical for dental implant success, particularly in low-density bone regions such as the posterior maxilla. Conventional high-speed drilling with irrigation may remove vital bone fragments and impair trabecular architecture. A novel implant-specific drilling protocol introduces a low-speed, irrigation-free approach designed to preserve bone structure and promote healing. This ex-vivo study aimed to evaluate the morphometric effects of conventional and implant-specific drilling protocols using cone beam computed tomography (CBCT).</p><p><strong>Materials and methods: </strong>Fifty-eight osteotomy sites were prepared in fresh bovine ribs (Type IV bone). Twenty-nine sites were drilled using a conventional protocol (high-speed, irrigated) and 29 with the implant-specific drilling protocol (low-speed Osseoshaper, no irrigation). CBCT scans were taken after the use of the pilot drill and again after the final drill in both groups. Trabecular bone microarchitecture was assessed using ImageJ software with the BoneJ plugin, analyzing bone volume fraction (BV/TV), trabecular thickness (Tb.Th), degree of anisotropy (DA), and connectivity density (Conn.D). Statistical comparisons were performed using appropriate parametric and non-parametric tests (p<0.05).</p><p><strong>Results: </strong>No significant differences in DA or Tb.Th were observed between groups after drilling (p > 0.05), although both increased significantly from baseline within groups (p < 0.001). BV/TV showed a slight but statistically significant increase post-drilling in both groups (p = 0.001), with no significant intergroup difference in delta values (p = 0.107). Conn.D exhibited a non-significant upward trend in the experimental group (median = 0.105) versus a slight decrease in the conventional group (median = -0.015), with a p-value of 0.078.</p><p><strong>Conclusion: </strong>Within the limitations of this ex-vivo model, implant-specific low-speed drilling demonstrated no statistically significant advantage over conventional techniques in preserving trabecular bone microarchitecture. Although slight differences were observed in certain parameters, these did not reach statistical significance and should be interpreted with caution. CBCT-based 3D morphometric analysis proved to be a practical and artifact-free method for evaluating bone quality changes following site preparation, offering insights for future research on implant site preparation in low-density bone.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-20"},"PeriodicalIF":1.7,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147825302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"ZrO Summit 2025, Group 4: Biological Complications and Peri-implant Tissue Response of Zirconia Compared with Titanium Dental Implants: A Systematic Review and Meta-analysis of Clinical Evidence.","authors":"Karol Ali Apaza Alccayhuaman, Amirali Zandinejad, Rodrigo Beltrao, Fabian Schick, Nadja Rohr","doi":"10.11607/jomi.11786","DOIUrl":"10.11607/jomi.11786","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the incidence of biological complications and peri-implant soft tissue outcomes between zirconia and titanium implants under controlled clinical conditions within the included studies.</p><p><strong>Materials and methods: </strong>Electronic searches were performed in PubMed, Embase, and Web of Science up to October 2025, complemented by manual screening. Comparative clinical studies evaluating zirconia and titanium implants with at least 12 months of follow-up were included. The primary outcome was the incidence of biological complications (peri-implant mucositis or peri-implantitis). Secondary outcomes included bleeding on probing (BoP), plaque index (PI), probing pocket depth (PPD), and pink esthetic score (PES). Random effects meta-analyses were performed. The risk of bias was assessed based on the study design, and the certainty of evidence was graded using the GRADE approach.</p><p><strong>Results: </strong>From 3,646 records, six studies (five randomized controlled trials and one cross-sectional study; 354 implants in total) met the inclusion criteria. Three studies (12-60 months of follow-up) reporting biological complications found no significant differences between zirconia and titanium implants (RR = 0.95; 95% CI: 0.80-1.12). At 12 months, pooled analyses showed a higher bleeding on probing around zirconia implants (MD = 4.72; 95% CI: 0.90-8.54; p = 0.02); however, this difference was not accompanied by PI (MD = 0.41; 95% CI: -1.98-2.80), PPD (MD = -0.16; 95% CI: -0.45-0.13), or PES (MD = 0.06; 95% CI: -0.41-0.54). Heterogeneity across outcomes was low (I² < 40%). The overall risk of bias ranged from low to moderate. Certainty of evidence was moderate for biological complications and low for BoP, PI, PPD, and PES.</p><p><strong>Conclusions: </strong>Within the limits of the available evidence, zirconia and titanium implants demonstrate comparable biological performance in terms of peri-implant tissue health and the incidence of biological complications. Zirconia implants exhibited an isolated increase in BoP at 12 months; however, this difference was not accompanied by changes in the other peri-implant parameters or biological complications. The biological and clinical significance of this finding remains uncertain and warrants further investigation. Further long-term, adequately powered RCTs with standardized outcome reporting are needed to clarify the long-term biological performance of both materials.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-36"},"PeriodicalIF":1.7,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719246","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Automated Classification of Alveolar Bone Defects for Preoperative Augmentation Planning Using Deep Learning.","authors":"Nurullah Duger, Burak Dagtekin, Furkan Talo, Mucahit Karaduman, Muhammed Yildirim, Tuba Talo Yildirim, Tolga Fikret Tozum","doi":"10.11607/jomi.11768","DOIUrl":"https://doi.org/10.11607/jomi.11768","url":null,"abstract":"<p><strong>Objectives: </strong>Determining alveolar bone deficiencies prior to dental implant surgeries is critical for surgical planning. This study aimed to develop a deep learning-based framework that can automatically detect and classify alveolar ridge deficiencies (healthy, horizontal, vertical, and combined defects) using Cone Beam Computed Tomography (CBCT) slices and to evaluate the diagnostic performance of four different Convolutional Neural Network (CNN) architectures.</p><p><strong>Materials and methods: </strong>A novel dataset consisting of 1305 anonymous CBCT cross-sectional images, classified and labeled by experts into four categories, was created: Healthy (n=325), horizontal Defect (n=359), vertical Defect (n=310) and combined Defect (n=311). Four different CNN models (RegNetY-008, EfficientNetV2-S, ResNet50, and MobileNetV3-Large) were trained and tested. Model performance was evaluated using accuracy, weighted precision, recall, F1-score, and epoch duration.</p><p><strong>Results: </strong>The RegNetY-008 model demonstrated the highest performance with a 93.87% accuracy rate and a 93.88% weighted F1-score, processing the data with the fastest epoch time (8.04 sec.). This was followed by EfficientNetV2-S with a 93.10% accuracy rate. ResNet50 achieved 90.80% success, while MobileNetV3-Large showed the lowest performance (85.82%). Confusion matrices revealed that RegNetY-008 is particularly effective at distinguishing complex combined defects with minimal misclassification.</p><p><strong>Conclusions: </strong>Deep learning models, particularly the RegNetY architecture, can effectively classify alveolar bone defects from CBCT slices.</p><p><strong>Clinical relevance: </strong>The proposed automated system provides clinicians with a quick and objective second opinion in preoperative planning. By accurately classifying bone defects, it can assist dentists, particularly those with limited experience, in deciding between standard implant placement and augmentation procedures, thereby potentially reducing surgical complications and planning time.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-19"},"PeriodicalIF":1.7,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-Year Clinical Performance and Insertion Torque Pattern of a Contemporary Tapered Implant System: A Multicentre Prospective Post Market Study.","authors":"A Temmerman, F Guljé, M Toia, C Barwacz, M Krebs","doi":"10.11607/jomi.11731","DOIUrl":"https://doi.org/10.11607/jomi.11731","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;Primary stability, commonly quantified by insertion torque (ITV) and resonance frequency analysis (RFA/ISQ), is pivotal for predictable osseointegration and for making loading decisions with oral implants.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Purpose: &lt;/strong&gt;To report 1-year survival, stability, marginal bone level (MBL) changes, safety, and particularly the insertion torque characteristics of a contemporary tapered implant system (PrimeTaper EV, Dentsply Sirona Implants, Mölndal, Sweden).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Materials and methods: &lt;/strong&gt;This open-label, single-arm, multicentre investigation enrolled 138 subjects (intention-to-treat [ITT]; per-protocol [PP]=136) across five centres. Implants were placed according to the manufacturer's protocol. ITV (final and maximum) was recorded from machine-driven insertion; estimated peak manual torque was noted for manually placed implants. ISQ was measured at implant placement (IPV) and at permanent restoration (PR). Radiographic MBL was assessed at IPV, PR and PR+1 year. Descriptive statistics with 95% confidence intervals (CIs) were calculated. Survival at PR+1 year was compared to a performance goal of 89% using a one-sided binomial test (α=0.025). Torque curve data were processed in a dedicated technical analysis using normalized insertion time.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;At PR+1 year, implant survival was 98.5% (PP, 134/136; 95% CI: 94.8 99.8%; p=0.000021 vs 89%) and 98.6% (ITT, 136/138; 95% CI: 94.9-99.8%; p=0.000017). For machine-driven placements (n=129), mean final ITV was 31.2±12.7 Ncm and mean maximum ITV 33.6±11.7 Ncm. Manual implant insertion occurred in 5.1% (7/136), yielding an estimated peak torque of 30.7±14.3 Ncm. Final manual seating with a torque wrench was performed in 15.5% (20/129) of the machine insertions, with a mean additional insertion depth of 1.5±0.8 mm. ISQ increased from 71.8±11.2 at IPV to 79.3±6.9 at PR (Δ+7.4; p&lt;0.0001). The MBL change from PR to PR+1 year was -0.06±0.46 mm, and the cumulative change from IPV to PR+1 year was -0.16±0.51 mm. No serious adverse device effects (SADEs) were reported. Two implants were lost by the 1-year follow-up.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;This implant design demonstrated high 1-year implant survival, minimal early crestal bone remodeling, and consistent torque profiles with mean final/peak torques of ~31/34 Ncm for machine insertions. Stability (ISQ) increased significantly by PR. Torque-curve analysis indicated continuous torque build-up throughout implant seating. Ongoing follow-up will clarify long-term performance. Scientific rationale: Primary implant stability is a key determinant for predictable osseointegration and loading protocols. The PrimeTaper EV implant features a conical, tapered design intended to enhance insertion torque and stability across varying bone qualities. However, prospective clinical data correlating intra-operative stability parameters with early clinical performance remain limited, justifyi","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-33"},"PeriodicalIF":1.7,"publicationDate":"2026-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147719261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Long Term Outcomes of Non-Surgical Treatment of Peri-Implantitis: A Retrospective Case Series.","authors":"Andreas O Parashis, Binnaz Leblebicioglu, Dimitris N Tatakis","doi":"10.11607/jomi.11688","DOIUrl":"https://doi.org/10.11607/jomi.11688","url":null,"abstract":"<p><p>bjective: Conventional non-surgical techniques are considered ineffective for peri-implantitis management. The aim of this retrospective case series is to present the long-term results of a non-surgical protocol for peri-implantitis treatment, in a private practice setting.</p><p><strong>Materials and methods: </strong>Peri-implantitis diagnosis criteria were presence of bleeding on probing with or without suppuration, probing pocket depth (PD) > 5 mm and interproximal radiographic bone loss (IBL)>2mm on a non-mobile implant. The treatment protocol included oral hygiene instruction, thorough implant instrumentation with ultrasonic tips and rotating titanium brushes, meticulous removal of granulation tissue, local or systemic antibiotics, possible prosthesis modification, long-term use of antimicrobials, and individualized supportive care. Clinical and radiographic parameters were recorded at initial visit and last follow-up.</p><p><strong>Results: </strong>Twenty-six patients (30 implants) were included. Mean follow-up time was 86.1 months (range: 18-180 months). During follow-up, the protocol was repeated once in 10 implants and twice in another 10 implants. Four implants were explanted due to significant progressive bone loss. The remaining 26 stable/improved implants showed significant mean PD reduction (3.5 mm) and mean radiographic bone gain (1.9 mm), without PD>5 mm or further bone loss >0.5mm, resulting in 86.7% survival rate.</p><p><strong>Conclusions: </strong>The presented non-surgical protocol provided stable long-term clinical and radiographic outcomes, demonstrating the possibility of maintaining dental implants treated for peri-implantitis in a practice setting. Retreatment over the years was necessary to achieve these results.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-25"},"PeriodicalIF":1.7,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147635551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Progressive Versus Standard Implant Thread Designs on Primary Stability and Insertion Torque: An In Vitro Study.","authors":"Peter Gehrke, Christoph Stein, Maria Julia Pietruska, Octavio Weinhold, Jörg Neugebauer, Paul Weigl, Robert Sader","doi":"10.11607/jomi.11778","DOIUrl":"https://doi.org/10.11607/jomi.11778","url":null,"abstract":"<p><strong>Purpose: </strong>To compare primary stability and insertion torque between implants with standard (SI) and progressive (PI) thread designs in vitro, and to evaluate manufacturer-specific differences and the relationship between these two parameters.</p><p><strong>Materials and methods: </strong>A total of 240 screw-type implants with either standard or progressive thread designs were inserted into standardized polyurethane blocks simulating three different bone densities. Insertion torque [Ncm] was recorded during implant placement, and primary stability was measured immediately after insertion using RFA, expressed as implant stability quotient [ISQ]. Statistical comparisons were made between SI and PI groups, within manufacturer-matched subgroups, and across simulated bone densities.</p><p><strong>Results: </strong>Overall, implants with progressive thread designs showed significantly higher insertion torque values than standard thread designs (p = 0.008), and ISQ values were also higher in the PI group (p = 0.033). However, manufacturer-matched analyses revealed that this effect was not consistently reproducible across all implant systems. Significant differences between standard and progressive designs were seen for some manufacturers, while others showed no statistically significant differences. A positive correlation between insertion torque and ISQ values was found across all implant groups.</p><p><strong>Conclusions: </strong>Within the limits of this in vitro study, progressive thread designs were associated with increased primary stability in the overall analysis. However, this effect was not consistent across all manufacturer-matched implant systems, suggesting that macrodesign-related performance is system-specific rather than universally dependent on design.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-25"},"PeriodicalIF":1.7,"publicationDate":"2026-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147635561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}