Clinical Oral Implants Research最新文献

{"title":"Marginal Bone Changes at Bone‐Level Implants With Narrow or Standard Diameter Abutments: 1‐Year Results of a Randomised Controlled Trial","authors":"Antonio Liñares, Lucía Maceiras, Lourdes Nóvoa, Alejandro González, Borja Rodríguez, Pilar Batalla, Yago Leira, Juan Blanco","doi":"10.1111/clr.70005","DOIUrl":"https://doi.org/10.1111/clr.70005","url":null,"abstract":"AimTo evaluate changes in the peri‐implant marginal bone level at implants restored with narrow or standard‐diameter abutments after 12 months.Material & MethodsTwenty‐eight partially edentulous patients were randomly allocated to two groups. The test group consisted of 14 patients restored with a 2.9 mm diameter abutment (21 implants), while the control group included 14 patients restored with a 4.1 mm diameter abutment (17 implants). The primary outcome variable was the radiographic change in the peri‐implant marginal bone level at 12 months, measured as the distance from the implant shoulder to the first bone‐to‐implant contact (fBIC). Secondary outcome variables included clinical peri‐implant parameters, the papilla index, biological and mechanical complications, patient‐reported outcomes (PROs) and professional aesthetic assessment.ResultsA per‐protocol analysis was conducted on the 22 patients who completed all scheduled follow‐up visits. At the patient level, the change in mean radiographic bone level from definitive prosthesis placement to 12 months showed a reduction in the distance from the implant shoulder to the fBIC of 0.16 ± 0.31 mm in the test group and 0.21 ± 0.34 mm in the control group, with no statistically significant differences between the groups. No statistically significant differences were observed between the two groups for any of the secondary outcomes.ConclusionsConsidering the limitations of this study, no significant differences in peri‐implant marginal bone levels were found between bone‐level implants restored with narrow and standard diameter abutments after 12‐month follow‐up. Additionally, no differences were observed in clinical variables, patient‐reported outcomes, or complications.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"11 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Five Year Clinical, Radiographic and Soft Tissue Profilometric Outcomes at Two Narrow‐Diameter Implants to Replace Missing Maxillary Lateral Incisors","authors":"Andrea Roccuzzo, Jean‐Claude Imber, Jakob Lempert, Leonardo Mancini, Simon Storgård Jensen","doi":"10.1111/clr.70010","DOIUrl":"https://doi.org/10.1111/clr.70010","url":null,"abstract":"ObjectivesTo compare the 5‐year outcomes in patients with congenitally missing maxillary lateral incisors (MLIs) rehabilitated with two different narrow‐diameter implants (NDIs).Materials and MethodsOne‐hundred patients rehabilitated with a cement‐retained bi‐layered zirconia single‐unit crown on either a Ø2.9 mm (Test) (<jats:italic>n</jats:italic> = 50) or a Ø3.3 mm (Control) (<jats:italic>n</jats:italic> = 50) (T1) were assessed at 1‐, 3‐, and 5‐year follow‐up (T2, T3, T4). Clinical, radiographic, patient‐reported outcome measures (PROMs), biological/technical complications, and esthetic ones were recorded. After the acquisition of intraoral optical scans (IOS) (T4), three different soft tissue profilometric profiles (linear, concave, and convex) were identified.ResultsAt T4, 66 patients (<jats:italic>n</jats:italic> = 33 per group; drop‐outs <jats:italic>n</jats:italic> = 33; implant survival rate: 99%; early implant loss <jats:italic>n</jats:italic> = 1) were evaluated. Between T1 and T4, crestal bone level (CBL) changes at Ø3.3 and at Ø2.9 mm implants were comparable (difference: 0.24 mm; <jats:italic>p</jats:italic> &gt; 0.05). Despite the positive recorded esthetic scores (i.e., Score 1–2), at T4, 9.1% of Ø2.9 mm versus 18.2% of Ø3.3 mm implants displayed alveolar process deficiency (Score 3). The frequency of soft tissue profilometric profiles was linear (21.2% vs. 40.6%), concave (72.7% vs. 37.5%) and convex (6.1% vs. 21.9%) (Ø2.9 mm vs. Ø3.3 mm group [<jats:italic>p</jats:italic> &gt; 0.01]). Complications included decementation, ceramic chipping of the incisal edge (3× each), abutment loosening (1×) and a buccal fistula (3×). The statistically significant improved PROMs values at T1 remained stable up to T4 for both groups (<jats:italic>p</jats:italic> &gt; 0.05).ConclusionThe use of Ø2.9 or Ø3.3 mm implants showed comparable positive long‐term results. Clinicians can rely on both implant types to replace congenitally missing MLIs.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"15 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715664","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Clinician's Experience on the Accuracy of Dental Implant Placement by Dynamic Computer‐Assisted Surgery Systems: A Systematic Review and Meta‐Analysis","authors":"Lata Goyal, Komal Kaur Saroya, Hariram Sankar, Meghna Dewan, Kirti Chawla, Gunjan Pruthi","doi":"10.1111/clr.70009","DOIUrl":"https://doi.org/10.1111/clr.70009","url":null,"abstract":"AimTo synthesize evidence on the effect of clinicians' experience on the accuracy of implants placed using Dynamic Computer‐Assisted Surgery systems (dCAIS).MethodsPubMed, Scopus, EMBASE, and Cochrane Library were searched till April 19, 2025, for research reporting implant accuracy with dCAIS along with the influence of the operator's experience. Clinicians who had placed implants with dCAIS (dCAIS‐Ex) were compared with those without any prior experience with dCAIS (dCAIS‐IEx), irrespective of their experience with implant surgery; clinicians placing implants with dCAIS with or without prior experience in implant surgeries were also compared (IEx vs. I‐InEx). The risk of bias was assessed with ROBINS‐I for in vivo and QUIN tool for in vitro studies. Meta‐analyses were performed to evaluate implant accuracy (coronal, apical, and angular deviations) and operating time.Results4 in vivo and 10 in vitro studies were included. Pooled analysis of in vivo and in vitro studies showed significant differences in angular deviation [SMD = −0.35 (−0.69, −0.01), <jats:italic>p</jats:italic> = 0.04; SMD = −0.39 (−0.62, −0.17), <jats:italic>p</jats:italic> = 0.0007], where dCAIS‐Ex clinicians showed lower deviations than dCAIS‐IEx clinicians. No statistical difference was observed in implant accuracy between I‐Ex versus I‐IEx clinicians. Data was highly heterogeneous to report conclusive evidence on operating time with dCAIS between respective groups.ConclusionsThe influence of clinicians' experience was significant only on angular deviation when implants were placed by dCAIS‐Ex vs. dCAIS‐InEx clinicians. However, the small magnitude of difference might not be clinically perceptible. More randomized clinical trials with high quality and standardized methodology are required to synthesize meaningful evidence.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"708 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144715665","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Anatomically Based Multitask Deep Learning Radiomics Nomogram Predicts the Implant Failure Risk in Sinus Floor Elevation.","authors":"Yujie Zhu,Yang Liu,Yue Zhao,Qinyi Lu,Wendi Wang,Yuan Chen,Ping Ji,Tao Chen","doi":"10.1111/clr.70011","DOIUrl":"https://doi.org/10.1111/clr.70011","url":null,"abstract":"OBJECTIVESTo develop and assess the performance of an anatomically based multitask deep learning radiomics nomogram (AMDRN) system to predict implant failure risk before maxillary sinus floor elevation (MSFE) while incorporating automated segmentation of key anatomical structures.MATERIALS AND METHODSWe retrospectively collected patients' preoperative cone beam computed tomography (CBCT) images and electronic medical records (EMRs). First, the nn-UNet v2 model was optimized to segment the maxillary sinus (MS), Schneiderian membrane (SM), and residual alveolar bone (RAB). Based on the segmentation mask, a deep learning model (3D-Attention-ResNet) and a radiomics model were developed to extract 3D features from CBCT scans, generating the DL Score, and Rad Score. Significant clinical features were also extracted from EMRs to build a clinical model. These components were then integrated using logistic regression (LR) to create the AMDRN model, which includes a visualization module to support clinical decision-making.RESULTSSegmentation results for MS, RAB, and SM achieved high DICE coefficients on the test set, with values of 99.50% ± 0.84%, 92.53% ± 3.78%, and 91.58% ± 7.16%, respectively. On an independent test set, the Clinical model, Radiomics model, 3D-DL model, and AMDRN model achieved prediction accuracies of 60%, 76%, 82%, and 90%, respectively, with AMDRN achieving the highest AUC of 93%.CONCLUSIONThe AMDRN system enables efficient preoperative prediction of implant failure risk in MSFE and accurate segmentation of critical anatomical structures, supporting personalized treatment planning and clinical risk management.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"52 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144693309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Osseointegration in the Absence of Primary Stability: An Experimental Preclinical Mandibular Minipig Overpreparation In Vivo Model.","authors":"Thomas Gill,Hansley Ooi,Emre Tezulas,Aviva Petrie,Simon Rawlinson,Mario Roccuzzo,Shakeel Shahdad","doi":"10.1111/clr.70006","DOIUrl":"https://doi.org/10.1111/clr.70006","url":null,"abstract":"OBJECTIVESThe effect of osteotomy overpreparation, and thus lack of primary stability, on implant osseointegration and crestal bone volume maintenance was investigated by comparing placement of dental implants with either a standard osteotomy preparation (NP) or an overprepared osteotomy (OP) where the final osteotomy drill was larger in diameter than the implant placed.METHODSBone-level implants (Ø3.3 mm diameter) were placed in the mandible of minipigs with two preparation techniques: an NP (Group 1) and an OP to a final osteotomy of 3.5 mm in diameter (Group 2) and submerged for 2 and 8 weeks. An Implant Stability Quotient (ISQ) was measured for each implant at placement. Implant survival, defined histologically as the absence of fibrous encapsulation and the presence of direct bone-to-implant contact, osseointegration and crestal bone formation were analysed histologically and histomorphometrically to compare the preparation techniques.RESULTSA 100% survival for both preparation types was observed. The mean ISQ at insertion for Groups 1 and 2 was 69.35 a.u. (95% CI: 68.02-70.68) and 11.95 a.u. (95% CI: 10.53-13.37) respectively (p < 0.001). At 2 and 8 weeks, there was no difference between the two groups for total bone-to-implant contact (tBIC) (p > 0.05). Group 2 demonstrated significantly higher mean first bone-to-implant contact (fBIC), coronal bone-to-implant contact (cBIC) and bone-area-to-total-area (BATA) at 2 and 8 weeks compared to Group 1 (p < 0.05).CONCLUSIONImplants inserted into an overprepared osteotomy with no primary stability successfully osseointegrated. At 2 and 8 weeks, OP resulted in significantly more coronal bone apposition and maintenance of coronal bone volume as measured by fBIC, cBIC and BATA.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"678 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144684290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Clinical and Radiographic Changes at Implants Supporting Fixed Partial Dental Prostheses With Cantilever Extensions. A Retrospective Study After at Least 10 Years of Loading","authors":"Alexios Bakopoulos, Haralampos Petridis, Konstantinos Michalakis, Lazaros Tsalikis, Ioannis Vouros","doi":"10.1111/clr.70000","DOIUrl":"https://doi.org/10.1111/clr.70000","url":null,"abstract":"AimTo report clinical and radiographic changes at implants supporting Fixed Partial Dental Prostheses with Cantilever extensions (<jats:styled-content style=\"fixed-case\">FPDPC</jats:styled-content>'s) after a loading time exceeding 10 years.Materials and MethodsPatients with <jats:styled-content style=\"fixed-case\">FPDPC</jats:styled-content>'s were reevaluated after a loading time of 10–21 years. A clinical and radiographic examination was conducted to assess Marginal bone level change (<jats:styled-content style=\"fixed-case\">MBLc</jats:styled-content>), biological, and prosthetic parameters. Pocket depth (<jats:styled-content style=\"fixed-case\">PD</jats:styled-content>), Attachment Level (<jats:styled-content style=\"fixed-case\">CAL</jats:styled-content>), Bleeding on Probing (<jats:styled-content style=\"fixed-case\">BOP</jats:styled-content>), and Presence of Plaque (<jats:styled-content style=\"fixed-case\">PL</jats:styled-content>) were also recorded.ResultsNineteen patients with 21 <jats:styled-content style=\"fixed-case\">FPDPC</jats:styled-content>'s supported by 47 implants were re‐evaluated after a mean loading time of 13.3 ± 2.9 years (range: 10–21 years). Implant survival rate was 100% and implant success rate was 91.5%, accounting for 4 implants (8.5%) that presented with peri‐implantitis. Twelve implants (25.5%) exhibited peri‐implant mucositis. Three of the <jats:styled-content style=\"fixed-case\">FPDPC</jats:styled-content>'s had to be replaced due to fracture of the cantilever teeth and one other <jats:styled-content style=\"fixed-case\">FPDPC</jats:styled-content> had abutment screw fracture which was corrected, leading to prosthetic survival and success rates of 86% and 81%, respectively. Mean <jats:styled-content style=\"fixed-case\">MBLc</jats:styled-content> from implant placement to time of re‐evaluation was 0.99 ± 1.11 mm (95% <jats:styled-content style=\"fixed-case\">CI</jats:styled-content>: 0.67, 1.31, <jats:italic>p</jats:italic>‐value &lt; 0.001). Mean <jats:styled-content style=\"fixed-case\">PD</jats:styled-content> at re‐evaluation was 3.9 ± 1.6 mm, mean <jats:styled-content style=\"fixed-case\">CAL</jats:styled-content> was 1.2 ± 1.6 mm. Percentages of <jats:styled-content style=\"fixed-case\">BOP</jats:styled-content> and <jats:styled-content style=\"fixed-case\">PL</jats:styled-content> were 14.89% ± 23.11% and 26.6% ± 30.625 respectively.ConclusionFixed partial dental prostheses with cantilever extensions are a reliable option if extensive bone grafting or sinus lifts are to be avoided, with 10‐year results showing 100% implant survival, 90% implant success, and 86% and 81% prosthetic survival and success rates, respectively.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"26 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144677553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Neutrophil Extracellular Traps Induce Pyroptosis of Gingival Fibroblasts in Peri-Implantitis.","authors":"Jiangbo Li,Zhixin Li,Kailibinuer Abuduwaili,Jiaying Song,Yue Sun,Zhuofan Chen,Danying Chen,Baoxin Huang","doi":"10.1111/clr.70002","DOIUrl":"https://doi.org/10.1111/clr.70002","url":null,"abstract":"OBJECTIVESThis study aimed to verify the release of neutrophil extracellular traps (NETs) in peri-implantitis and explore whether NETs induce pyroptosis and inflammatory responses in human gingival fibroblasts (HGFs).MATERIALS AND METHODSPeri-implant soft tissue samples were collected from healthy individuals and patients with peri-implantitis. NETs and the expression of pyroptosis-related factors including NLRP3, Caspase1, GSDMD, and IL-1β were detected. In vitro, NETs induced from differentiated HL60 (dHL60) cells and human neutrophils were used to stimulate HGFs. Transcriptome sequencing analysis and functional enrichment analysis were performed to analyze the influence of NETs on programmed cell death and inflammatory-related signaling pathways in HGFs. Further investigations were conducted to explore the changes in cell viability, cell membrane permeability, and the expression levels of inflammatory factors and pyroptosis-related markers in HGFs treated with NETs in the presence or absence of DNase I.RESULTSCompared to healthy samples, the release of NETs was significantly elevated in soft tissues with peri-implantitis, accompanied by increased expression of NLRP3, Caspase1, GSDMD, and IL-1β. Functional enrichment analyses revealed that NETs activated signaling pathways related to pyroptosis and inflammatory responses of HGFs. Meanwhile, the results of the in vitro study revealed that NETs reduced cell viability, increased cell membrane permeability, and upregulated expression of inflammatory cytokines and pyroptosis markers in HGFs, which were partially reversed by DNase I treatment.CONCLUSIONNETs may exacerbate the pathological progression of peri-implantitis by inducing pyroptosis and inflammatory responses in HGFs. Targeting NETs may offer a potential therapeutic strategy to mitigate the inflammation in peri-implantitis.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"26 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144669400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Horizontal Intraoral Scan Bodies on the Trueness of Digital Impressions for Complete-Arch Prostheses on Four Implants: An In Vitro Evaluation.","authors":"Andrea Laureti,Tiago Marques,João Pitta,Vincent Fehmer,Irena Sailer,Alessandro Pozzi,Luís Azevedo","doi":"10.1111/clr.70001","DOIUrl":"https://doi.org/10.1111/clr.70001","url":null,"abstract":"OBJECTIVETo assess the impact of horizontal intraoral scan bodies (H-ISBs) on the trueness of complete-arch digital impressions compared to vertical ISBs (V-ISBs). To evaluate trueness among four intraoral scanners (IOS) and inter-operator variability across different ISB × IOS combinations.MATERIALS AND METHODSDigital impressions were made from a dental cast with four multi-unit analogs using four H-ISBs: H-NB, H-NS, H-M6, H-SF, and a V-ISB (V-EA) as a comparison. Two operators performed 10 scans per ISB with four IOS devices (i5D, PS, T3, T4), generating 400 impressions. Reference scans were obtained with a desktop scanner, and trueness was analyzed using root-mean-square (RMS) error calculations (α = 0.05).RESULTSH-NS and H-SF exhibited the highest trueness across IOSs, whereas H-NB and H-M6 showed lower trueness. V-EA outperformed H-NB and H-M6 but not H-NS and H-SF. Significant IOS-ISB interaction effects (p < 0.01) indicated H-SF as the most accurate, especially with PS. T4 and i5D displayed greater variability, particularly with H-NB. V-ISBs exhibited higher inter-operator variability compared to H-ISBs.CONCLUSIONSH-ISBs did not perform better than V-ISBs in all scenarios. The interactions among ISB design, IOS type, and operator significantly affect the digital impression trueness. The discrepancies measured among the systems remain well below the currently accepted threshold for clinically relevant misfit, supporting the suitability of the horizontal configuration for complete-arch impressions.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"14 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Accuracy and Time Efficiency of Artificial Intelligence-Driven Tooth Segmentation on CBCT Images: A Validation Study Using Two Implant Planning Software Programs.","authors":"Panagiotis Ntovas,Piyarat Sirirattanagool,Praewvanit Asavanamuang,Shruti Jain,Lorenzo Tavelli,Marta Revilla-León,Maria Eliza Galarraga-Vinueza","doi":"10.1111/clr.70003","DOIUrl":"https://doi.org/10.1111/clr.70003","url":null,"abstract":"OBJECTIVESTo assess the accuracy and time efficiency of manual versus artificial intelligence (AI)-driven tooth segmentation on cone-beam computed tomography (CBCT) images, using AI tools integrated within implant planning software, and to evaluate the impact of artifacts, dental arch, tooth type, and region.MATERIALS AND METHODSFourteen patients who underwent CBCT scans were randomly selected for this study. Using the acquired datasets, 67 extracted teeth were segmented using one manual and two AI-driven tools. The segmentation time for each method was recorded. The extracted teeth were scanned with an intraoral scanner to serve as the reference. The virtual models generated by each segmentation method were superimposed with the surface scan models to calculate volumetric discrepancies.RESULTSThe discrepancy between the evaluated AI-driven and manual segmentation methods ranged from 0.10 to 0.98 mm, with a mean RMS of 0.27 (0.11) mm. Manual segmentation resulted in less RMS deviation compared to both AI-driven methods (CDX; BSB) (p < 0.05). Significant differences were observed between all investigated segmentation methods, both for the overall tooth area and each region, with the apical portion of the root showing the lowest accuracy (p < 0.05). Tooth type did not have a significant effect on segmentation (p > 0.05). Both AI-driven segmentation methods reduced segmentation time compared to manual segmentation (p < 0.05).CONCLUSIONSAI-driven segmentation can generate reliable virtual 3D tooth models, with accuracy comparable to that of manual segmentation performed by experienced clinicians, while also significantly improving time efficiency. To further enhance accuracy in cases involving restoration artifacts, continued development and optimization of AI-driven tooth segmentation models are necessary.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"109 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144664266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment of Residual Bone Level Around Explanted Implants and Description of the Systemic and Local Characteristics. A Retrospective Study.","authors":"Rodrigo Martin-Cabezas,Norbert Cionca,Catherine Giannopoulou","doi":"10.1111/clr.70004","DOIUrl":"https://doi.org/10.1111/clr.70004","url":null,"abstract":"OBJECTIVESThe study aimed to evaluate the residual bone level of explanted implants and to report local and systemic characteristics observed in patients who underwent implant explantation.MATERIAL AND METHODSA total of 494 administrative records were initially retrieved from the database. After elimination of duplicates, 464 medical records of patients who underwent implant explantation between 2005 and 2021 in thirteen private clinics in Switzerland were screened. Information regarding implant history, local (oral health, periodontal and prosthetic status) and systemic (systemic diseases, medication, and smoking) characteristics was assessed through the medical records and the radiographic data. ISRCTN registry (ISRCTN10631004).RESULTSIn total, 399 patients and 521 implants were included in the analysis. Peri-implantitis was the most frequent reason for explantation (62%). Explantation was mainly performed in cases of advanced peri-implantitis with a mean bone loss of 62.92% of the implant length. Most patients had radiographic bone loss around the remaining dentition with a bone loss/age ratio of 0.74, presented compromised oral health, and 47.80% of them were smokers. Moreover, only 56.12% of patients reported being in good systemic health.CONCLUSIONImplant explantations were typically performed once bone loss reached approximately 60% of the implant length. They were most often observed in advanced cases of peri-implantitis and in patients with high-risk profiles for periodontal breakdown, such as a history of periodontal disease or heavy smoking habits.","PeriodicalId":10455,"journal":{"name":"Clinical Oral Implants Research","volume":"1 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144639951","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}