International Journal of Implant Dentistry最新文献

{"title":"Horizontal vascular-stalked split osteotomy (HVSO): a bone augmentation technique for the atrophic jaw- a retrospective cohort study in 29 patients.","authors":"Dirk Nolte, Johannes Angermair, Heidi Bradatsch, Rolf Ewers, Michael Alfertshofer, Robert Linsenmann, Sven Otto, Karin Christine Huth","doi":"10.1186/s40729-025-00608-8","DOIUrl":"10.1186/s40729-025-00608-8","url":null,"abstract":"<p><strong>Background: </strong>Implant therapy in the advanced atrophic jaw remains challenging in oral and maxillofacial surgery. Hence, a plethora of different augmentation procedures to increase bone volume in the maxilla and mandible have been published. Horizontal vascular-stalked split osteotomy (HVSO) represents a safe and effective approach for the three-dimensional jaw augmentation since it combines maximum vascularization through lingual or palatinal periosteal stalking with reduced grafting morbidity.</p><p><strong>Objective: </strong>To analyze the efficacy of HVSO for implantation therapy in atrophic jaws by assessing vertical bone gain and implant survival rates.</p><p><strong>Materials and methods: </strong>A total of n = 29 patients (14 females, 15 males) with a mean age of 55.4 ± 10.0 years and reduced volume of the alveolar ridge were retrospectively analyzed after treatment with 34 HVSOs in the maxilla and mandible. After controlled clinical follow-up of six months after augmentation, enossal implantation of 79 implants (maxilla 45, mandible 34) was performed. A standardized two-dimensional radiological assessment with panoramic tomography (OPTG) of the augmented bone height and clinical evaluation of the implants was performed over a mean follow-up period of 2.3 years.</p><p><strong>Results: </strong>HVSO resulted in a significant increase in vertical bone height by 4.4 mm ± 2.0 mm (mean vertical gain: +59.4%) with + 101% in the maxilla and + 27.5% in the mandible directly after the procedure (T1), with both p < 0.001. After a mean observation period of 2.3 years bone height remained stable with a total gain of 41.4% (maxilla: 72.6%, mandible: 18.6%), with p < 0.001 and p = 0.001, respectively. Overall implant survival rate was 91% (maxilla: 89%; mandible: 94%).</p><p><strong>Conclusion: </strong>HVSO reliably supports significantly enhanced vertical bone height with long-term stable results, thereby facilitating successful implantation in atrophic jaws with high implant survival rates observed over an extended follow-up period.</p><p><strong>Clinical trial number: </strong>Not applicable as the study was no clinical trial.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"18"},"PeriodicalIF":3.1,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11889328/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143585732","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":"Primary implant stability of two implant macro-designs in different alveolar ridge morphologies: an in vitro study.","authors":"Anna Jenner, Gabriela P Sabatini, Samir Abou-Ayash, Emilio Couso-Queiruga, Vivianne Chappuis, Clemens Raabe","doi":"10.1186/s40729-025-00605-x","DOIUrl":"10.1186/s40729-025-00605-x","url":null,"abstract":"<p><strong>Purpose: </strong>The primary aim of this in vitro study was to investigate the primary implant stability obtained in immediate and late implant placement scenarios. Secondary aims evaluated the effect of two distinct implant macro-designs and examined the correlation between resonance frequency analysis (RFA) and final insertion torque.</p><p><strong>Methods: </strong>Partially edentulous maxillary models including six single sites simulating extraction sockets and healed alveolar ridges were used. Virtual implant planning facilitated static computer-assisted implant placement of bone level implants with either a shallow-threaded and cylindrical (BL), or deep-threaded and tapered implant macro-design (BLX). The insertion torque was continuously measured during implant placement, and RFA was performed after final implant positioning.</p><p><strong>Results: </strong>One-hundred and forty-four implants were equally distributed to two alveolar ridge morphologies and implant designs. Higher final insertion torque and RFA values were observed for implants placed in healed ridges compared to extraction sockets (40.8 ± 13.5 vs. 20.6 ± 8.4 Ncm, and RFA 70.7 ± 2.8 vs. 59.6 ± 6.5, both p < 0.001), and for BL implants compared to BLX implants (35.7 ± 13.0 vs. 25.7 ± 8.9 Ncm, and RFA 66.7 ± 4.4 vs. 63.6 ± 4.9, both p < 0.001). Insertion torque and mean RFA values positively correlated (r = 0.742; p < 0.001).</p><p><strong>Conclusion: </strong>Primary implant stability is significantly affected by the alveolar ridge morphology and the implant macro-design, demonstrating higher values in healed sites and shallow-threaded, cylindrical implants. Therefore, a tailored selection of the implant design depending on the implant placement and loading protocol is recommended.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"17"},"PeriodicalIF":3.1,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11885739/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566901","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 influence of platform switching and platform matching on marginal bone loss in immediately inserted dental implants: a retrospective clinical study.","authors":"Sameh Attia, Tugce Aykanat, Veronika Chuchmová, Kim Natalie Stolte, Ben Harder, Lucas Schilling, Philipp Streckbein, Hans-Peter Howaldt, Abanoub Riad, Sebastian Böttger","doi":"10.1186/s40729-025-00604-y","DOIUrl":"10.1186/s40729-025-00604-y","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this retrospective study was to investigate and compare the effects of platform switching (PS) and platform matching (PM) on marginal bone loss (MBL) and clinical parameters in immediately inserted dental implants.</p><p><strong>Methods: </strong>Thirty-seven patients were included (PS group: twenty-one patients, PM group: sixteen patients), with follow-up periods ranging from six months to 23 years. MBL was measured using orthopantomograms (OPG), and implant success was evaluated using the Buser, Albrektsson, and Attia criteria. Regression analysis was conducted to assess total bone loss.</p><p><strong>Results: </strong>The BEGO RI implant system was used in 83.8% of cases. Mesial MBL averaged 0.26 mm in the PS group and 0.75 mm in the PM group, while distal MBL was 0.68 mm for the PS group and 0.53 mm for the PM group. A significant difference was observed in mesial MBL, with the PS group showing less bone loss (p. = 0.044). Regression analysis indicated that PM implants were associated with significantly greater mesial bone loss compared to PS implants (p. = 0.039). No significant differences in implant success were observed between the PS and PM groups based on the Buser score, Albrektsson criteria, and Attia score.</p><p><strong>Conclusion: </strong>Both PS and PM implants showed comparable long-term functionality. No significant differences were found in total bone loss between the groups, but PS implants showed significantly lower mesial MBL. While both systems are viable for immediate implantation, PS implants may offer advantages in preserving peri-implant bone. Further prospective studies are needed to validate these findings.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"16"},"PeriodicalIF":3.1,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11880450/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143541938","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":"Correction: Treatment of peri-implant mucositis using an Er:YAG laser or an ultrasonic device: a randomized, controlled clinical trial.","authors":"Viveca Wallin Bengtsson, Akira Aoki, Koji Mizutani, Christel Lindahl, Stefan Renvert","doi":"10.1186/s40729-025-00599-6","DOIUrl":"10.1186/s40729-025-00599-6","url":null,"abstract":"","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"15"},"PeriodicalIF":3.1,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11865375/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143500787","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":"Application of virtual planning to maxillofacial reconstruction with an implant prosthesis: a case report.","authors":"Yutaro Oyamada, Hiroyuki Yamada, Ikuya Miyamoto, Hisatomo Kondo","doi":"10.1186/s40729-025-00600-2","DOIUrl":"10.1186/s40729-025-00600-2","url":null,"abstract":"<p><strong>Background: </strong>A case of postoperative mandibular defects was successfully managed using an intraoral scanner and computer-aided design/computer-aided manufacturing (CAD/CAM) technology, facilitating jaw reconstruction and functional restoration with implants for a critical mandibular defect.</p><p><strong>Case presentation: </strong>The intraoral scanner was used to scan the maxilla and mandible, and occlusal scans were acquired. The obtained data were imported to CAD/CAM software to design the virtual teeth. Digital Imaging and Communications in Medicine data of preoperative cone-beam computed tomography images were converted to three-dimensional (3D) data using specialized software to examine the mandibular bone volume and modify the jawbone morphology. All data were superimposed on the implant simulation software, and jawbone morphology was modified considering the implant placement position. The finalized jawbone 3D data were printed using a 3D printer. Then, a titanium mesh tray was fabricated on the 3D printed model. Subsequently, iliac cancellous bone grafting using a titanium mesh tray and implant treatment were performed.</p><p><strong>Conclusions: </strong>The application of digital technology helped visualize the final image of the treatment result and collaborate closely with the oral surgeon from the pre-reconstruction stage. This technique allows mandible reconstruction after considering the implant placement based on the ideal prosthesis.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"14"},"PeriodicalIF":3.1,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11850690/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143483005","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":"Biofunctionalization of silk fibroin scaffolds with enamel matrix protein and injectable platelet rich fibrin for soft tissue augmentation: an in-ovo study.","authors":"Diana Heimes, Nadine Wiesmann-Imilowski, Timpe Heidebrecht, Sebastian Blatt, Andreas Pabst, Philipp Becker, Sandra Fuest, Jürgen Brieger, Ralf Smeets, Peer W Kämmerer","doi":"10.1186/s40729-025-00601-1","DOIUrl":"10.1186/s40729-025-00601-1","url":null,"abstract":"<p><strong>Purpose: </strong>Silk fibroin (SF) is a biomaterial derived from the cocoon of the mulberry silkworm. This study aimed to assess the capacity of SF matrices biologized with injectable platelet-rich fibrin (iPRF) or enamel matrix protein (EMP) to modulate angiogenesis and immune response in the chorioallantoic membrane (CAM) assay.</p><p><strong>Methods: </strong>300 eggs were divided into the following groups: CM + NaCl, CM + iPRF, CM + EMP, SF + NaCl, SF + iPRF, and SF + EMP. Matrices were applied to the CAM on embryonic development day (EDD) 7 after rehydration. Angiogenesis, represented by vascularized area, vessel density, and vessel junctions, was evaluated on EDD 10, 12, and 14. Additionally, gene expression of HIF-1ɑ, VEGF, MMP-13, and NOS2 was assessed via quantitative polymerase chain reaction (qPCR) on EDD 11 and 14.</p><p><strong>Results: </strong>The number of vascularized specimens was notably higher in SF matrices regardless of the treatment applied, while in the CM group, only matrices biofunctionalized with iPRF demonstrated vascularization. On EDD 14, the CM + iPRF group exhibited the highest values for total vascularized area (CM + iPRF: 57.52%, SF + iPRF: 21.87%, p < 0.001), vessel density (CM + iPRF: 0.0067 μm/µm², SF + iPRF: 0.0032 μm/µm², p = 0.002), number of vessel junctions (CM + iPRF: 14.45, SF + iPRF: 4.82, p = 0.001). Gene expressions displayed high data variability and no significant differences between the groups.</p><p><strong>Conclusions: </strong>Biofunctionalization with iPRF in CM leads to a high vascularization rate probably through their capability of retaining higher liquid volumes, suggesting improved intraoral wound healing after guided tissue regeneration (GTR). Despite biofunctionalization, SF matrices exhibit a high vascularization, indicating SF as a promising material for GTR.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"13"},"PeriodicalIF":3.1,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11842663/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143457754","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":"Antibacterial potential of silver and zinc loaded plasma-electrolytic oxidation coatings for dental titanium implants.","authors":"Sabawun Paiwand, Sogand Schäfer, Alexander Kopp, Thomas Beikler, Imke Fiedler, Martin Gosau, Sandra Fuest, Ralf Smeets","doi":"10.1186/s40729-025-00595-w","DOIUrl":"10.1186/s40729-025-00595-w","url":null,"abstract":"<p><p>Peri-implantitis is known as an inflammatory condition affecting the soft and hard tissue around dental implants. A promising strategy to prevent these conditions is the use of antibacterial implants. This study aimed to evaluate the antibacterial potential of titanium (Ti) dental implants modified using plasma-electrolytic oxidation (PEO). The modified surfaces were subsequently loaded with silver (Ag) (n = 6) and zinc (Zn) (n = 6) ions and compared to unloaded Ti specimens (n = 6), with untreated specimens serving as controls. The specimens (each n = 5) were incubated in a culture medium containing a mixture of specific anaerobic bacterial strains. Scanning electron microscopy (SEM) was used to visualize the bacterial biofilm on each specimen. In addition, total bacterial deoxxyribonucleic acid (DNA) and the number of viable bacteria were determined using quantitative real-time polymerase chain reaction (qrt-PCR) and colony forming unit analysis (CFU), respectively. The results of the CFU analysis showed a 2 log (99%) reduction in viable bacteria in the samples loaded with Ag and Zn compared to the unloaded control group (p < 0.05). Moreover, significantly lower bacterial DNA counts were detected with a 5 log reduction (99.999%) in the Ag and Zn samples compared to the positive control group (bacterial mixed culture solution, p < 0.05). Therefore, it was considered that Ag and Zn loaded Ti implants may be a promising addition to current approaches to enable advanced antibacterial dental implants. However, further studies should be conducted to evaluate the in vivo cytocompatibility of the developed specimens.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"12"},"PeriodicalIF":3.1,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11833008/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143440886","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 investigation of bone temperature changes in osteotomies performed with different brands of implant burs.","authors":"Ömer Faruk Şarkbay, Ahmet Mihmanli, Hakan Cora","doi":"10.1186/s40729-025-00588-9","DOIUrl":"10.1186/s40729-025-00588-9","url":null,"abstract":"<p><p>The aim of this study was to investigate in-vitro the temperature changes occurring in the bone during drilling with implant drills manufactured by different companies. Bone blocks obtained from fresh bovine ribs were used in the study. Bone blocks were drilled with drills manufactured by Ankylos, Astra Tech, Nobel Biocare, Bredent and Straumann implant brands at an ambient temperature of 30 ± 2° C under a constant pressure of 2 kg. Two K-type thermocouple sensors were placed on the bone blocks at 5th and 10th mm depths and the temperature changes were measured at a distance of 1 mm from the implant drill. In the study, working models were created under different conditions for implant socket preparation. In group 1, the first time drills were used at 150 rpm without irrigation, in group 2, the first time drills were used at 1200 rpm with 40 ml/min irrigation, in group 3, the 30th time drills were used at 150 rpm without irrigation, and in group 4, the 30th time drills were used at 1200 rpm with 40 ml/min irrigation. All osteotomy procedures were performed with 3.5 ± 0.3 mm diameter burs for a period of 8 s and the temperature values obtained at equal time intervals were recorded. Repeated Measures and Kruskall Wallis-H tests were used for statistical analysis of the data. No significant difference was observed between the implant drills and the temperature changes in the bone during drilling (p < 0.05). None of the groups reached critical temperature values (47° C+) throughout the study. At the 5th and 10th mm depths, the temperature changes in the sensors used were close to each other. It was also calculated that although the average temperatures were close to each other in the non-irrigated and irrigated systems, the difference values obtained by subtracting the initial temperature were significantly higher in the non-irrigated systems. The results showed that implant drills did not cause significant temperature increases in bone blocks depending on the difference in manufacturers (Ankylos, Astra Tech, Nobel Biocare, Bredent, Straumann) and the number of uses. It was also concluded that irrigated and non-irrigated systems are safe as long as they are used under the recommended conditions.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"11"},"PeriodicalIF":3.1,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143399002","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":"A digital way to assess the stain parameters that lead to soft tissue blanching when delivering an implant-supported crown.","authors":"Serge Szmukler-Moncler, David Morales Schwarz, Jorge Manuel Perez, Florian Beuer","doi":"10.1186/s40729-025-00598-7","DOIUrl":"10.1186/s40729-025-00598-7","url":null,"abstract":"<p><strong>Background: </strong>Dental implant systems provide standard cylindrical healing abutments of various diameters; however, they do not match the larger shape of the complex emergence profile of the prosthetic crowns. Adaptation of the soft tissues from a circular emergence profile to the one that suits the prosthetic crown involves a simultaneous squeezing and stretching of the gingiva. Often, this translates into local blanching of the gingiva and the prosthodontist must assess that blanching is transient. There is no literature about how much strain exerted by the prosthetic crown is leading or not to gingiva blanching. Aim of this paper is to present a digital workflow that allows measuring, upon prosthesis delivery, how much the strained gingiva is displaced under the crown and leads or not to blanching of the peri-implant soft tissues.</p><p><strong>Method and results: </strong>The digital workflow involves 3 intra-oral scans (IOS), IOS#1 at completion of the soft tissue healing, IOS#2 at prosthesis delivery, IOS#3 after soft tissue conditioning, and the STL files of the healing cap, the abutment, the implant and the prosthetic crown. The above are superposed and merged following a dedicated protocol that provides access to the distance the delivered crown deforms the strained gingiva. The present case study displayed distinct blanching intensities. Severe blanching was present when the strains applied to the gingiva caused a displacement of 1.3 mm and above; a displacement of 0.9 mm led to moderate blanching. No blanching was observed up to a displacement of 0.6 mm.</p><p><strong>Conclusion: </strong>A digital protocol, involving the superposition and merging of IOSs taken along a defined timeline and STLs of the implant hardware, allowed measuring the displacement distances a prosthetic crown wields upon delivery on the gingiva beneath the prosthesis. Various intensities of gingiva blanching could be related to distinct displacement distances of the healed gingiva that were triggered by attaching a prosthetic crown to the implant neck.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"10"},"PeriodicalIF":3.1,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11811304/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143382348","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":"Electroplated double-crowns on implants and teeth after up to 12 years- a retrospective clinical study.","authors":"Christoph Mautsch, Jan Klenke, Thomas Kern, Stefan Wolfart, Jaana-Sophia Kern","doi":"10.1186/s40729-025-00594-x","DOIUrl":"10.1186/s40729-025-00594-x","url":null,"abstract":"<p><strong>Purpose: </strong>To retrospectively evaluate the outcome of implant-supported or combined tooth-implant-supported prostheses retained by electroplated double-crowns after 1-12 years.</p><p><strong>Methods: </strong>Twenty-five patients were retrospectively examined in a private dental practice in Hamburg, Germany. All had been rehabilitated with a removable prosthesis retained by electroplated double-crowns, for at least one year. Fifteen patients had implant-supported prostheses and 10 had combined tooth-implant-supported prostheses in the maxilla or the mandible. Biological and technical complications were recorded at the clinical examination and extracted from the patient records. Kaplan-Meier implant and tooth survival rates were calculated. Potential risk factors for severe complications were identified. Oral health-related quality of life (OHRQoL) was measured by a short version of the Oral Health Impact Profile (OHIP) questionnaire. Patients reported subjective chewing function using a visual analogue scale.</p><p><strong>Results: </strong>Kaplan-Meier survival rates were 100% for natural abutments and 90.9% for implants after 11.8 years (p = 0.54). Two implants in two patients were lost at 8 and 9 years due to peri-implantitis in the \"solely implant\" group. The most common complications were decementation of primary crowns and wear of the prosthetic teeth. The mean OHIP score for the group \"tooth-implant-supported\" was 5.2 ± 5.0, whereas the mean score for the \"solely implant\" group was 1.7 ± 2.9 (p = 0.039). Patients rated their subjective masticatory function very high with an average score of 9.4 ± 0.8 out of a possible 10.</p><p><strong>Conclusions: </strong>Implant-supported or combined tooth-implant-supported prostheses retained by electroplated double-crowns are a viable method of treatment with a satisfactory outcome. Maintenance has been manageable and patients have reported very good subjective chewing function after several years of function.</p>","PeriodicalId":14076,"journal":{"name":"International Journal of Implant Dentistry","volume":"11 1","pages":"9"},"PeriodicalIF":3.1,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11790550/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143079839","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}