The International journal of oral & maxillofacial implants最新文献

{"title":"Peri-implantitis Risk Assessment (Pira) Part 2: Retrospective Study and Framework for an Evidence-Based Prediction Model for Clinicians.","authors":"Marc Quirynen, Mihai Tarce, Manoetjer Siawasch, Ana B Castro, Andy Temmerman, Wim Coucke, Wim Teughels","doi":"10.11607/jomi.11211","DOIUrl":"https://doi.org/10.11607/jomi.11211","url":null,"abstract":"<p><strong>Aim: </strong>To develop an online tool based on an evidence-based predictive model, which allows clinicians to accurately predict the risk of peri-implantitis in candidates for dental implant therapy.</p><p><strong>Material & methods: </strong>A retrospective study of patients attending a university implant review clinic was performed. The presence of peri-implantitis and related risk factors were recorded. A predictive model for peri-implantitis was then developed based on this data.</p><p><strong>Results: </strong>460 patients having 1,432 implants were included. Peri-implantitis was found in 78 (17%) patients. For partially edentulous patients (n=350, 60% female, average age 64.1 years), susceptibility to periodontitis (OR 0.48 [0.24;0.94], p = 0.03), the number of sites with probing pocket depth ³ 5 mm (OR 0.2 [0.10;0.40], p < 0.01) and smoking (OR 0.25 [0.09;0.66], p < 0.01) were significantly associated with peri-implantitis. For fully edentulous patients (n=50, 72% female, average age 72.2 years), implants placed in the maxilla displayed a greater risk (OR 0.15 [0.02;0.87], p = 0.03) of developing periimplantitis. A predictive model for the development of peri-implantitis was created, based on 8 patient-related risk factors for partially edentulous patients (sensitivity = 90.2%, specificity = 55.0%) and 4 risk factors for fully edentulous patients (sensitivity = 100%, specificity = 51.3%).</p><p><strong>Conclusions: </strong>The predictive model can be used for a pre-operative risk assessment of partially edentulous patients. Further validation and refinement of the model with additional data could enable its use for fully edentulous patients, and will improve its predictive power, thereby increasing its reliability.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-21"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287636","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 Electrolytic Cleaning on Mechanical Properties for Titanium Dental Implants with Surface Contamination.","authors":"Darcio Fonseca, Ramón Pons, Beatriz de Tapia, Alberto Monje, José Nart, Conrado Aparicio, Javier Gil","doi":"10.11607/jomi.11082","DOIUrl":"https://doi.org/10.11607/jomi.11082","url":null,"abstract":"<p><strong>Purpose: </strong>Recently, galvanic cleaning techniques, such as Galvosurge®, which utilize hydrogen formation, have demonstrated significant efficacy in removing biofilm during the decontamination of implant surfaces in the reconstructive therapy of peri-implantitis, This decontamination method avoids the mechanization of the implant and therefore avoids the loss of mechanical properties, loss of good corrosion behavior and avoids the release of particles of different sizes with possible toxic effects, However, the formation of hydrogen on the surface could cause diffusion into the titanium and lead to hydrogen embrittlement of the dental implant, In this study we intend to study the effect of this treatment on the mechanical properties of dental implants, Materials and methods: Ninety dental implants were studied, of which 30 were control, 30 were treated with Galvosurge® and 30 were treated with concentrated hypochlorous acid, The amount of hydrogen in the titanium interior was determined for each of the samples by spectroscopy to elemental analysis of hydrogen TCH600 LECO. Electrochemical corrosion tests were performed on 30 dental implants to determine the corrosion potentials and corrosion intensity for the different treatments. One important factor for the fatigue behavior are the residual stresses which were studied by by Bragg-Bentano X-ray diffraction. Residual stresses were studied by by Bragg-Bentano X-ray diffraction. Fatigue tests were performed using a servohydraulic machine determining the S-N curves by performing triaxial tests (tensioncompression and 5 ̊ torsion) at different loads to simulate human mastication. A study of the fractures of the dental implants was carried out by scanning electron microscopy and the samples were observed by transmission electron microscopy to observe the possible appearance of hydrides in the titanium microstructure, Results: The results showed that the electrolytic technique reduces the presence of hydrogen in the dental implant and the acid treatment increases it causing the presence of hydrides at the grain boundaries of the titanium, It has been shown that galvanic treatments do not affect the corrosion resistance of dental implants. However, attacks with hypochlorous acid increase the corrosion rate due to the acid attack on the titanium surface that favors pitting points. Fatigue tests show that dental implants treated with Galvosurge® have a longer fatigue life than the control due to the lower hydrogen content, It was shown that the increase of hydrogen in the acid-treated implants reduces the fatigue life of the dental implant, Conclusions: This study allows us to conclude that the formation of hydrogen by electrolysis does not cause a diffusion of this element to the titanium nor does it affect corrosion resistance but on the contrary reduces the level of hydrogen which favors its mechanical properties in the long term.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-29"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287699","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":"Peri-implantitis Risk Assessment (PiRA) Part 1: Umbrella review of a Multifactorial Disease With Many Risk Factors.","authors":"Mihai Tarce, Marc Quirynen","doi":"10.11607/jomi.11107","DOIUrl":"https://doi.org/10.11607/jomi.11107","url":null,"abstract":"<p><strong>Aim: </strong>An objective pre-operative assessment of patients' susceptibility to peri-implantitis could reduce the incidence of the disease and may be helpful in convincing patients to change their lifestyle, thereby reducing risk factors, or to forgo implant therapy in high-risk conditions.</p><p><strong>Material & methods: </strong>An umbrella review was performed to identify patientrelated risk factors, together with their relative impact (odds ratio/relative risk). Potential treatment-related confounders for the development of peri-implantitis were also searched for.</p><p><strong>Results: </strong>Ten relevant patient-related risk factors for peri-implantitis were identified. While some of them are modifiable (smoking, bleeding on probing, plaque control, number of sites with PPD ≥ 5 mm, recall frequency, occlusal overload), others are not (history of periodontitis, implant location, number of teeth lost, systemic diseases). The relative impact of these factors differed largely between systematic reviews, most of which unfortunately limited their analysis to one or only a few factors, without taking other factors into consideration, with the potential risk of misinterpretation/overrating. Moreover, patients' susceptibility might change due to a number of confounders (iatrogenic factors, surgical protocol, implant and implant site characteristics, etc.), and these factors should also be considered.</p><p><strong>Conclusions: </strong>The number of risk factors and potential confounders underline the complexity and multi-factorial etiology of peri-implantitis.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144287635","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":"The Influence of Clinician Experience on the Primary Stability of Tri-Oval Versus Standard Parallel-Walled Implants Placed Using Different Surgical Protocols: An Ex Vivo Study.","authors":"Merve Çakır, Gül Merve Yalçın Ülker, Sina Saygılı, Mehmet Akif, Süleyman Çağatay Dayan, Bahadır Kan, Onur Geçkili","doi":"10.11607/jomi.11371","DOIUrl":"https://doi.org/10.11607/jomi.11371","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the effect that clinical experience has on implant primary stability using insertion torque (IT) and resonance frequency analyses (RFA) from two different drilling protocols: (1) implant-specific osteotomy protocol and (2) conventional drilling.</p><p><strong>Materials and methods: </strong>A total of 60 tri-oval and 60 parallel-walled implants were placed in fresh bovine ribs by three clinicians (B.K., M.Ç., and M.A.D), who were classified according to the total number of implants they had previously placed. Tri-oval implants were placed with an implant-specific osteotomy protocol, and parallel implants were placed with conventional drilling. The ITs of the implants were measured by the same clinician who performed the operation. An independent examiner (O.G.) measured the RFA of all implants after placement via a resonance frequency analyzer.</p><p><strong>Results: </strong>In the IT evaluation, no statistical significance was observed between the clinicians and both tri-oval implants and parallel implants (P = .293 and P = .98, respectively); in all experience levels, the ITs were significantly lower in parallel implants. Additionally, across all experience levels, tri-oval implants demonstrated greater RFA values than parallel implants (P = .001). Within-group comparisons of RFA by experience level for the tri-oval implants did not show a statistically significant difference (P = .950). However, in parallel implants, there was a significant difference between the moderately experienced and inexperienced groups (P = .019).</p><p><strong>Conclusions: </strong>The implant-specific osteotomy procedure with tri-oval implants offers greater primary stability compared to conventional osteotomy with parallel-walled implants, regardless of the clinician's experience.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144251622","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":"Treatment of Peri-implant Mucositis: An AAP/AO Systematic Review and Meta-analysis.","authors":"Guo-Hao Lin, Leandro Chambrone, Yogalakshmi Rajendran, Gustavo Avila-Ortiz","doi":"10.11607/jomi.2025suppl2","DOIUrl":"10.11607/jomi.2025suppl2","url":null,"abstract":"<p><strong>Purpose: </strong>To assess whether adjunctive treatment modalities offer therapeutic advantages when used in combination with peri-implant debridement-defined as supra- and/or submarginal debridement using manual, sonic, and/or ultrasonic instrumentation-for the treatment of peri-implant mucositis.</p><p><strong>Materials and methods: </strong>Relevant articles published in English between January 1980 and October 2023 were searched. Clinical trials involving ≥ 10 patients diagnosed with peri-implant mucositis and treated with debridement alone versus debridement plus an adjunctive treatment were included. Data were extracted and meta-analyses were performed to investigate the effect of different therapeutic approaches on several outcomes of interest (ie, pocket depth [PD] and bleeding on probing [BoP] reduction as well as complete disease resolution).</p><p><strong>Results: </strong>A total of 25 articles were selected, of which 19 were included in the meta-analyses. Peri-implant debridement generally resulted in PD and BoP reduction. For studies including nonsmokers or patients with unclear smoking status, outcomes of individual studies revealed that the use of certain probiotics, such as Lactobacillus reuteri strains, may modestly reduce BoP in the short term. For studies exclusively involving smokers or users of vapes/ electronic cigarettes, the clinical benefits of adjunctive therapy were negligible. Complete disease resolution was not consistently achieved regardless of the treatment modality.</p><p><strong>Conclusions: </strong>Peri-implant debridement as a monotherapy for the treatment of peri-implant mucositis generally results in clinical improvements in terms of PD and BoP reduction. The use of adjunctive treatment modalities does not appear to provide a clinically significant additional therapeutic benefit compared to debridement alone, independent of the patient's smoking status. Complete peri-implant mucositis resolution is an elusive outcome.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":" 4","pages":"49-72"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236372","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":"Surgical Reconstructive Therapy for the Management of Peri-implantitis: An AAP/AO Systematic Review and Network Meta-analysis.","authors":"Shayan Barootchi, Alberto Monje, Hamoun Sabri, Paul S Rosen, Hom-Lay Wang","doi":"10.11607/jomi.2025suppl1","DOIUrl":"10.11607/jomi.2025suppl1","url":null,"abstract":"<p><strong>Purpose: </strong>Reports on the occurrence of peri-implant diseases date back nearly two decades. Despite the attempts taken toward the management of this disease, the literature still lacks a common remedy for predictable treatment. This best evidence consensus review was conducted in preparation for the joint consensus between the American Academy of Periodontology (AAP) and the Academy of Osseointegration (AO) to systematically analyze the clinical research in the field of surgical reconstructive therapy for peri-implantitis.</p><p><strong>Materials and methods: </strong>A detailed systematic search was conducted to identify eligible clinical research reporting the outcomes of surgical reconstructive therapy for periimplantitis. The retrieved nonrandomized studies were analyzed descriptively, while the data from randomized control trials (RCTs) were fit to a series of mixed models that analyzed the individual components of the study arms and rendered treatments for the outcomes of probing pocket depth (PPD) reduction, radiographic marginal bone level (Rx MBL) gain, reduction in bleeding on probing (BoP) and suppuration (SUP), as well as mucosal recession (MREC).</p><p><strong>Results: </strong>A total of 18 reports on RCTs were eligible for quantitative assessment (635 patients, 687 implants). The results indicated that surgical reconstructive approaches for peri-implantitis (based on 319 patients and 345 implants), when compared to a nonreconstructive treatment modality (ie, open flap debridement alone based on 316 patients and 342 implants), was effective in reducing PPD, minimizing MREC, as well as increasing Rx MBL gain. However, there was no additional benefit from employing a reconstructive approach regarding the outcomes of BoP and SUP reduction. Several other baseline covariates such as site (initial PPD, MBL, and BoP) and systemic factors (eg, smoking) were also found to significantly impact the therapeutic outcomes. Mechanical decontamination methods as well as individual components of the augmentation approach were also found to significantly affect the outcomes.</p><p><strong>Conclusions: </strong>Within the limitations of this study, it was demonstrated that the surgical treatment of infrabony peri-implantitis defects can lead to PPD reduction, MREC reduction, and Rx MBL gain and was found to be superior to nonreconstructive treatment. However, there were no significant differences between the two modalities of therapy for the outcomes of BoP and SUP. Reconstructive therapy may provide a suitable approach for managing peri-implantitis-related infrabony defects.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":" 4","pages":"1-48"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236371","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":"Efficacy of Decontamination Methods for Biofilm Removal from Dental Implant Surfaces and Reosseointegration: An AAP/AO Systematic Review on Peri-implant Diseases and Conditions.","authors":"Andrea Ravidà, Debora R Dias, Robert Lemke, Paul S Rosen, Martinna M Bertolini","doi":"10.11607/ jomi.2025suppl4","DOIUrl":"https://doi.org/10.11607/ jomi.2025suppl4","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the nonclinical evidence concerning the efficacy of different decontamination methods in facilitating reosseointegration, eliminating biofilm from implant surfaces, and their potential to induce adverse surface modifications and release of material remnants.</p><p><strong>Materials and methods: </strong>Systematic electronic and manual searches were conducted to identify publications involving animal or human block biopsies, ex vivo/in situ studies, and in vitro studies. Mechanical, chemical, and electrolytic methods for implant decontamination were presented in a descriptive analysis.</p><p><strong>Results: </strong>A total of 121 studies were included, namely 46 involving animal/human biopsies, 39 ex vivo/in situ experiments, and 36 in vitro investigations. No modality demonstrated significant superiority in terms of reosseointegration outcomes. Ex vivo, in situ, and in vitro studies reported that greater biofilm removal from implant surfaces occurred with polyetheretherketone (PEEK) ultrasonic tips, air-powder abrasive (APA), erbium: yttrium-aluminum-garnet (Er:YAG) laser, and electrolytic cleaning. Minimal surface alterations were noted with soaked cotton pellets, APA, specific settings of Er:YAG laser, erbium, chromium: yttrium-scandium-gallium-garnet (Er,Cr:YSGG) laser, electrolytic treatment, and cold atmospheric plasma. Titanium or stainless steel curettes, ultrasonic tips, titanium brushes, and implantoplasty induced significant surface alterations and peak flattening of implant threads. Plastic and carbon curettes as well as PEEK ultrasonic tips and APA left material remnants.</p><p><strong>Conclusions: </strong>Implant reosseointegration is possible following appropriate surface decontamination. Application of Er:YAG laser, electrolytic cleaning, and APA stand out as the methods that most closely embody the ideal characteristics of an effective decontamination protocol.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":" 4","pages":"91-160"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236358","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":"Efficacy of Nonreconstructive Surgical Treatment of Peri-implantitis: An AAP/AO Systematic Review and Meta-analysis of Access Flap Versus Osseous Surgery Procedures.","authors":"Muhammad H A Saleh, Craig Misch, Abdusalam Alrmali, Rodrigo Neiva","doi":"10.11607/jomi.2025suppl3","DOIUrl":"10.11607/jomi.2025suppl3","url":null,"abstract":"<p><strong>Purpose: </strong>To estimate and compare the effect of two different nonreconstructive surgical techniques for treating periimplantitis.</p><p><strong>Materials and methods: </strong>An electronic search was performed in PubMed, Web of Science, Embase, Scopus, Ovid Medline, and the Cochrane Library of the Cochrane Collaboration (CENTRAL) for articles published until September 2023. Studies evaluating surgical nonreconstructive techniques for the treatment of peri-implantitis were included. The primary outcomes were changes in pocket probing depth (PPD) and bleeding on probing (BoP). Secondary outcomes included marginal bone levels (MBLs) and plaque index (PI) changes. Meta-analysis and meta-regression were performed. The Grading of Recommendations Assessment, Development, and Evaluation (GRADE) approach was used to determine the quality of evidence. Results were grouped according to their treatment techniques: (1) flap surgeries and (2) osseous resective surgeries (nonreconstructive).</p><p><strong>Results: </strong>The final stage of screening included 15 clinical trials. At 12 months, the flap group had a mean PPD reduction of 1.27 mm (95% CI: 0.67-1.87; I2 = 95.9%), and the osseous resective group had a PPD reduction of 1.88 mm (95% CI: 1.39-2.37; I2 = 97.1%), showing no significant differences (P = .119). Regarding BoP, there were no significant differences between the two techniques at 3, 6, or 12 months. For MBL, at 12 months, the flap group showed less bone loss than the osseous resective group (mean difference = 0.73 mm; P < .001).</p><p><strong>Conclusions: </strong>Both nonreconstructive surgical interventions were effective in managing peri-implantitis. Moderate-quality evidence suggested that flap surgeries may provide a slight advantage in maintaining MBLs compared to osseous resective surgery.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":" 4","pages":"73-90"},"PeriodicalIF":0.0,"publicationDate":"2025-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144236359","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":"Equivalent Outcomes Following Submerged or Trans-Mucosal Guided Bone Regeneration Procedures Using a Bioactive Collagen Membrane: A Prospective Case Series.","authors":"Brent Allan, Rudolf Boeddinghaus, Andrew Whyte, Mithran Goonewardene, Anh Thi Mai Nguyen, Christopher A Mitchell","doi":"10.11607/jomi.11043","DOIUrl":"https://doi.org/10.11607/jomi.11043","url":null,"abstract":"<p><strong>Purpose: </strong>This case series aimed to compare the clinical and radiographic outcomes of patients receiving two different healing strategies for their guided bone regeneration (GBR) procedures using a novel collagen membrane to support the implant placement.</p><p><strong>Materials and methods: </strong>A total of 20 patients (27 implants) were included. They either received transmucosal (n = 10; 11 teeth) or submerged (n = 10; 16 teeth) GBR procedures. A standardized cone-beam computed tomography (CBCT) scan protocol was performed immediately post-surgery and in a follow-up visit at 4-6 months post-surgery. The distance from the implant shoulder to the first bone-to-implant contact on the sides of the implant (DIB), the horizontal dimension of the buccal alveolar crests, complication rate, pain score, and quality of newly formed bone in the submerged group, were reported.</p><p><strong>Results: </strong>Healing at all implant sites was uneventful, with mild swelling and inflammation within normal post-surgical limits. Between-group quantitative analysis of CBCT images obtained immediately post-surgery (CBCT1) and at 4-6 months later (CBCT2) showed no statistical difference in any parameter. Facial bone wall thickness at 1, 3 & 5mm below the implant shoulder significantly decreased in both submerged and trans-mucosal procedure participants in CBCT2 compared to CBCT1.</p><p><strong>Conclusions: </strong>Outcomes of GBR treatment are consistent with established clinical and preclinical evidence for the safety and performance of collagen barrier membranes in either submerged or trans-mucosal GBR procedures and these two different healing strategies exhibited similar clinical and radiographic outcomes.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"1-28"},"PeriodicalIF":0.0,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144188685","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":"The Effects of Using PEEK Copings and Different Restorative Materials on the Stress Distribution in Tooth-and-Implant-Supported Prostheses Under Static Loading: 3D FEA.","authors":"Aynil Keskin, Ammar Kayssoun","doi":"10.11607/jomi.11005","DOIUrl":"10.11607/jomi.11005","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the influence of using polyetheretherketone (PEEK) copings and/or three different dental restorative materials for the success of tooth-and-implant-supported fixed partial dentures (TISFPDs) in the maxillary posterior region under static loading via 3D finite element analysis (3D FEA).</p><p><strong>Materials and methods: </strong>Six 3D FEA models were designed for the extraction of maxillary first and second molars. The following elements were modeled: bone, implant, abutment, PEEK copings, second premolar, periodontal ligament (PDL), and six three-unit TISFPDs with different restorative materials (porcelain-fused-to metal [PFM], PEEK-composite [PC], monolithic zirconia [MZ]). Then PEEK copings were modeled to be cemented onto the implants as a double-crown system for the first three groups (PFMPEEK, PCPEEK, and MZPEEK), whereas the next three groups (PFM, PC, and MZ) excluded a PEEK coping in their designs. The prostheses were loaded twice-once vertically and once obliquely. From the determined points, 250 N for vertical loading (0 degrees to the long axis) and 200 N for the oblique loading (30 degrees to the long axis) were applied. Von Mises stresses and maximum and minimum principal stress values were analyzed.</p><p><strong>Results: </strong>Regardless of the material used for the suprastructure, the maximum average stress was reduced by the use of PEEK copings. Considering the maximum stress distribution, PC appeared to have the highest stresses on the cortical bone, implant, and screw. Additionally, the von Mises stresses formed in the PDL model were lower when a PEEK coping was included in the design of the TISFPD, reducing the risk of intrusion.</p><p><strong>Conclusions: </strong>The stress distribution was positively affected by the PEEK coping in the TISFPD design, reducing bone resorption and failure. This elastic material generated lower stresses at the bone and implant, and no significant effect was found on stresses around natural teeth.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"371-381"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141877113","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}