The International journal of oral & maxillofacial implants最新文献

{"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":"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":"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":"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":"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}

{"title":"The Potential Risk: Evaluation of HbA1c Levels Prior to Dental Implant Surgery in Patients Without a Diagnosis of Diabetes Mellitus.","authors":"Elif Çoban, Berkan Altay","doi":"10.11607/jomi.11087","DOIUrl":"10.11607/jomi.11087","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate glycated hemoglobin (HbA1c) levels in patients who have not been diagnosed with diabetes mellitus (DM) but exhibit oral DM symptoms prior to dental implant surgery.</p><p><strong>Materials and methods: </strong>This study was designed as a retrospective cohort. It was conducted on patients who previously presented to the Department of Oral and Maxillofacial Surgery for dental implant surgery and had not been diagnosed with DM. The inclusion criteria were as follows: patients with the need for dental implants and augmentation, presence of oral DM symptoms, and access to blood test results that included HbA1c. Patients with a prior diagnosis of DM were excluded from the study.</p><p><strong>Results: </strong>A retrospective analysis was conducted on data from 253 patients who applied for dental implant surgery. Among them, 72 patients underwent HbA1c level assessments via blood tests. Patients with previously uncontrolled DM (n = 21) and those whose blood tests were performed at different institutions (n = 8) were excluded from the study. Consequently, the study encompassed a cohort of 43 patients. Among the participants, 55% of them were female and 45% of them were male. The HbA1c values of the patients ranged from 5.1 to 10.9, with an average value of 6.57 ± 1.44. Of the patients, 41.8% were diagnosed with DM, 30.2% were prediabetic (preDM), and 27.9% did not receive any diagnosis. There was no statistically significant relationship between the combinations of xerostomia, delayed wound healing, oral infection, burning sensation in the mouth, periodontitis, and dental caries with HbA1c levels (P > .05). In this study, patients presenting to the clinic for dental implant surgery were directed based on oral symptom findings, and the rates of diagnosed DM and preDM were determined to be 7.11% and 5.14%, respectively.</p><p><strong>Conclusions: </strong>Considering the negative effects and prevalence of uncontrolled DM, it may be recommended to assess the HbA1c levels in patients with oral symptoms before dental implant surgery.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"40 3","pages":"307-312"},"PeriodicalIF":1.7,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144183387","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 Occlusal and Axial Thickness on the Fracture Load of Implant-Supported Monolithic Zirconia Crowns.","authors":"Min-Gyung Seo, Kyung-Ho Ko, Yoon-Hyuk Huh, Chan-Jin Park, Lee-Ra Cho","doi":"10.11607/jomi.11086","DOIUrl":"10.11607/jomi.11086","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the fracture load of monolithic zirconia (Zr) crowns with implant screw holes, focusing on variations in occlusal and axial thicknesses, and to assess the interaction between these variables.</p><p><strong>Materials and methods: </strong>Six different prostheses were designed using CAD software, all of which varied in occlusal thickness (0.5 mm, 1.0 mm) and axial thickness (0.4 mm, 0.8 mm, 1.2 mm) based on the height and thickness differences of the titanium (Ti) implant abutment. A total of 12 specimens per design were created by milling Zr blocks and Ti abutments. These specimens were cemented with resin and subjected to thermomechanical aging (50 N; 200,000 cycles; 5°C to 55°C; 30-second dwell time) using a chewing simulator. Static loading was applied using a universal testing machine at a rate of 0.5 mm per minute until fracture occurred, and the load value (N) at the moment of the initial fracture was recorded. Fracture pattern and surface analyses were performed. Statistical analyses included two-way analysis of variance (ANOVA), Tukey HSD test, multiple regression analysis, and Fisher's exact test.</p><p><strong>Results: </strong>Both occlusal and axial thicknesses significantly influenced the fracture load (P < .05), and a significant interaction was found between them (P < .05). An occlusal thickness of 1.0 mm exhibited a significantly higher fracture load compared to 0.5 mm (P < .05). An axial thickness of 1.2 mm showed a significantly higher fracture load compared to 0.4 and 0.8 mm (P < .05). The difference in axial thickness between 0.8 and 1.2 mm had a more substantial impact on fracture load than the difference in occlusal thickness between 0.5 and 1.0 mm (P < .05). Fractographic analysis showed that the thin axial wall exhibited twist hackles without involvement of the crown margin, whereas the thick axial wall exhibited no hackles and a more catastrophic failure involving the crown margin.</p><p><strong>Conclusions: </strong>For monolithic Zr crowns with implant screw holes, when sufficient occlusal thickness cannot be achieved, an axial thickness of at least 1.2 mm is recommended to ensure higher fracture resistance.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"313-320"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142515586","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":"Correlations Between Bone Turnover Marker Concentrations and Maxillary and Mandibular Cancellous Hounsfield Units: A Cross-Sectional Study.","authors":"Yusuke Kondo, Chihiro Masaki, Kentaro Hata, Masafumi Oda, Yasuhiro Morimoto, Ryuji Hosokawa","doi":"10.11607/jomi.11081","DOIUrl":"10.11607/jomi.11081","url":null,"abstract":"<p><strong>Purpose: </strong>To investigate the associations between the concentrations of bone turnover markers and maxillary and mandibular cancellous Hounsfield units (HUs) to determine whether bone turnover marker (BTM) assessments are effective for preoperative examinations for implant treatment.</p><p><strong>Materials and methods: </strong>The study included 94 patients (37 males and 57 females) with a mean age of 62.0 ± 11.9 years. Spearman's rank correlation and multivariate linear regression coefficients were used to determine the associations between the BTMs and maxillary and mandibular cancellous HUs.</p><p><strong>Results: </strong>Multivariate bias correction showed that the concentrations of bone-specific alkaline phosphatase, procollagen type 1 N-terminal propeptide, and deoxypyridinoline were negatively associated with the maxillary HUs. The concentration of undercarboxylated osteocalcin tended to be negatively associated with the maxillary HUs but was not significant. The concentrations of deoxypyridinoline and tartrate-resistant acid phosphatase 5b were significantly negatively associated, and the concentrations of bone-specific alkaline phosphatase and procollagen type 1 N-terminal propeptide only tended to be negatively associated, with the mandibular HUs.</p><p><strong>Conclusions: </strong>Several bone formation and resorption markers were negatively correlated with the maxillary and mandibular HUs. The BTM measurement was effective for preoperative examination for implant treatment.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":" ","pages":"357-363"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142020058","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":"Standard Versus Step Burs for Implant Site Preparation: A Randomized Controlled Clinical Trial.","authors":"Stefano Corbella, Silvio Taschieri","doi":"10.11607/jomi.11037","DOIUrl":"10.11607/jomi.11037","url":null,"abstract":"<p><strong>Purpose: </strong>To explore the comparative efficacy of two different drilling protocols that use burs with different designs to help prepare implant sites through the evaluation of radiographic, clinical, and patient-reported outcomes.</p><p><strong>Materials and methods: </strong>The present randomized controlled clinical trial, with an allocation ratio of 1:1, was carried out at the University of Milan and at the IRCCS Ospedale Galeazzi Sant'Ambrogio Hospital in Milan by two experienced surgeons and researchers (S.C. and S.T.). In the control group, surgeons followed a protocol with standard straight burs, and in the test group they used step burs. In both groups the patients received the same type of implants and prostheses. The primary outcome was marginal bone resorption 1 year after prosthetic placement.</p><p><strong>Results: </strong>The study included and treated a total of 60 patients (86 implants). At the 1-year follow-up, 54 patients (74 implants) were screened, and 50 patients were screened at the 2-year follow-up (69 implants). This study showed no evidence of a difference in bone resorption, which increased significantly over time, between the control and test groups.</p><p><strong>Conclusions: </strong>Bot clinical parameters and patient-centered outcomes revealed no differences between the two protocols for implant site preparation with two different drill shapes.</p>","PeriodicalId":94230,"journal":{"name":"The International journal of oral & maxillofacial implants","volume":"0 0","pages":"339-347"},"PeriodicalIF":0.0,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141474227","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}