Journal of Prosthetic Dentistry最新文献

{"title":"Response to Letter to the Editor regarding \"Evaluation of digitally fabricated occlusal devices in the treatment of temporomandibular disorders: A pilot study\".","authors":"Yunpeng Wei, Ruitong Guo, Jiali Meng, Guofeng Wu, Peihua Shi, Zhifeng He, Yingjie Yi, Sufeng Zhao","doi":"10.1016/j.prosdent.2026.05.058","DOIUrl":"10.1016/j.prosdent.2026.05.058","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"e110-e111"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148549288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to the Letter to the Editor regarding \"Prevalence of metal allergy in patients treated with intraoral prostheses and restorations: A systematic review and meta-analysis\".","authors":"Shaista Afroz, Amina Amina, Heba Ansar, Aisha Samreen, Faiz Noor Khan Yusufi, Sajjad Abdur Rahman","doi":"10.1016/j.prosdent.2026.08.005","DOIUrl":"https://doi.org/10.1016/j.prosdent.2026.08.005","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":""},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148874490","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Virtual patient-based fully digital workflow for confirming jaw relationship: A dental technique.","authors":"Yiping Gu, Shuang Jiang, Xinxing Shuai, Bo Dong, Yimeng Cai, Quan Yuan","doi":"10.1016/j.prosdent.2026.05.047","DOIUrl":"10.1016/j.prosdent.2026.05.047","url":null,"abstract":"<p><p>For patients with terminal dentition and occlusal interference resulting from long-term partial edentulism, determining a reliable jaw relationship before extraction is challenging. The present technique addresses this by introducing a digital workflow for establishing and transferring the jaw relationship. A 3-dimensionally printed custom gothic arch tracer was first used to register the optimal centric relation. Combined with facial scans, the mandible was then virtually rotated to establish the vertical dimension. On this basis, preoperative denture tooth arrangement and implant planning were completed, and the pre-operative jaw relationship was transferred postoperatively by matching bone fiducials. This technique eliminated the need for complete denture fabrication to establish jaw relationships, allowing extractions to be performed simultaneously with implant surgery, thereby reducing both cost and chairside time.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"666-671"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148283890","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the editor regarding \"Should the golden ratio be used in CAD-CAM dentistry?\"","authors":"Chenglu Ruan, Lin Wang","doi":"10.1016/j.prosdent.2026.04.017","DOIUrl":"10.1016/j.prosdent.2026.04.017","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"e83-e84"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147874640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Deviation analysis of guided fiber post removal using an assembled sleeveless guide system: A case series.","authors":"Jingqi Zhu, Siyi Mo, Yuan Li, Yaojun Zhang, Xutong Song, Jingwen Liu, Ye Cao, Xiaoxiang Xu","doi":"10.1016/j.prosdent.2026.05.051","DOIUrl":"10.1016/j.prosdent.2026.05.051","url":null,"abstract":"<p><strong>Statement of problem: </strong>Guided fiber post removal has been reported to have acceptable accuracy in in vitro studies, but its deviation and feasibility in clinical settings remain unclear.</p><p><strong>Purpose: </strong>The purpose of this case series was to quantitatively evaluate deviations in guided fiber post removal using an assembled sleeveless guide system and to explore the associations of potential factors such as jaw, side, tooth type, and post length with removal deviations.</p><p><strong>Material and methods: </strong>A total of 20 guided fiber post removal procedures in 17 patients using an assembled sleeveless guide system were included. Preoperative and postoperative cone beam computed tomography imaging data and digital dental arch scans were collected to determine the axes of the planned and actual removal paths. Angular deviation, cervical linear deviation, apical linear deviation, and excess volume loss were calculated. The associations of jaw, side, tooth type, and post length with these deviations were evaluated using separate univariate regression analyses. P values were Bonferroni-adjusted for multiple testing.</p><p><strong>Results: </strong>The angular deviation, cervical linear deviation, and apical linear deviations between actual and planned removal paths were 2.62 ±1.60 degrees, 0.31 ±0.20 mm, and 0.45 ±0.17 mm, respectively. Excess volume loss was 1.98 ±0.89 mm³. No significant association of jaw, side, tooth type, or post length with removal deviations was observed (adjusted P>.05).</p><p><strong>Conclusions: </strong>Guided fiber post removal using an assembled sleeveless guide system exhibited measurable angular and linear deviations between actual and planned removal paths. The level of these deviations in clinical practice was comparable with that in in vitro findings.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"758-768"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148295515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of ambient light color temperature and illuminance on the accuracy of 3-dimensional patient representation using different facial scanning technologies: A clinical study.","authors":"Panagiotis Ntovas, Ourania Ladia, Abdul B Barmak, Vincent Fehmer, Irena Sailer, Marta Revilla-León","doi":"10.1016/j.prosdent.2026.06.004","DOIUrl":"10.1016/j.prosdent.2026.06.004","url":null,"abstract":"<p><strong>Statement of problem: </strong>Face scans combined with intraoral scans enable the representation of 3-dimensional patient models, facilitating virtual dentofacial analysis. However, the influence of ambient light on facial scanning for virtual patient representations remain unclear.</p><p><strong>Purpose: </strong>The purpose of this clinical study was to investigate the influence of different ambient light color temperatures and illuminance of facial scanning procedures on the accuracy of virtual patient models.</p><p><strong>Material and methods: </strong>Ten participants were scanned using 2 professional (MetiSmile, Rayface 200) and 3 smartphone based (Heges, Qlone, EM3D) face scanners. For each face scanner, each participant was scanned 12 times under varying ambient light conditions. Three color temperatures (3300, 5500, 8000 K) and 3 levels of illuminance (500, 5000, 10 000 lx) were investigated. Intraoral scans were obtained, followed by facial scans. Before facial scanning, 4 landmarks were placed on the participant's face. Each facial model was superimposed onto the intraoral scan to create a virtual patient representation. Digital integration was performed following both a tooth based and an extraoral scan body based workflow. Using digital calipers, 20 linear distances between predefined facial landmarks and 5 reference points on the teeth were measured manually and served as control data. The same distances were measured virtually using a metrology software program. Statistical analysis was performed using 2-way ANOVA for pairwise comparisons (α=.05).</p><p><strong>Results: </strong>A 500 lx illuminance facial scanning method led in significantly worse trueness and precision for virtual patient representations when professional face scanners were used, compared to 5000 lx and 10 000 lx, for both tooth- and extraoral scan body-based integration. For smartphone based face scanners, 500 lx led to a significant reduction in accuracy only when extraoral scan body-based integration was performed. Deviations from 5500 K were associated with a significant decrease in trueness, with the effect varying for each face scanner and digital integration method investigated.</p><p><strong>Conclusions: </strong>To maximize accuracy of virtual patient representation, clinicians should consider the effect of ambient lighting conditions, including illuminance level and color temperature, in conjunction with the type of facial scanner and digital integration method.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"867-877"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148301812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marginal and internal fit of zirconia CAD-CAM fabricated with conventional impression and digital scanning techniques: A systematic review and meta-analysis.","authors":"Nusaiba M Al-Odinee, Afaf Al-Haddad, Abdullah F Alshammari, Ahmed A Madfa","doi":"10.1016/j.prosdent.2026.06.014","DOIUrl":"10.1016/j.prosdent.2026.06.014","url":null,"abstract":"<p><strong>Statement of problem: </strong>The accuracy of recording techniques plays a critical role in determining the marginal and internal fit of zirconia computer-aided design and computer-aided manufacture (CAD-CAM) restorations. However, the literature presents inconsistent findings regarding whether digital scanning provides better fit than conventional impressions.</p><p><strong>Purpose: </strong>The purpose of this systematic review and meta-analysis was to evaluate and compare the marginal and internal fit of zirconia CAD-CAM restorations fabricated using digital scanning techniques versus conventional recording techniques.</p><p><strong>Material and methods: </strong>An electronic search of PubMed/MEDLINE, Scopus, and Web of Science databases was conducted to identify clinical studies that directly compared digital scanning and conventional recording techniques for zirconia CAD-CAM crowns and reported marginal and/or internal fit outcomes. Randomized clinical trials (RCTs) were assessed using the Cochrane Risk of Bias 2 (RoB 2) tool, while nonrandomized studies were evaluated using the ROBINS-I tool. Meta-analyses were performed to calculate pooled mean differences for marginal and internal fit using fixed- or random-effects models based on heterogeneity (α=.05).</p><p><strong>Results: </strong>Ten clinical studies met the inclusion criteria. Four randomized clinical trials demonstrated a low risk of bias, whereas 6 nonrandomized studies showed a moderate risk of bias. Meta-analysis revealed that digital scanning techniques resulted in significantly improved marginal fit (mean difference [MD]=-15.42 µm; 95% confidence interval [CI]: -29.75 to -1.08; P=.040) and internal fit (MD=-21.22 µm; 95% CI: -36.61 to -5.83; P=.007) compared with conventional impression techniques.</p><p><strong>Conclusions: </strong>Within the limitations of this systematic review and meta-analysis, digital scanning techniques demonstrated better marginal and internal fit for zirconia CAD-CAM restorations than conventional impression techniques, while both approaches produced clinically acceptable results.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"681-690"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148368898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Response to the Letter to the Editor regarding, \"Trueness of 3D printed removable partial denture frameworks: Investigation of printing parameters and storage conditions\" by Ferreira et al.","authors":"Maria Cristina Pereira Macario Ferreira, Yolanda de Toledo Salvado da Ressurreição, Rodrigo Diniz Gomes, Bruno Costa, Roberto Chaib Stegun, Marcio Katsuyoshi Mukai","doi":"10.1016/j.prosdent.2026.04.010","DOIUrl":"10.1016/j.prosdent.2026.04.010","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"e80-e82"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147774703","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dental-dedicated magnetic resonance imaging in prosthodontics: Applications, benefits, and limitations.","authors":"Saoirse O'Toole, Jonathan Davies, Owen Addison, Zihan Ning, Kathleen Colford, Joseph Hajnal, Rubens Spin-Neto","doi":"10.1016/j.prosdent.2026.05.037","DOIUrl":"10.1016/j.prosdent.2026.05.037","url":null,"abstract":"<p><strong>Statement of problem: </strong>Dental-dedicated magnetic resonance imaging (ddMRI) represents a radiation free imaging modality that allows visualizing mineralized tissues, soft tissues, and active inflammation in the stomatognathic system. Magnetic resonance imaging (MRI) has historically played a limited role in prosthodontic care because of the expense of equipment, lack of training in capturing and assessing images, long scan times, reduced resolution of mineralized tissues compared to radiography, and artifacts from intraoral dental materials.</p><p><strong>Purpose: </strong>Recent advances in the use of low-field-strength magnets, dedicated radiofrequency coils, focused areas of interest using dedicated sequences, and artifact reduction strategies (lower field strength and deep-learning-based reconstruction algorithms) have made it possible to investigate the use of ddMRI in prosthodontic treatment planning.</p><p><strong>Material and methods: </strong>An overview of different sequences used for potential applications, benefits, and limitations of ddMRI specifically for prosthodontics for patient assessment and diagnostic treatment planning is provided. Metal artifact management is reviewed, and safety and compatibility of prosthodontic materials discussed.</p><p><strong>Results: </strong>The study outlines ddMRI pulse sequences used to aid prosthodontic treatment planning in simple and complex cases. We discuss practical integration pathways and research priorities to determine where ddMRI delivers unique value in prosthodontics rather than duplicating existing modalities.</p><p><strong>Conclusions: </strong>ddMRI in prosthodontics is an unfolding field with potential to improve diagnosis, treatment planning, and care. Further work is required to optimize integration into digital treatment planning and to further characterize dental-specific anatomical and pathological anatomy.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"858-866"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148258506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Robot-assisted dental implant surgery: A systematic review of available clinical evidence.","authors":"Ahmed Yaseen Alqutaibi, Samer Shahadah, Ayman Bakkari, Abdulaziz Alakhder, Sary Borzangy, Tahani Mohammed Binaljadm, Redhwan Saleh Al-Gabri","doi":"10.1016/j.prosdent.2026.05.035","DOIUrl":"10.1016/j.prosdent.2026.05.035","url":null,"abstract":"<p><strong>Statement of problem: </strong>Robot-assisted systems have been increasingly introduced into dental implant surgery; however, the clinical evidence supporting their accuracy, safety, and efficiency remains fragmented.</p><p><strong>Purpose: </strong>To systematically synthesize the available human clinical evidence on robotic computer-assisted implant surgery (r-CAIS), with emphasis on accuracy, efficiency, safety, and reported clinical challenges.</p><p><strong>Material and methods: </strong>This systematic review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Electronic research was performed in major biomedical databases to identify human clinical studies evaluating r-CAIS. Eligible study designs included randomized controlled trials (RCTs), nonrandomized clinical studies, cohort studies, case series, and clinical reports. Data were extracted on study characteristics, robotic systems, accuracy outcomes, operative efficiency, complications, implant survival, and follow-up duration. Owing to methodological heterogeneity, a descriptive qualitative synthesis was performed.</p><p><strong>Results: </strong>Thirty-six clinical studies published between 2020 and 2026 were included. r-CAIS consistently demonstrated high positional accuracy, with most studies reporting submillimeter platform and apical deviations and angular deviations typically below 2 degrees. Comparative studies showed better accuracy than freehand implant surgery (FHIS) and comparable or improved performance relative to static computer-assisted implant surgery (s-CAIS) and dynamic computer-assisted implant surgery (d-CAIS). Complications were infrequent and generally minor, and short-term implant survival was high, often reaching 100%. Operative time commonly increased because of registration and system setup, and follow-up durations were predominantly short-term.</p><p><strong>Conclusions: </strong>Current clinical evidence indicates that robot-assisted dental implant surgery is a safe and highly accurate approach with favorable short-term outcomes. Nevertheless, increased workflow complexity, costs, and limited long-term data constrain routine adoption. Well-designed randomized trials with standardized reporting and extended follow-up are required to define its long-term clinical value.</p>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":" ","pages":"e4-e32"},"PeriodicalIF":5.6,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148264680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}