Journal of dentistry最新文献

{"title":"Digitally Guided Root Membrane Preparation Using a Dedicated Apex Guide for Immediate Implant Placement: A Retrospective Case Series.","authors":"Sam Omar, Francesco Guido Mangano","doi":"10.1016/j.jdent.2026.107113","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107113","url":null,"abstract":"<p><strong>Objective: </strong>To assess the clinical feasibility and 1-year outcomes of a static computer-assisted workflow using a dedicated Apex Guide for root membrane (RM) preparation and immediate implant placement.</p><p><strong>Methods: </strong>Fifteen consecutive patients with nine anterior and six posterior single-tooth sites were included. Cone-beam computed tomography and intraoral scans were registered for planning. A tooth-supported Apex Guide guided a 2.0-mm drill along a root-oriented trajectory; implant placement used a separate prosthetically driven guide. Feasibility, complications, survival, Pink Esthetic Score (PES), probing depth (PD), bleeding on probing (BOP), recession and peri-implant marginal bone level (PIMBL) were assessed.</p><p><strong>Results: </strong>Guided access and RM preparation were completed in all sites without intraoperative RM or facial bone damage. One RM became mobile and required removal; another developed internal exposure requiring reduction. RM retention was 93.3% (14/15), and implant and prosthetic survival were 100%. Between 6 months and 1 year, PES (12.13 ± 0.74 vs 12.20 ± 0.77; P = 0.317), PD (2.22 ± 0.15 vs 2.21 ± 0.10 mm; P = 0.655), BOP (3.34 ± 6.91% vs 2.23 ± 5.88%; P = 0.317) and PIMBL (0.280 ± 0.039 vs 0.281 ± 0.035 mm; P = 0.387) showed no significant changes. One screw loosening reduced prosthetic success to 93.3%.</p><p><strong>Conclusions: </strong>The Apex Guide workflow was clinically feasible in this small series. RM-related complications occurred despite complete implant survival; comparative accuracy and long-term safety remain unestablished.</p><p><strong>Clinical relevance: </strong>Static guidance may assist apical access during RM preparation while allowing independent, prosthetically driven implant placement.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107113"},"PeriodicalIF":5.8,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149207221","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":"OCT for Evaluation of a Universal Adhesive in a Three-Year Clinical Trial.","authors":"Rainer Haak, Matthias Häfer, Ellen Schulz-Kornas, Tobias Meißner, Hartmut Schneider","doi":"10.1016/j.jdent.2026.107106","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107106","url":null,"abstract":"<p><strong>Objectives: </strong>In parallel with the 36-month clinical evaluation of a universal adhesive, tooth-composite bond failure was assessed by tomography.</p><p><strong>Methods: </strong>In 55 patients, three non-carious cervical lesions (NCCLs) each were restored with Filtek^TM Supreme XTE (3M) using the universal adhesive Scotchbond™ Universal Adhesive (SBU, 3M) in the self-etch (SE) or selective enamel-etch (SEE) mode or by OptiBond™ FL (OFL, Kerr, reference, randomization). Immediately after restoration placement (T0) and in parallel with the clinical assessments (FDI criteria) at 6, 12, 24, and 36 months (M), the restorations were imaged by optical coherence tomography (OCT) to quantify interfacial adhesive defects (ADs; 14 days, clinical only). Cumulative failure rates (CFRs) and means of ADs were statistically analyzed.</p><p><strong>Results: </strong>From six to 36M, CFRs were lower in the SBU groups vs. OFL (p_i ≤ 0.004). Compared to SBU-SE or OFL, SBU-SEE resulted in reduced marginal staining (≥ 12M; p_i: 0.002 - 0.727) and increased marginal adaptation (≥ 12M; p_i: 0.001 - 0.629). Increased ADs appeared on the enamel with SBU-SE vs. SBU-SEE and OFL (T0 - 36M; p_i ≤ 0.001/0.048) and with OFL vs. SBU-SEE (≥ 6M; p_i ≤ 0.025). At dentin/cement less defects appeared using SBU-SEE vs. SBU-SE (≥ 6M) or OFL (≥ T0, p_i ≤ 0.0115), and fewer in the SBU-SE vs. OFL group (≥ T0, p_i ≤ 0.001). Before restoration loss, the adhesive defects on the dentin/cement were increased (p_i ≤ 0.05).</p><p><strong>Conclusions: </strong>Clinical assessments and OCT-based analyses were consistent. In terms of bond failure, however, the groups already differed upon restoration placement, with reproducible substrate-specific differences becoming apparent.</p><p><strong>Clinical significance: </strong>The universal adhesive Scotchbond™ Universal Adhesive in SEE mode performed most favorably. Interfacial adhesive defects detectable by OCT reliably predict the performance of a restoration system. #DRKS00011084, http://www.drks.de/DRKS00011084, 30.09.2016.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107106"},"PeriodicalIF":5.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149194487","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":"Comparison of X-ray Microtomography with Transverse Microradiography for Assessment of Enamel Remineralisation.","authors":"James Rohan Fernando, Peiyan Shen, Yi Yuan, Coralie Reynolds, Eric Charles Reynolds","doi":"10.1016/j.jdent.2026.107111","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107111","url":null,"abstract":"<p><strong>Objectives: </strong>Transverse microradiography (TMR) remains the reference standard for assessment of enamel remineralisation, however it is destructive to the sample and precludes longitudinal analysis. X-ray microtomography (XMT) offers a non-destructive alternative, though its accuracy for remineralisation analysis relative to TMR has not been established. The objective of this study was to compare conventional Micro-CT (Cµ-CT), synchrotron radiation-computed tomography (SR-CT) and TMR for assessment of enamel subsurface lesion remineralisation by casein phosphopeptide-amorphous calcium fluoride phosphate (CPP-ACFP) in vitro.</p><p><strong>Methods: </strong>Artificial subsurface enamel lesions created in extracted human third molars were divided into experimental and control halves; the experimental halves were exposed to CPP-ACFP for eight days. Measurement of percent remineralisation (%R) was calculated by scanning samples using Cµ-CT and SR-CT, and subsequently processing for TMR. Repeated measures ANOVA with Tukey HSD post hoc comparisons and Bland-Altman analysis were conducted to compare measurements.</p><p><strong>Results: </strong>Mean %R as measured by Cµ-CT (20.77 ± 7.12%) and SR-CT (20.55 ± 6.27%) were not significantly different but were both significantly lower than %R measured by TMR (49.29 ± 3.23%; p<0.00001). Significant differences between methods were observed for ΔZr (p<0.001) and ΔZd (p<0.02). Both XMT modalities were affected by imaging artefacts which compromised assessment of the enamel surface zone.</p><p><strong>Conclusions: </strong>Both Cµ-CT and SR-CT underestimated enamel remineralisation relative to TMR though were equivalent in diagnostic value. TMR remains the more sensitive method for ex vivo remineralisation analysis, particularly for accurate measurement of the surface zone. XMT is more appropriate for non-destructive or longitudinal measurement of tooth mineral.</p><p><strong>Clinical significance: </strong>The clinical adoption of new remineralisation technologies is often based on ex vivo data using X-ray based methodologies. In this study, X-ray microtomography substantially underestimated enamel remineralisation relative to transverse microradiography. This indicates that use of X-ray microtomography may lead to underreporting of the efficacy of remineralising agents when used as the primary outcome measure. Transverse microradiography remains the more sensitive and accurate reference standard for ex vivo enamel remineralisation analysis.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107111"},"PeriodicalIF":5.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149194525","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 printing orientation, material-printer-workflow system, and glazing on the surface roughness and color stability of 3D-printed resins for permanent crowns.","authors":"Raiwint Khunwisetkul, Dusit Nantanapiboon, Soranun Chantarangsu, Atthasit Kanwiwatthanakun, Phasawat Chaiwutthinan, Murali Srinivasan, Wisarut Prawatvatchara","doi":"10.1016/j.jdent.2026.107115","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107115","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the effects of printing orientation, material-printer-workflow system, and glazing on the surface roughness and color stability of permanent 3D-printed crown resins.</p><p><strong>Materials and methods: </strong>A total of 180 specimens were fabricated using three material-printer-workflow systems (VS, VarseoSmile Crown Plus; SA, Saremco Print Crowntec; CC, Ceramic Crown, SprintRay) with three printing orientations (0°, 45°, and 90°), and two surface conditions (glazed and non-glazed). Specimens were printed, finished, polished, treated (glazed/non-glazed), and subjected to 300 h of artificial accelerated aging. Surface roughness and color stability were measured by atomic force microscopy and spectrophotometry, respectively. Statistical analyses included ANCOVA, ANOVA, and post hoc Bonferroni tests (α = 0.05).</p><p><strong>Results: </strong>Before aging, surface roughness differed among the non-glazed systems at all orientations (all P < 0.05), whereas printing orientation affected only non-glazed SA (P = 0.024). Glazing reduced surface roughness and color change in all material-printer-workflow systems. After aging, printing orientation affected surface roughness in non-glazed SA and CC (both P < 0.001) and glazed VS (P < 0.001), but not color change (all P ≥ 0.05). CC consistently exhibited the highest post-aging surface roughness.</p><p><strong>Conclusions: </strong>Roughness differed among material-printer-workflow systems, with orientation effects in selected groups. Glazing improved aging-related surface and color stability under the tested conditions. The highest post-aging mean Ra remained below 0.2 µm, but glazed mean ΔE₀₀ values (2.03-2.38) exceeded the acceptability threshold of 1.8.</p><p><strong>Clinical significance: </strong>The findings inform the selection of material-printer-workflow systems and glazing protocols for 3D-printed restorations. Glazing improved aging-related surface and color stability under the tested laboratory conditions. Post-aging mean Ra remained below the cited 0.2-µm plaque-retention threshold, but glazed mean ΔE₀₀ values were above the acceptability threshold of 1.8.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107115"},"PeriodicalIF":5.8,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149194563","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":"Effect of surface treatments on the flexural properties of repaired conventional and alternative denture base materials.","authors":"Spun Lenglerdphol, Kamolporn Wattanasirmkit, Atikom Surintanasarn, Taksid Charasseangpaisarn","doi":"10.1016/j.jdent.2026.107109","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107109","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Objectives: &lt;/strong&gt;This study evaluated the effect of different surface treatments on the flexural properties of five base materials, one conventional and four alternative materials, repaired with auto-polymerized acrylic resin.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;Forty bar-shaped specimens of heat-polymerized polymethyl methacrylate (HCC), polymer blend between polymethyl methacrylate and polylactic acid (PBI), photopolymer resin (APB), polylactic acid (PLF) and polyethylene terephthalate glycol filament (PTF) were fabricated and randomly divided into four groups (n=10) as intact specimens (C) and three repaired specimens; no surface treatment (N), 180 seconds MMA application (M) and single application of DCM (D). The flexural properties were tested with a universal testing machine. Data were analyzed using two-way ANOVA with a heteroscedasticity-consistent (HC3) sensitivity analysis. Simple main effects of surface treatment within each material were tested using Welch's ANOVA and the Games-Howell post hoc test (p-values multiplied by 5 for the five materials, α = 0.05). Three square-shaped specimens of each material were fabricated and randomly divided into untreated (U), MMA-treated (M), and DCM-treated (D) surface conditions (n=1). The surface morphology was investigated as representative observations with a scanning electron microscope (SEM).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The intact specimens showed significantly higher flexural strength than repaired specimens in all materials. The M treatment significantly improved flexural strength of HCC, PLF and PTF. The D treatment significantly improved flexural strength of PBI, PLF and PTF, whereas neither M nor D treatment significantly improved flexural strength of APB. Both treatments exhibited qualitative differences in surface morphology: M treatment in HCC, PBI, PLF and PTF, and D treatment in all materials. Flexural modulus significantly decreased after repair in HCC, APB, and PLF. For PBI, flexural modulus significantly decreased only with M treatment, while PTF showed no significant differences among groups.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusion: &lt;/strong&gt;Within the limitations of this study, the effectiveness of chemical surface treatment for denture base repair was material-dependent. Both MMA and DCM improved flexural strength in specific materials without significant differences between them, and the clinical suitability of DCM cannot be established from this study.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Clinical significance: &lt;/strong&gt;PBI and APB show potential as alternative denture base materials based on their intact flexural properties. When repair is needed, the choice of chemical conditioning agent should balance mechanical performance against occupational safety. DCM showed numerically higher flexural strength than MMA in some materials, but the differences were not statistically significant. Because DCM carries greater handling and toxicological concerns, its suitability for clinical repair cannot be esta","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107109"},"PeriodicalIF":5.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182355","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":"Corrigendum to \"The use of quality-of-life questionnaires in the assessment and management of dentin hypersensitivity: A systematic literature review\" [Journal of Dentistry 173 (2026) 106805].","authors":"Victoire Queneau, Sophie Doméjean","doi":"10.1016/j.jdent.2026.107099","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107099","url":null,"abstract":"","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107099"},"PeriodicalIF":5.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182323","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":"PrepNet: A Multi-Task Geometric Deep Learning Framework for Automatic Detection and Numbering of Prepared Tooth in 3D Dental Scan Models.","authors":"Su Yang, Ji Yong Han, Nowon Kwon, Jun Gi Lee, Sang-Jeong Lee, Sungmoon Jeong, Sangwook Kim, Jun-Min Kim","doi":"10.1016/j.jdent.2026.107108","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107108","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to develop and evaluate PrepNet, a multi-task geometric deep learning framework, for automatic detection and numbering of the prepared tooth in 3D dental scan models (DSMs).</p><p><strong>Methods: </strong>In this study, we propose PrepNet, a multi-task geometric deep learning framework designed to simultaneously predict the target ROI centroid, estimate the ROI size, and classify the tooth number from 3D DSMs. PrepNet integrates local graph feature extraction using DGCNN to capture surface variations with global contextual modeling via a Point Cloud Transformer to encode long-range dental structures.</p><p><strong>Results: </strong>PrepNet achieved the lowest mean radial error for ROI centroid detection (1.498± 0.884 mm) and the highest successful detection rate at 2.0 mm (80.29%) compared with the baseline models. For tooth numbering, PrepNet showed the highest classification accuracy of 0.836. For ROI size estimation, PrepNet achieved the lowest maximum deviation of 2.420 mm, with a mean absolute error (0.620 ± 0.480 mm) comparable to the best-performing baseline.</p><p><strong>Conclusions: </strong>PrepNet demonstrated the feasibility of multi-task geometric deep learning for the automatic detection and numbering of the single prepared tooth in 3D DSMs.</p><p><strong>Clinical significance: </strong>This approach may improve the efficiency of single-crown CAD/CAM design workflows by reducing manual target-tooth selection and ROI definition prior to dental crown design.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107108"},"PeriodicalIF":5.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181264","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":"Acid origin modulates the protective effect of an experimental anti-erosive gel against enamel erosion.","authors":"Thamires Beatriz da Silva Silveira Cardoso, Milena Ruling Estenico, Carlos Rocha Gomes Torres, Alessandra Bühler Borges, Mariane Cintra Mailart, Daniele Mara da Silva Ávila","doi":"10.1016/j.jdent.2026.107105","DOIUrl":"10.1016/j.jdent.2026.107105","url":null,"abstract":"<p><strong>Objectives: </strong>To evaluate the effect of experimental fluoride gels containing the bioadhesive polymer Carbopol 980, alone or combined with stannous ions, on enamel mineral release and to determine whether their protective effects differ according to the origin of the erosive acid.</p><p><strong>Methods: </strong>Bovine enamel specimens were subjected to erosive cycling with 0.03% hydrochloric acid or 1% citric acid (pH 2.3 for both). After the initial erosive challenge, specimens were treated with acidulated phosphate fluoride - APF (12300 ppm F, pH 5.2), Carbopol 980 - C980 (2 g/100mL, pH 5.0), NaF + C980 (7500 ppm F + 2 g/100mL, pH 5.5), or NaF + Sn + C980 (7500 ppm F + 15000 ppm Sn²⁺ + 2 g/100mL, pH 5.5) gels. Mineral release was quantified by calcium and phosphate release throughout the erosive cycling. Surface morphology and elemental composition were qualitatively evaluated by scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS). Data were analyzed using Kruskal-Wallis and Dwass-Steel-Critchlow-Fligner tests (α=0.05).</p><p><strong>Results: </strong>Before treatment, citric acid produced greater calcium (p=0.003) and phosphate (p < 0.001) release than hydrochloric acid. After treatment, significant differences among gels were observed for calcium loss (p < 0.001). During the 5-day cycling, treatment effects were detected only under citric acid challenge, where NaF + C980 and NaF + Sn + C980 significantly reduced calcium and phosphate loss compared with C980 alone and performed similarly to APF. Under hydrochloric acid challenge, no significant differences were found among treatments. SEM and EDS supported these findings by revealing protective surface deposits and the presence of fluoride and tin on treated enamel.</p><p><strong>Conclusions: </strong>Experimental fluoride-containing gels, with or without stannous ions, reduced enamel mineral release compared with the Carbopol 980 placebo under the citric acid challenge. However, this protective effect was not observed under hydrochloric acid, indicating that the effect of the formulations on mineral release depended on the erosive acid used. The findings highlight the importance of considering the type of erosive acid used when evaluating and comparing anti-erosive formulations.</p><p><strong>Clinical significance: </strong>Acid chemistry influences the protective effect of professional anti-erosive formulations and should be considered when developing preventive strategies for erosive tooth wear.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107105"},"PeriodicalIF":5.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149182320","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":"From static digital articulation to the dynamic (4D) digital virtual patient: An umbrella review of digital occlusal analysis and jaw-motion tracking.","authors":"Marco Farronato, Lucia Giannini, Davide Farronato, Giada di Iasio, Cinzia Maspero","doi":"10.1016/j.jdent.2026.107107","DOIUrl":"10.1016/j.jdent.2026.107107","url":null,"abstract":"<p><strong>Objectives: </strong>To synthesize review-level evidence on static digital articulation, computerized occlusal analysis, jaw-motion tracking and dynamic (4D) digital virtual patient integration, while distinguishing the specific claims each technology can support.</p><p><strong>Data: </strong>Review characteristics, technical accuracy, repeatability, validity, clinical outcomes, primary-study overlap and review-level risk of bias.</p><p><strong>Sources: </strong>PubMed/MEDLINE, Europe PMC, Crossref, OpenAlex, the Cochrane Library and Epistemonikos were searched or checked through 10 July 2026. Reference-list and citation searching supplemented database retrieval.</p><p><strong>Study selection: </strong>Thirty-four reports were included: 29 systematic reviews, four scoping reviews and one structured evidence map, representing 663 review-study occurrences. Of the 29 ROBIS-rated reviews, two were at low risk, 15 at unclear risk and 12 at high risk of bias. Static digital articulation was conditionally accurate in dentate, stable-contact and short-span settings. Contact location was more defensible than intensity, area or absolute force. Jaw tracking and digital virtual patient integration were technically feasible, but heterogeneous reference frames, small studies and sparse clinical outcomes constrained inference.</p><p><strong>Conclusions: </strong>Digital occlusion is not a single validated construct. Maxillomandibular relationship transfer, contact location, relative force/timing, movement trajectory and integrated clinical decisions require distinct validation. Technical accuracy, precision, repeatability and feasibility should not be interpreted as evidence of clinical effectiveness or patient benefit. Current systems are best used as calibrated, clinician-verified adjuncts.</p><p><strong>Clinical significance: </strong>Static digital articulation can support selected restorative workflows, whereas complex spans, edentulous arches, force interpretation, dynamic simulation and diagnostic use require independent verification. Reliable upstream registration does not establish downstream patient benefit.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107107"},"PeriodicalIF":5.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181271","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":"Fully Digital Immediate Implantation in the Esthetic Zone Using the Socket Shield Technique, a Novel Trephine Guide, and the One-Step Crown Concept.","authors":"Jakub Kwiatek, Marta Leśna, Paulina Łojewska-Pabiś, Adrianna Kubat, Ilona Różewicz, Marcin Sieradzki, Michalina Banaś","doi":"10.1016/j.jdent.2026.107103","DOIUrl":"https://doi.org/10.1016/j.jdent.2026.107103","url":null,"abstract":"<p><strong>Introduction: </strong>The socket-shield technique (SST) aims to limit post-extraction remodeling by preserving the buccal root fragment and its periodontal attachment apparatus; however, the procedure remains technique-sensitive, particularly during root preparation. This Short Communication presents a digitally guided workflow integrating guided socket-shield preparation and immediate implant placement using the same CAD/CAM surgical guide incorporating a dedicated guiding sleeve.</p><p><strong>Methods: </strong>The protocol was clinically applied in a 45-year-old female patient with a subgingival fracture of the maxillary right central incisor that precluded both conservative and prosthetic restoration. Digital planning was based on superimposed CBCT and intraoral scan datasets. Guided preparation of the buccal root fragment was followed by immediate implant placement, placement of a transmucosal CONNECT abutment, and immediate provisionalization. The provisional restoration was used to condition the peri-implant soft tissues, and its transmucosal contour was subsequently transferred unchanged to the definitive restoration without an additional intraoral scan or conventional impression.</p><p><strong>Results: </strong>Clinical and radiographic follow-up over 5 years demonstrated stable peri-implant soft tissues and bone levels without treatment-related complications.</p><p><strong>Conclusions: </strong>This single clinical application supports the feasibility of the proposed digitally guided protocol. Further prospective comparative studies are required to assess root-preparation accuracy, reproducibility, and clinical benefits.</p><p><strong>Clinical significance: </strong>The use of a dedicated guiding sleeve enables socket-shield root preparation and immediate implant placement to be integrated within a single digitally planned surgical workflow.</p>","PeriodicalId":15585,"journal":{"name":"Journal of dentistry","volume":" ","pages":"107103"},"PeriodicalIF":5.8,"publicationDate":"2026-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149181224","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}