Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry最新文献

{"title":"Clinical case report: Immediate full-arch implant placement and loading technique using a fiducial-free dynamic navigation workflow.","authors":"Mamdouh Kachlan, Behzad Mostoufi, Ahmad Majeed-Saidan, Sindhu Kanikicharla, Radi Masri","doi":"10.1111/jopr.70010","DOIUrl":"https://doi.org/10.1111/jopr.70010","url":null,"abstract":"<p><p>Dynamic navigation guided surgery requires the use of fiducial markers on teeth to plan for dental implant placement. This poses a significant challenge when all the teeth need to be extracted and bone reduction is needed. This report describes a novel technique to overcome this limitation and perform bone reduction accurately using dynamic navigation. A 61-year-old patient presented with non-restorable maxillary teeth with root caries and generalized periodontitis grade IV stage B. The patient had a reverse smile line with supra-eruption of maxillary right and left premolars. The patient was treatment planned for the extraction of all maxillary teeth, alveoloplasty, and placement of six implants in the first molar, first premolar, and lateral incisor sites for a fixed complete denture prosthesis. A prosthetically-driven guide for a dynamic navigation system was used to place dental implants, perform alveoloplasty, and immediately load the provisional prosthesis. The guide marked planned alveoloplasty level and precluded the use of an X-Clip, overcoming limitations of using dynamic navigation in full arch implant treatments.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144734713","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 different implant abutment materials on optical properties of translucent monolithic zirconia crowns.","authors":"Nisha Patel, Geoffrey A Thompson, Carl Drago, Mohamed Elshewy, David Berzins, Hongseok An","doi":"10.1111/jopr.70005","DOIUrl":"https://doi.org/10.1111/jopr.70005","url":null,"abstract":"<p><strong>Purpose: </strong>The use of translucent monolithic zirconia crowns in implant dentistry raises concerns about the underlying abutment color affecting esthetic outcomes. While abutment effects are documented for traditional ceramics, data are limited for modern monolithic zirconia. The purpose of this investigation is to evaluate how abutment material and zirconia brand influence the final color of translucent monolithic zirconia crowns.</p><p><strong>Materials and methods: </strong>Eighty monolithic zirconia crowns (four brands; n = 20 each) were fabricated in shade A2 and cemented onto five abutment types: titanium (Ti), gold-hued Ti, pink-hued Ti, zirconia, and a natural dentin-shaded control. Crowns were placed on abutments using opaque try-in paste, and color was measured using a spectrophotometer. ∆E00 values were calculated and analyzed using two-way ANOVA and Tukey post hoc testing (α = 0.05).</p><p><strong>Results: </strong>Both abutment material and zirconia brand significantly influenced ∆E00 values (p < 0.001), with a significant interaction effect between the two variables. Zirconia abutments yielded the lowest color difference (∆E00 = 0.77), below the perceptibility threshold. Katana Zirconia HT exhibited the least color change across abutments. All metallic abutments produced ∆E00 values categorized as moderately unacceptable, with the highest values observed for pink-hued titanium.</p><p><strong>Conclusions: </strong>Color outcomes of translucent monolithic zirconia crowns are strongly influenced by the abutment material and zirconia brand. Zirconia abutments help minimize color deviation, while metallic abutments-especially pink Ti-may produce clinically perceptible shade changes.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144734714","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":"Acrylic resin versus metal palatal base in complete dentures: A randomized crossover clinical trial of patient-reported outcomes.","authors":"Motasum Abu-Awwad, Laila Hailkal, Mohammad Bustani, Nadia Ereifej, Dima Abu Baker, Mahmoud K Al-Omiri","doi":"10.1111/jopr.70001","DOIUrl":"https://doi.org/10.1111/jopr.70001","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the effects of acrylic resin and metal palatal bases in complete dentures on patient satisfaction and quality of life.</p><p><strong>Materials and methods: </strong>This randomized, two-period crossover clinical trial involved 30 edentulous participants. Each received complete dentures with either an acrylic resin or a metal palatal base, followed by the alternative after 2 months. Participant satisfaction was assessed using a visual analog scale, and quality of life was evaluated via the Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT). The Wilcoxon signed-rank test and effect size (ES) analyze satisfaction ratings and OHIP-EDENT scores. Regression analysis was conducted to identify predictors of general satisfaction and OHIP-EDENT scores. Fisher's exact test assessed the association between denture wearing experience and material preference.</p><p><strong>Results: </strong>Of the 30 participants, 25 completed the study (48% first-time wearers, 52% experienced wearers). No statistically significant differences were found for general satisfaction (p = 0.386), eating (p = 0.292), taste (p = 0.775), speech (p = 0.497), phonetics (p = 0.570), cleaning (p = 0.905), palate design (p = 0.773), or OHIP-EDENT score (p = 0.381). Phonetics demonstrated a moderate ES (r = 0.38) in favor of metal bases. Other domains had small ES (r = 0.02-0.21). Metal bases were associated with increased embarrassment (p = 0.034, r = 0.42). Regression analyses revealed no significant predictors of general satisfaction (p = 0.397) or OHIP-EDENT scores (p = 0.685). First-time wearers tended to prefer acrylic resin bases; experienced wearers were evenly divided (p = 0.097).</p><p><strong>Conclusion: </strong>Both acrylic resin and metal palatal bases yielded comparable satisfaction and quality of life outcomes. However, metal bases caused more embarrassment. Material preference appeared to vary based on prior denture-wearing experience.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144734699","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":"The effect of occlusal morphology of implant-supported prosthesis, support configuration, and build angulation on the number of isolated islands in a 3D printing slicing software.","authors":"Reza Edalati, Mohamed Aref, Isaias Abrego, Fatemeh Ahmadi, Amir H Nejat","doi":"10.1111/jopr.70004","DOIUrl":"https://doi.org/10.1111/jopr.70004","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the impact of posterior occlusal morphology, build angulation, and support configuration on the occurrence of isolated islands in a three-dimensional (3D) printing slicing software when printing a full arch implant-supported prosthesis.</p><p><strong>Materials and methods: </strong>Three maxillary implant-supported full-arch prostheses were designed with similar intaglio and anterior teeth and different posterior morphology based on cusp angulations, including shallow (10°), medium (20°), and steep (33°). Each digital file was transferred to slicing software and nested in different angulations (0°, 15°, 30°, 45°, and 90°), and supports were created using different configurations (thin, standard, and thick). The sliced file from each configuration was evaluated for the presence of isolated islands of print where the printed material was left unsupported. The effect of independent variables and number of isolated islands, time to print, number of layers, and volume of the resin to print were analyzed with a three-way ANOVA test with a significance level set at 5%.</p><p><strong>Results: </strong>The mean number of isolated islands (minimum 0 and maximum 11.9) in the slicing software was significantly affected by all three investigated variables (p < 0.05). Steep occlusal morphology reduced the chance of developing islands after slicing. The standard and thick support configuration reduced the number of islands when compared with the thin support configuration. In terms of build angulation, 0° resulted in the highest number of islands, and 90° build angulation resulted in no islands. Increasing the thickness of support and steeper cusp angulation significantly increased the amount of resin required to print (p < 0.05). Increasing the build angulation significantly increased the time to print, number of layers, and amount of resin to print (p < 0.05).</p><p><strong>Conclusions: </strong>Slicing software can produce isolated unsupported areas that have the potential to cause print failure of a full arch implant-supported prosthesis. Based on the present findings, shallower posterior occlusal anatomy, thinner supports, and 0° build angulation increased the chance of developing isolated islands in a slicing software.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718923","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":"A novel CAD-CAM protocol for monolithic zirconia post and core fabrication: A digital clinical report.","authors":"Majed S Altoman, Manar K Alamri, Mohammed A Alfaifi, Hatem Alqarni, Mathew T Kattadiyil","doi":"10.1111/jopr.70007","DOIUrl":"https://doi.org/10.1111/jopr.70007","url":null,"abstract":"<p><p>This digital clinical report presents a novel CAD-CAM workflow for fabricating a customized monolithic zirconia post-and-core restoration. A 26-year-old female patient required prosthetic rehabilitation of the maxillary left first and second premolars, as well as an implant screw-retained crown (ISRC) for the maxillary left first molar. After post space preparation, intraoral scans (IOS) were obtained both with and without a prefabricated fiber post in place. The fiber post was also scanned separately using a desktop scanner. These datasets were superimposed using digital software to design a precise monolithic zirconia post-and-core, which was then milled using CAD-CAM technology. The structure was cemented with self-adhesive resin cement, and a lithium disilicate crown was digitally designed and fabricated. This digital approach minimized the errors associated with conventional techniques, improved fit and adaptation, and enhanced clinical efficiency. The definitive restoration achieved excellent aesthetic and functional outcomes, fulfilling the patient's expectations without complications. This report highlights the value of digital workflows in achieving precision and predictability in post-and-core restorations.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144718922","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":"In vitro study on the effect of Halloysite Nanotubes (HNTs) on flexural properties of 3D-printed dental resins after thermal aging.","authors":"Mohammed M Gad, Ali Alkhathami, Shahad T Alameer, Turki Alshehri, Mohammed Alotaibi, Soban Q Khan, Sultan Akhtar, Yousif A Al-Dulaijan","doi":"10.1111/jopr.70009","DOIUrl":"https://doi.org/10.1111/jopr.70009","url":null,"abstract":"<p><strong>Purpose: </strong>The purpose is to evaluate the effect of adding Halloysite Nanotubes (HNTs) on the flexural strength (FS), elastic modulus, and hardness of 3D-printed denture base resins (DBRs).</p><p><strong>Materials and methods: </strong>A total of 160 bar- and disk-shaped specimens were fabricated from 3D-printed resins (DentaBASE-ASIGA and Denture 3D+-NextDent), incorporating three concentrations of HNTs (0.3%-, 0.6%-, and 0.9%) in addition to one control group without HNTs addition. Specimens were designed to the required dimensions and printed according to the manufacturer's recommendations. The printed specimens were finished, polished, and then subjected to thermal cycling (5000 cycles). Flexural properties were measured using the 3-point bending fixture with a universal testing machine, and a Vickers hardness tester was used to assess the hardness. A scanning electron microscope (SEM) was used for fracture surface analysis and HNTs distribution. ANOVA and post hoc Tukey's test were used for data analysis (α = 0.05).</p><p><strong>Results: </strong>Adding HNTs to 3D-printed DBRs increased FS compared to the control group (p < 0.001). Between HNTs-modified groups, 0.6% and 0.9% groups showed a significant increase in FS compared with the 0.3% group, while no significant difference was observed between 0.6% and 0.9% HNTs (p > 0.05). The elastic modulus significantly increased by adding HNTs compared to the control group (p < 0.001), while no significant differences in the elastic modulus were observed between HNTs-modified groups (p > 0.05). SEM analysis revealed a ductile fracture mode for HNTs-modified groups. Compared to the control group, the hardness of 3D-printed resin increased with HNTs addition (p < 0.001). Up to 0.6% HNTs, a significant increase in hardness was reported, while 0.9% significantly decreased the hardness compared with 0.6% HNTs (p < 0.001). No significant differences were found between materials per concentration (p > 0.05) when comparing materials.</p><p><strong>Conclusion: </strong>The FS, elastic modulus, and hardness of 3D-printed resins increased with the addition of HNTs. Regarding HNTs concentrations, 0.3% and 0.6% positively impacted the tested properties and could be recommended as an alternative to pure 3D-printed resins after testing other properties and evaluating the performance of HNTs-3D-printed nanocomposites.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144709671","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":"Impact of monomer contamination of isopropanol during post-rinsing on the accuracy of dental models fabricated by vat photopolymerization.","authors":"Florian Flierl, Benedikt C Spies, Severin Rothlauf, Kirstin Vach, Ralf J Kohal, Jörg Lüchtenborg","doi":"10.1111/jopr.70011","DOIUrl":"https://doi.org/10.1111/jopr.70011","url":null,"abstract":"<p><strong>Purpose: </strong>The aim of this study was to investigate the impact of an increasing level of monomer contamination of isopropanol (isopropyl alcohol [IPA]) during post-rinsing on the dimensional stability of test samples produced by vat photopolymerization. The effect of resin deposits due to insufficient post-rinsing on the accuracy (volume, mean, and maximum deviation) of additive manufacturing workflows was investigated, which has received limited attention in studies on accuracy.</p><p><strong>Materials and methods: </strong>Forty test specimens (four groups, n = 10) were produced from a commonly used resin for dental model fabrication and underwent post-rinsing in IPA with different levels of monomer contamination (0, 10, 20, and 30 wt%). The dimensional stability was assessed by comparing the optical scan of the produced test specimens with the original digital design. Both the volume of the deposited resin and the effect of different model shapes (inner edges, smooth surfaces, and outer edges) on deposition were investigated. Statistical evaluation was performed using the Kruskal-Wallis test and Dunn's test for pairwise comparisons with Holm correction. To simulate clinical conditions, 20 dental models (four groups, n = 5) were produced, post-processed, and examined using a scanning method.</p><p><strong>Results: </strong>No significant deviations in specimen dimensions occurred when the monomer contamination was 0%-10%. In the range of 10%-20% contamination, a few significant deviations occurred in the area of sharp inner edges, \"inside structures\" and small structures (diameter <1000 µm). At contamination levels of 30%, significant deviations were observed eventually in all measured areas.</p><p><strong>Conclusions: </strong>This study showed that, contrary to the manufacturer's specifications, the IPA should only be replaced during post-rinsing if the monomer contamination of the rinsing solution is >20%. At contamination levels of 10%-20%, post-rinsing of components with large smooth surfaces without sharp edges (e.g., custom trays) is possible without significant deformation. Only for components with very small, sharp-edged, or inverted structures is it advisable to replace the IPA from a contamination level of 10%.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144709670","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":"Trueness of artificial intelligence-based, manual, and global thresholding segmentation protocols for human mandibles.","authors":"Andrea Kristine T Hernandez, Vinicius Dutra, Tien-Min G Chu, Chao-Chieh Yang, Wei-Shao Lin","doi":"10.1111/jopr.70008","DOIUrl":"https://doi.org/10.1111/jopr.70008","url":null,"abstract":"<p><strong>Purpose: </strong>To compare the trueness of artificial intelligence (AI)-based, manual, and global segmentation protocols by superimposing the resulting segmented 3D models onto reference gold standard surface scan models.</p><p><strong>Materials and methods: </strong>Twelve dry human mandibles were used. A cone beam computed tomography (CBCT) scanner was used to scan the mandibles, and the acquired digital imaging and communications in medicine (DICOM) files were segmented using three protocols: global thresholding, manual, and AI-based segmentation (Diagnocat; Diagnocat, San Francisco, CA). The segmented files were exported as study 3D models. A structured light surface scanner (GoSCAN Spark; Creaform 3D, Levis, Canada) was used to scan all mandibles, and the resulting reference 3D models were exported. The study 3D models were compared with the respective reference 3D models by using a mesh comparison software (Geomagic Design X; 3D Systems Inc, Rock Hill, SC). Root mean square (RMS) error values were recorded to measure the magnitude of deviation (trueness), and color maps were obtained to visualize the differences. Comparisons of the trueness of three segmentation methods for differences in RMS were made using repeated measures analysis of variance (ANOVA). A two-sided 5% significance level was used for all tests in the software program.</p><p><strong>Results: </strong>AI-based segmentations had significantly higher RMS values than manual segmentations for the entire mandible (p < 0.001), alveolar process (p < 0.001), and body of the mandible (p < 0.001). AI-based segmentations had significantly lower RMS values than manual segmentations for the condyles (p = 0.018) and ramus (p = 0.013). No significant differences were found between the AI-based and manual segmentations for the coronoid process (p = 0.275), symphysis (p = 0.346), and angle of the mandible (p = 0.344). Global thresholding had significantly higher RMS values than manual segmentations for the alveolus (p < 0.001), angle of the mandible (p < 0.001), body of the mandible (p < 0.001), condyles (p < 0.001), coronoid (p = 0.002), entire mandible (p < 0.001), ramus (p < 0.001), and symphysis (p < 0.001). Global thresholding had significantly higher RMS values than AI-based segmentation for the alveolar process (p = 0.002), angle of the mandible (p < 0.001), body of the mandible (p < 0.001), condyles (p < 0.001), coronoid (p = 0.017), mandible (p < 0.001), ramus (p < 0.001), and symphysis (p < 0.001).</p><p><strong>Conclusion: </strong>AI-based segmentations produced lower RMS values, indicating truer 3D models, compared to global thresholding, and showed no significant differences in some areas compared to manual segmentation. Thus, AI-based segmentation offers a level of segmentation trueness acceptable for use as an alternative to manual or global thresholding segmentation protocols.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144683532","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 reconstruction of a provisional obturator using a mirroring technique in a patient with limited mouth opening.","authors":"Min-Ju Ji, Jung-Jin Lee, Jae-Min Seo, Yeon-Hee Park","doi":"10.1111/jopr.70006","DOIUrl":"https://doi.org/10.1111/jopr.70006","url":null,"abstract":"<p><p>Capturing impressions for maxillary defect patients with trismus is challenging due to limited mouth opening and defect complexity. This study introduces an innovative digital technique that highlights virtual reconstruction through the integration of intraoral scanning and a mirroring approach. Using the intact maxillary arch as a reference, the defect area is digitally reconstructed to design a provisional obturator with a streamlined workflow. By eliminating the need for extensive laboratory procedures, this method significantly enhances the efficiency of prosthetic fabrication and simplifies the overall impression-taking process.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144683533","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":"Comparative analysis of the bond strength of digital denture base materials.","authors":"Anhar Basunbul, Shatha Alshali, Ghadeer Basunbul, Yuwei Fan, Russell Giordano","doi":"10.1111/jopr.70000","DOIUrl":"https://doi.org/10.1111/jopr.70000","url":null,"abstract":"<p><strong>Purpose: </strong>Evaluate the bond strength of commercial digital denture base materials to denture teeth and characterize composite resins.</p><p><strong>Materials and methods: </strong>Twenty-four square-shaped specimens were prepared from Lucitone 199 denture base disc (Dentsply Sirona), AvaDent denture base puck (AvaDent), KeyMill denture base disc (Keystone), Lucitone digital print denture base resin (Dentsply Sirona), Formlabs denture base resin (Formlabs), and Dentca denture base resin II (Dentca) to test the bond strength to manufacturer-recommended denture teeth and characterize composite resin. Bond strength was determined using the shear bond test. Data were analyzed using one-way ANOVA followed by Tukey's HSD test (α = 0.05). Failure mode for all debonded specimens was analyzed using a stereomicroscope.</p><p><strong>Results: </strong>The milled bases exhibited better bonding to manufacturer-recommended denture teeth but showed a low bond strength to the characterizing composite resin. In contrast, the printed bases showed a low bond strength to the manufacturer-recommended denture teeth material but displayed a better bond strength to the characterizing composite resin. The difference was statistically significant (p < 0.05).</p><p><strong>Conclusion: </strong>This study demonstrates that the bond strength of milled denture bases to the manufacturer-recommended denture teeth is higher compared to that of printed denture bases, except for Lucitone 3D, which exhibited significantly higher bond strength when using Digital Fuse techniques. Future research should investigate surface modification strategies to improve long-term durability of bonds between denture bases and both denture teeth, and characterize composite resins as achieving reliable bonding to digital denture bases remains a clinical concern.</p>","PeriodicalId":49152,"journal":{"name":"Journal of Prosthodontics-Implant Esthetic and Reconstructive Dentistry","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144683531","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}