{"title":"Influence of Various Tooth Preparation Designs on Stress Distribution in Anterior Ceramic Veneers: A Systematic Review of Finite Element Analysis Studies.","authors":"Atiyeh Feiz, Mostafa Farajzadeh, Ahmad Farajzadeh","doi":"10.1111/jerd.70261","DOIUrl":"https://doi.org/10.1111/jerd.70261","url":null,"abstract":"<p><strong>Objective: </strong>This systematic review compared the stress distribution patterns in anterior ceramic veneers with different tooth preparation designs by evaluating finite element analysis (FEA) studies, aiming to improve understanding of this biomechanical aspect related to clinical outcomes.</p><p><strong>Materials and methods: </strong>A systematic search of PubMed, Scopus, Web of Science, and Embase, along with gray literature sources was performed (January 1990-June 2025) to identify FEA studies comparing at least two preparation designs based on a modified preparation classification. Data were extracted using a customized form, and risk of bias was assessed with the ROBFEAD tool. (PROSPERO: CRD420251127762).</p><p><strong>Results: </strong>Out of 9576 studies, 34 were included. In veneers and cement layers, stress concentration was most observed at both incisal and cervical regions, whereas cervical concentration predominated in tooth structures. Higher loading angles increased stress values. Preparations without incisal reduction often showed stress values comparable to or greater than those with incisal reduction. Designs with palatal chamfer frequently demonstrated additional stress concentration in the palatal region.</p><p><strong>Conclusions: </strong>Preparation design and loading angle influence stress distribution patterns in veneer restorations; however, no single design consistently demonstrates biomechanically superior performance across all conditions. Further standardized FEA studies with clearly justified modeling assumptions are recommended.</p>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":" ","pages":""},"PeriodicalIF":4.6,"publicationDate":"2026-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148989376","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparative Radiopacity of Additively Manufactured Permanent and Temporary Resins and Conventional Resin-Based Composites","authors":"Sinem Coşkun-Albayrak, Ayşenur Öncü, Sedanur Sakalli, Esra Yildirim-Manav","doi":"10.1111/jerd.70209","DOIUrl":"10.1111/jerd.70209","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This study aimed to evaluate whether radiopacity differs among additively manufactured permanent resins, temporary resins, and conventional resin-based composites at clinically relevant thicknesses.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Eight dental materials were evaluated and categorized into four groups: additively manufactured permanent resins (VarseoSmile Crown Plus, Saremco Print CrownTec), additively manufactured temporary resins (Arma Resin TEMP Teeth, Alias Temp C&B), conventional self-cure resin-based composites (Stela Automix, Stela Capsule), and conventional light-cure resin-based composites (Gradia Posterior, G-ænial Injectable). Rectangular specimens (5 × 5 mm) were fabricated at two standardized thicknesses (1 and 2 mm) (<i>n</i> = 10). Extracted human tooth sections and a 21-step aluminum wedge were used as reference standards. Radiographic images were obtained using a digital intraoral radiography system, and radiopacity values were measured in mmAl using ImageJ software. Statistical analysis was performed using Kruskal–Wallis, Dunn–Bonferroni, and Mann–Whitney <i>U</i> tests (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Significant differences in radiopacity were observed among the tested materials (<i>p</i> < 0.05). Additively manufactured temporary resins demonstrated the lowest radiopacity values, whereas conventional resin-based composites exhibited the highest radiopacity. Permanent additively manufactured resins showed intermediate radiopacity values. Increasing specimen thickness from 1 to 2 mm significantly increased radiopacity values for all materials (<i>p</i> < 0.001). Several temporary additively manufactured materials presented radiopacity values lower than dentin and enamel.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The findings suggest that radiopacity varies significantly among restorative materials and is influenced by specimen thickness. In particular, the relatively low radiopacity of some additively manufactured resins may limit their radiographic detectability, which should be considered during material selection in clinical practice.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>Radiopacity differences among restorative materials may influence the detection of recurrent caries and restoration margins. Lower radiopacity of some additively manufactured resins highlights the importance of careful mater","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"2043-2051"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.70209","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148277539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lindejane Vieira Costa Alves, Alan Vieira Costa de Sousa, Pablo Costa Rodrigues da Silva, Tainah Oliveira Rifane, Nayara de Oliveira Souza
{"title":"Esthetic Rehabilitation of Anterior Teeth With Diastemas and MIH-Related Enamel Opacities","authors":"Lindejane Vieira Costa Alves, Alan Vieira Costa de Sousa, Pablo Costa Rodrigues da Silva, Tainah Oliveira Rifane, Nayara de Oliveira Souza","doi":"10.1111/jerd.70207","DOIUrl":"10.1111/jerd.70207","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To report a clinical case involving the esthetic rehabilitation of anterior teeth with enamel opacities, diastemas, and unsatisfactory restorations in a patient with molar-incisor hypomineralization, utilizing a resin composite layering technique in combination with resin tints to achieve a conservative and harmonious outcome.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Considerations</h3>\u0000 \u0000 <p>A 29-year-old male patient presented with complaints related to white enamel opacities, an unsatisfactory restoration, and anterior diastemas. Treatment involved the removal of existing restorations, the application of gray resin tints to mask the opacities, and the execution of direct composite restorations using a stratified layering technique. This conservative approach enabled minimal tooth reduction and enhanced optical integration with the surrounding dental structures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The combined use of resin composite stratification and resin tints proved effective in the management of enamel opacities while preserving healthy tooth structure. This approach represents a conservative and aesthetically satisfactory alternative for the treatment of developmental enamel defects, particularly in the anterior region.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"1882-1891"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148264857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ronaldo Hirata, Rafaelly Cubas Camargo, Pedro Hideki Hiromoto, Evelise Machado de Souza, Camila S. Sampaio
{"title":"Double-Stamp Technique With Internal Resin Staining for Enhanced Esthetic Outcomes","authors":"Ronaldo Hirata, Rafaelly Cubas Camargo, Pedro Hideki Hiromoto, Evelise Machado de Souza, Camila S. Sampaio","doi":"10.1111/jerd.70205","DOIUrl":"10.1111/jerd.70205","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To describe a fully digital restorative protocol that combines a 3D-printed stamp guide relined with transparent silicone, a controlled cut-back, and internal resin staining to enhance the esthetic integration of direct anterior composite restorations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Considerations</h3>\u0000 \u0000 <p>This approach enables enhanced esthetic characterization of direct anterior restorations while maintaining the predictability and minimally invasive nature of guided digital techniques.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The double-stamp technique integrates digital planning and guided anatomy transfer with controlled cut-back and internal staining, enabling polychromatic, natural-appearing anterior direct restorations without sacrificing the efficiency and predictability of stamp-based workflows.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>By combining a silicone-relined 3D-printed stamp guide with internal optical characterization and a second stamping step, this technique addresses common limitations of guided injectable/stamp restorations—guide-to-composite sticking and monochromatic outcomes—while maintaining a minimally invasive, reproducible approach for highly-esthetic anterior cases.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"1901-1909"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148317508","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Antonia Patricia Oliveira Barros, Ana Maria Neves Damião, Hilton Túlio Costi, Jesuína Lamartine Nogueira Araújo, Cecy Martins Silva
{"title":"Influence of Immediate Post-Bleaching Polishing on Enamel Color, Morphology, and Sensitivity: A Randomized Clinical Trial","authors":"Antonia Patricia Oliveira Barros, Ana Maria Neves Damião, Hilton Túlio Costi, Jesuína Lamartine Nogueira Araújo, Cecy Martins Silva","doi":"10.1111/jerd.70214","DOIUrl":"10.1111/jerd.70214","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This study evaluated the influence of polishing on enamel color change after in-office bleaching treatment on tooth morphology and sensitivity.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>A total of 50 volunteers were randomized into two groups (<i>n</i> = 25): in-office bleaching with 35% hydrogen peroxide gel for 45 min without polishing (GSEM) or with polishing (GP). Color analysis was performed four times, at the beginning of the starting line and immediately after the first, second, and third bleaching sessions with a spectrophotometer. A qualitative analysis of enamel morphology was performed under a scanning electron microscope. Tooth sensitivity was assessed daily using the Visual Analog Scale (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>There was no statistically significant difference (<i>p</i> > 0.05) in tooth color change when comparing Δ<i>E</i>, Δ<i>E</i><sub>00</sub>, and ΔWID between the groups. The enamel surface showed larger areas of irregularities and depressions in the GP group than in the GSEM group. There was no difference in tooth sensitivity (<i>p</i> > 0.05) between the groups.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Polishing after whitening in the office does not change the color and sensitivity of the tooth but promotes greater changes in the morphology of the enamel, such as increased surface roughness.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Relevance</h3>\u0000 \u0000 <p>Polishing immediately after teeth whitening causes greater changes in enamel surface morphology.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"1892-1900"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148308250","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Silvia Rojas-Rueda, Augusto A. Robles, Emerson Martins, Mohamed Hammamy, Nathaniel C. Lawson
{"title":"Fatigue Survival of Lithium Disilicate, 3D-Printed Composite, and Injection-Molded Direct Composite Veneers","authors":"Silvia Rojas-Rueda, Augusto A. Robles, Emerson Martins, Mohamed Hammamy, Nathaniel C. Lawson","doi":"10.1111/jerd.70200","DOIUrl":"10.1111/jerd.70200","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objectives</h3>\u0000 \u0000 <p>To evaluate and compare the fatigue performance of veneers fabricated from lithium disilicate, 3D-printed resin composite, and injection-molded direct resin composite under standardized cyclic loading.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Thirty extracted human maxillary central incisors (<i>n</i> = 10 per group) received standardized veneer preparations. Veneers were fabricated using CAD/CAM milling (lithium disilicate), additive manufacturing (3D-printed resin composite), or injection molding (direct composite). Specimens were adhesively bonded following manufacturer protocols, thermocycled (10,000 cycles) and subjected to cyclic fatigue loading (200 N, 1.6 Hz) for up to 1,000,000 cycles. Fatigue survival was analyzed using Kaplan–Meier and log-rank tests.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Significant differences in survival distributions were observed (<i>p</i> < 0.001). Lithium disilicate showed the highest fatigue performance, with 80% survival at 1,000,000 cycles and a mean survival of 954,060 cycles. 3D-printed resin composite showed the lowest survival (mean: 134,878 cycles), while direct resin composite exhibited intermediate performance (mean: 460,453 cycles). Failure modes varied by material, with lithium disilicate demonstrating debonding, 3D-printed resin presenting multiple failure types, and direct composite limited to incisal fractures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Lithium disilicate demonstrated superior fatigue performance compared with resin-based materials. Injection molded direct composite performed better than 3D-printed resin composite with more repairable fractures.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>Although lithium disilicate restorations remain the most durable material choice for anterior veneers, injection molded direct composites offer an economical option with possibly repairable fractures.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"1991-2001"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148205259","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali A. Elkaffas, Abdullah Alshehri, Hadi Alamri, Patricia Pereira, Saleh Alhindi
{"title":"Influence of Surface Conditioning Protocols and Lining Materials on the Fracture Resistance of Aged 3D-Printed Onlay Restorations","authors":"Ali A. Elkaffas, Abdullah Alshehri, Hadi Alamri, Patricia Pereira, Saleh Alhindi","doi":"10.1111/jerd.70201","DOIUrl":"10.1111/jerd.70201","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>This in vitro study evaluated the effects of surface conditioning protocols and lining material type on fracture resistance and failure behavior of 3D-printed methacrylate resin onlay restorations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>One hundred twenty 3D-printed onlays were fabricated and allocated to four surface conditioning protocols: no treatment, airborne particle abrasion with aluminum oxide (Al<sub>2</sub>O<sub>3</sub>), universal adhesive application, and combined Al<sub>2</sub>O<sub>3</sub> abrasion followed by adhesive application. Each group was further subdivided according to the lining material used: bis-acryl composite, polymethylmethacrylate, or flowable composite (<i>n</i> = 10). Following surface conditioning and lining procedures, all specimens were subjected to thermomechanical aging. Fracture resistance was subsequently measured using a universal testing machine.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Two-way ANOVA revealed that the surface conditioning protocol (<i>p</i> < 0.001) and lining material (<i>p</i> < 0.001) had a significant influence on fracture resistance, with a significant interaction between the two factors (<i>p</i> = 0.003). Surface-treated specimens showed significantly higher fracture resistance than untreated controls (<i>p</i> < 0.05). The combined Al<sub>2</sub>O<sub>3</sub> and adhesive protocol produced the highest fracture resistance values, although differences among surface-treated groups were not consistently significant (<i>p</i> > 0.05). Flowable composite liners demonstrated significantly higher fracture resistance than bis-acryl composite and polymethylmethacrylate across all protocols (<i>p</i> < 0.05), whereas polymethylmethacrylate showed the lowest values. Failure analysis revealed a shift from predominantly adhesive failures in control groups to mixed and cohesive failures in surface-treated specimens.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Optimized surface conditioning combined with flowable composite lining enhances fracture resistance and interfacial integrity of 3D-printed resin onlay restorations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>From the clinical perspective, enhanced surface conditioning accompanied by flowable composite lining seems to be an effective approach for augmenting the fracture resistance and longevity of repaired or relined 3D-printed resin onlay restorations postaging.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"2002-2012"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148205195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fracture Resistance of Reattached Tooth Fragments: Influence of Adhesive Curing Mode and Composite Viscosity","authors":"Esra Yildirim-Manav, Sema Yazici-Akbiyik, Sedanur Sakalli, Cansu Yikici-Çöl","doi":"10.1111/jerd.70206","DOIUrl":"10.1111/jerd.70206","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>To evaluate the influence of adhesive curing mode and composite viscosity type on the fracture resistance of reattached anterior teeth using the internal groove technique.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>Seventy-two extracted human maxillary central incisors were fractured using a standardized protocol and randomly assigned to six groups according to adhesive curing mode (light-cure, self-cure, and dual-cure) and composite viscosity type (flowable and packable) (<i>n</i> = 12). Fragments were reattached using standardized procedures. All specimens were subjected to thermocycling (5000 cycles) and fracture resistance was measured using a universal testing machine. Fracture resistance recovery (%) was calculated. Data were analyzed using two-way ANOVA and Tukey post hoc tests (<i>α</i> = 0.05).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Both adhesive curing mode and composite viscosity type significantly influenced fracture resistance (<i>p</i> < 0.001), while no significant interaction between factors was observed (<i>p</i> > 0.05). The highest fracture resistance recovery was observed in the dual-cure packable group, whereas the lowest values were recorded in the light-cure flowable group. Packable composites demonstrated higher fracture resistance than flowable composites across all adhesive curing modes.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>Dual-cure adhesives combined with packable composites demonstrated the highest fracture resistance, whereas light-cure adhesives with flowable composites demonstrated the lowest values.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>Dual-cure adhesives combined with packable composites demonstrated higher fracture resistance in fragment reattachment procedures.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"2023-2030"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.70206","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148251942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laís Carolina Landim Gomes, Leonardo Jiro Nomura Nakano, Lilian de Siqueira, Juliana dos Santos Lupp, Luana Marotta Reis de Vasconcellos, Tarcisio José de Arruda Paes Junior
{"title":"Enhancement of Bond Strength, Degree of Conversion and Biocompatibility In Vitro Using a Hollow Glass Fiber Post With an Optical Illuminator in the Restoration of Endodontically Treated Teeth","authors":"Laís Carolina Landim Gomes, Leonardo Jiro Nomura Nakano, Lilian de Siqueira, Juliana dos Santos Lupp, Luana Marotta Reis de Vasconcellos, Tarcisio José de Arruda Paes Junior","doi":"10.1111/jerd.70212","DOIUrl":"10.1111/jerd.70212","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Objective</h3>\u0000 \u0000 <p>Evaluate an optical fiber illuminator associated with a hollow glass post on resin cement's adhesive, physicochemical, and biological properties.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Materials and Methods</h3>\u0000 \u0000 <p>To enhance light transmission throughout the root canal, a photopolymerization optical fiber device was developed. Eighty bovine teeth were distributed into five groups (<i>n</i> = 16): CD (Commercial post, Allcem dual-cured cement); PL (Hollow post, Allcem light-cured cement); PD (Hollow post, Allcem dual-cured cement); POL (Optical illuminator, hollow post, Allcem light-cured cement); POD (Optical illuminator, hollow post, Allcem dual-cured cement). About 2 mm slices (<i>n</i> = 12) from cervical, middle, and apical thirds underwent a push-out bond test, fracture analysis, conversion of monomer degree (DC%), energy dispersive spectroscopy (EDS), and MTT cytotoxicity. Micro-CT (<i>n</i> = 4) evaluated the cementation interface.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Apical third exhibited higher adhesive strength compared to the middle third (<i>p</i> < 0.001). Fiber optic lighting with a hollow glass fiber post and dual-cured cement (POD) from apical showed the highest bond strength and DC%. EDS proved suitable chemical components. Hollow glass fiber post and dual-cured cement (PD) from apical exhibited higher cell viability compared to commercial post (<i>p</i> < 0.001). Micro-CT with 3D reconstruction evidenced the excellent adaptation of the post.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>The illuminator device efficiently improved cement's adhesive strength, degree of conversion for the dual-cured cement, especially in the apical third, and enhanced the biocompatibility of the proposed system.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Relevance</h3>\u0000 \u0000 <p>This novel optical device enhances light transmission within the root canal, improving post bonding and potentially leading to better clinical outcomes in the restoration of endodontically treated teeth.</p>\u0000 </section>\u0000 </div>","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"2031-2042"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148264854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Franz J. Strauss, Margherita G. Liguori, Thomas J. W. Gasser, Nadja Naenni, Ronald E. Jung, Daniel S. Thoma
{"title":"Soft Tissue Volume Augmentation at Single Implant Sites Applying Collagen Matrices or Connective Tissue Grafts: 10-Year Follow-Up of a Randomized Controlled Trial","authors":"Franz J. Strauss, Margherita G. Liguori, Thomas J. W. Gasser, Nadja Naenni, Ronald E. Jung, Daniel S. Thoma","doi":"10.1111/jerd.70194","DOIUrl":"10.1111/jerd.70194","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Aim</h3>\u0000 \u0000 <p>To compare up to 10 years clinical, profilometric and patient-reported outcomes of implant sites previously augmented using a volume-stable collagen matrix (VCMX) or connective tissue graft (SCTG) in the aesthetic zone.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>The original non-inferiority randomized controlled trial (RCT) enrolled 20 patients who received soft tissue volume augmentation with VCMX or SCTG at single implant sites. Clinical assessments and standardized measurements were performed at baseline after crown insertion and at 6 months, 1, 3, 5, 7.5, and 10 years. The primary outcome was mucosal thickness. Secondary outcomes included marginal bone levels (MBL), probing depth (PD), bleeding on probing (BOP), plaque control record, Pink Aesthetic Score (PES), OHIP-14 and buccal profilometric changes. Group comparisons were performed using mixed-effects and generalized estimating equation (GEE) models, which account for within-patient correlations due to repeated measurements and allow inclusion of all available data without requiring imputation for missing observations.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Of the 20 originally enrolled patients, 10 (5 in the SCTG group and 5 in the VCMX group) were available for re-examination at 10 years. The adjusted between-group difference in mucosal thickness was −0.02 mm (95% CI −0.99 to 0.96). As the lower bound of the confidence interval remained above the prespecified non-inferiority margin of −1 mm, non-inferiority of VCMX was shown. Buccal contour changes were comparable during the early follow-up, while a trend toward a greater long-term contour decrease was observed in group VCMX (−0.31 mm [95% CI, −0.65 to 0.03]; <i>p</i> = 0.07). Mean PES values were 10.6 in the SCTG group and 9.6 in the VCMX group, with no significant between-group differences (<i>p</i> = 0.45). Both groups revealed high levels of oral health–related quality of life, with low median OHIP-14 scores (SCTG, 0.0; VCMX, 1.0; <i>p</i> = 0.26).</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusion</h3>\u0000 \u0000 <p>These preliminary long-term findings showed no clinically relevant differences between SCTG and VCMX in terms of clinical, profilometric and patient-reported outcomes. While SCTG remains the reference standard, VCMX represents a less invasive alternative but with a slight tendency toward greater long-term contour reduction.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Clinical Significance</h3>\u0000 \u0000 <p>Volume-stable col","PeriodicalId":15988,"journal":{"name":"Journal of Esthetic and Restorative Dentistry","volume":"38 10","pages":"1920-1932"},"PeriodicalIF":4.6,"publicationDate":"2026-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/jerd.70194","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147973030","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}