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Biomechanical behavior of endocrowns in primary molars at different root resorption stages: A 3D finite element analysis. 不同根吸收阶段初生磨牙内冠的生物力学行为：三维有限元分析
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-10-14 DOI: 10.4012/dmj.2026-149
Shengjie Sun, Jiangli Zhang
{"title":"Biomechanical behavior of endocrowns in primary molars at different root resorption stages: A 3D finite element analysis.","authors":"Shengjie Sun, Jiangli Zhang","doi":"10.4012/dmj.2026-149","DOIUrl":"https://doi.org/10.4012/dmj.2026-149","url":null,"abstract":"<p><p>This study investigated stress distribution in endocrown-restored primary molars during physiological root resorption using three-dimensional finite element analysis. Mandibular first primary molars were modeled at three resorption stages: no resorption, one-third resorption, and one-half resorption. Each model was restored with resin nanoceramic or lithium disilicate endocrowns. Vertical and oblique loads were applied. Von Mises stress and maximum principal stress were analyzed in the endocrown, adhesive layer, and residual tooth structure. The stress distribution was influenced by the material, loading direction, and degree of resorption. Lithium disilicate showed higher stress values. Oblique loading produced higher peak stresses than vertical loading did. With increasing root resorption, stresses gradually decreased and intergroup differences narrowed. Resin nanoceramic endocrowns showed more favorable biomechanical behavior. Physiological root resorption may reduce stress concentrations in endocrown-restored primary molars.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149180052","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A novel chalcone photoinitiating system for dual-functional dental resins through grafting of antibacterial and bioactive properties. 一种新的查尔酮光引发体系，通过接枝抗菌和生物活性的双重功能牙科树脂。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-29 DOI: 10.4012/dmj.2026-091
Xihao Zheng, Ling Zhang, Tai Jiang, Chenyang Liu, Jinkun Liu, Yan Zhu, Hengyong Bu, Toshiki Miyazaki
{"title":"A novel chalcone photoinitiating system for dual-functional dental resins through grafting of antibacterial and bioactive properties.","authors":"Xihao Zheng, Ling Zhang, Tai Jiang, Chenyang Liu, Jinkun Liu, Yan Zhu, Hengyong Bu, Toshiki Miyazaki","doi":"10.4012/dmj.2026-091","DOIUrl":"https://doi.org/10.4012/dmj.2026-091","url":null,"abstract":"<p><p>For dental resins lacking antibacterial and bioactive properties, a novel chalcone derivative (ChD) was synthesized for a ChD/EDB/Iod<sup>3</sup> photoinitiation system. This system enabled dual functionalization of the Bis-GMA/TEGDMA resin with quaternary ammonium monomers (QAMs, DMADDM or DMAHDM) and hydroxyapatite whiskers (HAw) under 405 nm blue light. Results showed QAM-modified resins exhibited >99% bactericidal rate against Staphylococcus aureus (S. aureus), while HAw-modified resins induced calcium-deficient apatite deposition. The dual modification integrated both functions, with antibacterial efficacy increasing with alkyl chain length (C12 to C16). Furthermore, a synergistic effect between QAMs and HAw accelerated biomineralization, reducing the deposition period to 7 days. Although prolonging gel time and increasing fluid uptake, the dual modification enhanced resin hydrophilicity; whisker reinforcement compensated for QAM-induced strength loss and altered fracture behavior from brittle to ductile. All resins maintained MC3T3-E1 cell viability >70%. DMADDM and HAw thereby endowed the resin with superior overall performance and promising clinical potential.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149105678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Antibacterial efficacy of dental floss coated with green synthesised zinc oxide nanoparticles using Calotropis gigantea flower extract: An in vitro study. 用巨茶花提取物包覆绿色合成氧化锌纳米颗粒牙线的抗菌效果：体外研究。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-29 DOI: 10.4012/dmj.2026-131
Tanmayi H, K Vijaya Kumar, H R Dhanyashree, Rajesh P Shastry, Ashwini Prabhu, Shashikanth Hegde
{"title":"Antibacterial efficacy of dental floss coated with green synthesised zinc oxide nanoparticles using Calotropis gigantea flower extract: An in vitro study.","authors":"Tanmayi H, K Vijaya Kumar, H R Dhanyashree, Rajesh P Shastry, Ashwini Prabhu, Shashikanth Hegde","doi":"10.4012/dmj.2026-131","DOIUrl":"https://doi.org/10.4012/dmj.2026-131","url":null,"abstract":"<p><p>Dental floss aids in mechanical plaque removal by cleaning interdental areas, reducing periodontal disease risk, and enabling medicament delivery. This study evaluated the antimicrobial and antibiofilm properties of green-synthesized zinc oxide nanoparticles (ZnONPs)-coated dental floss against early dental plaque colonizers in vitro. Unwaxed dental floss was coated with ZnONPs and characterized using scanning electron microscopy (SEM), dynamic light scattering (DLS), and Fourier-transform infrared spectroscopy (FTIR) to confirm nanoparticle formation and surface adsorption. Antibacterial activity was tested against Staphylococcus aureus and Streptococcus mutans. Surface analysis showed uniform nanoparticle distribution on floss fibers, indicating successful coating. The ZnONPs-coated floss significantly reduced bacterial growth and demonstrated sustained antibiofilm activity against both organisms. These findings suggest that green-synthesized ZnONPs-enhanced floss offers improved interdental hygiene by combining mechanical plaque removal with antimicrobial action, presenting a promising alternative to conventional dental floss.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149105698","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of magnesium oxide nanoparticles on in vitro mechanical and antibacterial performance of self-curing dental polymethyl-methacrylate. 氧化镁纳米颗粒对口腔自固化聚甲基丙烯酸甲酯体外力学性能和抗菌性能的影响。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-09-04 DOI: 10.4012/dmj.2026-050
Alejandro L Vega-Jimenez, América R Vazquez-Olmos, Vanessa Itzel Chavez-Paz, Patricia Gonzalez-Alva, Jorge Guerrero-Ibarra, Andrea Damaris Sanchez-Jimenez, Adriana-Patricia Rodriguez Hernandez
{"title":"Influence of magnesium oxide nanoparticles on in vitro mechanical and antibacterial performance of self-curing dental polymethyl-methacrylate.","authors":"Alejandro L Vega-Jimenez, América R Vazquez-Olmos, Vanessa Itzel Chavez-Paz, Patricia Gonzalez-Alva, Jorge Guerrero-Ibarra, Andrea Damaris Sanchez-Jimenez, Adriana-Patricia Rodriguez Hernandez","doi":"10.4012/dmj.2026-050","DOIUrl":"10.4012/dmj.2026-050","url":null,"abstract":"<p><p>Self-curing polymethyl methacrylate is widely used for provisional restorations, retainers and denture repairs, but its lack of antibacterial activity favors bacterial colonization. Magnesium oxide nanoparticles exhibit broad antibacterial effects through the generation of reactive oxygen species. This study evaluated the influence of mechanochemically synthesized magnesium oxide nanoparticles on the mechanical properties of self-curing polymethyl methacrylate and on its antibacterial activity against Actinomyces israelii, Porphyromonas gingivalis, Capnocytophaga gingivalis, Prevotella intermedia, Streptococcus sanguinis, Streptococcus sobrinus, Eikenella corrodens and Fusobacterium nucleatum sensu stricto. Nanoparticles (1, 3 and 5 wt%) were incorporated into the polymer powder and polymerized. Flexural strength, elastic modulus, water sorption and solubility were determined. Antibacterial activity was assessed in broth cultures and quantified by optical density at 595 nm, with viability confirmed on agar. Nanoparticle incorporation provided in vitro antibacterial activity while partially reducing mechanical strength. These results suggest a targeted use of modified polymethyl methacrylate for applications prioritizing.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"549-558"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148900185","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparation of a mechanically biomimetic polymer-infiltrated ceramic and bond test by digital image correlation. 机械仿生聚合物渗透陶瓷的制备及数字图像相关测试。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-08-19 DOI: 10.4012/dmj.2026-012
Mingyang Chen, Ruyi Li, Shihua Huang, Yichen Xu, Jie Zhou, Linxin Yang, Qianbing Wan
{"title":"Preparation of a mechanically biomimetic polymer-infiltrated ceramic and bond test by digital image correlation.","authors":"Mingyang Chen, Ruyi Li, Shihua Huang, Yichen Xu, Jie Zhou, Linxin Yang, Qianbing Wan","doi":"10.4012/dmj.2026-012","DOIUrl":"10.4012/dmj.2026-012","url":null,"abstract":"<p><p>This study developed a polymer-infiltrated ceramic network (PICN) with dentin-like mechanical properties for tooth restoration, and explored its internal stress transmission mechanisms under load using digital image correlation (DIC). A porous sodium aluminum silicate powder scaffold was fabricated and vacuum-infiltrated with resin to produce experimental PICN (EXP). The mechanical properties of EXP, Enamic, Emax, zirconia were assessed using Vickers hardness and three-point bending tests, shear bond tests, combined with DIC to observe their corresponding stress distribution and transmission path. The EXP with 30% porosity exhibited a flexural strength of 192.90 MPa, a shear bond strength of 23.35 MPa, a Vickers hardness of 2.75 GPa and an elastic modulus of 8.19 GPa which is comparable to demineralized dentin 8.47 GPa. The DIC revealed a more homogeneous strain distribution in the EXP compared with other materials, indicating a promising alternative for CAD/CAM dental restorations.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"567-578"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148789369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparison of residual monomer content in permanent crown materials fabricated by additive manufacturing at different thicknesses. 不同厚度增材制造永冠材料中残余单体含量的比较。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-08-08 DOI: 10.4012/dmj.2026-075
Aybüke Kara, Ayşe Rençber Kizilkaya, Arzu Karatepe
{"title":"Comparison of residual monomer content in permanent crown materials fabricated by additive manufacturing at different thicknesses.","authors":"Aybüke Kara, Ayşe Rençber Kizilkaya, Arzu Karatepe","doi":"10.4012/dmj.2026-075","DOIUrl":"10.4012/dmj.2026-075","url":null,"abstract":"<p><p>This in vitro study aimed to quantitatively evaluate residual monomer release at different time points from specimens with different thicknesses fabricated from five commercially available 3D-printed permanent crown resins manufactured using additive manufacturing technology. Specimens with thicknesses of 2 mm and 4 mm were prepared from five 3D-printed permanent crown resins [BEGO VarseoSmile Crown plus (BVS), NextDent C&B MFH (ND), Formlabs Permanent Crown Resin (FL), Saremco print CROWNTEC (SC), DentaFab PowerResins C&B (DF)] and from GC Cerasmart270 as a reference material (24 groups, n=8). The specimens were stored in a 75% ethanol/water solution for 1 week and 1 month. The elution of triethylene glycol dimethacrylate (TEGDMA), urethane dimethacrylate (UDMA), bisphenol A-glycidyl methacrylate (Bis-GMA) and 2-hydroxyethyl methacrylate (HEMA) was analyzed using high-performance liquid chromatography. Higher monomer release was observed for Bis-GMA and TEGDMA, particularly in the BEGO group. Increased specimen thickness was associated with higher TEGDMA release in the BVS group and higher Bis-GMA and TEGDMA release in the ND group. Prolonged storage duration generally increased Bis-GMA and TEGDMA release levels, particularly in the BVS, SC, and DF groups. Thickness- and time-dependent increases in UDMA and HEMA release were also observed in certain groups. These findings suggest that residual monomer release may be influenced by material type, specimen thickness and storage duration under the present experimental conditions.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"622-632"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148700997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Osteogenic potential of bactericidal nano-graphene oxide/nano-hydroxyapatite silica gel blend in New Zealand rabbits. 抗菌纳米氧化石墨烯/纳米羟基磷灰石硅胶共混物在新西兰兔体内的成骨潜力。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-08-22 DOI: 10.4012/dmj.2026-061
Yasmeen S Mahmoud, Khadiga M Sadek, Sara El Moshy, Mohammed Khashaba, Dalia M Abdel-Hamid
{"title":"Osteogenic potential of bactericidal nano-graphene oxide/nano-hydroxyapatite silica gel blend in New Zealand rabbits.","authors":"Yasmeen S Mahmoud, Khadiga M Sadek, Sara El Moshy, Mohammed Khashaba, Dalia M Abdel-Hamid","doi":"10.4012/dmj.2026-061","DOIUrl":"10.4012/dmj.2026-061","url":null,"abstract":"<p><p>This study evaluated the effect of incorporating nano-graphene oxide (n-GO) as antibacterial agent into nano-hydroxyapatite silica gel (NB) on its osteogenic potential in New Zealand rabbits after 2 weeks. The antibacterial activities of n-GO, n-GO:NB blends and NB were evaluated against Enterococcus faecalis (E. faecalis), Staphylococcus aureus (S. aureus), and Porphyromonas gingivalis (P. gingivalis) using agar well diffusion test. The cytotoxicity of the n-GO:NB (2:1), (1:1), and (1:2) blends was tested against human gingival fibroblasts using MTT cell viability assay. The optimum n-GO:NB (1:1) blend regarding the antibacterial activity and cytotoxicity tests was implemented in New Zealand rabbits. In vitro, the n-GO:NB (1:1) blend showed the second highest significant inhibition zone diameters and cell viability percentage compared with the other tested blends. While in vivo, it exhibited the highest significant new bone area percentage. The n-GO:NB (1:1) blend could be a promising bactericidal bone graft for infected bone defects treatment.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"585-599"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148808431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The effects of desensitizing agents on dentin permeability using a hydraulic conductance device. 用水力传导装置研究脱敏剂对牙本质渗透性的影响。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-09-02 DOI: 10.4012/dmj.2026-016
Buse Saraç, Elif Alkan, Ahmad Bittar, Ibrahim Oğrak, Bora Korkut, Kağan Çelebi, Dilek Tağtekin
{"title":"The effects of desensitizing agents on dentin permeability using a hydraulic conductance device.","authors":"Buse Saraç, Elif Alkan, Ahmad Bittar, Ibrahim Oğrak, Bora Korkut, Kağan Çelebi, Dilek Tağtekin","doi":"10.4012/dmj.2026-016","DOIUrl":"10.4012/dmj.2026-016","url":null,"abstract":"<p><p>This in vitro study evaluated the effects of a sodium-fluoride varnish, two surface pre-reacted glass-ionomer (S-PRG)-containing agents, and an experimental glycerol-stabilized calcium phosphate cluster (GCPC) gel on dentin permeability using a custom hydraulic conductance apparatus. Horizontal 1-mm coronal dentin disks were prepared from extracted human molars, conditioned with 2% citric acid, and randomized to ClinPro Fluoride Treatment, PRG Barrier-Coat, PRG Pro-Care Gel, experimental GCPC gel, or distilled-water control (n=10/group). Hydraulic conductance was calculated at 3 psi from the time required for 50 µL of water to pass through each specimen. ClinPro and PRG Barrier-Coat significantly reduced permeability after the first post-treatment evaluation, whereas ClinPro and both PRG agents produced near-zero values after the second evaluation. GCPC yielded a moderate but significant reduction. Scanning electron microscopy findings were consistent with progressive dentinal tubule occlusion.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"659-667"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148879291","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of 8-methacryloxyoctyl trimethoxy silane concentration on the bonding performance and durability to zirconia. 8-甲基丙烯氧基三甲氧基硅烷浓度对氧化锆键合性能和耐久性的影响。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-09-02 DOI: 10.4012/dmj.2026-055
Haruto Hiraba, Hiroyasu Koizumi, Shoko Miura, Sufyan Garoushi, Takayuki Yoneyama, Lippo Lassila
{"title":"Effect of 8-methacryloxyoctyl trimethoxy silane concentration on the bonding performance and durability to zirconia.","authors":"Haruto Hiraba, Hiroyasu Koizumi, Shoko Miura, Sufyan Garoushi, Takayuki Yoneyama, Lippo Lassila","doi":"10.4012/dmj.2026-055","DOIUrl":"10.4012/dmj.2026-055","url":null,"abstract":"<p><p>This study evaluated the bonding performance and durability of a novel long-chain silane, 8-methacryloxyoctyl trimethoxysilane (8-MOTS), on zirconia surfaces. Specimens were treated with varying concentrations of 8-MOTS (0.1-4.0%) and compared with 3-(trimethoxysilyl)propyl methacrylate (3-TMSPMA) and a commercial silane primer. All zirconia surfaces underwent airborne-particle abrasion with alumina to simulate a clinically common surface treatment. Shear bond strength (SBS) was assessed after water storage (37ºC, 24 h) or boiling (100ºC, 16 h) as a severe hydrothermal screening method. The most favorable bonding performance was observed with 8-MOTS at 1.0% and 1.5%, maintaining SBS values ≥20 MPa after boiling. Failure-mode analysis and scanning electron microscopy indicated greater luting-agent retention and more combined failures in high-performing groups. Within the present alumina-abrasion and MDP-containing bonding protocol, 8-MOTS at 1.0-1.5% showed favorable durability.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"648-658"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148879295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pushout bond test of implant attachment pickup materials on denture bases fabricated by conventional and digital techniques. 传统技术与数字技术制备义齿基托种植体附着拾取材料的推出粘结试验。
IF 1.8 4区 医学
Dental materials journal Pub Date : 2026-09-25 Epub Date: 2026-08-19 DOI: 10.4012/dmj.2025-228
Thanakorn Kruasophon, Montri Ratanachanchai, Somchai Urapepon
{"title":"Pushout bond test of implant attachment pickup materials on denture bases fabricated by conventional and digital techniques.","authors":"Thanakorn Kruasophon, Montri Ratanachanchai, Somchai Urapepon","doi":"10.4012/dmj.2025-228","DOIUrl":"10.4012/dmj.2025-228","url":null,"abstract":"<p><p>This study assessed the pushout force of four different attachment pickup materials on three denture bases made by conventional heat-curing, subtractive and additive manufacturing techniques. A total of 120 specimens were prepared (10/group). A plate size of 25×25×5 mm<sup>3</sup> and central hole. Four attachment pickup materials were applied following the manufacturer's instructions. The specimens were thermocycled 10,000 cycles at 5ºC and 55ºC. An axial pushout test was conducted utilizing a universal testing machine. Data were analyzed using two-way ANOVA and Bonferroni post-hoc tests. Self-cured acrylic resin pickup material exhibited the highest pushout force for heat-cured and milled denture bases (p<0.05). The 3D-printed denture base exhibited the highest pushout force to resin composite with adhesive (p<0.05). 3D-printed denture bases use a resin composite with adhesive show significantly highest pushout force. Meanwhile, heat-cured and milled denture bases prefer self-cured acrylic resin as an attachment pickup material.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"559-566"},"PeriodicalIF":1.8,"publicationDate":"2026-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148789399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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