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Finishing efficiencies of additive-manufactured Co-Cr alloy and Ti alloy clasps. 增材制造钴铬合金和钛合金卡扣的精加工效率。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-05-29 Epub Date: 2025-04-09 DOI: 10.4012/dmj.2024-356
Nagame Mizokoshi, Toshitsugu Sakurai, Hidemasa Shimpo, Noboru Kawamura, Chikahiro Ohkubo
{"title":"Finishing efficiencies of additive-manufactured Co-Cr alloy and Ti alloy clasps.","authors":"Nagame Mizokoshi, Toshitsugu Sakurai, Hidemasa Shimpo, Noboru Kawamura, Chikahiro Ohkubo","doi":"10.4012/dmj.2024-356","DOIUrl":"10.4012/dmj.2024-356","url":null,"abstract":"<p><p>Additive-manufactured (AMed) Co-Cr and Ti alloy clasps were made with five surface treatments. Either one of a conventional freehand finishing or barrel finishing as a medium finishing process or one of a freehand, dry electrolytic, or magnetic polishings was selected as the final polishing process. After each surface treatment, the polishing efficiencies of the AMed clasps were evaluated as to surface roughness, fitness accuracy, and retentive forces. By surface treatments without using magnetic polishing, sufficient surface smoothness was observed for both alloys. Under all five treatment conditions, better fitness accuracies and sufficient retentive forces were obtained in all Co-Cr and Ti alloy clasps for clinically acceptable results. A combination of barrel finishing and dry electro-polishing can be recommended as the automatic finishing technology, replacing the freehand polishing process by dental technicians. The findings of this study will significantly reduce the workload of dental technicians.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"299-307"},"PeriodicalIF":1.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143973401","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
Development of a new self-cleaning denture base material using titanium apatite. 磷灰石钛基托自洁材料的研制。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-05-29 Epub Date: 2025-05-10 DOI: 10.4012/dmj.2024-100
Satoshi Komasa, Yuichiro Tashiro, Akiko Miyake, Takumi Matsumoto, Xin Wang, Mariko Nakai, Hideaki Sato, Yoshiya Hashimoto
{"title":"Development of a new self-cleaning denture base material using titanium apatite.","authors":"Satoshi Komasa, Yuichiro Tashiro, Akiko Miyake, Takumi Matsumoto, Xin Wang, Mariko Nakai, Hideaki Sato, Yoshiya Hashimoto","doi":"10.4012/dmj.2024-100","DOIUrl":"10.4012/dmj.2024-100","url":null,"abstract":"<p><p>Appropriate self-cleaning denture base materials should be developed to prevent denture stomatitis and aspiration pneumonia in older patients and improve their quality of life. We aimed to develop a new denture base material by introducing titanium apatite, an antibacterial material, into a conventional denture base resin. We added titanium apatite (TiHA) during polymerization of methyl methacrylate (MMA) to PMMA. The control group was composed of 0% TiHA, and the experimental groups were composed of 3%, 6%, and 9% TiHA. Surface analysis revealed the distribution of the TiHA crystals on the PMMA surface in the experimental group. We found that the higher the TiHA concentration, the more bacterial growth was suppressed. No significant reduction in the compressive strength was observed. In conclusion, TiHA is a useful material in denture base resin since it is resistant to surface contamination and bacterial adhesion.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"365-374"},"PeriodicalIF":1.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143983239","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
Enhanced infiltration of myoblasts into collagen scaffolds loaded with engineered basic fibroblast growth factor. 加载工程碱性成纤维细胞生长因子的成肌细胞向胶原支架的浸润增强。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-05-29 Epub Date: 2025-04-09 DOI: 10.4012/dmj.2024-314
Tamamo Matsuyama, Shiina Pasanen, Fumino Futami, Ayari Kato, Isao Hirata, Souichi Yanamoto, Koichi Kato
{"title":"Enhanced infiltration of myoblasts into collagen scaffolds loaded with engineered basic fibroblast growth factor.","authors":"Tamamo Matsuyama, Shiina Pasanen, Fumino Futami, Ayari Kato, Isao Hirata, Souichi Yanamoto, Koichi Kato","doi":"10.4012/dmj.2024-314","DOIUrl":"10.4012/dmj.2024-314","url":null,"abstract":"<p><p>Tongue reconstruction after cancer resection often involves the use of free skin flaps. However, this strategy has limitations. To overcome these issues, tissue engineering approaches using basic fibroblast growth factor (bFGF) have been investigated to promote tongue muscle regeneration. In this study, a chimeric protein consisting of bFGF and a collagen-binding peptide (CBP-bFGF) was evaluated for its ability to promote myoblast infiltration into collagen-based scaffolds. Results showed that CBP-bFGF promoted the migration of C2C12 myoblasts and their infiltration into collagen sponges. Based on these observations, we propose that the binding of CBP-bFGF with a collagen sponge provides one of the options for accelerating tongue muscle regeneration.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"282-288"},"PeriodicalIF":1.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143987041","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
Novel bioactive glass-based cement with LDN-193189: Insights from dental pulp cell interaction. 新型生物活性玻璃基水泥LDN-193189：牙髓细胞相互作用的见解。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-05-29 Epub Date: 2025-04-09 DOI: 10.4012/dmj.2024-306
Takumi Nakamichi, Risako Chiba-Ohkuma, Takeo Karakida, Ryuji Yamamoto, Noriyasu Hosoya, Yasushi Yamazaki, Yasuo Yamakoshi
{"title":"Novel bioactive glass-based cement with LDN-193189: Insights from dental pulp cell interaction.","authors":"Takumi Nakamichi, Risako Chiba-Ohkuma, Takeo Karakida, Ryuji Yamamoto, Noriyasu Hosoya, Yasushi Yamazaki, Yasuo Yamakoshi","doi":"10.4012/dmj.2024-306","DOIUrl":"10.4012/dmj.2024-306","url":null,"abstract":"<p><p>Bioceramic materials like bioactive glass (BG) are widely used in endodontics due to their bioactivity and osteoinductive properties. This study characterized fluorescence-labeled porcine immortalized dental pulp cells (DsRed-PPU7 cells) in contact with BG-based cement (BG-C) to advance the development of novel BG-C formulations. BG-C discs were prepared on titanium discs, and DsRed-PPU7 cells were cultured on them. The effects of bone morphogenetic protein-2, transforming growth factor beta-1, and their inhibitors (LDN-193189 and SB-431542) on cell proliferation and mineralization were investigated. Additionally, a new BG-C disc containing LDN-193189 (LDN-BG-C) was developed and tested. The LDN-193189 significantly promoted cell proliferation and mineralization. On LDN-BG-C discs, the formation of petal-like spherical precipitates with hydroxyapatite-like structures was observed, aligning with the cell localization sites. We propose that BG-C discs containing LDN-193189 induces the differentiation of dental pulp cells into odontoblast, and promotes the formation of dentin-like crystals.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"315-325"},"PeriodicalIF":1.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143989790","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
Comparative study of the shrinkage behavior of three bulk-fill resin-based composites using the aluminium tooth model with a MOD cavity. 采用带MOD空腔的铝齿模型对三种填充型树脂基复合材料的收缩特性进行了对比研究。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-05-29 Epub Date: 2025-03-28 DOI: 10.4012/dmj.2024-191
Howe Simpson, Cécile Duval, Darien DeWOLF, Braden Sullivan, Richard Price, Daniel Labrie
{"title":"Comparative study of the shrinkage behavior of three bulk-fill resin-based composites using the aluminium tooth model with a MOD cavity.","authors":"Howe Simpson, Cécile Duval, Darien DeWOLF, Braden Sullivan, Richard Price, Daniel Labrie","doi":"10.4012/dmj.2024-191","DOIUrl":"10.4012/dmj.2024-191","url":null,"abstract":"<p><p>This study evaluated the cusp tip deflection of aluminium tooth models with a mesial-occlusal-distal (MOD) cavity filled with three bulk-fill resin-based composites (RBCs), Aura Ultra Universal (Aura), Admira Fusion x-tra Universal (Admira), and Filtek One shade A2 (Filtek One), to assess the level of shrinkage stress they could produce. The models were prepared using a primer, adhesive and a single RBC increment photo-cured for 20 s at a radiance exitance 1.25 W/cm<sup>2</sup>. The RBC axial shrinkage strain (ε) and stress (S) were also measured. Micro-computed tomography in combination with silver nitrate infiltration showed no interfacial debonding. The mean cusp tip deflection for Admira was found to be smaller than those for the other two RBCs. Although ε and S for Aura were higher than those for Filtek One, their mean cusp tip deflections were not significantly different. These results could be explained by the temporal behavior of their elastic modulus.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"259-271"},"PeriodicalIF":1.9,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143751684","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
Biomechanical analysis of axial-radial integrated functional gradient material implants in healthy and osteoporotic bones. 轴-径向一体化功能梯度材料植入健康骨质疏松骨的生物力学分析。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-04-01 Epub Date: 2025-02-14 DOI: 10.4012/dmj.2024-222
Yanzhao Ma, Zhexuan Yang, Boshen Yu, Kun Lyu, Jian Wu, Baohua Chen, Kena Ma, Yiqun Hu, Dong Chen
{"title":"Biomechanical analysis of axial-radial integrated functional gradient material implants in healthy and osteoporotic bones.","authors":"Yanzhao Ma, Zhexuan Yang, Boshen Yu, Kun Lyu, Jian Wu, Baohua Chen, Kena Ma, Yiqun Hu, Dong Chen","doi":"10.4012/dmj.2024-222","DOIUrl":"10.4012/dmj.2024-222","url":null,"abstract":"<p><p>People with osteoporosis, common among middle-aged and elderly individuals, often need dental implants. Titanium implants, though generally safe, can cause problems due to their stiffness, especially in osteoporotic bone, leading to fractures. This study aims to identify gradient types that offer improved biological adaptation. This was achieved by comparing the mechanical properties of four new two-dimensional functional gradient materials (FGMs) implants to those of conventional and one-dimensional FGM implants in healthy and osteoporotic bone models. The new FGM implants, with reduced stiffness at the bottom and outer parts, kept strain on cancellous bone within safe limits, reducing fracture risk. Notably, the FGM RA L-H implant maintained strain levels within the optimal range (1,500-3,000 µɛ), promoting bone healing and remodeling. By evaluating the stresses and strains, it was concluded that the FGM RA L-H implant is well adapted to significantly reduce stresses and improve bone recovery in healthy and osteoporotic bones.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"179-189"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143432708","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
Optimization of the structure of three-dimensional interconnected porous carbonate apatite bone grafts with spherical granules. 三维互连多孔碳酸盐磷灰石球形颗粒骨移植物的结构优化。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-04-01 Epub Date: 2025-03-01 DOI: 10.4012/dmj.2024-325
Saki Takeda, Akira Tsuchiya, Masafumi Moriyama, Kunio Ishikawa
{"title":"Optimization of the structure of three-dimensional interconnected porous carbonate apatite bone grafts with spherical granules.","authors":"Saki Takeda, Akira Tsuchiya, Masafumi Moriyama, Kunio Ishikawa","doi":"10.4012/dmj.2024-325","DOIUrl":"10.4012/dmj.2024-325","url":null,"abstract":"<p><p>A block-type of three-dimensional carbonate apatite bone graft (3D-CO<sub>3</sub>Ap) is demanded for applying large bone defects. Although we fabricated the 3D-CO<sub>3</sub>Ap with high mechanical strength by fusing polymer-bound spherical precursor, the optimized condition has not yet been found. In this study, we indicated the optimized condition for 3D-CO<sub>3</sub>Ap by controlling granular packing ratio (i.e., different compression ratios of the mold volume from 100% to 140%). 3D-CO<sub>3</sub>Ap was obtained in the condition from 110% to 130%, even though the block was collapsed in 100% and complete conversion to CO<sub>3</sub>Ap was not achieved in 140%. The highest compressive strength was achieved with 130% 3D-CO<sub>3</sub>Ap because the intergranular connection area was the most enhanced. Furthermore, when reconstructing bone defects, 130% 3D-CO<sub>3</sub>Ap prevented soft tissue penetration and showed good osteoconductivity because of their controlled intergranular pore size. The 130% compression was optimal for achieving both high mechanical strength and osteoconductivity.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"233-240"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536795","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
Mechanical and structural characterization of CAD-CAM materials and enamel of deciduous and permanent teeth. CAD-CAM材料与乳牙和恒牙釉质的力学和结构特性。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-04-01 Epub Date: 2025-02-08 DOI: 10.4012/dmj.2024-245
Kanae Wada, Sufyan Garoushi, Junichiro Wada, Tsutomu Iwamoto, Pekka K Vallittu, Lippo Lassila
{"title":"Mechanical and structural characterization of CAD-CAM materials and enamel of deciduous and permanent teeth.","authors":"Kanae Wada, Sufyan Garoushi, Junichiro Wada, Tsutomu Iwamoto, Pekka K Vallittu, Lippo Lassila","doi":"10.4012/dmj.2024-245","DOIUrl":"10.4012/dmj.2024-245","url":null,"abstract":"<p><p>In clinical applications, computer-aided design/computer-aided manufacturing (CAD-CAM) blocks must exhibit behavior similar to that of deciduous teeth. The purpose of this study was to evaluate the material properties and suitability of CAD-CAM as deciduous teeth. Experimental fiber-reinforced CAD-CAM composites (FRC) and various CAD-CAM (lithium disilicate ceramic: IPS, hybrid ceramic: VEM, five composite resins, and PMMA) and enamels (deciduous and permanent teeth) were subjected to nanoindentation to evaluate material properties, including nanohardness and nano-reduced elastic modulus. Energy dispersive X-ray spectrometry was conducted in combination with SEM to evaluate the elemental and microstructural properties. FRC-fiber (2.94 GPa), VEM-ceramic (3.20 GPa), and IPS (3.63 GPa) showed no statistically significant differences compared to deciduous enamel (3.37 GPa). Various CAD-CAM materials were confirmed to exhibit sufficient nanohardness and nano-reduced elastic modulus and a strong microstructure, indicating their potential for application in the restorative treatment of full crowns of deciduous teeth.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"146-156"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143381795","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
Polymerization of resin cements by self-curing with or without adhesive treatment. 有或没有粘合剂处理的树脂水泥自固化聚合。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-04-01 Epub Date: 2025-01-18 DOI: 10.4012/dmj.2024-127
Su Young Lee, Yasushi Shimada, Alireza Sadr, Tomoko Tabata, Takaaki Sato, Ji-Eun Byun, Seung-Hoon Han
{"title":"Polymerization of resin cements by self-curing with or without adhesive treatment.","authors":"Su Young Lee, Yasushi Shimada, Alireza Sadr, Tomoko Tabata, Takaaki Sato, Ji-Eun Byun, Seung-Hoon Han","doi":"10.4012/dmj.2024-127","DOIUrl":"10.4012/dmj.2024-127","url":null,"abstract":"<p><p>The primary aim of this study was to determine whether there is a difference in degree of conversion (DC) between resin cements polymerized with an adhesive and those without an adhesive. The secondary aim was to compare interfacial gap of zirconia restoration when resin cements are self-cured. The DC of resin cement was measured without adhesive treatment continuously for 15 min and at 24 h. The DC was measured again after light-curing or self-curing adhesive treatment. For interfacial gap evaluation, inlay cavities were prepared on extracted third molars. Zirconia restorations were fabricated and cemented with the resin cement. After thermo-cycling, interfacial gap at the restoration-tooth interface was investigated using swept-source optical coherence tomography (SS-OCT) imaging. The DC of resin cement with adhesive treatment differed depending on the adhesive, cement, and polymerization method (p<0.05). Interfacial gap was different depending on the adhesive and cement (p<0.05).</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"129-139"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143001749","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
Exploring a new Portland cement-free calcium silicate cement -Part 1: Synthesis of dicalcium and tricalcium silicate. 探索一种新型无硅酸盐钙水泥——第一部分：硅酸二钙和硅酸三钙的合成。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2025-04-01 Epub Date: 2025-03-01 DOI: 10.4012/dmj.2024-238
Tomomi Itoh, Kohei Shintani, Takashi Horiguchi, Norihiro Sasamoto, Katsushi Okuyama, Yukimichi Tamaki, Takeshi Suwabe, Satoshi Yokose, Satoshi Kawano
{"title":"Exploring a new Portland cement-free calcium silicate cement -Part 1: Synthesis of dicalcium and tricalcium silicate.","authors":"Tomomi Itoh, Kohei Shintani, Takashi Horiguchi, Norihiro Sasamoto, Katsushi Okuyama, Yukimichi Tamaki, Takeshi Suwabe, Satoshi Yokose, Satoshi Kawano","doi":"10.4012/dmj.2024-238","DOIUrl":"10.4012/dmj.2024-238","url":null,"abstract":"<p><p>Mineral trioxide aggregate cement is an excellent pulp-capping material; however, its base Portland cement contains highly toxic elements and is expensive. This study aimed to explore the possibility of using calcium silicate cement without Portland cement. Synthesis was attempted via firing using calcium silicate (CS), as the base material, and calcium oxide (CA). According to the chemical reaction, they were weighed and sintered in an electric furnace at a sintering temperature of 1,300ºC based on the results of thermogravimetric differential thermal analysis. The powder composition after firing was examined by X-ray diffraction analyses. Compressive tests were performed using a universal testing machine. The sintered powders were confirmed as dicalcium silicate (CS2) and tricalcium silicate (CS3); however, some peaks were detected and their compressive strengths were lower than that of CS. These results suggest that CS2 and CS3 were successfully synthesized from a mixture of CA and CS.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":" ","pages":"140-145"},"PeriodicalIF":1.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143536782","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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