发布求助
文献互助 智能选刊 最新文献

Dental materials journal最新文献

筛选
英文 中文
Shape reproducibility of retentive devices made of cast titanium. 钛铸件固定装置的形状再现性。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-30 DOI: 10.4012/dmj.2024-122
Kaori Kiuchi, Hiroyasu Koizumi, Hideyuki Imai, Takayuki Yoneyama, Lu Sun, Guang Hong
{"title":"Shape reproducibility of retentive devices made of cast titanium.","authors":"Kaori Kiuchi, Hiroyasu Koizumi, Hideyuki Imai, Takayuki Yoneyama, Lu Sun, Guang Hong","doi":"10.4012/dmj.2024-122","DOIUrl":"https://doi.org/10.4012/dmj.2024-122","url":null,"abstract":"<p><p>This study aimed to evaluate the shape reproducibility of retentive devices made of cast titanium. Retention beads were placed on wax patterns for frameworks of composite resin-veneered restoration using four bead adhesives. The wax patterns were invested in the magnesia-based material and titanium was cast using two different casting machines. The percentage of reproduced retentive devices were evaluated using imaging software. Cast specimens were sliced and concavity was evaluated. The contact angle between the wax surface and adhesives was determined with a contact angle meter. The reproducibility of retentive devices was not influenced by the type of adhesive for both machines. Reproducibility, however, was better for castings fabricated by a one-chamber machine with the use of two adhesives. Although the contact angle to wax material of adhesives varied considerably, reproducibility and concavity of retentive devices of titanium castings were guaranteed with the combination of two machines and four bead adhesives.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142544302","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
Surface characteristics and bacterial adhesion on single-shade composite resins: A comparative in vitro study of one-step versus multi-step polishing techniques. 单色复合树脂的表面特性和细菌附着力：单步抛光技术与多步抛光技术的体外对比研究。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-26 DOI: 10.4012/dmj.2024-041
Sevde Gül Batmaz, Seda Nur Karakaş, Cihan Küden
{"title":"Surface characteristics and bacterial adhesion on single-shade composite resins: A comparative in vitro study of one-step versus multi-step polishing techniques.","authors":"Sevde Gül Batmaz, Seda Nur Karakaş, Cihan Küden","doi":"10.4012/dmj.2024-041","DOIUrl":"https://doi.org/10.4012/dmj.2024-041","url":null,"abstract":"<p><p>This study evaluated the effects of two polishing systems, OptraGloss (G; one-step) and OptiDisc (D; multi-step), on surface roughness (SR), contact angle (CA), surface free energy (SFE), and bacterial adhesion on three single-shade composite resins: Omnichroma (O), ZenChroma (Z), and Charisma Diamond One (C). Data for SR, CA, SFE, and adhesion of Streptococcus mutans (S. mutans) and Streptococcus mitis (S. mitis) were analyzed using one-way ANOVA, Tukey post-hoc tests, and Pearson correlation (α=0.05). Multi-step polishing groups (OD, ZD, and CD) exhibited significantly lower SR (0.18, 0.18, and 0.29 µm, respectively) compared to OG (0.46 µm), ZG (0.30 µm), and CG (0.44 µm) (p<0.05). The highest CA was observed in ZG (91.6º). S. mitis adhesion was greater than S. mutans in all groups except OG. A significant correlation was observed between SR and the adhesion of S. mutans (r=0.693, p<0.001). Polishing systems applied to single-shade composite resins did not impact the SFE but affected SR, and bacterial adhesion.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496715","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 rosmarinic acid on microtensile bond strength of 1-step self-etch adhesive on artificial caries-affected dentine with or without NaOCl treatment: An in-vitro study. 迷迭香酸对经过或未经过 NaOCl 处理的人工龋齿牙本质上一步法自酸蚀粘合剂微拉伸粘接强度的影响：体外研究
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-26 DOI: 10.4012/dmj.2024-024
Shatha Issa, Natalia Karpukhina, Ahmed Sleibi
{"title":"Effect of rosmarinic acid on microtensile bond strength of 1-step self-etch adhesive on artificial caries-affected dentine with or without NaOCl treatment: An in-vitro study.","authors":"Shatha Issa, Natalia Karpukhina, Ahmed Sleibi","doi":"10.4012/dmj.2024-024","DOIUrl":"https://doi.org/10.4012/dmj.2024-024","url":null,"abstract":"<p><p>This study investigated the effect of rosmarinic acid (RA) on the immediate microtensile bond strength (µTBS) of 1-step self-etch adhesive to artificial caries-affected dentine (CAD), with or without NaOCl treatment. Dentine surfaces of 60 premolars were subjected to pH-cycling for artificial caries induction. Samples were randomly categorized into: NaOClRA group treated with 6% NaOCl and RA, RA group treated with RA solution, NaOCl group treated with 6% NaOCl, and untreated control group. Surface morphology was evaluated using SEM. Following bonding and composite placement, the specimens were sectioned into 1 mm<sup>2</sup> beams after 24 h of water storage, then µTBS test was done. Failure modes were assessed under stereomicroscope. There was significant increase in the µTBS of NaOClRA compared to NaOCl group (p=0.001). RA group showed significant increase in µTBS compared to NaOCl and control groups, (p<0.001, p=0.009 respectively). In conclusion, RA improved the µTBS to CAD with or without NaOCl treatment.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496713","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 effect of human umbilical cord mesenchymal stem cells combined with concentrated growth factor on repairing necrotic pulp caused by dental caries. 人脐带间充质干细胞与浓缩生长因子对修复龋齿引起的坏死牙髓的影响。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-26 DOI: 10.4012/dmj.2024-007
Feifei Wang, Jie Wang, Lijie Zhang, Shifeng Fan, Siyu Liu
{"title":"The effect of human umbilical cord mesenchymal stem cells combined with concentrated growth factor on repairing necrotic pulp caused by dental caries.","authors":"Feifei Wang, Jie Wang, Lijie Zhang, Shifeng Fan, Siyu Liu","doi":"10.4012/dmj.2024-007","DOIUrl":"https://doi.org/10.4012/dmj.2024-007","url":null,"abstract":"<p><p>This study investigated the impact of combining human umbilical cord mesenchymal stem cells (hUC-MSCs) with concentrated growth factor (CGF) on regenerating necrotic pulp. Ten-month-old male Bama miniature pigs were divided into control and caries groups. The experimental teeth were randomly divided into three groups: caries untreated, Ca(OH)<sub>2</sub>, and engineering dental pulp-like tissue (EDPT). hUC-MSCs and CGF scaffold were combined to construct EDPT, and the histological structure was observed. Odontoblasts and dental pulp cells were counted in each group. The results showed that hUC-MSCs adhered firmly to the porous mesh CGF scaffold, grew vigorously, and stretched sufficiently. In the EDPT group, odontoblasts in the root canal were arranged neatly, and predentin was formed. The odontoblast and dental pulp cell counts in the EDPT group were statistically significant compared to the caries untreated and Ca(OH)<sub>2</sub> groups. The hUC-MSCs-CGF could successfully repair necrotic pulp in animals with dental caries.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496716","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
Bond strength of 4META-MMA-TBB resin to a CAD/CAM composite resin block and analysis of acetone-insoluble cured resin residues at adhesive interfaces. 4META-MMA-TBB 树脂与 CAD/CAM 复合树脂块的粘接强度以及粘接界面上丙酮不溶固化树脂残留物的分析。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-26 DOI: 10.4012/dmj.2024-107
Sadaaki Murahara, Asami Uenodan, Hiroaki Yanagida, Hiroyuki Minami
{"title":"Bond strength of 4META-MMA-TBB resin to a CAD/CAM composite resin block and analysis of acetone-insoluble cured resin residues at adhesive interfaces.","authors":"Sadaaki Murahara, Asami Uenodan, Hiroaki Yanagida, Hiroyuki Minami","doi":"10.4012/dmj.2024-107","DOIUrl":"https://doi.org/10.4012/dmj.2024-107","url":null,"abstract":"<p><p>This study investigated the adhesion of 4META-MMA-TBB resin to CAD/CAM composite resin blocks. CAD/CAM composite resin blocks were subjected to alumina blasting, ceramic primer treatment, or both, and then bonded with 4META-MMA-TBB resin. The tensile bond strength of 4META-MMA-TBB resin to blocks without surface treatment was approximately 20 MPa, but with surface treatment, it significantly improved to approximately 40 MPa. Cohesive failure was observed in some blocks with surface treatment with both alumina blasting and ceramic primer. As a result of Soxhlet extraction of the adhesive interface with acetone solvent and FT-IR spectrum analysis, it was found that PMMA remained on the block surface when surface treatment with both alumina blasting and ceramic primer were performed. These results demonstrated that the bond strength of 4META-MMA-TBB resin is significantly improved when both alumina blasting and ceramic primer are applied as surface pretreatment to the CAD/CAM composite resin block.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496712","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
Rheological properties and handling characteristics of four injectable calcium hydroxide pastes. 四种可注射氢氧化钙浆料的流变特性和操作特点。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-26 DOI: 10.4012/dmj.2024-086
Min-Jung Kim, In-Bog Lee
{"title":"Rheological properties and handling characteristics of four injectable calcium hydroxide pastes.","authors":"Min-Jung Kim, In-Bog Lee","doi":"10.4012/dmj.2024-086","DOIUrl":"https://doi.org/10.4012/dmj.2024-086","url":null,"abstract":"<p><p>The aim of this study was to investigate the rheological properties and handling characteristics of four brands of injectable calcium hydroxide pastes (Calcipex II, CleaniCal, DiaPaste, Well-Paste). Shear viscosity was measured with a rotational rheometer. A universal mechanics analyzer assembled in the laboratory was used to quantify the force for extrusion and extruded weight of the materials. The apical pressure during injection into an artificial root canal was measured using a pressure sensor. All materials exhibited pseudoplastic behavior. The force for extrusion was highest for DiaPaste, and lowest for CleaniCal, while the extruded weight was lowest for DiaPaste and highest for CleaniCal (p<0.05), indicating a need for caution when using CleaniCal. However, the pressure generated at the apex may vary depending on the shape, and taper of the needle tip, as well as the viscosity of the materials.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142496714","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
Color adjustment potential of universal shade bulk-fill resin composites. 通用遮光散装树脂复合材料的色彩调节潜力。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-17 DOI: 10.4012/dmj.2024-151
Hiroyuki Arai, Hiroyasu Kurokawa, Kana Hayashi, Ryota Aoki, Rei Muto, Toshiki Takamizawa, Shunichi Suda, Masashi Miyazaki
{"title":"Color adjustment potential of universal shade bulk-fill resin composites.","authors":"Hiroyuki Arai, Hiroyasu Kurokawa, Kana Hayashi, Ryota Aoki, Rei Muto, Toshiki Takamizawa, Shunichi Suda, Masashi Miyazaki","doi":"10.4012/dmj.2024-151","DOIUrl":"https://doi.org/10.4012/dmj.2024-151","url":null,"abstract":"<p><p>This study investigates how the cavity depth of restorations influences the color adjustment potential of universal shade bulk-fill resin composites. Standard cavities, with diameters of 4 mm and depths of either 2 or 4 mm, were created at the center of artificial teeth occlusal surfaces. A structural-colored bulk-fill resin composite and two pigment-incorporated universal shade bulk-fill resin composites were used. Each resin composite was placed into the cavity to assess its color adjustment potential in relation to the artificial tooth color. Following application, the resin composites' surfaces were polished using diamond-impregnated silicone polishers. Color difference analysis revealed ΔE*ab values of 3.3-4.6 and 2.2-9.6 for structural-colored resin composites and pigment-incorporated universal shade resin composites, respectively, as well as ΔE<sub>00</sub> values of 2.7-3.4 and 1.7-5.8 for these resin composites, respectively. These findings suggest that the tested bulk-fill resin composites' color adjustment potential was influenced by restoration depth.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460119","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 comparison of the mechanical properties of 3D-printed, milled, and conventional denture base resin materials. 比较三维打印、研磨和传统义齿基底树脂材料的机械性能。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-17 DOI: 10.4012/dmj.2024-080
Hyeong-Ju Yu, You-Jung Kang, Yeseul Park, Hoon Kim, Jee-Hwan Kim
{"title":"A comparison of the mechanical properties of 3D-printed, milled, and conventional denture base resin materials.","authors":"Hyeong-Ju Yu, You-Jung Kang, Yeseul Park, Hoon Kim, Jee-Hwan Kim","doi":"10.4012/dmj.2024-080","DOIUrl":"https://doi.org/10.4012/dmj.2024-080","url":null,"abstract":"<p><p>This study investigated the mechanical properties of three denture base resin materials produced by three-dimensional (3D) printing (Group P), computer-aided design/computer-aided manufacturing milling (Group M), and conventional (Group C) methods. Three-point flexural tests were performed before and after thermocycling treatment to evaluate the mechanical properties. Additionally, nanoindentation and dynamic mechanical analysis (DMA) were used to analyze the behavior of the materials. After flexural strength tests, scanning electron microscopy (SEM) was performed to evaluate the fracture cross-section. The results consistently showed that Group P exhibited significantly higher flexural strength and modulus regardless of thermocycling than Groups C and M (p<0.05), along with a higher storage modulus in DMA and greater resistance and resilience to nanoindentation deformation. SEM analysis showed that Group C had a relatively smooth cross-section, whereas Groups M and P had torn cross-sections. This study suggests that the 3D-printed material has suitable mechanical properties for hard dental prosthesis applications.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460118","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
Effects of CAD/CAM restorative materials and thickness on the depth of cure of various light-cured resin composite materials. CAD/CAM 修复材料和厚度对各种光固化树脂复合材料固化深度的影响。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-17 DOI: 10.4012/dmj.2024-053
Timothy Fasham, Jean-Pierre Attal, Hélène Gouze, Sarah Abdel-Gawad, Elisabeth Dursun, Philippe François
{"title":"Effects of CAD/CAM restorative materials and thickness on the depth of cure of various light-cured resin composite materials.","authors":"Timothy Fasham, Jean-Pierre Attal, Hélène Gouze, Sarah Abdel-Gawad, Elisabeth Dursun, Philippe François","doi":"10.4012/dmj.2024-053","DOIUrl":"https://doi.org/10.4012/dmj.2024-053","url":null,"abstract":"<p><p>The study assessed the depth of cure (DOC) of different resin composites light-cured through different types of CAD/CAM materials of variable thickness. Three CAD/CAM materials (multilayer zirconia, lithium disilicate glass ceramic, composite) of three thicknesses (2-, 3-, and 4-mm) were prepared and their translucency parameter (TP) were measured. A light-curable and a dual-curable resin cement (Variolink Esthetic LC and DC) and a bulk-fill resin composite with a higher Ivocerin concentration (Tetric PowerFill) were used to mimic luting agents. DOC was assessed via Vickers microhardness testing. Increased thickness of CAD/CAM specimen was associated with decreased DOC. The chemical composition of the resin composites affected their curing performance depending on the light curing mode. Tetric PowerFill presented the greater DOC among the other resin composites. Receiver operating characteristic models of curing status appeared to provide better insight in predicting the DOC of luting agent according to TP than linear regression.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142460120","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 new method to measure the mechanical properties of rotary endodontic Ni-Ti files: Measurement of 6-axis force/torque and automatic root canal preparation. 测量旋转根管治疗镍钛锉机械性能的新方法：测量六轴力/扭矩和自动根管预备。
IF 1.9 4区 医学
Dental materials journal Pub Date : 2024-10-02 DOI: 10.4012/dmj.2024-082
Hyungwoo Lee, In-Bog Lee
{"title":"A new method to measure the mechanical properties of rotary endodontic Ni-Ti files: Measurement of 6-axis force/torque and automatic root canal preparation.","authors":"Hyungwoo Lee, In-Bog Lee","doi":"10.4012/dmj.2024-082","DOIUrl":"https://doi.org/10.4012/dmj.2024-082","url":null,"abstract":"<p><p>The purpose of this study was to develop a new instrument to measure the mechanical properties of rotary endodontic Ni-Ti files (ProTaper Gold F2, ProTaper Ultimate F2, and HyFlex EDM Onefile), and to evaluate the overall utility of the device. The instrument was capable of analyzing the 6-axis force/torque generated by the files during cyclic dynamic movement in a metal curved artificial root canal, and doing automatic cyclic dynamic filing in a resin root canal with a preset vertical force limit by adopting a negative feedback mechanism. By analyzing the 6-axis force/torque, we were able to estimate the position and contact points of the files in the curved root canal. ProTaper Gold showed the highest force/torque in all directions. HyFlex EDM had the highest hysteresis ratio, centering ratio value and NCF (number of cycles to fatigue fracture), while the lowest vertical force.</p>","PeriodicalId":11065,"journal":{"name":"Dental materials journal","volume":null,"pages":null},"PeriodicalIF":1.9,"publicationDate":"2024-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364764","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
下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信