Journal of Prosthetic Dentistry最新文献

{"title":"Illuminant metamerism between natural teeth and zirconia restorations evaluated with a chromatic adaptation transform","authors":"Sascha Hein MDT ,&nbsp;Stephen Westland PhD","doi":"10.1016/j.prosdent.2023.07.035","DOIUrl":"10.1016/j.prosdent.2023.07.035","url":null,"abstract":"<div><h3>Statement of problem</h3><div>Little is known about the effect of illuminant metamerism between natural teeth and zirconia restorations, despite their increasing clinical popularity.</div></div><div><h3>Purpose</h3><div>The purpose of this in vitro study was to compare illuminant metamerism between pairs of natural teeth and layered zirconia restorations and pairs of natural teeth and monolithic zirconia restorations under 10 different illuminants and analyze their metameric potential.</div></div><div><h3>Material and methods</h3><div>Spectral reflectance factors were obtained from 10 pairs of extracted natural teeth and layered zirconia restorations and 28 pairs of extracted natural teeth and monolithic multilayer zirconia restorations. Each pair showed a color match that was within the visual threshold for clinical acceptability (CIEDE2000≤1.8). A special index of metamerism for the change of illuminant (<em>M</em>_ilm) was calculated from the CIEDE2000 color difference equation. Descriptive statistics and the one-sample <em>t</em> test were used to analyze the results for the <em>M</em>_ilm and for both groups of layered and monolithic zirconia restorations (α=.05).</div></div><div><h3>Results</h3><div>Layered zirconia restorations reached a mean ±standard deviation value for <em>M</em>_ilm=0.3 ±0.2 and <em>M</em>_ilm=0.5 ±0.4 for monolithic zirconia restorations (<em>P</em>&lt;.01).</div></div><div><h3>Conclusions</h3><div>The effect of illuminant metamerism between natural teeth and zirconia crowns was weak and generally within the clinical acceptability limit.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 1020-1027"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10213400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A comparative evaluation of the diagnostic accuracy of an infrared sensor device with standard mounting procedure in completely edentulous patients: A pilot clinical study","authors":"Aryen Kaushik BDS, MDS ,&nbsp;Taranjeet Kaur BDS, MDS ,&nbsp;Shashidhara Hebbal Shadaksharappa BDS, MDS ,&nbsp;Pooja Rani BDS, MDS ,&nbsp;Shikha Sharma BDS ,&nbsp;Harsh Vardhan Sinha BDS, MDS","doi":"10.1016/j.prosdent.2022.11.014","DOIUrl":"10.1016/j.prosdent.2022.11.014","url":null,"abstract":"<div><h3>Statement of problem</h3><div>The conventional diagnostic mounting procedure in completely edentulous patients is time-consuming and increases the laboratory workload. Alternatives like optical scanners and jaw tracking devices have been documented but have their own shortcomings.</div></div><div><h3>Purpose</h3><div>The purpose of this pilot clinical study was to assess the suitability of an infrared sensor scan device in procuring the diagnostic data parameters for completely edentulous patients.</div></div><div><h3>Material and methods</h3><div><span>Twelve completely edentulous participants were enrolled in the study. For each, the distance between the arches was measured by 2 clinical techniques at 3 common reference points, M1, M2, M3, for the maxillary arch and m1, m2, m3 for the mandibular arch. The control group measurements were recorded by using a standard diagnostic mounting procedure on a semi-adjustable articulator, and the experimental group measurements were recorded by using an infrared sensor scan device. To convert the analog infrared sensor output into digital data, the Arduino ADC software program was used. The data from both study groups were statistically compared by using the independent </span><em>t</em> test (α=.05).</div></div><div><h3>Results</h3><div>No significant difference in variation was found between the mean measurements of the device and diagnostic mounting (<em>P</em>&gt;.05). The maximum variation recorded by the experimental device was 1.7 mm, whereas the minimum variation was 0.8 mm (mean 1.25 mm).</div></div><div><h3>Conclusions</h3><div>The use of precisely calibrated infrared sensors may be a cost-effective option for diagnostic mounting.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 981.e1-981.e8"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10441902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of a CAD-CAM combination matrix for trial restorations: A dental technique","authors":"Lucas Queiroz Caponi DDS, MSc ,&nbsp;Eduardo de Lima Flor DDS, MSc ,&nbsp;Carla Vidal-Ponsoda DDS, MSc ,&nbsp;Oscar Figueras-Alvarez DDS, PhD ,&nbsp;Miguel Roig MD, DMD, PhD","doi":"10.1016/j.prosdent.2022.10.017","DOIUrl":"10.1016/j.prosdent.2022.10.017","url":null,"abstract":"<div><div><span>The trial restoration increases outcome predictability in restorative treatments, enhances communication among specialists and patients, and guides tooth preparations<span>. It should reproduce the planned design precisely because many decisions will be made based on the transferred design. Traditionally, a diagnostic waxing design is transferred to the mouth with a flexible silicone matrix. However, a rigid matrix would ensure an accurate transfer of the planned design by avoiding the deformation of the silicone index. A step-by-step technique for fabricating a computer-aided design and computer-aided manufactured (CAD-CAM) rigid matrix relined with polyvinyl </span></span>siloxane material to fabricate a trial restoration is presented. The technique ensures accurate detail reproduction and dimensional stability, avoiding deformation and ensuring a predictable transfer of the planned design.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 850-856"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10474805","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of zirconia crowns restoring endodontically treated posterior teeth with 2 finish line designs and 2 occlusal reduction schemes: A randomized clinical trial","authors":"Alaa El-Ashkar BDS, PhD ,&nbsp;Omnia Nabil BDS, PhD ,&nbsp;Maha Taymour BDS, PhD ,&nbsp;Adel El-Tannir BDS, MSD","doi":"10.1016/j.prosdent.2022.10.004","DOIUrl":"10.1016/j.prosdent.2022.10.004","url":null,"abstract":"<div><h3>Statement of problem</h3><div><span>Preparation design has been linked to restoration survival, and the finish line geometry, such as a deep chamfer or shoulder, has been linked to marginal integrity. However, limited data are available for restoration success with the feather-edge finish line when used with monolithic zirconia crowns with different </span>occlusal reduction schemes.</div></div><div><h3>Purpose</h3><div>The purpose of this randomized clinical trial was to evaluate the clinical performance of 2 finish line designs (feather-edge and rounded shoulder) in relation to 2 occlusal designs (flat and planar) in endodontically treated teeth restored with monolithic zirconia crowns.</div></div><div><h3>Material and methods</h3><div>Sixty-six complete-coverage monolithic zirconia crowns were provided for posterior endodontically treated teeth. The participants were divided into 3 groups based on the preparation design: the control group (PS) had a planar occlusal scheme with a rounded shoulder finish line; the first intervention group (FF) had a flat occlusal scheme with a feather-edge finish line; and the second intervention group (FS) had a flat occlusal scheme with a rounded shoulder finish line. The crowns were designed with the exocad software program and milled with a 5-axis machine. After cementation<span><span>, clinical performance in terms of marginal adaptation, marginal discoloration, fracture, and secondary caries was evaluated by using the modified United States Public Health Service (USPHS) criteria. The </span>gingival index score system was used to evaluate the gingival response. The scores were recorded immediately after cementation and at 3 subsequent follow-up visits every 3 months for 1 year. The chi-squared test was used in all comparisons of outcomes and follow-up durations (α=.05).</span></div></div><div><h3>Results</h3><div>In terms of marginal adaptations, the control group (PS) demonstrated the best marginal adaptation scores during follow-up visits, followed by intervention 2 (FS), and lastly, intervention 1 (FF), which was scored mostly with Bravo. At the third follow-up visit, the intervention 1 (FF) group reported the most gingival responses of all groups. No significant difference among the groups was found in terms of marginal discoloration, fracture, or secondary caries at any of the follow-up visits. Each group received a perfect Alfa score of 100% on all 3 follow-up assessments.</div></div><div><h3>Conclusions</h3><div>In this 1-year randomized clinical trial, all evaluated preparation schemes and corresponding crowns were clinically successful. The clinical performance of monolithic zirconia crowns of the novel preparation design (FF) was successful in terms of marginal adaption, fracture, secondary caries, and marginal discoloration.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 947-955"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"40474875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Letter to the Editor regarding, “Clinical benefits of immediate dentin sealing: A systematic review and meta-analysis” by Alghuali et al","authors":"Mudit K. Yadav DDS,&nbsp;Richard G. Stevenson DDS,&nbsp;Karanjot S. Gill DDS,&nbsp;Anirudha Agnihotry DDS","doi":"10.1016/j.prosdent.2024.07.024","DOIUrl":"10.1016/j.prosdent.2024.07.024","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 1095-1096"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141988205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sponsoring Organizations and Liaisons","authors":"","doi":"10.1016/S0022-3913(24)00662-0","DOIUrl":"10.1016/S0022-3913(24)00662-0","url":null,"abstract":"","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Page A2"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Computerized optical scanning of ears: An in vitro evaluation with an intraoral scanner","authors":"Mariko Hattori DDS, PhD ,&nbsp;Sebastian B.M. Patzelt DMD, MSc, PD Dr med dent habil (PhD equiv.) ,&nbsp;Sandra Stadler DMD ,&nbsp;Ralf J. Kohal DMD, Prof Dr med dent habil (PhD equiv.) ,&nbsp;Kirstin Vach PhD ,&nbsp;Mahmoud E. Elbashti BDS, MSc, PhD ,&nbsp;Yuka I. Sumita DDS, PhD","doi":"10.1016/j.prosdent.2022.11.010","DOIUrl":"10.1016/j.prosdent.2022.11.010","url":null,"abstract":"<div><h3>Statement of problem</h3><div>Making conventional facial impressions can be uncomfortable for the patient and complicated for the prosthodontist. Using facial scanners to digitize faces is an alternative approach. However, the initial costs of the equipment have prevented their widespread use in dental practice, and the accuracy of ear scanning is unclear.</div></div><div><h3>Purpose</h3><div>The purpose of this in vitro study was to investigate the accuracy of a widely used intraoral scanner for digitizing an ear model.</div></div><div><h3>Material and methods</h3><div>For reference, a silicone model of an ear was scanned with an industrial scanner. Then, the model was scanned 5 times with an intraoral scanner. Five conventional impressions of the model were made with a hydrocolloid impression material and poured with dental stone. The stone casts were then digitized with a desktop scanner. The data sets acquired with the 3 approaches were analyzed by using a 3-dimensional (3D) evaluation software program. Trueness and precision values were calculated for each approach. Linear mixed models with random intercepts were fitted to each sample to evaluate the effects of the impression method on mean deviations (α=.05).</div></div><div><h3>Results</h3><div>Mean ±standard deviation trueness and precision values were 0.097 ±0.012 mm and 0.033 ±0.015 mm, respectively, for the digital scan, and 0.092 ±0.022 mm and 0.081 ±0.024 mm for the conventional impression, showing a significantly lower deviation in precision for the digital approach (<em>P</em>&lt;.001).</div></div><div><h3>Conclusions</h3><div>The feasibility of digitizing an ear efficiently by using the investigated intraoral scanner was demonstrated, and similar trueness and significantly better precision values were achieved than when using conventional impressions. These promising results suggest the need for clinical investigations.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 1089.e1-1089.e5"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10447296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Error analysis of stages involved in CBCT-guided implant placement with surgical guides when different printing technologies are used","authors":"Brandon Yeager DMD MS ,&nbsp;Gülce Çakmak DDS PhD ,&nbsp;Fengyun Zheng DDS, PhD ,&nbsp;William Michael Johnston PhD ,&nbsp;Burak Yilmaz DDS PhD","doi":"10.1016/j.prosdent.2022.11.018","DOIUrl":"10.1016/j.prosdent.2022.11.018","url":null,"abstract":"&lt;div&gt;&lt;h3&gt;Statement of problem&lt;/h3&gt;&lt;div&gt;Digital light processing (DLP), continuous liquid interface printing (CLIP), and stereolithography (SLA) technologies enable 3-dimensional (3D) printing of surgical guides. However, how their accuracy compares and how accuracy may affect subsequent steps in guided surgery is unclear.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Purpose&lt;/h3&gt;&lt;div&gt;The purpose of this in vitro study was to investigate the fabrication and seating accuracy of surgical guides printed by using DLP, SLA, and CLIP technologies and evaluate the positional deviation of the osteotomy site and placed implant compared with the digital implant plan.&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Material and methods&lt;/h3&gt;&lt;div&gt;Twenty-one polyurethane&lt;span&gt; models were divided into 3 groups and used to plan implants and design surgical guides. The guides were fabricated by using DLP, SLA, or CLIP 3D printers (n=7) and scanned, and the scan file was compared with the digital design file to analyze the fabrication accuracy at the intaglio and overall external surfaces using root mean square (RMS) values. The triple scan protocol was used to evaluate the seating accuracy of the guides on their respective models. Osteotomies were prepared on models by using the guides followed by a microcomputed tomography image of each osteotomy. The implants were placed through the guides, the scan bodies were tightened to implants, and the models were scanned to obtain the images of placed implant position. Osteotomy and placed implant images were used to calculate the entry point, apex, and long axis deviations from the planned implant position with a software program. A 2-way repeated-measures ANOVA of the RMS data was used to analyze printing and seating trueness, and homogeneity of variance analyses were used at each surface for precision. A 3-way repeated-measures ANOVA was used to analyze distance deviations over the stages (osteotomy and final implant) and locations studied, and a 2-way repeated-measures ANOVA was used for angular deviations. Homogeneity of variance analyses were performed for precision (α=.05).&lt;/span&gt;&lt;/div&gt;&lt;/div&gt;&lt;div&gt;&lt;h3&gt;Results&lt;/h3&gt;&lt;div&gt;The 3D printer type significantly affected the trueness of the guide at the intaglio surface (&lt;em&gt;P&lt;/em&gt;&lt;.001). SLA guides had the lowest mean RMS (59.04 μm) for intaglio surface, while CLIP had the highest mean RMS (117.14 μm). Guides from all 3D printers had low variability among measured deviations and therefore were similarly precise. The seating accuracy of SLA and DLP guides was not significantly different, but both had lower mean RMS values than CLIP (&lt;em&gt;P&lt;/em&gt;=.003 for SLA, &lt;em&gt;P&lt;/em&gt;=.014 for DLP). There were no significant interactions between the stage of surgery, the printer type, or the location of implant deviation (&lt;em&gt;P&lt;/em&gt;=.734). Only the location of deviation (cervical versus apical) had a significant effect on distance deviations (&lt;em&gt;P&lt;/em&gt;&lt;.001). The printer type, stage of surgery, and their interaction did not significantly ","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 995-1004"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10598821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A 32-month evaluation of lithium disilicate cantilever resin-bonded fixed dental prostheses to replace a missing maxillary incisor","authors":"Joyce A. Jonker BSc ,&nbsp;Gil Tirlet DDS, PhD ,&nbsp;Alex Dagba DDS ,&nbsp;Solène Marniquet DDS ,&nbsp;Marinus Ouwerkerk MSc ,&nbsp;Marco S. Cune DDS, PhD ,&nbsp;Marco M.M. Gresnigt DMD, PhD","doi":"10.1016/j.prosdent.2023.07.040","DOIUrl":"10.1016/j.prosdent.2023.07.040","url":null,"abstract":"<div><h3>Statement of problem</h3><div>The absence of a tooth in the esthetic zone can cause emotional and social distress. The use of minimally invasive and visually pleasing lithium disilicate resin-bonded fixed dental prostheses (RBFDPs) may be a suitable option for replacing a missing maxillary incisor. However, the available literature on lithium disilicate cantilever RBFDPs is limited.</div></div><div><h3>Purpose</h3><div>This retrospective multicenter study assessed the survival and success rates of lithium disilicate anterior cantilever RBFDPs with an average follow-up period of 3 years up to 9 years.</div></div><div><h3>Material and methods</h3><div>RBFDPs delivered by 3 operators were clinically assessed for survival using a modified United States Public Health Service criteria list. The incidence density was determined for each criterion and operator. The standard error and 95% confidence interval were calculated for each incidence density difference (α=.05 for all analyses).</div></div><div><h3>Results</h3><div>A total of 108 RBFDPs were evaluated after a mean period of 32.45 months, ranging from 14 days to 111 months. None of the restorations exhibited failure, carious lesions, or fractures during the follow-up period. The primary reasons for reduced success rates were inflammation of the surrounding soft tissues and discoloration, with incidence densities of 0.074 and 0.057 per year, respectively. Significant differences were observed among RBFDPs from different operators for criteria that included adaptation, color match, marginal adaptation, polishability, surface staining, gingival health, and antagonist wear.</div></div><div><h3>Conclusions</h3><div>Cantilever lithium disilicate RBFDPs appear to be suitable for short-term restoration. RBFDPs exhibited visible changes after short-term follow-up. However, these changes did not result in failure.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 956-963"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10651933","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A technique for determining the midline using a facebow","authors":"Andrew S. Ryser DDS ,&nbsp;Jennifer Sabol DDS ,&nbsp;Michael Chew DMD ,&nbsp;Steven Handel DMD","doi":"10.1016/j.prosdent.2024.04.019","DOIUrl":"10.1016/j.prosdent.2024.04.019","url":null,"abstract":"<div><div>This dental technique described assists the clinician with determining the maxillary midline and for the maxillary midline to coincide with the facial midline. This is accomplished during the acquisition of a facebow registration which is often utilized during prosthetic rehabilitation.</div></div>","PeriodicalId":16866,"journal":{"name":"Journal of Prosthetic Dentistry","volume":"132 5","pages":"Pages 871.e1-871.e2"},"PeriodicalIF":4.3,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140908087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}