The Journal of Indian Prosthodontic Society最新文献

{"title":"Abutment holder-assisted retrieval of multiunit abutment laboratory analogs from 3D-printed definitive casts.","authors":"Nirmal Kurian, Kevin George Varghese, Nishanth A Sudharson, Rahul Verma","doi":"10.4103/jips.jips_86_25","DOIUrl":"https://doi.org/10.4103/jips.jips_86_25","url":null,"abstract":"<p><p>Retrieval of multiunit abutment laboratory analogs from digitally printed definitive casts is a crucial step in prosthodontic workflows to preserve the integrity of both the cast and the analog. Traditional methods often compromise the cast's structural integrity, necessitating reconstruction for future adjustments. This article introduces a simplified step-by-step technique employing an abutment holder and its corresponding key, ensuring efficient analog retrieval without additional armamentarium. The technique minimizes damage to the analog and cast, facilitating reuse and maintaining workflow efficiency.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"280-282"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650547","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Magnet-assisted removal of ocular prostheses.","authors":"Jayant N Palaskar, Amit Dhansukhlal Hindocha, Anupama Patankar, Aakash Hemal Shah","doi":"10.4103/jips.jips_339_24","DOIUrl":"https://doi.org/10.4103/jips.jips_339_24","url":null,"abstract":"<p><p>The loss of an eye or the presence of a disfigured eye has a profound and far-reaching impact on an individual's psyche. In addition, it significantly affects their social and professional life. Cosmetic rehabilitation using custom-made prosthetic devices provides such individuals with social and professional acceptance, alleviating associated challenges. This communication describes a technique of incorporating a magnet in an ocular prosthesis to make its removal easy. This is especially useful in patients exhibiting deep fornices and severe undercuts. Deep tissue undercuts make it difficult for the patient to remove the prosthesis. The magnet is covered with a layer of acrylic to ensure it does not cause any harmful effects on the adjacent tissues. The prostheses were reported to be comfortable, unobtrusive, and esthetically pleasing, while the incorporation of magnets enhanced their ease of removal.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"276-279"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cone beam computed tomography analysis for immediate implant placement in the anterior maxilla based on radial root position: An observational study.","authors":"Jignasha Suthar, Somil Mathur, Snehal Upadhyay, Thanmai Taduri","doi":"10.4103/jips.jips_33_25","DOIUrl":"10.4103/jips.jips_33_25","url":null,"abstract":"<p><strong>Aim: </strong>To validate the CBCT classification for immediate implant placement (IIP) given by Howard Gluckman in the local population of Gujarat, India, and additionally evaluate the available bone beyond the tooth apex for IIP in the direction of proposed osteotomy.</p><p><strong>Setting and design: </strong>Cross-sectional Observational study.</p><p><strong>Materials and methods: </strong>A total of 103 cone beam computed tomography (CBCT) scans involving the six maxillary anterior teeth were scrutinized in the radial plane. Each CBCT was divided into six slices (n = 618), which were classified according to Gluckman's classification, followed by making the osteotomy lines. Six measurements (L, W1, W2, W3, W4, and W5) were made from root to nasal floor. Bone length (L) was measured in the direction of proposed osteotomy, whereas the bone width was measured at five different points along the proposed osteotomy.</p><p><strong>Statistical analysis used: </strong>Chi-square p value, One-way ANOVA and Post hoc Tukey test.</p><p><strong>Results: </strong>As per Gluckman's classification, it was found that class I showed the highest bone width with the lowest bone length, whereas Class V showed the lowest bone width. The highest bone length was observed in Class IV. The prevalence of different radial root position (RRP) starting from class I to class V was 1%, 75%, 15%, 16%, and 3%, respectively.</p><p><strong>Conclusion: </strong>A distinct correlation was found between the anterior root position and the available bone between the root tip and the nasal floor as per Gluckman's classification.</p><p><strong>Clinical significance: </strong>This study helps in the radiographic evaluation of available bone around the roots of maxillary anterior teeth, which is a critical determining factor for treatment planning in IIP cases. A deep knowledge of RRP, bone morphology, and available alveolar bone beyond the apex provides useful perception to the clinician to plan surgical and grafting procedures to achieve primary stability. This will also help the clinicians to visualize the final prosthetic outcome with respect to the position of access hole.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"244-250"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced osteogenic marker expression in alveolar bone via hydroxyapatite gypsum puger cassava starch scaffold: An in vivo study.","authors":"Amiyatun Naini, Dessy Rachmawati, Zainul Cholid, Ardhianing Hardita, Afif Surya Adena, Siti Khaerunnisa","doi":"10.4103/jips.jips_97_25","DOIUrl":"https://doi.org/10.4103/jips.jips_97_25","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate the effects of hydroxyapatite gypsum puger-cassava starch (HAGP-CS) scaffold on the number of osteoblasts and alkaline phosphatase (ALP) and osteocalcin (OCN) expression in the alveolar bone rat model.</p><p><strong>Settings and design: </strong>In vivo study.</p><p><strong>Materials and methods: </strong>Thirty-six Wistar rats were randomly divided into three groups: rat sockets were given a 1 mm × 1 mm × 1 mm HAGP scaffold, rat sockets were given a 1 mm × 1 mm × 1 mm HAGP-CS, and a control group (rat sockets were not given scaffold material). Following lower left molar extraction, scaffold materials were applied to the sockets. Assessments were conducted on days 7th, 14th, and 28th, with osteoblast counts determined via hematoxylin-eosin staining, and ALP and OCN expressions were analyzed using immunohistochemistry (IHC) staining.</p><p><strong>Statistical analysis used: </strong>Two-way analysis of variance and Tukey's test.</p><p><strong>Results: </strong>A significant increase in osteoblast count was observed on day 28 (P = 0.001). In addition, significant differences were noted in ALP expression on day 7 (P = 0.030) and day 28 (P = 0.001), as well as in OCN expression on days 7 and 28 (P = 0.001) across the groups.</p><p><strong>Conclusions: </strong>Administering a HAGP-CS scaffold significantly enhances osteoblast proliferation and increases ALP and OCN expression in the alveolar bone rat model.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"258-265"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of antimicrobial efficacy at the implant-abutment interface using gold and silver ion coatings - An in vitro study.","authors":"Amritha Chandran, Shalini Joshi, Sunil Dhaded, Y Anand Kumar, Chandrashekar Sajjan, Priyanka Konin","doi":"10.4103/jips.jips_270_24","DOIUrl":"https://doi.org/10.4103/jips.jips_270_24","url":null,"abstract":"<p><strong>Aim: </strong>The aim of the study is to assess the antimicrobial efficacy at Implant-Abutment Interface (IAI) coated with metal ions (silver and gold) causing peri-implantitis, with the objective of comparing its antimicrobial properties.</p><p><strong>Study setting and design: </strong>The study conducted is an in vitro experimental study.</p><p><strong>Material and methods: </strong>A total of 90 specimens 45 Titanium alloy discs substitute for Implant (Ti-6Al-4V, Grade V) and 45 Stainless Steel (315L SS) disc substitute for Abutment were serially ground, polished and cleaned to be coated with gold (Au) and silver (Ag) ions by sputtering technique which was later tested for antimicrobial efficacy by means of agar disk diffusion method with gram negative microorganisms causing peri-implantitis, the measurement of inhibition zone (ZOI) encircling each sample were taken and noted.</p><p><strong>Statistical analysis used: </strong>The mean zone of inhibition data for all the groups were subjected for statistical analysis by Tukey's multiple comparison test and one way ANOVA.</p><p><strong>Results: </strong>The results showed that the antimicrobial efficacy of gold coated Titanium alloy-Stainless steel, (TiAu -SSAu) and Silver coated Titanium- stainless steel (TiAg-SSAg) were significantly higher with a mean ZOI value of 24.6mm (Prevotella intermedia) for gold coated and 17 mm for silver coated groups compared to Uncoated group Titanium alloy- stainless steel (Ti-SS) with a mean zone of inhibition of 10mm, also proved by Tukeys multiple comparison test with statistical significant difference in the antibacterial activity of gold coated group compared to other groups where p <0.0001 against Porphyromonas Gingivalis, Prevotella Intermedia and Aggregatibacter Actinomyces.</p><p><strong>Conclusions: </strong>The surface modification of titanium alloy and stainless steel with metal ion coating (Au and Ag) significantly reduces the signs of peri-implantitis and thus leading to lasting success of implants.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"235-243"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marginal gap of three-dimensional printed full-arch frameworks supported by all-on-four and all-on-six implant designs.","authors":"Leticia Del Rio Silva, Thaís Barbin, Daniele Valente Velôso, Marcelo Ferraz Mesquita, Guilherme Almeida Borges","doi":"10.4103/jips.jips_40_25","DOIUrl":"https://doi.org/10.4103/jips.jips_40_25","url":null,"abstract":"<p><strong>Aim: </strong>The aim of this study was to evaluate the marginal gap of full-arch frameworks (FAFs) supported by all-on-four and all-on-six implant designs, fabricated using different manufacturing technologies.</p><p><strong>Settings and design: </strong>This was an in vitro study.</p><p><strong>Materials and methods: </strong>Fifteen titanium FAFs were fabricated using milling and three-dimensional printing techniques: selective laser melting (SLM) and electron beam melting (EBM) (n = 5/group). The marginal gap between the framework and abutment was measured using a microscope with 1 μm accuracy. Measurements were taken three times by a calibrated examiner (intraclass correlation coefficient of 0.996; P < 0.001) at the buccal and lingual interface between the abutment and the framework.</p><p><strong>Statistical analysis used: </strong>A two-way ANOVA was applied to assess the effects of implant design and manufacturing technology (α = 0.05).</p><p><strong>Results: </strong>When comparing implant designs, the all-on-four group (milling [P = 0.002] and SLM [P = 0.001]) exhibited lower marginal gap values than the all-on-six group. No statistically significant difference was observed between the EBM frameworks in both designs. In the all-on-four group, milling resulted in lower marginal gap values than SLM (P = 0.021) and EBM (P = 0.001), while no statistically significant difference was found between the SLM and EBM groups (P = 0.163). For the all-on-six framework design, the milling (P = 0.008) and EBM (P < .001) groups exhibited lower marginal gap values than the SLM group. No statistically significant difference was detected between the milling and EBM groups (P = 0.160).</p><p><strong>Conclusion: </strong>Milled frameworks should be the preferred choice for rehabilitations using the all-on-four implant design. For the all-on-six design, both milled and EBM frameworks may be indicated. The marginal gap values observed for all FAFs designs and manufacturing technologies can be considered clinically acceptable.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"191-197"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Randomized clinical trial to evaluate the effectiveness of different thicknesses of stabilization splints in treating temporomandibular disorder using joint vibration analysis as a novel diagnostic tool.","authors":"Jyoti Sharma, Rajlakshmi Banerjee, Vijeta Gajbhiye, Anushree Bhoge, Priti Jaiswal, Kiran Nayak","doi":"10.4103/jips.jips_76_25","DOIUrl":"10.4103/jips.jips_76_25","url":null,"abstract":"<p><strong>Aim: </strong>The purpose of the study was to comparatively evaluate temporomandibular joint function and treatment response using joint vibration analysis (JVA) in patients exhibiting disc displacement with reduction (DDR), treated with three variable thickness of stabilization splints. JVA analyzed these vibrations to detect internal joint abnormalities, and their patterns were further categorized using the Piper classification was highly accurate and hence used over magnetic resonance imaging.</p><p><strong>Settings and design: </strong>Randomized clinical trial.</p><p><strong>Materials and methods: </strong>The splint of different thicknesses, i.e., Group A (3 mm), Group B (4 mm), and Group C (5 mm) were given to the study participants for 10 week interval, and pre and posttreatment efficacy was recorded using JVA. Stress perseverance and tooth wear index were recorded with a pre and postquestionnaire.</p><p><strong>Statistical analysis used: </strong>The one way analysis of variance f test and Turkey's post hoc test for multiple comparisons were used to statistically assess the results.</p><p><strong>Results: </strong>The treatment response with Group A and B thickness of stabilization splints was significant (P = 0.01) and with Group C was not significant (P = 5.28). The statistical result of stress perseverance was not significant between the three groups, although reflecting female participants were affected more. The tooth wear index was significant with all the three groups (P = 0.09).</p><p><strong>Conclusion: </strong>The study concluded that the splints given to Group A and Group B showed effective treatment response, while Group C showed positive response in a few individuals, but some individuals compliant of discomfort. The stress level was high in female individuals. Among all the participants, the concern of tooth wear was present.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"210-219"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Beyond individual studies: The urgent need for evidence integration in Prosthodontics.","authors":"Manish Katyayan","doi":"10.4103/jips.jips_254_25","DOIUrl":"https://doi.org/10.4103/jips.jips_254_25","url":null,"abstract":"","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"189-190"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative evaluation of surface roughness and impact strength of conventional polymethyl methacrylate and microcrystalline cellulose reinforced polymethyl methacrylate - An in vitro study.","authors":"Thumma Sagar Reddy, Vinu Thomas George, Gauri Shahi, Sauptik Ray","doi":"10.4103/jips.jips_459_24","DOIUrl":"https://doi.org/10.4103/jips.jips_459_24","url":null,"abstract":"<p><strong>Aim: </strong>To evaluate and compare the surface roughness and impact strength of conventional polymethyl methacrylate (PMMA) with microcrystalline cellulose (MCC)-reinforced PMMA.</p><p><strong>Settings and design: </strong>An in-vitro experimental study was conducted. Fifty PMMA specimens were fabricated and divided into five groups based on MCC concentration (2% or 5%) and particle size (20 μm or 50 μm).</p><p><strong>Materials and methods: </strong>Specimens (80 mm × 10 mm × 4 mm) were categorized as follows: Group A (control; conventional PMMA), Groups B and D (2% MCC with 20 µm and 50 µm particles, respectively), and Groups C and E (5% MCC with 20 µm and 50 µm particles, respectively). Surface roughness was measured using a contact profilometer, and impact strength was tested with a ZwickRoell impact testing machine.</p><p><strong>Statistical analysis used: </strong>Statistical analysis was performed using IBM SPSS Version 28.0. One-way ANOVA followed by Tukey's post hoc test was used to determine intergroup differences, with the significance level set at p<0.05.</p><p><strong>Results: </strong>Surface roughness was lower in Groups B (0.89±0.43), C (1.07±0.34), and E (0.77±0.27) compared to the control Group A (1.25±0.42), while Group D (1.84±0.25) showed higher values. Impact strength in Groups C (1.85±0.23), D (1.80±0.17), and E (1.81±0.26) was slightly lower than the control (1.88±0.31), though not statistically significant. However, Group B (1.56 ± 0.20) showed a significant reduction.</p><p><strong>Conclusion: </strong>The addition of 20 μm MCC reduced surface roughness at both 2% and 5% concentrations, whereas 50 μm MCC increased roughness at 2% but decreased at 5%. Impact strength remained comparable to the control in all groups except PMMA + 2% MCC (20 μm), which exhibited a significant decline. MCC reinforcement influences PMMA's mechanical and surface properties, suggesting its potential for denture base modifications.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"204-209"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of simulated gastric acid on the mechanical properties of conventional and polypropylene mesh reinforced poly methyl methacrylate denture base resin.","authors":"Abhinaya Bollepalli, Anitha Kuttae Viswanathan, Muthukumar Balasubramaniam","doi":"10.4103/jips.jips_130_25","DOIUrl":"https://doi.org/10.4103/jips.jips_130_25","url":null,"abstract":"<p><strong>Aim: </strong>Sustainability of dental polymethyl methacrylate (PMMA) in acidic environments is crucial as oral pH fluctuations can degrade the mechanical properties of denture bases. PMMA strengthening with polypropylene (PP) mesh has improved mechanical properties, but its effectiveness in acidic conditions remains underexplored. This investigation aimed to evaluate the mechanical properties of PP mesh reinforced PMMA (PP-PMMA) on exposure to an acidic environment as against unreinforced denture base resin (UN-PMMA).</p><p><strong>Settings and design: </strong>Experimental In-vitro study.</p><p><strong>Materials and methods: </strong>A total of 120 PMMA samples were prepared as per standardized guidelines and divided into two groups as unreinforced and PP - PMMA. Prepared specimens were immersed in artificial saliva and simulated gastric acid (0.06M HCl, pH 1.2) at 37°C for 96 hours to simulate long-term clinical exposure to an acidic environment. Flexural strength, impact strength, surface roughness and microscopic characteristics were assessed with aid of universal testing machine, Izod's impact tester, profilometer and high-resolution scanning electron microscope (HR-SEM) in order.</p><p><strong>Statistical analysis used: </strong>The data were statistically analyzed using ANOVA and independent t-test set at a significance level of P-values less than 0.05.</p><p><strong>Results: </strong>PP-PMMA exhibited significantly higher flexural strength in simulated gastric acid (70.03±1.4MPa) compared to UN-PMMA (68.77±2.2MPa) (P < 0.05). In simulated gastric acid (HCl), PP-PMMA showed no significant difference in surface roughness compared to UN-PMMA (P = 0.29). However, in artificial saliva, PP-PMMA exhibited lower surface roughness (0.47±0.14μm) than UN-PMMA (0.56±0.08μm) (P < 0.05), indicating improved smoothness. Impact strength remained comparable between groups in both immersion conditions (P > 0.05). The presence of mesh between the layers restricted the ingress of saliva and HCl as was perceived with rougher surface in the external area.</p><p><strong>Conclusion: </strong>PP reinforcement improved the flexural strength of PMMA in acidic environments and maintained surface roughness in acidic environments but did not significantly enhance impact strength. Polypropylene mesh reinforcement effectively reduced porosities and maintained structural integrity within the PMMA matrix. These findings suggested that polypropylene mesh reinforcement enhances the durability of denture base materials and benefits patients with gastroesophageal reflux condition.</p>","PeriodicalId":22669,"journal":{"name":"The Journal of Indian Prosthodontic Society","volume":"25 3","pages":"251-257"},"PeriodicalIF":1.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144650567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}