Journal of the Indian Society of Pedodontics and Preventive Dentistry最新文献

{"title":"Comparative clinical performance of stainless steel crowns placed using conventional, hall, and modified Hall techniques in carious primary molars: A three-arm parallel-group randomized controlled trial.","authors":"K A Akshaydeep, Varinder Goyal, Puneet Goyal, Shaveta, Gursimran Kaur, Dewakshi Thakur","doi":"10.4103/jisppd.jisppd_323_26","DOIUrl":"10.4103/jisppd.jisppd_323_26","url":null,"abstract":"<p><strong>Background: </strong>Stainless steel crowns (SSCs) are the restoration of choice for extensively carious primary molars because of their durability and clinical success. The Hall technique (HT) and modified HT (MHT) have been introduced as minimally invasive alternatives to conventional SSC placement; however, comparative evidence remains limited.</p><p><strong>Aim: </strong>This study aimed to compare the clinical performance of SSCs placed using the conventional technique (CT), HT, and MHT.</p><p><strong>Settings and design: </strong>A three-arm parallel-group randomized controlled trial conducted in the Department of Pediatric and Preventive Dentistry, Guru Nanak Dev Dental College and Research Institute, Sunam, from August 2025 to March 2026. Clinical outcomes were assessed by a blinded examiner.</p><p><strong>Materials and methods: </strong>Ninety healthy children aged 4-10 years with extensively carious primary molars without clinical or radiographic evidence of pulpal involvement were randomly allocated to CT ( n = 30), HT ( n = 30), or MHT ( n = 30). The primary outcome was crown retention. Secondary outcomes included gingival health, plaque accumulation, treatment-related discomfort immediately after treatment, and parental satisfaction during follow-up. Evaluations were performed at baseline, 3 months, and 6 months.</p><p><strong>Results: </strong>All randomized participants completed follow-up. One participant in the CT group experienced crown loss at 6 months, which was analyzed as treatment failure. Crown retention rates were 96.7%, 100%, and 100% for CT, HT, and MHT, respectively ( P = 1.000). No statistically significant intergroup differences were observed for any evaluated outcome.</p><p><strong>Conclusion: </strong>Within the 6-month follow-up period, all three techniques demonstrated favorable clinical performance. Superiority of any single technique was not demonstrated. The HT and MHT may be considered minimally invasive restorative alternatives in appropriately selected primary molars.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"590-596"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027327","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":"Enamel surface characteristics in early childhood caries: A comparative in vitro analysis with teeth of caries-free dentition.","authors":"Lavanya Sundararajan, J Shanti Swarup, Mahesh Ramakrishnan, Rathika Thomas","doi":"10.4103/jisppd.jisppd_386_26","DOIUrl":"https://doi.org/10.4103/jisppd.jisppd_386_26","url":null,"abstract":"<p><strong>Purpose: </strong>Early childhood caries (ECC) is a chronic, infectious, and transmissible condition with a complex multifactorial etiology, aspects of which remain unclear. This study aims to evaluate differences in enamel loss and surface roughness between primary teeth affected by ECC and those of caries-free dentition.</p><p><strong>Materials and methods: </strong>Sixty-four extracted human primary incisors from two groups of children were allocated to two study groups: Group I (ECC-affected; n = 32) and Group II (caries-free; n = 32). All samples underwent artificial demineralization by immersion in 0.1 mol/L lactic acid (pH 5.3) at 37°C for 30 days. Postdemineralization, enamel loss and surface roughness were assessed using three-dimensional noncontact profilometry. Statistical analysis was performed using independent t -test.</p><p><strong>Results: </strong>The mean depth of demineralization was significantly higher in the ECC affected group (9.04 ± 4.08 μm) compared to the caries-free group (4.45 ± 3.39 μm). Similarly, the mean surface roughness was higher in the ECC group (2.00 ± 0.79 μm) than in the N-ECC group (0.87 ± 0.59 μm).</p><p><strong>Conclusions: </strong>Primary teeth affected by ECC exhibit significantly greater enamel loss and surface roughness following demineralization. These findings suggest the presence of inherent structural enamel defects in ECC-affected teeth, which may contribute to their increased susceptibility to caries development in children.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"597-601"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027350","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":"Association of intelligence quotient with oral health status among orphan children and children of employed and unemployed mothers: A cross-sectional study.","authors":"Bhavna Dave, Vaishnavi Patil, Seema Bargale, Anshula Deshpande, K S Poonacha, Pratik Kariya","doi":"10.4103/jisppd.jisppd_291_26","DOIUrl":"10.4103/jisppd.jisppd_291_26","url":null,"abstract":"<p><strong>Background: </strong>Childhood intelligence is influenced by the caregiving environment and psychosocial factors, whereas oral health reflects overall care and health awareness. Evidence regarding the association between intelligence quotient (IQ) and oral health status across different caregiving settings remains limited.</p><p><strong>Aim: </strong>This study aimed to evaluate the association between IQ and oral health status among orphaned children and children of employed and unemployed mothers aged 8-11 years.</p><p><strong>Settings and design: </strong>A cross-sectional observational study was conducted among 75 children aged 8-11 years.</p><p><strong>Materials and methods: </strong>Participants were categorized into three groups: orphaned children (Group A), children of employed mothers (Group B), and children of unemployed mothers (Group C), with 25 participants in each group. IQ was assessed using Raven's Progressive Matrices, and oral health status was evaluated using decayed, missing, and filled teeth (DMFT), deft, and Gingival Index scores.</p><p><strong>Statistical analysis: </strong>Data were analyzed using descriptive and inferential statistics. Intergroup comparisons were performed using one-way ANOVA, whereas associations between categorical variables were assessed using the Chi-square test. P < 0.05 was considered statistically significant.</p><p><strong>Results: </strong>No significant association was found between IQ grading and DMFT, deft, or gingival Index scores. Oral health status also did not differ significantly across caregiver groups. However, caregiver status was significantly associated with IQ distribution ( χ2 = 16.941, P = 0.010), with orphaned children demonstrating comparatively lower IQ performance and no representation in the above-average IQ category.</p><p><strong>Conclusion: </strong>Caregiving environment appears to influence cognitive outcomes, with orphaned children exhibiting lower IQ scores. No significant association was found between IQ and oral health status.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"516-521"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027306","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":"Evaluation of the influence of child-parent relationship on dental fear in children: A cross-sectional study.","authors":"Sakshi Chawla, Dhanashree Dalal, Madhura Pawar, Sakshi Bhude, Lalit Patil, Sneha Panamgipalli","doi":"10.4103/jisppd.jisppd_234_26","DOIUrl":"10.4103/jisppd.jisppd_234_26","url":null,"abstract":"<p><strong>Background: </strong>Dental fear and anxiety can complicate treatment delivery in children, while the contribution of broader child-parent relationship characteristics remains uncertain.</p><p><strong>Aims: </strong>The study aimed to evaluate the association between child-parent relationship domains and dental fear among children aged 6-12 years.</p><p><strong>Settings and design: </strong>A cross-sectional observational study was conducted at a tertiary dental care center.</p><p><strong>Materials and methods: </strong>Children attending the Department of Pediatric and Preventive Dentistry were recruited consecutively. Dental fear was assessed using the 17-item Modified Children's Fear Survey Schedule-Dental Subscale, and child-parent relationship quality was evaluated using the 30-item Child-Parent Relationship Scale. Closeness, conflict, and dependency were analyzed as domain scores. Of 300 available records, 299 met the eligibility criteria for the primary analysis.</p><p><strong>Statistical analysis used: </strong>Descriptive statistics, Cronbach's alpha, Spearman's rank correlation, Mann-Whitney U -test, and multiple linear regression were applied. Statistical significance was set at P < 0.05.</p><p><strong>Results: </strong>The mean dental fear score was 33.61 ± 7.30. Tooth extraction, syringe-related procedures, and drilling produced the highest fear scores. Closeness ( rs = -0.036, P = 0.534), conflict ( rs =0.065, P = 0.260), and dependency ( rs = -0.004, P = 0.940) were not significantly associated with dental fear. Age and sex were also not associated with dental fear, and adjusted analysis yielded comparable findings.</p><p><strong>Conclusions: </strong>Dental fear was more closely related to procedure-specific concerns than to the child-parent relationship domains assessed in this study. Particular attention should be directed toward fear associated with needles, drilling, and anticipated extraction.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"533-539"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027384","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":"Influence of diet quality on dental caries status among 7-9-year-old children: A cross-sectional study from central Kerala.","authors":"K Shameena, Suchithra Muraleedhar Seetha, Kannan Vadakkepurayil, P P Jeeva, Gibi Syriac, R Maneesha","doi":"10.4103/jisppd.jisppd_251_26","DOIUrl":"https://doi.org/10.4103/jisppd.jisppd_251_26","url":null,"abstract":"<p><strong>Background: </strong>Diet plays a significant role in the development of dental caries; however, evidence on the influence of overall diet quality on caries experience among Indian children is limited.</p><p><strong>Aim: </strong>To evaluate diet quality among 7-9-year-old children and to assess its association with caries status in primary and permanent dentition.</p><p><strong>Materials and methods: </strong>A cross-sectional study was conducted among 100 children aged 7-9 years. Diet quality was assessed using the Diet Quality Index for Indian Children. Food quantities were converted into nutrient values using Ntuitive software. Dental caries was recorded using the decayed, missing, and filled teeth (DMFT) and decayed, extracted, and filled teeth (deft) indices. Data were analyzed using Chi-square test, t -test, one-way ANOVA, and multiple linear regression.</p><p><strong>Results: </strong>Most children had moderately healthy (48%) or unhealthy diets (37%). The mean DMFT was 1.36 ± 1.59, and the mean deft was 4.77 ± 2.43. Diet quality showed a significant association with both DMFT ( P = 0.023) and deft ( P < 0.001). Individual food group analysis revealed significant differences in deft scores with respect to intake of pulses/meat ( P = 0.04), vegetables ( P = 0.039), fruits ( P = 0.009), and sugar ( P = 0.014). Higher deft scores were observed in children consuming inadequate nutritious foods and excess sugars. Regression analysis showed diet quality and sugar intake as significant predictors of deft ( R2 = 38.1%, P < 0.001).</p><p><strong>Conclusion: </strong>Healthier diets were associated with lower caries experience, particularly in primary dentition. Overall diet quality emerged as a key predictor of dental caries, highlighting the importance of balanced dietary patterns over individual food components.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"522-532"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027388","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 a novel dual sensory stimulation technique for reducing dental anxiety and improving behavior in pediatric patients: A randomized controlled trial.","authors":"Namrata Puri, Gauri Kalra, Madhulika Srivastava, Tanu Nangia, Carrolene Langpoklakpam, Sonvita Debnath","doi":"10.4103/jisppd.jisppd_344_26","DOIUrl":"10.4103/jisppd.jisppd_344_26","url":null,"abstract":"<p><strong>Background and aim: </strong>Dental anxiety can compromise children's cooperation during dental treatment. Although distraction is widely used for behavior guidance, evidence comparing dual-sensory distraction techniques with conventional management remains limited. This study evaluated the effectiveness of audiovisual and visual-olfactory dual-sensory stimulation for reducing dental anxiety and improving behavior in pediatric patients.</p><p><strong>Materials and methods: </strong>This randomized controlled trial included 138 healthy pediatric patients aged 4-7 years who were allocated equally to audiovisual distraction, visual-olfactory distraction using jasmine oil, or tell-show-do management. Anxiety and behavior were assessed before and after treatment using the Chhota Bheem-Chutki Scale and Venham's Picture Test. Pulse rate and oxygen saturation (SpO2) were also recorded. Data were analyzed using a paired t -test, one-way analysis of variance, and Kruskal-Wallis test, with significance set at P < 0.05.</p><p><strong>Results: </strong>Both dual-sensory distraction techniques significantly reduced anxiety and improved cooperative behavior. Compared with Tell-Show-Do, both interventions produced better post-treatment behavioral outcomes; audiovisual distraction additionally showed a significant improvement in SpO2. Pulse-rate reduction was comparable among groups.</p><p><strong>Conclusion: </strong>Dual-sensory distraction is an effective non-pharmacological strategy for managing anxiety and improving behavior in pediatric dental patients, with audiovisual distraction showing greater effectiveness.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"553-559"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027296","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":"Assessment and comparison of coronal discoloration induced by natural derivatives as intracanal medicament: An in vitro observational study.","authors":"Resham Payak, Anshul Gangwar, N Sathyajith Naik, Shilpa Kumari, Meghna Bhargava, Jemima Talukdar","doi":"10.4103/jisppd.jisppd_339_26","DOIUrl":"10.4103/jisppd.jisppd_339_26","url":null,"abstract":"<p><strong>Background: </strong>Tooth discoloration is a multifactorial condition that may result from pulpal hemorrhagic products, residual pulpal tissue, intracanal medicaments, obturating, and temporary filling materials. The discoloration potential of intracanal medicaments is of particular concern, especially in anterior teeth where esthetic outcomes are critical. Various intracanal medicaments are used in endodontics, with calcium hydroxide (Ca[OH]2) being the most common. In recent era, various new intracanal medicaments (propolis, bromelain, etc.) have been introduced. Thus, assessment of the discoloration potential due to these medicaments is essential for achieving optimal esthetic outcomes.</p><p><strong>Aim and objectives: </strong>The aim of the present study was to evaluate the discoloration potential of bromelain, propolis, Ca(OH)2, and modified triple antibiotic paste (mTAP). The objectives were to assess and compare discoloration at baseline (T0), 1 week (T1), and 21 days (T2) using a spectrophotometer.</p><p><strong>Methodology: </strong>Ninety-two extracted human permanent mandibular premolars were biomechanically prepared up to size #40. The samples were randomly divided into four experimental groups ( n = 23). Bromelain, mTAP, propolis, and Ca(OH)2. ΔE values were calculated and compared with baseline readings.</p><p><strong>Results: </strong>Statistical analysis was performed using analysis of variance, Tukey's/Dunn's post hoc tests, and paired t -tests, with P < 0.05 considered significant. At 21 days, mTAP (14.25 ± 4.193) demonstrated significantly higher ∆ i values, followed by bromelain (12.81 ± 4.157), Ca(OH)2 (11.53 ± 3.53), and propolis (9.06 ± 6.44).</p><p><strong>Conclusion: </strong>Bromelain showed visible but less progressive discoloration, indicating its potential as an alternative intracanal medicament.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"609-617"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027017","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":"Supercalifragilisticexpialidocious!","authors":"Sharath Asokan","doi":"10.4103/jisppd.jisppd_499_26","DOIUrl":"https://doi.org/10.4103/jisppd.jisppd_499_26","url":null,"abstract":"","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 5","pages":"489-490"},"PeriodicalIF":0.0,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149027378","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 fluoridated, nonfluoridated, and herbal dentifrices with digital oral health intervention on salivary cariogenic microorganisms and alpha-amylase levels in children with severe early childhood caries.","authors":"Arunima Sarkar, Gunjan Yadav, Saumya Navit, Sonali Saha, Mitusmita Kalita, Antra Singh","doi":"10.4103/jisppd.jisppd_155_26","DOIUrl":"10.4103/jisppd.jisppd_155_26","url":null,"abstract":"<p><strong>Context: </strong>Early childhood caries (ECC) is a multifactorial biofilm-mediated disease strongly associated with cariogenic microorganisms such as Streptococcus mutans and Lactobacillus acidophilus . Salivary alpha-amylase has recently been proposed as a biochemical marker reflecting caries activity. With the availability of pediatric dentifrices of varying fluoride concentrations and herbal compositions, comparative clinical evidence of caries incidence in children with ECC remains limited.</p><p><strong>Aim: </strong>To evaluate and compare the effects of high-fluoridated, low-fluoridated, nonfluoridated, and herbal pediatric dentifrices on salivary S. mutans , L. acidophilus, and salivary alpha-amylase levels in children with ECC.</p><p><strong>Settings and design: </strong>Prospective, randomized, double-blind, parallel-group clinical-microbiological trial.</p><p><strong>Materials and methods: </strong>Fifty-six children with Severe ECC (decayed, missing, filled, treated (dmft) ≥4) were randomly allocated into four groups ( n = 14). Participants brushed twice daily with the assigned dentifrice for 15 days. Unstimulated saliva samples were collected at baseline and postintervention. Microbial counts were assessed using selective culture media, and alpha-amylase levels were analyzed by kinetic colorimetric assay. Brushing compliance was reinforced and monitored using a mobile health application. Statistical analysis was performed using one-way analysis of variance, Tukey's post hoc test, paired t -test, and nonparametric equivalents where applicable. The level of significance was set at P < 0.05.</p><p><strong>Results: </strong>A significant reduction in S. mutans and L. acidophilus counts was observed in all groups postintervention ( P < 0.05). The high-fluoridated dentifrice group demonstrated the greatest percentage reduction in both microorganisms. Postintervention salivary alpha-amylase levels showed better modulation ( P = 0.030), with the lowest mean value in the high-fluoride group (109.43 ± 11.62 milliunits per milliliter [mU/mL]) and the highest in the nonfluoridated group (119.93 ± 7.33 mU/mL).</p><p><strong>Conclusion: </strong>High-fluoridated pediatric dentifrice demonstrated superior antimicrobial efficacy in children with ECC. Salivary alpha-amylase may serve as a useful adjunctive biomarker in caries assessment.</p>","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 4","pages":"423-433"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148820866","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":"Letter regarding the article titled \"Comparative evaluation of conventional, preformed, and three-dimensional printed band and loop space maintainers: A randomized clinical trial\".","authors":"Hemlata Nehta, Morankar Rahul, Vijay Prakash Mathur, Kalpana Bansal","doi":"10.4103/jisppd.jisppd_366_26","DOIUrl":"10.4103/jisppd.jisppd_366_26","url":null,"abstract":"","PeriodicalId":101311,"journal":{"name":"Journal of the Indian Society of Pedodontics and Preventive Dentistry","volume":"44 4","pages":"482-483"},"PeriodicalIF":0.0,"publicationDate":"2026-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148820547","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}