Anusha Divvi, Mohammed Junaid, K P Indumathi, Seema Ashwin Bhogte, Preetha Elizabeth Chaly, Shivashankar Kengadaran
{"title":"Oral Health Behaviour and its Influence on Oral Health Status and Related Quality of Life among Dental Outpatients - A Cross-Sectional Study.","authors":"Anusha Divvi, Mohammed Junaid, K P Indumathi, Seema Ashwin Bhogte, Preetha Elizabeth Chaly, Shivashankar Kengadaran","doi":"10.4103/ijdr.ijdr_684_22","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_684_22","url":null,"abstract":"<p><strong>Objectives: </strong>This study aimed to predict oral health behaviour (OHB) using the theory of planned behaviour (TPB) and determine its influence on oral health status and oral health-related quality of life (OHRQoL) among subjects attending the outpatient department of a tertiary dental hospital in India.</p><p><strong>Methods: </strong>A pre-validated questionnaire was used among 240 randomly selected study subjects to record their demographic details, attitudes (Att), subjective norms (SN) and perceived behaviour control (PBC) with regard to dietary habits (DH), oral hygiene habits (OH) and dental attendance (DA) behaviours. OHRQoL and oral health status of study participants were recorded using Oral Health Impact Profile-14 (OHIP-14) and World Health Organization (WHO) Oral Health Assessment Form (2013), respectively. Multivariate analysis was performed after the necessary bivariate comparisons.</p><p><strong>Results: </strong>Among demographic characteristics, the Socioeconomic status (SES) of the study subjects highly influenced their DH and OH (P < 0.05). DA was largely affected by the age of the study subjects (P < 0.05). While attitude of the study participants greatly affected their DH, PBC largely influenced their OH and DA behaviours (P < 0.05). The OHRQoL and Decayed Missing Filled Teeth (DMFT) levels were strongly influenced by the participants' DA behaviours (P < 0.05).</p><p><strong>Conclusions: </strong>DMFT scores and OHRQoL were highly influenced by DA behaviour besides others. DA instead was influenced by PBC. Hence, there needs to be a conscious shift towards strengthening the skills of the population to promote oral health.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"34-39"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456493","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 Normal Saline Gel and Ozone Therapy on Soft and Hard Tissue Health in Dental Implant Surgery.","authors":"Abhay Dixit, Bhaskar Agarwal, Kamleshwar Singh, Pooran Chand, Jitendra Rao, Niraj Mishra","doi":"10.4103/ijdr.ijdr_591_23","DOIUrl":"10.4103/ijdr.ijdr_591_23","url":null,"abstract":"<p><strong>Aims: </strong>To comparatively evaluate the effect of normal saline gel and ozonated saline-ozonated gel (ozone therapy) on pain, inflammation, soft tissue, and crestal bone loss in dental implant surgery.</p><p><strong>Methods and material: </strong>Forty adult patients scheduled to undergo implant were randomized into two groups: Twenty patients (n = 20) received ozone therapy and controls (n = 20) received normal saline and gel during implant placement. Inflammation and pain were noted at days 1 and 7 and 3 month intervals by estimating C-reactive protein (CRP) levels and assessing visual analogue scale (VAS) scores. At 3 months, soft tissue outcomes were noted in terms of plaque index, gingival index, and pocket depth, while crestal bone loss was noted via a radiograph.</p><p><strong>Results: </strong>Mean CRP levels were significantly higher in the control group as compared to that in the case group on day 1 and day 7 follow-ups (P < 0.05). Mean VAS scores for pain were also lower in the case group as compared to the control group at all follow-ups, but the difference was significant statistically only at day 1 (P = 0.061). The plaque index was significantly lower in the case group as compared to the control group (P = 0.011) at final follow-up. No significant difference between two groups was observed for crestal bone loss.</p><p><strong>Conclusions: </strong>Ozone therapy during implant placement was effective in reduction of pain, systemic inflammation, and plaque deposition in dental implant patients.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"2-6"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456425","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}
Prashanthi S Madhyastha, Dilip G Naik, Srikant Natarajan, M R Kumar Bhat, Rachel S Vinodhini
{"title":"Effects of Water Sorption and Solubility on Degradation of Silorane and Methacrylate-Based Dental Composites.","authors":"Prashanthi S Madhyastha, Dilip G Naik, Srikant Natarajan, M R Kumar Bhat, Rachel S Vinodhini","doi":"10.4103/ijdr.ijdr_195_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_195_23","url":null,"abstract":"<p><strong>Introduction: </strong>Wet oral environment may have deleterious effects on performance of the composites due to influences of water sorption and solubility. The study evaluated the hydrolytic degradation caused because of water sorption and solubility of silorane and methacrylate-based dental composites.</p><p><strong>Methods: </strong>Ten disc samples (2 mm × 10 mm) were prepared. Samples were analyzed for water solubility and sorption according to ISO 4049:2000 regulations and tested for mass gain or loss following immersion in water or in artificial saliva at 1 day, 15 days, and 30 days period. Student's 't' test, repeated measures analysis of variance (ANOVA), and Tukey's post-hoc tests determined statistical significance of the experimental results with global significance set at P = 0.05.</p><p><strong>Results: </strong>Considerable sorption and solubility was observed with time in both materials on immersion. Silorane composites showed lower water sorption and solubility than methacrylate-based composite (MBC). Artificial saliva demonstrated higher sorption and solubility compared to distilled water.</p><p><strong>Conclusion: </strong>Silorane composites display enhanced hydrolytic stability even after a month of immersion in contrast to conventional methacrylate-based composites (MBCs), making it a better alternative to MBC resins clinically.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"76-79"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456427","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":"The Role of Robotics in Dental Implants.","authors":"S M Balaji","doi":"10.4103/ijdr.ijdr_358_24","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_358_24","url":null,"abstract":"","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"1"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456508","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}
Rakhi S Purkayastha, Samir Joshi, Krishnanunni Nair, Sudhir Pawar
{"title":"Efficacy for Lidocaine and Articaine in Inferior Alveolar Nerve Block - A Comparative Study.","authors":"Rakhi S Purkayastha, Samir Joshi, Krishnanunni Nair, Sudhir Pawar","doi":"10.4103/ijdr.ijdr_678_23","DOIUrl":"10.4103/ijdr.ijdr_678_23","url":null,"abstract":"<p><strong>Aims: </strong>Compare the efficacy of 2% lidocaine with adrenaline (1:200,000) and 4% articaine with adrenaline (1:100,000) in inferior alveolar nerve block prior to extraction of bilateral teeth posterior to canine in interval of one week.</p><p><strong>Methods and material: </strong>Thirty-five patients were selected for the study. Patients were divided into two different groups: Group 1 - (2% lignocaine with adrenaline (1:200,000)) and Group 2 - (4% articaine with adrenaline (1:100,000)) solution. The study variables for each anaesthetic agent were: onset of action and depth of anaesthesia. A pulp tester was used to demonstrate quantitative values and a visual analogue scale (VAS) was used for qualitative evaluation of the two anaesthetic drugs in 2 min cycle for 10 min with respect to test canine. Anaesthesia was considered successful when pulp tester value 64 was achieved in 10 min for both the anaesthetic agent.</p><p><strong>Statistical analysis used: </strong>The difference in the efficacy of lignocaine and articaine was analysed using Student's t test. Within group comparison of the response to the pulp vitality test and VAS over various time periods was analysed using repeated measures Analysis of Variance (ANOVA) with post-hoc Bonferroni test.</p><p><strong>Results: </strong>Data analysis showed statistical differences in onset and depth of anaesthesia between the two groups (P < 0.05).</p><p><strong>Conclusions: </strong>4% Articaine with adrenaline (1:100,000) onset of action is faster and depth of anaesthesia is better compared to 2% lignocaine with adrenaline (1:200,000). Many previous studies reported onset of anaesthesia, but this study evaluates onset and depth of both the anaesthetic agent quantitatively and qualitatively.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"40-44"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456483","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}
S M Balaji, Krishna Munnee, Preetha Balaji, Chris Joseph Chellaraj, Sachin Nishanth, Varsha Christy Rani Balaji
{"title":"Maxillomandibular Fusion Along with Fusion of Dorsal Surface of the Tongue to the Hard Palate-A Case Report.","authors":"S M Balaji, Krishna Munnee, Preetha Balaji, Chris Joseph Chellaraj, Sachin Nishanth, Varsha Christy Rani Balaji","doi":"10.4103/ijdr.ijdr_961_23","DOIUrl":"10.4103/ijdr.ijdr_961_23","url":null,"abstract":"<p><strong>Rationale: </strong>This case report presents a rare combination of congenital anomalies in an otherwise healthy male infant born at 36 weeks. The infant was diagnosed with congenital maxillomandibular synechia, ectrodactyly, and ankyloglossia superior syndrome (ASS).</p><p><strong>Patient concerns: </strong>Inability to open the mouth completely, feeding challenges, and a cleft palate. The infant was stabilized through successful positive pressure ventilation via a face mask at birth and enteral feeding was initiated via a feeding gastrostomy.</p><p><strong>Examination: </strong>Diagnostic tests revealed a midline palatal cleft, hypoplastic jaws, persistent metopic suture, and a bony fusion at the midline.</p><p><strong>Treatment: </strong>Sectioning of the bony spur along the midline and achieving a mouth opening of 2 cm post-manipulation. The patient is under follow-up, with future treatment plans including cleft palate correction at 12 months and potential frontomandibular and lower jaw advancement depending on growth trajectories.</p><p><strong>Takeaway lessons: </strong>This case underscores the complexity of managing multiple congenital anomalies and the need for individualized treatment plans.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"117-119"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456491","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":"An Immunohistochemical and Histological Study of the Animal Periodontal Ligament During Orthodontic Force Application with Concomitant Application of Electric Current - An Animal Study.","authors":"Teh Min Chou, Ashish Agarwal, Rahul Agarwal","doi":"10.4103/ijdr.ijdr_905_22","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_905_22","url":null,"abstract":"<p><strong>Introduction: </strong>The application of direct current can have a significant impact on the rate of tooth movement and surrounding periodontal ligament collagen turnover. This study aims to provide insight into the optimal characteristics of applied current to achieve enhanced tissue response.</p><p><strong>Method: </strong>Eighteen male Wistar rats were divided into three groups (I, II, and III). Split mouth design was used, and each side was allocated into an experimental group or control group. Experimental sides of groups I, II, and III received 20, 10, and 15 μA of current (15 min, twice daily for 3 days). Both the experimental and control groups receive an orthodontic force via the NiTi closed coil spring. The amount of tooth movement was determined daily. Immunohistochemistry slides were scored using the immunoreactive scoring (IRS) system for collagen types I and III. One-way Analysis of Variance (ANOVA) and Tukey post hoc test were used to analyse the rate of tooth movement, while Mann-Whitney test was used to analyse IRS distribution between control and experimental groups.</p><p><strong>Results: </strong>Compared with the control group, there was a statistically significant difference in tooth movement in all the experimental groups, with group 3 showing the maximum rate on days 2 and 3. This was supported by immunoreactive scores for both collagen types I and III.</p><p><strong>Conclusions: </strong>After 72 hours, the expression of collagen types 1 and 3 increased significantly for group III. This finding was in harmony with the rate of tooth movement, which was maximum for group 3 (15 μA) as compared to other groups.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"70-75"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456422","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}
M S Nalini, Manisha Sinha, Prafulla Thumati, Arvind Raghunath
{"title":"Evaluation of the Effect of Occlusal Calibration in Periodontitis Patients with Occlusal Trauma Using T-Scan.","authors":"M S Nalini, Manisha Sinha, Prafulla Thumati, Arvind Raghunath","doi":"10.4103/ijdr.ijdr_40_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_40_23","url":null,"abstract":"<p><strong>Background: </strong>High occlusal forces in patients with untreated periodontitis may reflect occlusal trauma-associated periodontal conditions. Occlusal analysis using T-scan might provide the distribution of occlusal loading forces in periodontitis patients. The study aimed to evaluate the effect of occlusal trauma in periodontitis patients and occlusal calibration using a T-scan.</p><p><strong>Materials and methods: </strong>A total of 30 periodontitis patients were recruited for the study. Patients were categorized into two groups: Group I: scaling and root planing followed by T-scan recording and no occlusal calibration; Group II: scaling and root planing followed by occlusal calibration using T-scan. Clinical parameters, orthopantomogram (OPG) and T-scan evaluation were evaluated at baseline, 3-month and 6-month intervals.</p><p><strong>Results: </strong>Significant improvements in clinical parameters were noted at different time intervals after occlusal calibration using T-scan. At 3-month intervals, mean pocket depth showed statistically significant difference among the test group in the right (upper and lower) and left lower quadrant at P = 0.01, 0.002 and 0.005, respectively. Mean clinical attachment level (CAL) showed statistically significant difference among the test group in the right upper, right lower and left lower quadrants at P = 0.02, 0.001 and 0.009, respectively, at 3 months. The comparison of the mean gingival index (GI) at 6 months showed statistically significant difference among test and control groups at 6 months in different study quadrants (P = 1 in right upper, 0.009 in right lower, <0.001 in left upper and <0.001 in left lower). Mean pocket depth at the 6-month follow-up showed statistically significant difference among the test group in all the study quadrants (P = <0.001 in right upper, <0.001 in right lower, 0.003 in left upper and 0.005 in left lower). Mean CAL showed statistically significant difference among the test group in all the study quadrants at 6-month intervals (P = 0.02 in right upper, <0.001 in right lower, 0.01 in left upper and 0.04 in left lower). The bone defect height showed a statistically significant difference only in the right upper quadrant among both the test groups at the 6-month follow-up (P = 0.02). Comparing the mean percentage of force on both sides of the jaw showed a statistically significant difference among the test group at 6 months (P = 0.001 on the left side and 0.001 on the right side).</p><p><strong>Conclusion: </strong>The occlusal correction using T-scan showed a positive association between probing pocket depth (PPD) and CAL at different time intervals from baseline to 6 months when these parameters were compared after occlusal adjustments.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"23-27"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456485","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 of Perception of Pain with E-Speed Film, CCD Sensor and Photostimulable Phosphor Plates for Intraoral Radiographs in Children using Three Pain Rating Scales.","authors":"Suruchi Juneja, Shital Dalvi, Rajni Aggarwal, Manish Sukhija, Sohajpreet Singh, Shaveta Bansal","doi":"10.4103/ijdr.ijdr_78_23","DOIUrl":"https://doi.org/10.4103/ijdr.ijdr_78_23","url":null,"abstract":"<p><strong>Background: </strong>Dental radiography is an integral part of intraoral evaluation. Children are often uncomfortable during the placement of film or sensor due to the impingement of the soft tissues. Thus, the perception of pain with three intraoral radiographic methods in children was evaluated using three subjective pain rating scales.</p><p><strong>Aim: </strong>To evaluate the discomfort with three different techniques, that is, intraoral periapical (IOPA) radiograph, charge-coupled device (CCD), and photostimulable phosphor (PSP) luminescence (PSPL), using the Wong-Baker Faces Pain Rating Scale (WBFPRS), numerical rating scale, and visual analog scale (VAS).</p><p><strong>Materials and methods: </strong>A sample of 35 children aged 6-12 years were divided into two groups: group 1 (6-8 years) and group 2 (9-12 years). For each child, simulations of the three radiological methods (IOPA, CCD, and PSPL) were performed. The meaning of each facial expression on the WBFPRS, VAS, and the numbers on the numerical rating scale was explained to each child before the procedure.</p><p><strong>Statistical analysis used: </strong>A one-way analysis of variance (ANOVA) test and paired-samples t-test are used.</p><p><strong>Results: </strong>The results revealed that the CCD sensors elicited higher pain scores than those obtained with IOPA and PSPL, whereas the IOPA film showed the least pain score. Higher score values were obtained in group 1 than in group 2, indicating that children aged 6-8 years felt higher discomfort than the 9- to 12-year age group for the same procedure. This difference was statistically significant (P < 0.001).</p><p><strong>Conclusion: </strong>It was concluded that conventional IOPA films were tolerated better by children when compared to PSP plates and CCD sensors.</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"54-58"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456423","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}
Ilana Middleton, Martin Vorster, Peet J van der Vyver
{"title":"A Comparison of Preparation Times between Manual, Rotary, and Reciprocating Files in Primary Molar Pulpectomy.","authors":"Ilana Middleton, Martin Vorster, Peet J van der Vyver","doi":"10.4103/ijdr.ijdr_495_23","DOIUrl":"10.4103/ijdr.ijdr_495_23","url":null,"abstract":"<p><strong>Aim: </strong>To compare preparation times using manual, rotary, and reciprocating files during pulpectomy treatment of primary molars.</p><p><strong>Settings and design: </strong>This study was an in vitro, randomised, cross-sectional study.</p><p><strong>Methods: </strong>The study was performed on 60 extracted human primary mandibular second molars. Only mesiobuccal canals were prepared using one of three preparation techniques; each preparation technique group comprised 20 canals. Canal preparations were performed by a single, skilled operator using stainless-steel (ss) K-files (ISO size 20-35), a ProTaper Gold SX file, and a WaveOne Gold Medium file following glide path preparation. Preparation times were recorded in second (s) with a digital stopwatch.</p><p><strong>Statistical analysis: </strong>Preparation times were compared using analysis of variance and the Kruskal-Wallis analysis of variance, where appropriate. The level of significance was set at P ≤ 0.05.</p><p><strong>Results: </strong>The mean preparation time using the ss K-files was significantly longer (186.4 s) than when using the ProTaper Gold SX (29.6 s) or WaveOne Gold Medium files (30.5 s) (P < 0.001). Similar preparation times were recorded when using the ProTaper Gold SX and WaveOne Gold Medium files (P = 0.939).</p><p><strong>Conclusion: </strong>Preparation times with the ProTaper Gold SX and WaveOne Gold Medium files were significantly faster than when using the ss K-files to prepare primary tooth root canals for pulpectomy. Similar preparation times were noted when using the rotary and reciprocation instrumentation groups (P > 0.05).</p>","PeriodicalId":13311,"journal":{"name":"Indian Journal of Dental Research","volume":"35 1","pages":"45-48"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141456421","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}