Padjadjaran Journal of Dental Researchers and Students最新文献

{"title":"Pengaruh perendaman cuka sari apel terhadap stabilitas warna dan kekuatan fleksural basis gigi tiruan nilon termoplastikThe effect of apple cider vinegar immersion on the colour stability and flexural strength of the thermoplastic nylon denture base","authors":"MiftahKhul Jannah, M. Zulkarnain","doi":"10.24198/pjdrs.v6i1.33156","DOIUrl":"https://doi.org/10.24198/pjdrs.v6i1.33156","url":null,"abstract":"Introduction: Thermoplastic nylon is a denture base material made of polyamide resin that needs to be cleaned regu-larly. Apple cider vinegar and Val-clean are used as denture cleaning agents, but they can affect physical and mechanical properties such as colour stability and flexural strength. The purpose of this study was to analyse the effect of immersion in 5% of apple cider vinegar on the colour stability and flexural strength of thermoplastic nylon denture bases. Methods: This research was an experimental laboratory with a post-test-only control group design. Forty-eight samples were fabricated with the size of 20x3 mm for colour stability test and 65x10x3±0.1 mm for flexural strength test, then divided into six sample groups. Colour stability was measured using a colourimeter and flexural strength using a Universal Testing Machine. Data analysis was performed with an ANOVA test. Results: After four days of immersion, colour stability showed no significant effect (p=0.124; p>0.05) between the 5% apple cider vinegar immersion group, Val-clean, and distilled water. While after eight days of immersion, the 5% apple cider vinegar immersion group, Val-clean, and distilled water showed a significant effect (p=0.035; p<0.05). ANOVA test on flexural strength showed a significant effect (p=0.001; p<0.05) between groups of 5% apple cider vinegar immersion, Val-clean, and distilled water after four and eight days of immersion. Conclusions: Thermoplastic nylon denture base is not recommended to be immersed in apple cider vinegar for cleaning because it can cause discolouration and reduce flexural strength.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128024002","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":"Perbedaan harapan pasien terhadap perawatan ortodonti menggunakan alat cekat dan lepasanDifferences in patient expectations of orthodontic treatment with fixed and removable appliances","authors":"Rizka Devi Damayanti, Endah Mardiati, A. Laviana","doi":"10.24198/pjdrs.v5i2.26766","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.26766","url":null,"abstract":"Introduction: Expectation is an important psychological factor affecting a patient’s evaluation and satisfaction level on the quality of treatment outcomes. It is essential to know the patient’s expectations of orthodontic treatment priorly because it is one of the main determinants of patient satisfaction. The purpose of this study was to analyse the differences in patient expectations of orthodontic treatment with fixed and removable appliances at Universitas Padjadjaran Dental Hospital. Methods: This research was cross-sectional analytic. The research subjects were 50 new patients (25 patients indicated for fixed orthodontic appliances and 25 patients indicated for removable orthodontic appliances) who visited the Orthodontic Clinics of Universitas Padjadjaran Dental Hospital, obtained by purposive sampling technique. Patients filled out a questionnaire on expectations of orthodontic treatment. The results were then processed and analysed using the t-test. Results: Patient expectations showed several significant differences (p<0.05) between fixed and removable appliances indicated patients; found in the matter of the expectation of having a dental x-ray examination at the first visit, the benefits teeth alignment treatment, ease the mastication process, increase the career opportunities, and provide social confidence. Expectations between female and male patients also showed a significant difference, though only found in the benefits of orthodontic treatment to ease the mastication process (p<0.05). Conclusions: There are differences in several aspects of patients’ expectations of orthodontic treatment, with a higher expectation value was found in fixed orthodontic appliances indicated patients.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126118282","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":"Potensi ekstrak sutra laba-laba Argiope modesta 5% sebagai bahan antiinflamasi pada luka gingiva tikus wistarPotential of 5% spider silk extract of Argiope modesta as an anti-inflammatory agent in the gingival wound of Wistar rats","authors":"Nadie Fatimatuzzahro, R. Prasetya, S. Puri","doi":"10.24198/pjdrs.v5i2.34419","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.34419","url":null,"abstract":"","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"211 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123765744","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":"Pengaruh ekstrak biji alpukat (Persea americana Mill.) terhadap waktu perdarahan pada luka potong ekor mencit (Strain Balb-c)Effect of avocado seed extract (Persea americana Mill.) on bleeding time in mice tail cuts (Balb-c)","authors":"Mulia Widya Winiswara, B. Yuwono, Winny Adriatmoko","doi":"10.24198/pjdrs.v5i2.34613","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.34613","url":null,"abstract":"","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123816381","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":"Daya antibakteri fraksi etil asetat daun kemangi (Ocimum basilicum) terhadap Streptococcus mutans ATCC 25175 pada clear retainer secara in vitroAntibacterial potential of the ethyl acetate fraction of basil (Ocimum basilicum) leaves on Streptococcus mutans ATCC 25175 on a clear retainer","authors":"I. A. Evangelina, Fuccy Utamy Syafitri, Endah Mardiati, A. Laviana","doi":"10.24198/pjdrs.v5i2.28065","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.28065","url":null,"abstract":"Introduction: Orthodontic appliances can affect the oral cavity ecosystem by increasing the number of Streptococcus mutans bacteria. Clear retainer is an orthodontic appliance that requires sterilisation prior to usage. The basil plant (Ocimum basilicum) was developed as an alternative natural sterilisation material. This study was aimed to analyse the antibacterial potential by examining the inhibitory zone, minimum inhibitory concentration (MIC), minimum killing concentration (MKC), and count the number of Streptococcus mutans bacteria on clear retainers that have been sterilised with ethyl acetate fraction of basil leaves and chlorhexidine. Methods: This research was an experimental laboratory that used the 5% basil ethyl acetate fraction and 2% chlorhexidine as control. The population and sample were one ose of Streptococcus mutans ATCC 25175. Examination of the inhibitory zone and the number of colonies was performed on agar media with cultured bacteria after being incubated at 37°C for 48 hours. Microdilution testing was performed using the microdilution method using a 96 microplate incubated at 37°C for 48 hours. Measurement of MIC and MKC was conducted using a spectrophotometer on an ELISA reader. The results of the study were analysed with the t-test. Results: There was an inhibitory zone found in the group of basil with a concentration of 5% and the control group (2% chlorhexidine). MIC and MBC of basil leave at 3125 ppm and 6250 ppm, while chlorhexidine at 3,125 ppm and 6,250 ppm, respectively. Statistical t-test results showed no significant difference in the decreasing number of Streptococcus mutans colonies after sterilisation with basil leaves and chlorhexidine. Conclusions: The ethyl acetate fraction of basil has antibacterial potential on Streptococcus mutans, as seen by the presence of an inhibitory zone during the MIC and MKC examination and decreasing number of bacterial colonies on agar media.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123880266","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":"Distribusi variasi suspek kista dentigerous molar ketiga pada radiograf panoramik berdasarkan usia, jenis kelamin, dan lokasi Variation distribution of suspected third molar dentigerous cysts on panoramic radiograph by age, sex, and site","authors":"Salsabila Yasmine, R. Firman, L. Epsilawati","doi":"10.24198/pjdrs.v5i2.28254","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.28254","url":null,"abstract":"Introduction: Radiological variations of dentigerous cysts consist of three types, central, lateral, and circumferential types. Panoramic radiographs are used because indicated for viewing lesions required a wide range of jaws. Dentigerous cysts are frequently discovered incidentally in routine dental radiological examinations. The study was aimed to determine the variation of third molars dentigerous cysts based on age, sex, and site. Methods: This research was descriptive with a cross-sectional approach. The population was panoramic radiographs of suspected third molar dentigerous cysts lesions during 2016-2018 at the Dentomaxillofacial Radiology Installation of Universitas Padjadjaran Dental Hospital. The sampling method used was purposive sampling, which obtained the total sample of 36 radiographs. Results: The highest variation of suspected dentigerous cysts was the central type (77.78%), especially in the late adolescent age group. The central type dentigerous cysts was found in the age group of 19 to 25 years, especially in women (58.30%) located in the maxilla (61.11%). Conclusions: The most found variation of suspected third molar dentigerous cysts found at the Dentomaxillofacial Radiology Installation of Universitas Padjadjaran Dental Hospital is the central type. It is found in the late adolescent age group (19 to 25 years) and occurs mainly in women at the upper jaw.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129662519","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":"Efek paparan gas ozon terhadap mikroba saliva rongga mulut secara in-vitroEffects of ozone gas exposure on oral saliva microbes in-vitro","authors":"G. Wibisono, R. Boedi, Suryanelis Suryanelis","doi":"10.24198/pjdrs.v5i2.33287","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.33287","url":null,"abstract":"Introduction: Saliva is a source of infection spread during dental treatment, which produces bioaerosols. Aseptic procedures need to be carried out to control bioaerosols to reduce infection risk. Various widespread aseptic materials hold specific advantages and disadvantages. Therefore, innovation of other materials is needed to achieve aseptic conditions effectively and efficiently. One of the innovative ideas is the use of ozone gas for various aseptic procedures in dental clinics. This study was aimed to analyse the effect of ozone gas exposure on oral saliva microbes in-vitro. Methods: The study was conducted with a sample of 60 ml of mouthwash residue from 15 volunteers, which was distilled for 60 seconds, then diluted with saline until the volume reached 100 ml. A total of 384 grams of ozone gas flowed into this solution for 120 seconds. A total of 20 ml of sample solution was poured evenly in plate count agar (PCA) media and incubated for 24 hours for the group before being treated with ozone gas (pre-test group) and after treatment (post-test group). Research data was the number of microbial colonies (CFU) that grew on PCA media. Research data were analysed by the Wilcoxon test. Results: The mean number of microbial colonies in the pre-test group was 4.36 ± 0.17 and the post-test group 2.40 ± 0.3. The Wilcoxon test results showed that the number of microbial colonies decreased significantly (p<0.05). Ozone gas exposure for 120 seconds reduced microbial counts by an average of 55%. However, some of the microbes survived, presumably due to biological variability or resistance to ozone. Conclusions: Ozone gas has the effect of reducing the number of salivary microbial colonies.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124532925","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":"Uji sitotoksisitas mikrofiber PMMA dan PMMA-Silika wetspinning pada kultur sel primer L-929 sebagai aplikasi penguat jembatan gigi direkCytotoxicity test of PMMA and PMMA-Silica wet spinning microfibers in L-929 primary cell culture as a direct dental bridge reinforcement application","authors":"N. Djustiana, Yanwar Faza, A. Hardiansyah","doi":"10.24198/pjdrs.v5i2.36304","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.36304","url":null,"abstract":"Introduction: Direct dental bridge consists of a fiber reinforcement component and a composite resin matrix component. The use of target cells for the cytotoxicity test of dental fiber materials is generally performed by experimental in-vitro tests to determine the clinical relevance of the test. This study was aimed to examine the cytotoxicity of PMMA and PMMA-silica wet spinning microfibers with different parameters on the primary cell culture (cell line) of L-929 fibroblasts. Methods: The research design was descriptive qualitative. Primary L-929 fibroblast cells were exposed to PMMA and PMMA-silica microfibers consecutively for 1, 4, and 7 days. Cytotoxicity test was performed using the MTT Assay. Parameters of PMMA and PMMA-silica microfibers used were concentration and flow rate, then divided into several research groups and named as follows: PMMA microfiber vertical system 250ml/hour with a concentration in %: 0.75(A); 1(B); 1.25(C); PMMA-silica microfiber vertical system with the speed of 200 ml/hour (D), 250 ml/hour (E), 300 ml/hour (F) and PMMA microfiber with rotation system 200 ml/ hour with a concentration in % 0.75(G );1(H), 1,25(I); PMMA-silica microfiber rotation system with concentrations of 200ml/hour (J), 250ml/hour (K), and 300 ml/hour (L). Results: In-vitro test of the L-929 cell picture showed no primary fibroblast cells that died. The cell line growth curve of each microfiber parameter shows that the cells can proliferate during the incubation period and show a positive trend of cell growth. Conclusions: PMMA and MMAsilica wet spinning microfibers did not show any toxicity to the growth of the L-929 fibroblast cell line, so they have potential as reinforcement applications for direct dental bridges.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"50 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128949295","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":"Analisis implementasi kebijakan Siskeshanneg menghadapi ancaman faktual pandemi Covid-19 di Ladokgi R.E. MartadinataAnalysis of the National Defense Health System (Siskeshanneg) policy implementation on the Covid-19 pandemic factual threat at RE Martadinata Naval Dentistry Institute (Ladokgi)","authors":"Sugeng Winarno, Ganesha Wandawa, Suhardjo Sitam","doi":"10.24198/pjdrs.v5i2.33356","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.33356","url":null,"abstract":"Pendahuluan: Sistem Kesehatan Pertahanan Negara (Siskeshanneg) adalah totalitas sumber daya bidang kesehatan yang dapat digunakan secara terarah dan terpadu untuk menghadapi ancaman bidang kesehatan. Pandemi COVID-19 merupakan manifestasi ancaman bidang kesehatan yang memerlukan Siskeshanneg untuk menghadapinya. Hingga saat ini implementasi kebijakan ini masih terjadi permasalahan sehingga mempengaruhi kesiapsiagaan institusi dalam menghadapi suatu bencana. Penelitian ini bertujuan untuk menggambarkan kesiapsiagaan Ladokgi R.E. Martadinata dalam menyiapkan pelayanan kesehatan yang bermutu dan menjamin keselamatan pasien pada masa pandemik COVID-19. Metode: Penelitian menggunakan metode deskriptif kualitatif. Pengumpulan data melalui wawancara mendalam observasi dan penelaahan dokumen. Pemilihan informan melalui teknik purposive sampling. Validasi data dilakukan triangulasi terhadap sumber metode dan teori. Hasil: Gambaran proses implementasi Siskeshanneg di Ladokgi R.E. Martadinata memperlihatkan komunikasi menggunakan jaring fungsi komando sumber daya bidang personel kekuatannya berkurang bidang anggaran dilakukan refocusing pada kegiatan terkait penanggulangan COVID-19 pemenuhan sarana dan prasarana ruangan sesuai protokol kesehatan dan pembagian zonasi struktur birokrasi tidak terfragmentasi serta disposisi pimpinan dan anggota berkomitmen penuh dan sesuai perintah. Faktor penghambat meliputi penyiapan sarana dan prasarana membutuhkan waktu 3 bulan kecemasan pada sebagian anggota dan pasien takut terpapar COVID-19. serta harga logistik kesehatan yang melambung. Simpulan: Ladokgi R.E. Martadinata dapat memberikan pelayanan kesehatan dengan mempertahankan mutu dan keselamatan pasien selama pandemik COVID-19 dengan menerapkan komunikasi fungsi komando refocusing anggaran struktur birokrasi tidak terfragmentasi serta disposisi pimpinan dan anggota berkomitmen tinggi hambatan kecemasan diatasi dengan edukasi kepada anggota maupun pasien. Introduction: The National Defense Health System (Siskeshanneg) is the totality of health sector resources that can be used in a directed and integrated manner to deal with threats in the health sector. The COVID-19 pandemic is a manifestation of a health sector threat that requires the National Defense Health System implementation. However, until now implementation of this policy is still experiencing problems that affect institutions' preparedness in the face of a disaster. This study was aimed to describe the preparedness of RE Martadinata Naval Dentistry Institute (Ladokgi) to prepare quality health services and ensure patient safety during the COVID-19 pandemic. Methods: The study used a qualitative descriptive method. Collecting data through in-depth interviews observation and document review. Selection of informants through purposive sampling technique. Data validation was carried out by triangulation of sources, methods and theories. Results: An overview of the National Defense Health System implementation ","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116085317","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":"Akurasi ukuran tinggi slot bracket dan diameter kawat ortodonti dari beberapa produkAccuracy of bracket slot heights and various orthodontic wire diameters","authors":"H. P. S. Effrianto, E. Siregar, M. K. Purwanegara","doi":"10.24198/pjdrs.v5i2.32274","DOIUrl":"https://doi.org/10.24198/pjdrs.v5i2.32274","url":null,"abstract":"Introduction: Different orthodontic brackets and wire products are available in the market; thus, orthodontists must care-fully choose the products used. The bracket slot height and the wire diameter on the package label may differ from the ac-tual size, affecting tooth movement during orthodontic treatment. The purpose of the study was to analyse the accuracy of the bracket slots height and the wire diameter of 3M/Unitek, Ormco, and Dentaurum brands. Methods: This research was analytical laboratory observations with a cross-sectional design. The research sample consisted of 30 maxillary incisor brackets with 0.022-inch slots and 45 wires measuring 0.019 x 0.025 inches of 3M/Unitek, Ormco, and Dentaurum brands. The measurement of bracket slot height and orthodontic wire diameter was conducted using a Discovery V12 Stereoscope Microscope and related software. Results: The mean value of Ormco slot height measurement results was 0.488 mm, 3M/Unitek was 0.491 mm, and Dentaurum was 0.538 mm. The standard deviation of the mean slot bracket height was 0.001 inches. The average value of wire diameter of Ormco in the form of wire height was 0.413 mm, and the wire width was 0.496 mm; the wire height of 3M/Unitek was 0.413 mm, and the wire width was 0.500 mm; the wire height of Dentaurum was 0.419 mm, and the wire width was 0.510 mm. Conclusions: There is a difference in the mean size of the bracket slot height and the orthodontic wire diameter of 3M/Unitek, Ormco, and Dentaurum brands, between the measurement results and the product knowledge.","PeriodicalId":394272,"journal":{"name":"Padjadjaran Journal of Dental Researchers and Students","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127492648","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}