Revista Cientifica Odontologica最新文献

{"title":"Dental traumatic avulsions: an analysis of the performance and maintenance of replanted teeth in the first-year post-injury.","authors":"Bhárbara Marinho Barcellos, Melissa Feres Damián, Talita Freitas da Silva, Marcos Augusto Lourenco da Silva, Leticia Kirst Post, Josué Martos, Cristina Braga Xavier","doi":"10.21142/2523-2754-1302-2025-238","DOIUrl":"10.21142/2523-2754-1302-2025-238","url":null,"abstract":"<p><strong>Aim: </strong>This study aims to examine the factors influencing the decision to perform replantation following avulsion of permanent teeth, as well as factors affecting the maintenance of replanted teeth in the first-year post-injury.</p><p><strong>Material and methods: </strong>This retrospective analysis involved examining dental records and periapical radiographs of patients with avulsed permanent teeth. Demographic information, details regarding traumatic lesions, and treatment specifications were extracted from dental records. Radiographs obtained during the initial appointment were used to assess root maturity, and the ones at the one-year follow-up examination evaluated the maintenance of replanted teeth, along with the presence of endodontic therapy, bone loss, periapical lesions, and inflammatory or replacement resorption. Chi-square tests and hierarchical Logistic Regression Analysis were employed to identify factors associated with replantation success and maintenance of replanted teeth after one year.</p><p><strong>Results: </strong>Data from 106 patients and 154 avulsions were collected according to predefined criteria. Of the 154 teeth, 102 (76.2%) underwent replantation. Patients over 13 years of age at the moment of the traumatic injury, those with avulsion of more than one tooth, and those with associated alveolar bone fractures were less likely to undergo replantation. In the first-year post-injury, 71 of the 102 replanted teeth (70.3%) were retained. Tooth loss within the first-year follow-up was more likely in male patients, individuals over 13 years old at the moment of the avulsion, and those with associated alveolar bone fractures. <b>Conclusions:</b> Patient age and alveolar bone fractures during traumatic injuries were identified as factors associated with both replantation outcomes. Patient gender influenced the presence of the tooth in the first-year post-injury, while avulsion of more than one tooth showed an association with replantation performance.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 2","pages":"e238"},"PeriodicalIF":0.0,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12217062/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144561252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The requirement for methodologically well-designed research in dentistry.","authors":"Luis Ernesto Arriola Guillén","doi":"10.21142/2523-2754-1301-2025-225","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-225","url":null,"abstract":"","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e225"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994093/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004086","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Attitudes and behaviors related to oral health in young paraguayan aspiring soldiers. A cross-sectional study].","authors":"Clarisse Díaz-Reissner, Diego Ávalos González, Maria Silvana Carabajal, Maria Elida Quintana-Molinas, Milner I Morel-Barrios","doi":"10.21142/2523-2754-1301-2025-226","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-226","url":null,"abstract":"<p><strong>Objective: </strong>To associate attitudes and behaviors related to oral health with the experience of dental caries in trainees of the Paraguayan Air Force's Airborne Brigade in the year 2023.</p><p><strong>Materials and methods: </strong>The design was cross-sectional. The sample comprised 100 soldiers. The Hiroshima University Dental Behavior Inventory (HU-DBI) was applied to measure attitudes and behaviors related to oral health, and the experience of caries was assessed using the DMFT index. The Pearson Chi-square test was used to compare the distribution of HU-DBI and DMFT according to background, and Fisher's exact test was applied to associate the experience of caries with attitudes and behaviors at a 95% confidence level.</p><p><strong>Results: </strong>: Regarding the assessment of attitudes and behaviors, the average score was 6.33 (SD=1.97), classified as \"fair,\" with a minimum score of 2 and a maximum of 11. The DMFT index was 5.45 (SD=3.9). A homogeneous distribution was found between attitudes and behaviors (p=0.197), and there was no association between caries experience and background (p=0.615). No association was found between caries experience and attitudes and behaviors (p=0.577).</p><p><strong>Conclusion: </strong>The attitudes and behaviors regarding oral health were fair, and the experience of dental caries measured by the DMFT index was low. No association was found between the two variables.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e226"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994095/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144030517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Impact of dental anxiety on the oral health-related quality of life of older adults in a rural area of Peru].","authors":"Soledad Jimena Juárez Pacheco, María Alejandra Juárez Pacheco, Gabriela Mariana Castro-Núñez, Enrique Manuel de Los Ríos Fernández, Mauro Henrique Nogueira Guimarães de Abreu, Wilfredo Gustavo Escalante-Otárola","doi":"10.21142/2523-2754-1301-2025-229","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-229","url":null,"abstract":"<p><strong>Objective: </strong>To determine the prevalence of oral health problems and dental anxiety in rural older adults, and their impact on oral health-related quality of life (OHRQoL).</p><p><strong>Methods: </strong>A cross-sectional descriptive and analytical study was conducted among older adults in San Juan de Siguas, Arequipa, involving 64 participants aged 60 and above who provided informed consent. Sociodemographic, clinical, and oral health data were collected through structured interviews, using the Modified Dental Anxiety Scale (MDAS) and the OHIP-5 questionnaire to assess dental anxiety and OHRQoL, respectively. Binary logistic regression was applied to analyze the relationship between dental anxiety and OHRQoL, adjusting for relevant variables.</p><p><strong>Results: </strong>Participants had an average age of 68.5 years, the majority were women (54.7%), and most lacked health insurance (85.9%). All participants had decayed teeth, and 68.8% had experienced tooth loss. Half of the participants exhibited moderate dental anxiety (mean MDAS: 11.6), and the impact on OHRQoL was moderate (mean OHIP-5: 8.4). Logistic regression revealed that each one-unit increase in dental anxiety (MDAS) increased the odds of a greater impact on OHRQoL by 1.49 times. Additionally, participants satisfied with dental care were 4.67 times more likely to report a greater impact<b>.</b></p><p><strong>Conclusions: </strong>Dental anxiety worsens OHRQoL in rural older adults due to access barriers and negative dental care experiences.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e229"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994096/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144004077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Effect of mouthwash with cetylpyridine chloride on the surface microhardness of self-curing, heat-curing and CAD CAM polymethyl methacrylate. In vitro study].","authors":"Karol Milagros Meza Zegarra, Ana Isabel López Flores","doi":"10.21142/2523-2754-1301-2025-227","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-227","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the effect of Vitis CPC Protect mouthwash on the surface microhardness of three types of polymethylmethacrylate (PMMA): self-curing (Alike), thermocuring (Vitalloy) and CAD/CAM (Telium CAD)<b>.</b></p><p><strong>Methodology: </strong>90 PMMA discs were manufactured, divided into three groups of 30 discs, with dimensions of 2 mm thick and 10 mm in diameter. Each group was subdivided into three subgroups (n = 10): The first subgroup to measure baseline microhardness, the second was immersed in distilled water as a control, and the third in Vitis CPC Protect mouthwash. The discs were kept in 20 ml solutions for 6 hours at 37°C, simulating daily use of rinsing twice a day for 6 months. Vickers surface microhardness was measured before and after immersion using a Vickers durometer with a load of 50 g. Subsequently, the data were statistically analyzed using the One-Way ANOVA test and Tukey's Multiple Comparisons test.</p><p><strong>Results: </strong>The initial microhardness values were: self-curing 14.05 ± 0.31, thermocuring 18.00 ± 0.60, and CAD/CAM 20.35 ± 1.80. After immersion in mouthwash, the values were: self-curing 13.81 ± 0.20, thermocuring 17.20 ± 0.38, and CAD/CAM 19.21 ± 0.60. ANOVA analyses and Tukey's test revealed statistically significant differences in the microhardness of thermocured PMMA and CAD/CAM (p < 0.05).</p><p><strong>Conclusion: </strong>The mouthwash with cetylpyridinium chloride affects the surface microhardness of thermally polymerized and CAD/CAM PMMA, with the latter being the more resistant to these effects. However, since the decrease is minimal, the use of mouthwash would not be contraindicated for patients with provisional PMMA restorations.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e227"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994099/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144056723","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Flexural Strength of Resinous Cements: In Vitro Evaluation].","authors":"Socorro Noa-Yarasca, Ana López-Flores","doi":"10.21142/2523-2754-1301-2025-228","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-228","url":null,"abstract":"<p><strong>Objective: </strong>To evaluate the flexural strength of three dental resin cements.</p><p><strong>Materials and methods: </strong>Sixty bars measuring 25x2x2 mm were made of RelyX-U200, Relyx^TM Universal and Duo-Link Universal cements. These bars were divided into 3 groups according to brand (n=20) and were kept in distilled water for 24 hours at 37ºC. The 3-point bending test was carried out, according to ISO 4049, in a universal testing machine at a speed of 0.5 mm/min until fracture. Statistical analysis was performed with the Python statistical package, using the one-way Anova test and Tukey's multiple comparisons test with a confidence level of 95%.</p><p><strong>Results: </strong>Duo-Link Universal cement obtained the highest average with respect to flexural strength (104.7±7.8 MPa). Statistically significant differences were found between the three groups (p< 0.001). These differences were present between Relyx^TM Universal - Duo-Link Universal (p<.001) and Duo-Link Universal - RelyX U200 (p< .001) cements, while no statistically significant differences were found between Relyx^TM Universal and RelyX U200 cements.</p><p><strong>Conclusion: </strong>Duo-Link Universal cement presents greater flexural strength compared to RelyX-U200 and Relyx^TM Universal cements. The results indicate that Duo-Link Universal is ideal for restorations requiring high flexural strength, offering greater clinical durability, especially in areas of greater functional load and extensive restorations such as indirect prostheses or posts.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e228"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994094/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144030425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Revascularization in immature permanent tooth with apical periodontitis using Neoputty MTA. Case report].","authors":"Aleska Irin Cordido Useche, Pedro Rafael Rivero Griman, Mireya Anais Rojas Rocillo","doi":"10.21142/2523-2754-1301-2025-235","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-235","url":null,"abstract":"<p><p>The treatment of young necrotic permanent teeth with open apices represents a challenge for endodontists. Revascularization has emerged as a biologically based treatment alternative that allows the continued development of immature teeth. This procedure requires a hermetic coronal seal with a biocompatible cement. The objective of this work is to present a case of revascularization of an immature tooth with open apices in a 7-year-old patient, in Cvek stage III, with the diagnosis of previously initiated therapy and asymptomatic apical periodontitis, using NeoPUTTY MTA as a cervical barrier. After informed consent, the protocol proposed by Wei was followed in 2 appointments; using calcium hydroxide as intracanal medication in the first appointment, and performing the apical puncture in the second appointment, after an irrigation protocol with passive ultrasonic activation. The cervical barrier was created by compacting NeoPUTTY MTA and covered with TheraCal LC plus glass ionomer and composite resin. The patient was evaluated in 4 post-treatment consultations, at 3 weeks, 6 weeks, 6 months and 1 year; he remained asymptomatic throughout the process and presented progressive radiographic improvement until resolution of the apical lesion, increased thickness of the root walls, decreased apical diameter of the mesial root to approximately 0.5 mm and of the distal root to approximately 1 mm and the formation of a new periodontal ligament space.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e235"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994100/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144040210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Prevalence of dental anomalies in panoramic radiographs of patients aged 10 to 30 from a radiographic center: a cross-sectional study].","authors":"Sergio Ricardo Escuza Gonzalez, Axel Carlos Díaz Álvarez, Carlos Vigo García","doi":"10.21142/2523-2754-1301-2025-231","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-231","url":null,"abstract":"<p><strong>Introduction: </strong>Dental anomalies are associated with developmental problems, affecting facial and dental structures with potential functional, occlusal and aesthetic repercussions. Early detection using panoramic radiographs is crucial for adequate treatment and management of these alterations. Objective: Determine the prevalence of dental anomalies in radiographs in patients treated in a radiological center during the year 2023.</p><p><strong>Materials and methods: </strong>a retrospective, observational and descriptive study was carried out, analyzing 1500 panoramic radiographs. A simple random sampling method was used and various variables such as types and number of anomalies, age, gender, and location in the oral quadrants were evaluated. The Romexis Viewer program was used for image analysis.</p><p><strong>Results: </strong>In the prevalence of dental anomalies of structure, it was observed that enamel hypoplasia and hypercementosis presented a lower number of cases, with a prevalence of 1%. In size anomalies, it was found that microdontia had a prevalence of 10.5%. Also, in eruption anomalies, it was observed that the ectopic position affected 6.7% of cases. On the other hand, in number anomalies, it was observed that agenesis had a prevalence of 5.2%. In morphology anomalies, there were no cases of union, while dilaceration was present in 58.6% of cases. Rhizomicri had a prevalence of 12.4%.</p><p><strong>Conclusions: </strong>Dental anomalies observed in the radiographs of the evaluated patients show variable prevalence rates. The study reaffirms the importance of panoramic radiography in the early detection of dental anomalies, crucial for planning adequate and personalized treatment in dentistry.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e231"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994102/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144064870","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Primary cell culture and characterization of a pleomorphic adenoma. A case report.","authors":"Selenne Romero-Servin, Nancy Leticia Mendoza-Martínez, Francisco Germán Villanueva-Sánchez, Ilse Patricia Rodríguez-Tapia, Aylin Divina Cadena-Galeana, René García-Contreras","doi":"10.21142/2523-2754-1301-2025-234","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-234","url":null,"abstract":"<p><strong>Objective: </strong>This case report aimed to characterize primary pleomorphic adenoma cells obtained from a parotid gland tumor through tissue biopsy, primary cell culture, and immunohistochemical analysis.</p><p><strong>Methods: </strong>A tissue biopsy sample from a 58-year-old patient with pleomorphic adenoma underwent histopathological examination and primary cell culture. The primary cells were characterized through immunohistochemical staining using antibodies against S-100, SMA, Vimentin, and cytokeratin AE1/AE3. Additionally, paraffin-embedded tissue sections were stained using cytokeratin AE1/AE3, Vimentin, Calponin, SMA, S100, and p63.</p><p><strong>Results: </strong>Primary cell culture revealed weak S-100 staining and positive SMA in myoepithelial cells, while Vimentin and AE1/AE3 were negative in all the cell population. In the paraffin-embedded tissue, cytokeratin exhibited strong cytoplasmic and membranous positivity in luminal cells. Vimentin showed cytoplasmic staining in myoepithelial cells. S-100 displayed weak nuclear and strong cytoplasmic immunoreactivity in myoepithelial cells. SMA presented weak membranous positivity in a few myoepithelial cells, and finally, p63 showed nuclear staining in abluminal cells. Calponin showed negative staining in neoplastic cells and stroma.</p><p><strong>Conclusion: </strong>The results showed that primary component of pleomorphic adenoma comprises myoepithelial cells. The identification of cell cultured <i>in vitro</i> is pivotal in comprehending the cellular components of these neoplasms. This comprehensive characterization of primary pleomorphic adenoma cells provides insights into their morphology, immunophenotype, and histological features.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e234"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994098/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144000597","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Periodontal maintenance care compliance at federal qualified health clinics: a pilot study on dental staff' experiences while serving underserved communities.","authors":"Yessenia Valverde Ingersoll","doi":"10.21142/2523-2754-1301-2025-230","DOIUrl":"https://doi.org/10.21142/2523-2754-1301-2025-230","url":null,"abstract":"<p><strong>Objective: </strong>The aim of this study is to determine the patient compliance at Federal Qualified Health Centers and the dental staff actions and experiences in oral health promotion within underserved communities.</p><p><strong>Material and methods: </strong>An online survey was distributed through email via the National Network of Oral Health Access, to professional dental staff, including dentists, dental hygienists, dental assistant, front desk receptionists. Questions covered about management skills on scaling and root planning, knowledge of methods used in periodontal maintenance care recalls, and comprehension of factors that can affect periodontal care compliance. Statistical analysis was done using proportion and frequency.</p><p><strong>Results: </strong>Subjects responded that 66% of patients are irregular compliant to periodontal care. Dental staff use education in periodontal health (25-38%), and behavior management (50%) tools to instruct patients during scaling and root planning. Conversely, receptionists use education in periodontal disease (50%) among prompt check-in, and financial assistance. All dental staff in FQHC, including receptionists, explain benefits of periodontal care and acknowledge concerns to continue patients' maintenance care recalls. For non-compliant patients, all dental staff used actions as visual education and explanation of consequences of lack of care, and receptionists (66%) responded that transferring phone calls was the most effective tool as patients responded better when contacted by their providers.</p><p><strong>Conclusion: </strong>In Federal Qualified Health Centers, active communication with patients and knowledge and education in periodontal disease, by dental staff and front desk receptionists have a favorable influence in patients periodontal care compliance.</p>","PeriodicalId":33326,"journal":{"name":"Revista Cientifica Odontologica","volume":"13 1","pages":"e230"},"PeriodicalIF":0.0,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994097/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144054226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}