Bulletin of Tokyo Dental College最新文献

{"title":"Effects of Chewing Gum Base on Oral Hygiene and Mental Health: A Pilot Study.","authors":"Akane Takenouchi,&nbsp;Yoji Saeki,&nbsp;Etsuyo Otani,&nbsp;Minji Kim,&nbsp;Asami Fushimi,&nbsp;Yukiko Satoh,&nbsp;Yumiko Kakegawa,&nbsp;Hiroe Arai,&nbsp;Nanako Taguchi,&nbsp;Takashi Matsukubo","doi":"10.2209/tdcpublication.2020-0009","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0009","url":null,"abstract":"<p><p>The purpose of the present study was to clarify the long-term effects of frequent chewing of unflavored and odorless gum (hereafter, gum base) on oral hygiene and mental health. This single-arm study, which started with a 4-week control and ended with a 4-week intervention period, was conducted in two phases: one in 2017 and one in 2018. The participants comprised 36 dental hygiene students (17 in 2017, 19 in 2018). During the intervention period, all participants were required to chew a piece of gum base 7 times a day for 10 min each time. The unstimulated salivary flow rate and masticatory efficiency were measured and chewing number counted. Two questionnaires －the Profile of Mood States, second edition (POMS2) and the 30-item General Health Questionnaire (GHQ-30)－ were administered to assess mental health. In both phases, the unstimulated salivary flow rate showed a significant increase after the intervention period (p<0.05). In 2017, the GHQ-30 scores and masticatory efficiency showed a tendency toward a negative correlation after the intervention period (r=－0.4647, p=0.06). In 2018, a significant negative correlation was observed between chewing number and the POMS2 scores after the intervention period (r=－0.6296, p<0.01). These findings suggest that frequent chewing of gum base increases unstimulated salivary flow rate. However, no significant change was observed in the mental health.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"62 1","pages":"7-14"},"PeriodicalIF":0.5,"publicationDate":"2021-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25367688","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":"A Case of Mandibular Prognathism with Generalized Aggressive Periodontitis and Crowding.","authors":"Takenobu Ishii,&nbsp;Hiroaki Goto,&nbsp;Akira Watanabe,&nbsp;Shigeki Yamamoto,&nbsp;Hiroko Onodera,&nbsp;Shuji Yoshida,&nbsp;Yasushi Nishii","doi":"10.2209/tdcpublication.2020-0012","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0012","url":null,"abstract":"<p><p>Aggressive periodontitis during adolescence has a poor prognosis due to rapid alveolar bone resorption. Few studies have investigated long-term follow-up after surgical orthodontic treatment performed in conjunction with that for invasive periodontitis. Here, we report a case of mandibular prognathism accompanied by generalized aggressive periodontitis and crowding. A 31-year-old woman was referred to our department for treatment of masticatory dysfunction due to reverse overjet. The patient exhibited a class III molar relationship, protrusion of the ANB of －6.0°, and severe maxillary crowding. Initial periodontal examination revealed deep periodontal pockets and extensive inflammation. Mandibular prognathism accompanied by generalized aggressive periodontitis and crowding was diagnosed. Therefore, it was necessary to adopt an interdisciplinary approach involving surgical, orthodontic, and periodontal treatment. Prior to commencement of orthodontic treatment, plaque control, scaling, and root planing of all teeth were performed by a periodontist to suppress inflammation and reduce probing depth. During pre-surgical orthodontic treatment, the maxillary first premolars were extracted to reduce crowding of the maxillary incisors. To correct the mandibular prognathism, the mandible was repositioned by sagittal split ramus osteotomy. Proper occlusion of the incisors and maximum intercuspation were achieved by post-surgical orthodontic treatment. After completion of active orthodontic treatment, acceleration of inflammation was observed together with aggravated resorption of the alveolar bone surrounding the molars. However, reduction of probing depth and inflammation were observed after scaling and root planing. The surgical-orthodontic treatment time was 1 year and 11 months, which was followed by a 2-year retention period. There was no tooth loss due to periodontitis, and an overall satisfactory outcome was achieved.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"62 1","pages":"27-39"},"PeriodicalIF":0.5,"publicationDate":"2021-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25367689","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":"Surgical Orthodontic Treatment in Case of Severe High Angle Skeletal Class II Malocclusion and Mandibular Retrusion.","authors":"Chie Tachiki,&nbsp;Masae Yamamoto,&nbsp;Takashi Takaki,&nbsp;Yasushi Nishii","doi":"10.2209/tdcpublication.2020-0022","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0022","url":null,"abstract":"<p><p>This report describes a patient with severe high angle class II malocclusion and mandibular retrusion in whom surgical orthodontic treatment to prevent an increase in ramus height resulted in a significant improvement in esthetics and long-term stability. The patient was a woman aged 30 years 5 months who presented with the chief complaint of maxillary protrusion. She had a convex facial type, a chin button on lip sealing, and a gummy smile. Cephalometric analysis revealed a normal maxilla anterior-posterior position, but significant mandibular retrusion with pronounced clockwise rotation. The anterior maxillary tooth axis was standard, but labially inclined in the mandible. Based on these findings, the diagnosis was skeletal class II high angle malocclusion and mandibular retrusion. The proposed treatment plan comprised 2-jaw surgery with premolar extraction. Le Fort I osteotomy, in particular, was planned in the maxilla to move the ANS upward by 3.0 mm and the PNS downward by 3.0 mm. Sagittal split ramus osteotomy (SSRO) was planned to adjust the mandible and move the mandible forward by 10.0 mm. To prevent postoperative relapse, the short lingual split method was used in performing the SSRO. The mandible was split to minimize stretching of the median pterygoid muscle. Postoperatively, the ANS, PNS, and pogonion showed movement of 2.0 mm upward, 3.0 mm downward, and 8.0 mm forward, respectively. Additionally, lip closure was now natural, and the gummy smile had markedly improved. At 6 years postoperatively, there has been no change skeletally or dentally. Follow-up is being continued to monitor further progress.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"243-253"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38589765","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":"Surgical Treatment of Furcation Involvement Associated with Recurrence of Aggressive Periodontitis: A Case Report.","authors":"Daisuke Irokawa,&nbsp;Takahiro Bizenjima,&nbsp;Kentaro Imamura,&nbsp;Satoru Inagaki,&nbsp;Atsushi Saito,&nbsp;Sachiyo Tomita","doi":"10.2209/tdcpublication.2020-0020","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0020","url":null,"abstract":"<p><p>Here, we report a case of generalized chronic periodontitis with furcation involvement that was treated successfully by means of surgical intervention. The patient was a 43-year-old man requesting treatment for periodontal disease. An initial examination revealed 42% of sites with a probing depth of ≥4 mm and 42.9% of sites with bleeding on probing. The maxillary molars showed varying degrees of furcation involvement. Radiographic examination revealed bone resorption in the molar and mandibular anterior teeth regions. Microbiological examination of subgingival plaque revealed the presence of Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans, and Tannerella forsythia. The patient's oral health-related quality of life (OHRQL) was also assessed. Based on a clinical diagnosis of severe chronic periodontitis, initial periodontal therapy was performed. Plaque control, scaling and root planing, extraction, temporary fixed restoration, occlusal adjustment, and root canal treatment were implemented. Following reevaluation, open flap debridement was performed at selected sites. Root resection was performed on the distal root of #16. Prosthetic treatment was then initiated for recovery of oral function. After confirmation of appropriate occlusion and cleanability, the patient was placed on supportive periodontal therapy. Root resection improved cleanability. This clinical improvement has been adequately maintained over a 2-year period. The patient's OHRQL score showed a slight deterioration during the supportive periodontal therapy OK period, however. This indicates the need for further careful monitoring of periodontal conditions, as well as of how they are perceived by the patient themselves.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"265-273"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38589764","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":"Extraction of Maxillary Central Incisors with Short Roots for Orthodontic Treatment of Maxillary Protrusion and Open Bite.","authors":"Toshihiko Yasumura,&nbsp;Yumi Kashiwagi,&nbsp;Hidenori Katada,&nbsp;Yasushi Nishii","doi":"10.2209/tdcpublication.2020-0016","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0016","url":null,"abstract":"<p><p>This case report describes the unusual choice of extraction of maxillary incisors with short roots as part of an orthodontic treatment plan. The patient was a 20-year-old woman referred to our department in whom the diagnosis was maxillary protrusion and open bite. Both of the maxillary central incisors had short roots. Two treatment options were considered. The first involved extraction of the 4 first premolars with the aim of improving dentoalveolar protrusion and crowding. If preservation of the central incisors subsequently became difficult due to root resorption, prosthetic options were to be considered. The second treatment option involved extraction of the maxillary central incisors with short roots and the mandibular first premolars. The second treatment option was selected as survival of the central incisors following orthodontic movement was uncertain and the patient also wanted to minimize the risk of future extractions and the use of prosthetics. Active treatment was performed over a span of 31 months, and circumferential type retainers were used on both arches for retention. For such treatment to be successful, careful diagnosis and orthodontic treatment planning must be taken to ensure the anterior dental esthetics are properly restored.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"255-264"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38592350","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":"Treatment of Chronic Periodontitis with Recombinant Human Fibroblast Growth Factor-2 and Deproteinized Bovine Bone Mineral in Wide Intrabony Defects:12-month Follow-up Case Series.","authors":"Wataru Yoshida,&nbsp;Takahiro Takeuchi,&nbsp;Kentaro Imamura,&nbsp;Fumi Seshima,&nbsp;Atsushi Saito,&nbsp;Sachiyo Tomita","doi":"10.2209/tdcpublication.2019-0050","DOIUrl":"https://doi.org/10.2209/tdcpublication.2019-0050","url":null,"abstract":"<p><p>Clinical use of 0.3% recombinant human fibroblast growth factor (rhFGF)-2 for periodontal regeneration received formal approval in Japan in 2016. The combination of growth factor and bone graft material is used to enhance periodontal healing in regenerative therapy. The exact effects of combination therapy on periodontal healing remain unknown, however. Here, we report three cases of chronic periodontitis treated with the combination of rhFGF-2 and deproteinized bovine bone mineral (DBBM). Following initial periodontal therapy, periodontal regenerative therapy using rhFGF-2 in combination with DBBM was performed to treat wide intrabony defects. Periodontal parameters and radiographic bone fill were reevaluated at 3 months, 6 months, and 1 year postoperatively. Oral health-related quality of life (OHRQL) was assessed as a patient-reported measure of outcome. At 1 year postoperatively, probing pocket depth and clinical attachment level showed a significant improvement in comparison with at baseline. An improvement was also noted in radiographic evidence of bone fill and total OHRQL scores. Combination therapy yielded clinically favorable results in the present cases.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"231-241"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38592347","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":"New Device for Securing Nasotracheal Intubation Tube During Oral and Maxillofacial Surgery.","authors":"Kyotaro Koshika,&nbsp;Tatsuki Hoshino,&nbsp;Yasunori Shibata,&nbsp;Takashi Ouchi,&nbsp;Toshiya Koitabashi","doi":"10.2209/tdcpublication.2020-0003","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0003","url":null,"abstract":"<p><p>Since 2018, we have been using a 3D printer to fabricate a proprietary device for fixing nasotracheal tubes. The aim of this retrospective study was to investigate the impact of this nasotracheal intubation (NTI) fixation device. It has been used in 335 patients undergoing general anesthesia for oral and maxillofacial surgeries. No necrosis or permanent tissue damage was observed, and none of the patients developed complications requiring treatment. No unintentional tube-related incidents such as extubation, dislocation of the tube, or disconnection between the tube and the artificial respiration circuit occurred either. This fixation device offers three advantages: safety, no impediment to surgery, and minimal invasiveness. Of these, safety is the most important. The high degree of immobilization it offers makes it possible to prevent injury to the nasal ala when the tracheal tube is tugged to the cranial side. There is also a high degree of immobilization at the connection site between the tracheal tube and anesthesia circuit, making it possible to prevent disconnection due to intraoperative pressure. In addition, safety during fixation is less likely to differ depending on the degree of proficiency of the individual anesthesiologist. The presence of a groove through which the sampling tube of the capnometer can be passed makes it possible to prevent the problem of flexion of the sampling tube, rendering detection impossible during surgery. Thus, use of this fixation device offers the potential to improve immobilization of the tracheal tube and increase intraoperative safety. However, there remain several problems that need to be addressed with this novel device. Further improvements aimed at enhancing safety are planned, therefore.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"275-279"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38592348","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":"Three-Dimensional Measurements of Pharyngeal Airway in Patients with Unilateral Cleft Lip and Palate.","authors":"Emiko Kimura,&nbsp;Tomoko Obata,&nbsp;Shuto Kitai,&nbsp;Takenobu Ishii,&nbsp;Teruo Sakamoto,&nbsp;Miki Watanabe,&nbsp;Akira Watanabe,&nbsp;Masato Narita,&nbsp;Yoko Nakano,&nbsp;Nobuo Takano,&nbsp;Kenji Sueishi,&nbsp;Yasushi Nishii","doi":"10.2209/tdcpublication.2020-0019","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0019","url":null,"abstract":"<p><p>The aim of this study was to investigate 3-dimensional (3D) airway volume in patients with unilateral cleft lip and palate (UCLP) using computed tomography (CT). The study population comprised 15 UCLP patients (UCLP group) scheduled to receive alveolar bone grafts and 15 with impacted teeth (control group). The clinical requirements for a CT scan were met in both groups. Measurements were recorded from 3D reconstructions of Digital Imaging and Communications in Medicine data obtained from the CT images. Airway volume, cross-sectional area, and linear and angular measurements were recorded. Airway volume and cross-sectional area showed no significant difference between the two groups. The narrowest section of the airway in the UCLP group was tighter than that in the control group, however (p=0.017). The results of this study suggest that this difference in the measurements of the narrowest section of the airway is involved in the particular maxillofacial morphology found in UCLP patients.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"213-219"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38592351","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":"Root Coverage with Connective Tissue Graft in Patients with Thin Periodontal Biotype: A Case Series with 12-month Follow-up.","authors":"Kentaro Imamura,&nbsp;Yuko Mashimo,&nbsp;Atsushi Saito","doi":"10.2209/tdcpublication.2020-0015","DOIUrl":"https://doi.org/10.2209/tdcpublication.2020-0015","url":null,"abstract":"<p><p>Preoperative gingival thickness is an important factor in the success of complete root coverage. Here, two cases are reported in which a biotype probe was used to assess the periodontal biotype before performance of a root coverage procedure. Clinical examinations were performed at baseline and at 3, 6, and 12 months postoperatively. The following clinical parameters were evaluated: probing depth, recession height, clinical attachment level, bleeding on probing, and width of keratinized gingiva. At baseline and at 12 months postoperatively, periodontal biotype was estimated using the biotype probe. The root coverage esthetic score was assessed to determine esthetic outcome at baseline and at 3, 6, and 12 months postoperatively. The periodontal biotypes in the mandibular central and lateral incisors were judged to be thin. These teeth presented with Miller Class II gingival recession after orthodontic therapy. Gingival recession was treated with a coronally advanced flap and autogenous connective tissue graft. In both cases, improvements in all clinical parameters and root coverage esthetic scores were evaluated at 3, 6, and 12 months postoperatively. The treated recession showed 100% root coverage. The periodontal biotype changed from one that was thin to one that was thick at the surgical sites. In both the present cases, objective preoperative assessment of the periodontal biotype allowed the appropriate surgical procedure to be selected.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 4","pages":"221-229"},"PeriodicalIF":0.5,"publicationDate":"2020-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38592349","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":"Differences in Elderly and Non-Elderly Outpatient Subjective Evaluation of \"Easy-to-Eat Meals\" after Dental Treatment.","authors":"Mai Ohkubo,&nbsp;Takayuki Ueda,&nbsp;Keina Miura,&nbsp;Hiroki Sugito,&nbsp;Mikiko Kawaguchi,&nbsp;Keisuke Ono,&nbsp;Fumi Seshima,&nbsp;Toshiyuki Morioka,&nbsp;Saki Uchiyama,&nbsp;Mitsutaka Yoshida,&nbsp;Yasutomo Yajima","doi":"10.2209/tdcpublication.2019-0009","DOIUrl":"https://doi.org/10.2209/tdcpublication.2019-0009","url":null,"abstract":"<p><p>Dental treatment improves the experience of eating by healing illnesses in the oral cavity or through the installation of special devices. However, mastication can often prove difficult for short periods of time after dental treatment, potentially limiting the types of food that can be consumed. Therefore, we proposed a highly nutritious meal strategy for dental outpatients (hereafter, \"easy-to-eat meals\"). We previously reported patients' subjective assessment of these easy-to-eat meals as determined through a questionnaire survey. The purpose of the present study was to investigate how differences in age affected such assessments. The study participants comprised patients scheduled to undergo dental treatment. They were divided into 2 groups: one of patients aged above and one of those aged below 70 years. All were required to consume provided easy-to-eat meals at the dental hospital directly after treatment and then answer a questionnaire. The questionnaire included items on patient satisfaction with the meals, taste, portion size, convenience, reduction in discomfort, and whether they would consume them again. The format of the questionnaire was a visual analog scale (VAS), ranging from 0 (negative) to 10 (positive). Portion size was to be rated on a scale from 0 (\"Not enough\") to 10 (\"Too much\"), with 5 being \"Just right\". Correlations between the questionnaire items were investigated to determine how they influenced each other. The VAS average for \"Reduction in discomfort\" was 8.45±1.39 in the non-elderly group and 6.07±2.92 in the elderly group, and the difference was significant (p=0.02); the VAS average for \"Taste\" was 6.49±2.32 in the non-elderly group and 4.91±0.98 in the elderly group, and the difference was significant (p=0.04). The results of this study suggest that providing such meal plans as nutritional guidance after dental treatment can influence quality of life in elderly patients.</p>","PeriodicalId":45490,"journal":{"name":"Bulletin of Tokyo Dental College","volume":"61 3","pages":"161-168"},"PeriodicalIF":0.5,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38268538","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}