The Angle Orthodontist最新文献

Enhanced pendulum appliance utilizing temporary anchorage device-based Nance arch and modified springs for optimized molar distalization control: a case report 利用基于临时锚定装置的南斯弓和改良弹簧优化臼齿远化控制的增强摆锤矫治器：病例报告

The Angle Orthodontist Pub Date : 2024-07-09 DOI: 10.2319/031424-217.1

Chuanxi Sun, Ziqi Zhou, Hui Shi, Ahmed Algahefi, Zhihua Li

{"title":"Enhanced pendulum appliance utilizing temporary anchorage device-based Nance arch and modified springs for optimized molar distalization control: a case report","authors":"Chuanxi Sun, Ziqi Zhou, Hui Shi, Ahmed Algahefi, Zhihua Li","doi":"10.2319/031424-217.1","DOIUrl":"https://doi.org/10.2319/031424-217.1","url":null,"abstract":"\u0000 A 20-year-old female patient with severe maxillary crowding and skeletal Class III malocclusion was successfully treated using an enhanced pendulum appliance. Camouflage treatment was chosen because the patient refused surgical intervention. Detailed examination and analysis revealed that labial inclination of the maxillary anterior teeth could provide the alignment space necessary after tooth extraction in the maxillary arch but it would not be beneficial esthetically and would increase the moment perpendicular to the tooth long axis as well as increase the risk of bone dehiscence. Therefore, lingual inclination of the mandibular anterior teeth was performed. To create space for aligning the maxillary arch, an enhanced pendulum appliance was utilized, in addition to premolar extraction. The enhanced pendulum appliance had one mesial and one distal helix on each spring, exerting opposing forces in the buccolingual direction and reducing the buccolingual inclination of the molars. In addition, miniscrews were integrated into the Nance arch of the enhanced pendulum appliance to provide skeletal anchorage, minimizing the reciprocal movement of anchorage teeth. This modification not only enhanced control over tooth movement but also improved treatment efficiency. During the entire treatment duration of 17 months, substantial improvement in facial and occlusal aspects were noted. Additionally, the patient retained these positive changes until the subsequent 2-year follow-up period.","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":"68 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141664548","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}

引用次数: 0

Orthodontic treatment of a middle-aged patient with periodontally compromised dentition accompanied by pathologic tooth migration 对一名牙周受损并伴有病理性牙齿移动的中年患者进行正畸治疗

The Angle Orthodontist Pub Date : 2024-06-04 DOI: 10.2319/122923-866.1

Harim Kim, Heon Jo, Jung-Yul Cha, Kee-Joon Lee, H. Yu, Sung-Hwan Choi

引用次数: 0

Evaluation of anchorage loss after en masse retraction in orthodontic patients with maxillary protrusion using friction vs frictionless mechanics: randomized clinical trial 使用摩擦力学与无摩擦力学对上颌前突正畸患者进行整体牵引后的锚固力损失评估：随机临床试验

The Angle Orthodontist Pub Date : 2024-05-24 DOI: 10.2319/113023-791.1

Amr Mahmoud Attia, Leena A. Shibl, H. Dehis, Yehya A Mostafa, A. El-Beialy

{"title":"Evaluation of anchorage loss after en masse retraction in orthodontic patients with maxillary protrusion using friction vs frictionless mechanics: randomized clinical trial","authors":"Amr Mahmoud Attia, Leena A. Shibl, H. Dehis, Yehya A Mostafa, A. El-Beialy","doi":"10.2319/113023-791.1","DOIUrl":"https://doi.org/10.2319/113023-791.1","url":null,"abstract":"\u0000 \u0000 \u0000 To evaluate anchorage loss after en masse retraction in bimaxillary dentoalveolar protrusion patients using friction vs frictionless mechanics.\u0000 \u0000 \u0000 \u0000 Thirty patients with bimaxillary dentoalveolar protrusion needing extraction of upper first premolars and en masse retraction with maximum anchorage were included in this two-arm, parallel, single-center, single-blinded randomized clinical trial with a 1:1 allocation ratio using fully sealed opaque envelopes. Friction group retraction utilized elastomeric power chain between miniscrews and hooks crimped mesial to upper canines on 17 × 25 stainless steel archwire. Frictionless group used customized T-loop springs loading upper first molars indirectly anchored to miniscrews. Activation was every 4 weeks until full retraction. The primary outcome assessed was anchorage loss evaluated at cusp tip and root apex of the first molar. First molar rotation, incisor tip and torque, and root resorption of anterior teeth were evaluated on digital models and cone beam computed tomography taken before and after space closure.\u0000 \u0000 \u0000 \u0000 Anchorage loss at crown of first molar was significantly more in frictionless group by 2.1 mm (95% CI = −0.4 to 3.5), (P = .014), while there was no significant difference in anchorage loss at root apex between groups. Significant mesial in molar rotation of 6.672° (95% CI = 12.2–21.2), (P = 0.02) was greater in the frictionless group. Both groups showed comparable tip, torque, and root resorption values. No severe harms were reported. There was mild gingival overgrowth and inflammation in the frictionless group due to T-loop irritation.\u0000 \u0000 \u0000 \u0000 Extra anchorage considerations are needed during en masse retraction when frictionless mechanics is implemented as higher anchorage loss and molar rotation were detected. No difference in tip, torque, and root resorption was observed.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":"4 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141101265","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}

引用次数: 0

Vertical and transverse treatment effects of Invisalign First system compared to Hyrax maxillary expanders with fixed appliances in mixed dentition patients 在混合牙患者中，隐适美 First 系统与 Hyrax 上颌扩弓器和固定矫治器的纵向和横向治疗效果比较

The Angle Orthodontist Pub Date : 2024-05-17 DOI: 10.2319/121023-818.1

Parisa Moravedje Torbaty, H. Suh, S. Tai, Marta Baird, Robert L. Boyd, Heesoo Oh

{"title":"Vertical and transverse treatment effects of Invisalign First system compared to Hyrax maxillary expanders with fixed appliances in mixed dentition patients","authors":"Parisa Moravedje Torbaty, H. Suh, S. Tai, Marta Baird, Robert L. Boyd, Heesoo Oh","doi":"10.2319/121023-818.1","DOIUrl":"https://doi.org/10.2319/121023-818.1","url":null,"abstract":"\u0000 \u0000 \u0000 To compare vertical and transverse changes in mixed dentition patients treated with the Invisalign First System (IFS) to those treated with a banded hyrax expander with fixed appliances (Hyrax) and control groups, and to assess the efficiency rate of dental arch expansion with IFS.\u0000 \u0000 \u0000 \u0000 The study included 80 mixed dentition patients, with 40 in each group (IFS and Hyrax) and 40 controls from the American Association of Orthodontists Foundation Craniofacial Growth Legacy Collection. Skeletal and dental vertical dimension changes and arch width changes between pretreatment (T1) and posttreatment (T2) were evaluated.\u0000 \u0000 \u0000 \u0000 Age at T1, time interval (T1-T2), sex, and Angle class did not significantly differ among the groups. Mandibular plane angle changes showed a similar reduction for the control and IFS groups, with no changes in the Hyrax group. However, the differences among the three groups did not reach statistical significance (P = .06). The Hyrax group showed significantly greater expansion in maxillary intermolar width compared to the IFS group, 4.4 vs 2.5 mm, respectively. The efficiency of maxillary expansion using IFS ranged from 52.3% to 76.87%.\u0000 \u0000 \u0000 \u0000 During the mixed dentition stage, no significant changes occurred in vertical dimensions among the control, Hyrax, and IFS groups. Although there was a trend suggesting a greater reduction in mandibular plane angle in the IFS group compared to the Hyrax group, this may not be clinically significant given the less than 1° difference. IFS can be a viable option for addressing mild arch width deficiencies, with a predictable increase in intermolar width of approximately 2.5 mm.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":"11 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140962834","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}

引用次数: 0

Accuracy of soy-based resins for dental 3D printing 用于牙科 3D 打印的大豆基树脂的精度

The Angle Orthodontist Pub Date : 2024-05-17 DOI: 10.2319/112523-779.1

Alexander Pauls, Antonia Hornberg

引用次数: 0

Influence of Invisalign precision bite ramp utilization on deep bite correction and root length in adults 隐适美精密咬合斜坡的使用对成人深咬合矫正和牙根长度的影响

The Angle Orthodontist Pub Date : 2024-05-10 DOI: 10.2319/012724-70.1

Fatemah Husain, S. Warunek, Ashish Gurav, Terry Giangreco, William Tanberg, T. Al-Jewair

{"title":"Influence of Invisalign precision bite ramp utilization on deep bite correction and root length in adults","authors":"Fatemah Husain, S. Warunek, Ashish Gurav, Terry Giangreco, William Tanberg, T. Al-Jewair","doi":"10.2319/012724-70.1","DOIUrl":"https://doi.org/10.2319/012724-70.1","url":null,"abstract":"\u0000 \u0000 \u0000 To assess the influence of Invisalign precision bite ramp use on skeletal deep overbite correction and root length and volume of maxillary anterior teeth.\u0000 \u0000 \u0000 \u0000 This was a retrospective study of 60 adults with skeletal deep overbite. Patients were divided into three groups: Invisalign (Align Technology, San Jose, Calif) with precision bite ramps (Invisalign with Bite Ramps [IBR] = 12), Invisalign with no bite ramps (INBR = 22), and full-fixed appliances (FFA = 26). Cone beam computed tomography records at T1 (pretreatment) and T2 (posttreatment) were used to measure eight skeletal, nine dental, and three soft-tissue cephalometric variables. Maxillary anterior teeth root length (mm), root volume (mm3), and percent root volume loss between T1 and T2 (%) were also recorded.\u0000 \u0000 \u0000 \u0000 Significant changes from T1 to T2 among the three groups were seen in ANB(o), lower face height (%), ODI (overbite depth indicator) (o), and U1–SN (o). Reduction in root length was significantly less (P < .001) in the INBR and IBR groups compared to the FFA group. Reduction in root volume and percent volume loss were significantly higher in the INBR group compared to the IBR group (P < .001), but the difference between the two Invisalign groups and the FFA group was not significant.\u0000 \u0000 \u0000 \u0000 Skeletal deep overbite correction using Invisalign with or without bite ramps is comparable to FFA. Reduction in root length was significantly less with Invisalign compared to FFA. Bite ramps influenced root volume and volume loss but not root length.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":" 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993300","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}

引用次数: 0

Does artificial intelligence predict orthognathic surgical outcomes better than conventional linear regression methods? 与传统的线性回归方法相比，人工智能是否能更好地预测正颌外科手术的结果？

The Angle Orthodontist Pub Date : 2024-05-10 DOI: 10.2319/111423-756.1

Ji-Ae Park, Jun-Ho Moon, Ju-Myung Lee, Sung Joo Cho, Byoung-Moo Seo, R. E. Donatelli, Shin-Jae Lee

{"title":"Does artificial intelligence predict orthognathic surgical outcomes better than conventional linear regression methods?","authors":"Ji-Ae Park, Jun-Ho Moon, Ju-Myung Lee, Sung Joo Cho, Byoung-Moo Seo, R. E. Donatelli, Shin-Jae Lee","doi":"10.2319/111423-756.1","DOIUrl":"https://doi.org/10.2319/111423-756.1","url":null,"abstract":"\u0000 \u0000 \u0000 To evaluate the performance of an artificial intelligence (AI) model in predicting orthognathic surgical outcomes compared to conventional prediction methods.\u0000 \u0000 \u0000 \u0000 Preoperative and posttreatment lateral cephalograms from 705 patients who underwent combined surgical-orthodontic treatment were collected. Predictors included 254 input variables, including preoperative skeletal and soft-tissue characteristics, as well as the extent of orthognathic surgical repositioning. Outcomes were 64 Cartesian coordinate variables of 32 soft-tissue landmarks after surgery. Conventional prediction models were built applying two linear regression methods: multivariate multiple linear regression (MLR) and multivariate partial least squares algorithm (PLS). The AI-based prediction model was based on the TabNet deep neural network. The prediction accuracy was compared, and the influencing factors were analyzed.\u0000 \u0000 \u0000 \u0000 In general, MLR demonstrated the poorest predictive performance. Among 32 soft-tissue landmarks, PLS showed more accurate prediction results in 16 soft-tissue landmarks above the upper lip, whereas AI outperformed in six landmarks located in the lower border of the mandible and neck area. The remaining 10 landmarks presented no significant difference between AI and PLS prediction models.\u0000 \u0000 \u0000 \u0000 AI predictions did not always outperform conventional methods. A combination of both methods may be more effective in predicting orthognathic surgical outcomes.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":" 15","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140990577","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}

引用次数: 1

Skeletal effects of posterior crossbite treatment with either quad helix or rapid maxillary expansion: a randomized controlled trial with 1-year follow-up 采用四螺旋或快速上颌扩张术治疗后交叉咬合的畸形效果：一项为期 1 年的随机对照试验

The Angle Orthodontist Pub Date : 2024-05-10 DOI: 10.2319/010424-9.1

Stina Hansson, E. Josefsson, Henrik Lund, Silvia Miranda-Bazargani, Anders Magnuson, R. Lindsten, F. Bazargani

{"title":"Skeletal effects of posterior crossbite treatment with either quad helix or rapid maxillary expansion: a randomized controlled trial with 1-year follow-up","authors":"Stina Hansson, E. Josefsson, Henrik Lund, Silvia Miranda-Bazargani, Anders Magnuson, R. Lindsten, F. Bazargani","doi":"10.2319/010424-9.1","DOIUrl":"https://doi.org/10.2319/010424-9.1","url":null,"abstract":"\u0000 \u0000 \u0000 To assess skeletal and dental effects and evaluate possible side effects of maxillary expansion with two different appliances, directly after expansion and 1 year postexpansion.\u0000 \u0000 \u0000 \u0000 Forty-two patients with unilateral posterior crossbite (mean 9.5 ± 0.9 years) were randomized to either rapid maxillary expansion (RME) banded on the deciduous second molars and bonded to the primary canines or slow expansion with quad helix (QH) on the permanent first molars. Cone-beam computed tomography records were taken at baseline, directly after correction of the posterior crossbite and at follow-up 1 year after expansion.\u0000 \u0000 \u0000 \u0000 All patients were analyzed. RME opened the midpalatal suture more anteriorly and inferiorly (mean 4.1 mm) and less posteriorly and superiorly (mean 1.0 mm). No effect on midpalatal suture could be shown in the QH group after expansion, P < .001. Buccal bone width had significantly decreased (P < .001) in the QH group compared with the RME group. Buccal fenestrations and root resorption on the left first molar had a higher prevalence directly after expansion finished in the QH group (P = .0086, P = .013) but were not significant at 1-year follow-up (P = .11, P = .22).\u0000 \u0000 \u0000 \u0000 Opening of the suture with RME was more anterior and inferior, and the QH did not open the midpalatal suture at all. More buccal bone loss and fenestrations were seen on the permanent first molar in patients treated with conventional QH than RME anchored to deciduous teeth.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":" 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141128764","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}

引用次数: 0

Orthodontic treatment outcome predictive performance differences between artificial intelligence and conventional methods 人工智能与传统方法在正畸治疗结果预测性能方面的差异

The Angle Orthodontist Pub Date : 2024-05-10 DOI: 10.2319/111823-767.1

Sung Joo Cho, Jun-Ho Moon, Dong-Yub Ko, Ju-Myung Lee, Ji-Ae Park, R. E. Donatelli, Shin-Jae Lee

{"title":"Orthodontic treatment outcome predictive performance differences between artificial intelligence and conventional methods","authors":"Sung Joo Cho, Jun-Ho Moon, Dong-Yub Ko, Ju-Myung Lee, Ji-Ae Park, R. E. Donatelli, Shin-Jae Lee","doi":"10.2319/111823-767.1","DOIUrl":"https://doi.org/10.2319/111823-767.1","url":null,"abstract":"\u0000 \u0000 \u0000 To evaluate an artificial intelligence (AI) model in predicting soft tissue and alveolar bone changes following orthodontic treatment and compare the predictive performance of the AI model with conventional prediction models.\u0000 \u0000 \u0000 \u0000 A total of 1774 lateral cephalograms of 887 adult patients who had undergone orthodontic treatment were collected. Patients who had orthognathic surgery were excluded. On each cephalogram, 78 landmarks were detected using PIPNet-based AI. Prediction models consisted of 132 predictor variables and 88 outcome variables. Predictor variables were demographics (age, sex), clinical (treatment time, premolar extraction), and Cartesian coordinates of the 64 anatomic landmarks. Outcome variables were Cartesian coordinates of the 22 soft tissue and 22 hard tissue landmarks after orthodontic treatment. The AI prediction model was based on the TabNet deep neural network. Two conventional statistical methods, multivariate multiple linear regression (MMLR) and partial least squares regression (PLSR), were each implemented for comparison. Prediction accuracy among the methods was compared.\u0000 \u0000 \u0000 \u0000 Overall, MMLR demonstrated the most accurate results, while AI was least accurate. AI showed superior predictions in only 5 of the 44 anatomic landmarks, all of which were soft tissue landmarks inferior to menton to the terminal point of the neck.\u0000 \u0000 \u0000 \u0000 When predicting changes following orthodontic treatment, AI was not as effective as conventional statistical methods. However, AI had an outstanding advantage in predicting soft tissue landmarks with substantial variability. Overall, results may indicate the need for a hybrid prediction model that combines conventional and AI methods.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140993044","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}

引用次数: 1

Do erupting maxillary canines resorb adjacent teeth? A study focusing both on the ipsilateral and contralateral sides among individuals with unilaterally impacted canines 萌出的上颌犬齿会吸收邻牙吗？一项针对单侧阻生犬齿患者的同侧和对侧研究

The Angle Orthodontist Pub Date : 2024-05-10 DOI: 10.2319/092723-655.1

Mélanie Le Ven, F. Rafflenbeul, Catherine-Isabelle Gros, François Lefebvre, Y. Bolender

{"title":"Do erupting maxillary canines resorb adjacent teeth? A study focusing both on the ipsilateral and contralateral sides among individuals with unilaterally impacted canines","authors":"Mélanie Le Ven, F. Rafflenbeul, Catherine-Isabelle Gros, François Lefebvre, Y. Bolender","doi":"10.2319/092723-655.1","DOIUrl":"https://doi.org/10.2319/092723-655.1","url":null,"abstract":"\u0000 \u0000 \u0000 To determine the prevalence of root resorption of teeth adjacent to permanent maxillary canines on both sides, by cone-beam computed tomography (CBCT), in pretreatment adolescent subjects with unilaterally impacted maxillary canines, and to define predictive factors for the root resorption.\u0000 \u0000 \u0000 \u0000 This retrospective sample included 76 adolescents (38 boys, 38 girls, mean age 12.3 ± 2.1 years; range 8–17 years) who had CBCT after detection of a unilateral impacted maxillary canine before any active orthodontic treatment. Both ipsilateral and contralateral sides were examined, and 14 qualitative and quantitative variables were collected. Descriptive statistics were calculated, and multiple logistic regression was used to predict root resorption.\u0000 \u0000 \u0000 \u0000 On the impaction side, 57.9% of canines resorbed at least one adjacent tooth compared with 13.2% on the contralateral side (P < .001). On the impaction side, resorption was slight in 59.6%, moderate in 5.8%, and severe in 34.6% of the cases. On the contralateral side, resorption was slight in 91.7%, moderate in 0%, and severe in 8.3% of the cases. On both sides, upper lateral incisors were the teeth most frequently resorbed, followed by the upper first premolars and upper central incisors. The presence of contact between the canine and the adjacent roots was the only statistically significant risk factor for resorption for both ipsilateral and contralateral sides.\u0000 \u0000 \u0000 \u0000 Orthodontists should look for root resorption on both sides in cases of unilaterally impacted maxillary canines.\u0000","PeriodicalId":503286,"journal":{"name":"The Angle Orthodontist","volume":" 17","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140990610","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}

引用次数: 0