Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society最新文献

{"title":"[Changes and stability of the cant of occlusal plane following orthodontic treatment].","authors":"N Suzumura,&nbsp;H Mtani,&nbsp;K Sato","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this study was to investigate the changes of the cant of occlusal plane during and after orthodontic treatment. Materials consisted of lateral roentgenocephalograms of 42 patients treated with full brackets system. Cephalograms were taken at following 4 stages; the beginning of orthodontic treatment, the beginning of retention, the end of mechanical retention and 3 years after the end of retention. Measurements were done at following angles and distance. 1. SN--occlusal plane angle 2. palatal plane--occlusal plane angle 3. mandibular plane--occlusal plane angle 4. Xi point--occlusal plane distance The results were as follows: 1. The SN-occlusal plane angle tended to decrease as time passed, although the pattern of the changes was different among Cl. I, Cl. II and Cl. III groups. 2. The changes of the occlusal plane mainly occurred within the limit of alveolar process. 3. Extension line of the occlusal plane tended to be close to the Xi point as time passed. 4. When the SN--occlusal plane angle was changed largely during the orthodontic treatment, it tended to relapse more after treatment.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 4","pages":"404-10"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13783663","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":"[Changes in the microvascular pattern of the periodontal ligament in an experimental tooth extrusion].","authors":"K Kobayashi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Forty eight adult cats were employed to investigate the serial changes of vascular patterns of the periodontal ligament on tooth extrusion. The right upper canines have been successively extruded (initial load 40 gr) with a open coil spring. The experimental periods were set on 1, 2, 3, 4 and 6 weeks respectively. On each experimental period, the microvascular casts of the periodontal ligament and alveolar bone around the experimental tooth were prepared for the scanning electron microscopy, utilizing the acrylic plastic injection method (Taniguchi and Ohta, et al. 1952 and 1955). And the serial sections of the surrounding tissues of the experimental tooth were made. In order to elucidate the mode of the tooth movement, the load of applied force and the distance of extrusion were measured. Results obtained were as follows: 1. The experimental tooth was extruded rapidly during first two weeks. The speed reduced gradually afterwards. 2. The new vascularization was seen around the apex first, then widely spread in the periodontal ligament. And the remarkable trabecula-shaped bone formation were observed around the venous networks of the root apex after two week period. 3. The tissue reactions after the tooth extrusion delayed in comparison with the movement of the tooth. 4. Although the tissue reactions of the root apex of the extruded tooth were originally similar to the one in the transverse tooth movement, slight differences were found in timing of the tissue change and shape of the capillary network. The findings of the tissue change showed that the light force was indicated in extrusion of the tooth. And the range of action of the force applied should be limited in orthodontic clinic.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 4","pages":"411-24"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13784319","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":"[Changes in the microvascular pattern of the periodontium in an experimental tooth movement].","authors":"M Hosoyama","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of the present investigation was to observe changes in the microvasculature related to the reorganization of periodontal tissue during tooth movement and to evaluate the role of periodontal vasculature. The experimental study, employing cats, was done by injection of acrylic resin into the microcirculatory system of the periodontal membrane to make visible vascularization and remodeling of the alveolar bone structure when orthodontic force was placed on a tooth. 1. Pressure side New blood vessels arose from pre-existing vessels, entered resorption lacunae, connected with each other, and formed the vascular layer for alveolar bone resorption, covering the bone surface. The blood vessels of the root side around the degenerate tissue initially had spear-like ends because of imperforation, but the vessels gradually became interconnected, forming capillary loops, and encircling the degenerate tissue. This vascular layer for capillary-loop formation and the inner circumferential vascular layer for alveolar bone resorption were completed after 3 weeks. Newly formed blood vessels ran into the resorption lacunae and formed two networks. The networks enhanced metabolic activities such as resorption by multinuclear giant cells and the proliferation of osteoblasts and fibroblasts, resulting in regeneration of the periodontal membrane. 2. Tension side The vascular pattern on the crest area in the controls showed a two-layered structure with one vascular network on the root side and one on the alveolar bone side. After 1 week, the latter was stretched to the former, forming a canopy-like structure, and causing the two-layered structure to disappear. The canopy-like structure disappeared with time, and vascularization occurred at the sites of bone formation and fibroblast proliferation. These vascular changes seemed to contribute to the regeneration of the periodontal membrane. Blood vessels responded rapidly to the environmental changes in the periodontal membrane, adjusting their morphology to functional changes, and these vascular changes preceded the deposition or resorption of bone.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 4","pages":"425-42"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13784320","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":"[Effect of anterior-lateral mandibular displacement occurring in lateral roentgenocephalometry at the open mouth position on the linea measurements].","authors":"T Ichida,&nbsp;Y Itoh,&nbsp;E Nodai,&nbsp;K Fujita,&nbsp;M Sato","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The present study was undertaken to determine the effect of mandibular displacement occurring in lateral roentgenocephalometry at the open mouth position and of the resulting changes in the projected sites on linea measurements of the mandible. With use of a brachicephalic young (corresponding to age 7) and a dolichocephalic adult human dried mandible, lateral roentgenocephalograms taken under different conditions with angles and distances varied, simulating clinical lateral roentgenocephalometry at the open mouth position, were compared and studied. The results were as follows: 1. Displacement from 5 mm to 30 mm perpendicular to the central X-ray caused unfixed changes, presumed to be human errors in measuring, in the following ranges; brachicephaly: 0-1.4%, dolichocephaly: 0-0.9%. 2. As angles of rotation perpendicular to the central X-ray increase from 0 to 10 degrees clockwise, significant reduction in inverse proportion to the increase in angles of rotation were found; Cd-Gna: brachicephaly: 1.3%, dolichocephaly: 0.9-1.4%; Go-Gna: brachicephaly: 1.6-3.3%, dolicocephaly: 1.4-2.2%. However, unfixed changes in the following ranges were found for Cd-Go; brachicephaly: 0.5-2.3%, dolicocephaly: 0.6-1.2%. 3. Increase in angles of rotation counterclockwise also showed a similar tendency to that in clockwise rotation.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 4","pages":"443-53"},"PeriodicalIF":0.0,"publicationDate":"1989-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13784321","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":"[Longitudinal changes in the dentition of the deciduous reversed bite using plaster casts].","authors":"K Nagahara","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>It is known that some of the deciduous reversed bite cases are corrected spontaneously by themselves. No decisive conclusion, however, has been achieved so far as to what morphological characteristics the self corrected cases have. The purpose of this study, therefore, was to determine whether the difference between the self corrected group (n) and the non-self corrected group (r) exists at their initial examination or if it occurs as a result of changes in occlusion. The materials used in this study were the serial plaster casts of 29 Japanese girls with the deciduous reversed bite at their first visit and these were measured with the three dimensional measurement system. The following results were obtained: 1. Characteristics of the initial examination with the n group: Overjet (-) and overbite in the n group were smaller than in the r group. The arch length and the perimeter of the maxillary dentition in the n group were longer, and the area of the incisive bone (U-C) was wider than in the r group. Moreover, the upper and lower canines in almost all of the n group cases were not touching each other and did not restrict mandibular movement, resulting in easy attrition for the deciduous anterior dentition. 2. Longitudinal changes in the n group: Mean change of this group showed a decrease in overbite caused by the attrition of the deciduous central incisors and the continuous eruption of the maxillary second deciduous molars. Overjet also decreased, because of an increase in the maxillary anterior arch length and of backward movement in the mandibular dental arch. Individual changes were much alike in mean changes in almost all of the measured items. Arch width between canines in the maxilla and arch length in the mandible decreased in some cases, suggesting that a discrepancy would occur when the permanent incisors erupt. 3. Longitudinal changes of the r group: Mean changes showed that overbite decreased in the same pattern as the n group, but overjet did not change and the mandible did not show backward movement. The reason was that overbite in this group was deeper than in the n group at the initial examination. Moreover, deciduous molar to molar width became wider to compensate the decrease in the arch length and the perimeter. Individual changes showed that some of the r group cases had a tendency to improve, but some became worse.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"275-303"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13779406","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":"[Stress-generated potential (SGP) on the surface of fluid-filled monkey mandible].","authors":"S Iguchi","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Previous studies have shown that stress generated potential (SGP) with bone deformation caused by orthopedic force have an important role in regulation on bone remodeling. The purpose of this study was to evaluate the effects of the chin cap on bone remodeling by elucidating the characteristics and distribution of SGP at various parts on the mandible. Experiment was carried out using a mandible of macaca irus monkey which was kept in moisture with 0.9% saline. SGP was recorded using Ag-AgCl electrode from the 32 sections on the surface of the mandible. The force (3 kg) was applied to the chin with six load conditions. It simulated the force generated by chin cap. Temporomandibular joints and the soft tissue except masseter muscle were kept intact. The results were summarized as follows. 1. SGP was generated only when the load was applied or removed. No SGP was generated when the load was steady, even the absolute value was large. 2. When the interval between \"on\" and \"off\" of the load was shorted, generated SGP with \"off\" timing decreased, while that with \"on\" timing unchanged. 3. When the load was applied in the low pull direction under the centric occlusion, rather larger negative SGP was recorded at the chin, posterior sections of mandibular body and inferior border of the mandible. 4. When jaw was in closing position, high pull loading generated larger SGP at the alveolar bone and the mandibular body than that with low pull loading, although their electric sign was the same at each recorded sections. 5. When jaw was in opening position, low pull loading generated larger SGP at the posterior parts of the alveolar bone and the mandibular body than that in closing position. 6. When a bite block was placed between the upper and lower teeth, larger amplitude in SGP was the evidence in all the recorded sections especially around the bite block. 7. SGP recorded at the posterior part of the mandible increased with the sliding of the location of the bite block towards posterior portion. 8. The electric sign and the amplitude in SGP and that of the stress analyzed by a finite element method were similar at the each sections on the mandible. This suggests SGP is related with the stress generated in the bone. The results suggested that effects of chin-cap on the bone remodeling might be dependent on the direction of the load, tooth contact, existence of bite block, and its location. Also dynamic loading was suggested to be more effective.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"304-21"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13662353","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":"[Individual growth study of the effects of chin cap force to the mandible].","authors":"H Oda,&nbsp;A Ueda,&nbsp;Y Miyagawa,&nbsp;H Hongou,&nbsp;K Kuroki,&nbsp;M Suzuki,&nbsp;Y Suzuki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was undertaken to investigate a certain regulation of the chin cap force to a growing human mandible, especially with regard to the effect on the growth amount and timing by means of allometric relation between stature and craniofacial complex. Materials were consisted of roentgencephalograms which had been taken from fifteen Japanese females with skeletal class III malocclusion and records of time length of chin cap use and stature. The results were as follows: 1. Chin cap had a great influence on mandible during the preadolescent and adolescent periods (P less than 0.01). 2. What was most influenced by orthopedic force was intercondylar width, followed by mandibular length, intergonial width, mandibular body length, and ramus height. 3. Restraint of growth was found in mandibular length, mandibular body length, and ramus height, but on the other hand acceleration of growth in intercondylar width and intergonial width was also found. In conclusion, it would be possible to say that if it is used propertly, chin cap therapy can be effective within certain limits for skeletal class III malocclusions in view of restraint and acceleration of mandibular growth.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"355-61"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13779410","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":"[Morphological feature and incidence of TMJ disorders in mandibular lateral displacement cases].","authors":"K Fushima,&nbsp;S Akimoto,&nbsp;K Takamoto,&nbsp;S Sato,&nbsp;Y Suzuki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>In the malocclusion with mandibular lateral displacement (MLD), it is difficult to establish the functional occlusion by orthodontic means. The careful diagnosis brings us to recognize that MLD condition is the rule rather than the exception. In order to examine the characteristics of the cranio-facial morphology in the cases with MLD, the posteroanterior cephalograms were analyzed. Furthermore, the incidence of temporomandibular joint (TMJ) disorders (joint sound and joint pain) were examined clinically. The results were as follows: 1) Occlusal plane and mandibular plane (the plane running through the anti-gonialnotch bilaterally) inclined superiorly toward the mandibular displaced side. 2) The position of mandibular head shifted to the opposite direction of the mandibular displaced side. 3) The symptoms of TMJ disorders were found in 65.0% of patients with MLD, and more frequently at the TMJ of mandibular displaced side. Considering the evidences, the symptoms of TMJ disorders were much detected and occlusal deviation was found in MLD, it is suggested that mandibular dysfunctions derived from occlusal problems relate to the appearance of MLD. Since both the mandibular plane and the occlusal plane revealed the similar changes in response to mandibular deviation, it is considered that the condition of MLD as skeletal problem may be induced by the functional lateral shift of mandibular position come from occlusal interference during growth period. The deviation of mandibular head may relate to the appearance of TMJ disorders in MLD. Therefore, it is important to recognize the adequate mandibular position prior to occlusal reconstruction, and the vertical dimension control of the occlusal plane is necessary for improving the condition of TMJ and establishing the functional occlusion in the cases with MLD.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"322-8"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13779407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"[Assessment of dentofacial growth changes using quadrilateral analysis].","authors":"J Ogasawara,&nbsp;H Ishii,&nbsp;M Shoji,&nbsp;K Chieda,&nbsp;S Morita,&nbsp;H Tosa,&nbsp;S Nakamura","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was investigated to demonstrate the normal standards of the quadrilateral analysis and thereafter to clarify the mode of growth change by assessment of skeletal, dental and soft tissue proportion by the means of quadrilateral analysis. The materials used in this study consisted of cephalograms of 30 girls with normal occlusion. Cephalograms were taken longitudinally from first year grade of elementary school to third year grade of middle high school. For the group of each year grade, mean facial diagram, mean values of conventional cephalometric analysis and those of quadrilateral analysis were made, and compared and discussed for each other. The results were as follows: 1) The mandible grows forward with the decrease of gonial angle and forward rotation of mandibular plane. 2) In quadrilateral analysis, both jaws grow proportionally to the 6 year grade of elementary school, and after then mandible grows more forward than maxilla. 3) Though occlusal plane tended to rotate counterclockwisely to the palatal plane, it fell at right angle with A'B'. 4) Upper centrals tended to incline labially to the cranial base from first year grade to 6 year grade of elementary school and after that stage it remained stable. Lower centrals varied to third year grade of elementary school, but after that stage it remained stable. 5) Distances of upper and lower incisors to A'B' showed comparatively constant increase after the full eruption of permanent incisors. 6) Distance of nose tip to A'B' increased the most in the soft tissue landmarks. Subnasale soft pogonion line was considered to be effective base line of soft tissue profile because the angle with A'B' was stable along the growth and the distances of that to upper and lower lips were stable.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"329-43"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13779408","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":"[Stabilized position of incisors after orthodontic treatment on reversed occlusion cases with skeletal imbalance. Application of quadrilateral analysis].","authors":"S Morita,&nbsp;H Ishii,&nbsp;K Egami,&nbsp;H Ogura,&nbsp;K Kasai,&nbsp;H Seki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>This study was made to evaluate the position of the incisors after orthodontic treatment on reversed occlusion cases with skeletal imbalance and to establish norms of the upper and lower central incisors on the quadrilateral (quadrilateral analysis) as the orthodontic treatment objectives through lateral cephalograms. The materials used for this study consisted of twenty-eight posttreatment lateral cephalograms which were taken at more than 2 years after active treatment, and twenty lateral cephalograms which were taken from young-adult females with normal occlusion. The treated samples were of twenty-eight females which were over 14 years old and had reversed occlusion with less than 2 degrees of ANB angle at first examination. These samples were divided into two groups: one consisted of 17 cases females with more than 0 degree of ANB angle and the other of 11 cases with less than 0 degree of ANB. And 11 cases which were treated with multi-bracket appliance alone were selected from the treated samples in order to examine the morphological changes during orthodontic treatment. The results were as follows: 1. In the treated sample the mean profile showed protrusion of the soft pogonion and had slightly forward position of the upper lip and the lower lip, but the outline from the subnasale to the soft pogonion coincided with that of the normal occlusion sample. 2. The ANB angle of the treated sample was smaller than that of the normal occlusion sample so that the mandible of the treated sample was prognathic. 3. The overjet of the treated sample revealed normally in spite of this skeletal disharmony because of compensation by labial inclination of the upper incisors and lingual inclination of the lower incisors. The stronger this skeletal imbalance was, the more the upper incisors inclined labially. But the Ll-Mp showed no difference between the groups which had more than 0 degree of ANB angle and that which less than 0 degree of ANB. 4. The edges of the maxillary and mandibular central incisors always were at a certain place from A'B' line not undergoing an effect of the jaw relationship, and the edge of the mandibular central incisor placed at 8 mm in front of A'B' line. 5. In the treated sample the mandibular central incisor positioned at 1 mm above the occlusal plane. 6. Occlusal plane-A'B' angles in the treated and the normal occlusion samples were revealed about 90 degrees.(ABSTRACT TRUNCATED AT 400 WORDS)</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"48 3","pages":"344-54"},"PeriodicalIF":0.0,"publicationDate":"1989-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13779409","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}