{"title":"Relationship between the development of skeletal mesio-occlusion and posterior tooth-to-denture base discrepancy--its significance in the orthodontic reconstruction of skeletal Class III malocclusion.","authors":"S Sato, Y Suzuki","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The purpose of this paper is to explain the relationship between the development of Skeletal Class III malocclusion and the posterior discrepancy. Four cases which had severe Skeletal Class III malocclusion and had experienced unsuccessful orthodontic correction are presented to evaluate the causative factors of Skeletal Class III malocclusion. The forward displacement of the mandible was associated with inferiorely positioned maxillary molars and/or superiorly positioned mandibular molars caused by the \"squeezing out\" effect of posterior discrepancy, which provides a less steep maxillary occlusal plane in the denture frame. Perhaps continuous forward displacement of the mandible induces vertical condylar elongation which establishes the characteristics of Skeletal Class III malocclusion. A new approach to the orthodontic treatment of skeletal Class III malocclusion was achieved by the control of the occlusal plane with four second molars extraction in order to eliminate the posterior discrepancy.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 4","pages":"796-810"},"PeriodicalIF":0.0,"publicationDate":"1988-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14396217","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}
T Susami, S Aikawa, N Motohashi, K Ohyama, S Suzuki, M Amano, Y Kato, S Nomura, Y Ishiwata, Y Baba
{"title":"[Three-dimensional analysis of maxillary alveolar process in bilateral cleft lip and palate patients].","authors":"T Susami, S Aikawa, N Motohashi, K Ohyama, S Suzuki, M Amano, Y Kato, S Nomura, Y Ishiwata, Y Baba","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The collapsed maxillary alveolar arch in bilateral cleft lip and palate (BCLP) patients was quantitatively evaluated by three dimensional analysis. Materials were consisted of alveolar models taken from 15 Japanese boys (11 years old) with BCLP. The findings obtained were as follows: 1. Examination of the alveolar displacement in individual BCLP patients disclosed a marked tendency of inward and upward displacement of the lateral segments. On the other hand, premaxilla showed an upward displacement in the vertical dimension with a great deal of variation in the amount and direction of horizontal displacement. 2. Concerning the average amount of horizontal displacement, the premaxilla showed relatively little, but the lateral segment, especially the left one, showed a considerably large amount. In the vertical dimension, both the premaxilla and lateral segment were displaced markedly upward. 3. Patterns of collapsed alveolar arch in BCLP patients were classified according to the amount of horizontal displacement of the premaxilla into the following 4 types; type A (larger displacement towards the inside), type B (moderate or smaller displacement towards the inside), type C (moderate or smaller displacement towards the outside) and type D (larger displacement towards the outside). The order of prevalence of these 4 types was B,C,A,D in order. On the other hand, in the vertical dimension, the direction of displacement of the premaxilla was upward in all patients. 4. The anterior edge of the lateral segments showed the largest amount of displacement both in the horizontal and vertical dimensions. In a comparison of these results with those of Unilateral Cleft Lip and Palate (UCLP), the total amount of horizontal displacement of the maxillary alveolar process was larger in UCLP, while the vertical one was larger in BCLP. A remarkable difference between BCLP and UCLP was found in the displacement of the anterior region due to the premaxilla in BCLP.</p>","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 4","pages":"757-66"},"PeriodicalIF":0.0,"publicationDate":"1988-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14396214","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}
N Shirasuga, M Awai, K Tatsuno, T Nakago, O Ishida, N Nagai
{"title":"[Ultrastructural studies of osteogenic and phagocytic cell kinetics on the bone-hydroxyapatite interface].","authors":"N Shirasuga, M Awai, K Tatsuno, T Nakago, O Ishida, N Nagai","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"536-48"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13993302","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":"Effects of the anterior bellies of the digastric muscle on growth and development of the rat mandible.","authors":"T Ohura","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"507-16"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379665","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}
H Miyazaki, E Motegi, Y Kuboki, I Park, H Konishi, M Sebata
{"title":"[An orthodontic study of temporomandibular joint dysfunction. Part 2. Clinical research in orthodontic patients].","authors":"H Miyazaki, E Motegi, Y Kuboki, I Park, H Konishi, M Sebata","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"590-600"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379670","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":"[Psychological evaluation of the effects of orthognathic surgery for male and female patients with mandibular prognathism].","authors":"T Itoh, S Yamakage, Y Endo, H Mitani","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"601-11"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379671","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 analysis of ceramic bracket by the finite element method.","authors":"H Iwamoto, S Oh, Y Ohta","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"612-20"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379672","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":"[Development of zirconia ceramic bracket for orthodontic use. A study of bond strength].","authors":"J Urano","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"549-59"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14208155","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}
E Motegi, H Miyazaki, I Ogura, H Konishi, M Sebata
{"title":"[An orthodontic study of temporomandibular joint dysfunction. Part 1. Epidemiological research in 6-18-year-olds].","authors":"E Motegi, H Miyazaki, I Ogura, H Konishi, M Sebata","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"579-89"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379669","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 three-dimensional analyzing system of the face using stereophotogrammetry and computer graphics].","authors":"H Chaya, H Ishikawa, T Imai, S Nakamura","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":76235,"journal":{"name":"Nihon Kyosei Shika Gakkai zasshi = The journal of Japan Orthodontic Society","volume":"47 3","pages":"560-78"},"PeriodicalIF":0.0,"publicationDate":"1988-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14379668","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}