The Japanese Journal of Jaw Deformities最新文献

{"title":"A Case of Le Fort Ⅰ Osteotomy on a Patient with Malunited Panfacial Fracture","authors":"T. Karube, S. Kato, Yuki Okuhara, H. Shiba","doi":"10.5927/JJJD.31.24","DOIUrl":"https://doi.org/10.5927/JJJD.31.24","url":null,"abstract":"Panfacial fracture is often accompanied by soft tis-sue injuries and loss of bony structures. Because of the lack of normative anatomical structure, it is difficult to reduce and fix to the former state. Moreover, it could lead to post-traumatic deformities and dysfunctions. If appropriate primary treatment is not performed, it can cause abnormal bone healing and scarring of soft tissue. Therefore, orthognathic surgery is frequently performed for jaw deformity due to malunited panfacial fracture. The present case was a 24-year-old man who suffered panfacial fracture in a traffic accident. The maxilla and mandible were openly reduced and internally fixed at another hospital; other fractures in this region were conservatively managed. However, malocclusion and facial deformity caused by malunion were seen and nine months later he was referred to our hospital with a chief complaint of concave profile and occlusal reconstruction. We aimed to improve his concave profile and decided to perform orthognathic surgery. Intraoral findings showed Angle Class Ⅰ and Class Ⅲ molar relations on the right and left, respectively. Cephalometric analysis revealed SNA 72.0°, SNB 77.7°, ANB−5.7° and A-B plane 7.4°. He was diagnosed as maxillary retrusion associated with malunited panfacial fracture. In order to achieve func-tional occlusion, two surgical plans were proposed: 5 mm advance by Le Fort Ⅰ osteotomy or 5 mm setback by bi-lateral sagittal split ramus osteotomy. We performed 3D virtual planning using software, which showed that Le Fort Ⅰ osteotomy was appropriate compared with bilat-eral sagittal split ramus osteotomy. We informed him of this surgical plan with 3D simulation data, and he agreed to it. It was expected to be difficult to perform normal osteotomy because of bone defect and malunion, so we constructed a 3D stereolithographic model and carried out surgery on the model. Finally, we performed orthognathic surgery as planned and safely. The postoperative course has been uneventful since then. It is thought that these surgical procedures may be effective for patients with malunited panfacial fracture, and that preoperative management led to good results.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116791492","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 Questionnaire-based Survey in Consensus Meeting of Jaw Deformity Treatment","authors":"T. Iwai, T. Takenobu, T. Kanno, K. Yamauchi, K. Ooi, Y. Kawase‐Koga, Takako Sato, N. Tomomatsu, M. Narita, Norie Yoshioka, Tadaharu Kobayashi","doi":"10.5927/JJJD.29.11","DOIUrl":"https://doi.org/10.5927/JJJD.29.11","url":null,"abstract":"A questionnaire-based survey of the current status of treatment of jaw deformity was carried out before a consensus meeting for treatment in 2018. The survey consisted of questions concerning treatment planning, preoperative preparation, prophylactic antibiotics, anesthesia, transfusion, orthognathic surgery, posto perative management, and complications. All 36 institutions ans-wered the web-based questionnaire, and the results of the survey were discussed in the consensus meeting. This study revealed the current status of treatment of jaw deformity in Japan. Because the study included only a small number of institutions, a more extensive survey is required to clarify the actual status of treatment of jaw deformity in Japan.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128832062","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":"Statistical Analysis of Orthognathic Surgery Undertaken in the Oral and Maxillofacial Surgery Department of Yamagata University Hospital over the Past 28 Years","authors":"T. Kawaguchi, S. Ishikawa, K. Maehara, M. Iino","doi":"10.5927/JJJD.29.23","DOIUrl":"https://doi.org/10.5927/JJJD.29.23","url":null,"abstract":"Purpose: To perform a statistical analysis of orthognathic surgery performed at the Oral and Maxillofacial Surgery Department of Yamagata University Hospital between 1990 and 2017. Methods : Sex, age, clinical diagnosis, surgical method, operation time, bleeding volume, and postoperative management of 583 patients were analyzed. Results : There were 190 males and 393 females. The age at the time of surgery ranged from 5 to 73 years (average age 22.0 years). Mandibular protrusion alone was the most frequent clinical diagnosis, accounting for 278 cases (47.7%), followed by 99 cases of facial asymmetry with mandibular protrusion (17.0%), and 45 cases of open bite with mandibular protrusion (7.7%). A total of 384 cases (67.1%) of sagittal split ramus osteotomy (SSRO) and 140 cases (24.5%) of double-jaw surgery using SSRO and Le Fort I osteotomy (LF I) were performed. There were 20 cases (3.5%) of genioplasty (GEN) concomitant with SSRO. In recent years, double-jaw surgery has been the most frequent surgical procedure. The average surgical time and bleeding volume were 162.8min and 278.9ml in SSRO respectively, and 310.1min and 767.6ml in LF I+SSRO respectively, and both decreased over time. The number of days patients stayed in hospital was on a downward trend, with the shortest stay being 6 days, the longest 40 days, and the average 17.9 days. For occlusion management after surgery, no cases have been fixed with wire since 2010, and intermaxillary rubber traction was used in all cases. With regard to congenital diseases, 9 patients with cleft lip and palate, one with Apert syndrome, and one with Pfeiffer syndrome were treated. Discussion : In spite of the increase in complicated surgical procedures in recent years, operating time, hospitalization time and bleeding volume have decreased. These trends may signify improvements in surgical techniques and perioperative management. Because almost all of our cases are referrals from other dental clinics, the constant trend in the number of surgeries indicates smooth cooperation with regional medical facilities.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"96 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133123880","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":"The 16th educational workshop of the Japanese Society for Jaw Deformities","authors":"","doi":"10.5927/jjjd.30.293","DOIUrl":"https://doi.org/10.5927/jjjd.30.293","url":null,"abstract":"","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115861418","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 Rhomboid-to-W technique Application at the Fistula of the Chin Caused by Silicone Implant Infection","authors":"Masahide Koyachi, A. Nishiyama, H. Bessho, K. Sugahara, Yoshiaki Kato, Kiyohiro Kasahara, A. Katakura","doi":"10.5927/jjjd.31.181","DOIUrl":"https://doi.org/10.5927/jjjd.31.181","url":null,"abstract":"Chin augmentation using silicone implants is often performed in the field of cosmetic surgery, and has been associated with greater bone resorption and postsurgi-cal infections. Herein, we encountered a case of bone resorption and fistula that occurred in a patient who had undergone silicone implantation at another hospital. We removed the implant and performed fistula closure using the rhomboid-to-W technique. A 39-year-old woman visited our hospital because a fistula with pus discharge had developed in the lower portion of the mental region. Computed tomography and magnetic resonance imaging showed the presence of a silicone implant, as well as compression of the bone in the midline of the anterior region of the mandible. The fistula was contiguous with the silicone implant. Based on the medical history and image-based findings, the patient was diagnosed with an infection caused by the silicone implant. For removal of the implant and fistula closure, the rhomboid-to-W technique was applied because of the availability of a secured surgical field and consideration for postoperative esthetics. Two years after surgery, the progress remains favorable.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"131 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132186628","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 Correction of a Skeletal Class Ⅲ Case Treated by Dental Decompensation Using Anchor Screws","authors":"Tomoyo Tanaka, Takashi Murakami, Norifumi H. Moritani, Tatsushi Matsumura, S. Iida, H. Kamioka","doi":"10.5927/jjjd.29.295","DOIUrl":"https://doi.org/10.5927/jjjd.29.295","url":null,"abstract":"We report a case of skeletal mandibular protrusion with dwarfed teeth treated by dental decompensation using anchor screws. The patient was a female aged 18 years and 5 months at the first visit with the chief complaint of mandibular protrusion and space between maxillary anterior teeth. She had a concave facial profile with slight midfacial concavity. ∠ANB was −6.0°, ∠SNA was 78.5° and ∠SNB was 84.5°. The intraoral view showed anterior and posterior crossbite. The molar relationship was Angle ClassIII. Lower incisors showed lingual inclination because of dental compensation. In the conventional treatment, labial tipping of the lower incisors was likely to generate interdental spaces in the mandibular arch with mild crowding. Subsequently, in the process of closing spaces, retroclination of the incisors was frequently seen. In the present case, we used orthodontic anchor screws to maintain the lower incisor angle during presurgical orthodontic treatment. After 14 months of preoperative orthodontic treatment, Le Fort I osteotomy and intraoral vertical osteotomy (IVRO)were performed. As a result, the mandibular incisors were inclined labially by 7.0°. The posterior part of the maxilla was moved superiorly by 4.5mm and the mandible was set back by 11.5mm at the menton. The crossbite and concave facial profile were improved by the appropriate amount of mandibular set-back. Additionally, condylar movement and incisal paths(opening and closing, lateral excursive movements)were also improved at 25 months after the initiation of retention.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116949606","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":"シンポジウム4：骨格性Ⅱ級症例に対する治療戦略","authors":"","doi":"10.5927/jjjd.32.120","DOIUrl":"https://doi.org/10.5927/jjjd.32.120","url":null,"abstract":"","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"732 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116987053","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":"シンポジウム4：顎変形症治療における顎関節機能の回復","authors":"","doi":"10.5927/jjjd.33.113","DOIUrl":"https://doi.org/10.5927/jjjd.33.113","url":null,"abstract":"","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"735 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116989879","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":"Clinical Study of Posterior-superior Repositioning of Maxilla by Le Fort Ⅰ Osteotomy","authors":"K. Egami, K. Fujita, K. Yokoyama, Hiroki Kobayashi, Y. Tsuchida, T. Shimo, K. Akizuki","doi":"10.5927/jjjd.30.205","DOIUrl":"https://doi.org/10.5927/jjjd.30.205","url":null,"abstract":"Patients with a long face and open bite often undergo posterior-superior repositioning of the maxilla in orthognathic surgery. In this paper, we report an analysis of cases of posterior-superior repositioning of the maxilla at Matsuda Orthopedic Memorial Hospital from June 2004 to December 2018. The results were as follows : 1.There were 44 patients who had undergone orthognathic surgery for posterior-superior repositioning of the maxilla. The patients were 3 males (7%) and 41 females (93%). 2.The mean age at surgery was 27.3 at s years old (range : 16-60 years). 3.The most common clinical diagnosis was maxillary prognathism with maxillary excess (16 cases : 36.4%). 4.The most common surgical method was Le Fort I osteotomy (LF I+SSRO (23 cases : 52.3%)), followed by LF I+SSRO+Genioplasty (GEN) (11 cases : 25.0%). 5.The average time of operation for LF I+SSRO was 306.7±56.2 minutes and that for LF I+SSRO+GEN was 337.1±59.1 minutes. 6.The average amount of bleeding was 461.7± 188.0ml for LF I+SSRO and that for LF I+SSRO+GEN was 377.0±206.0ml. 7.The average distance of posterior and superior of the maxilla was 3.6±1.6mm and 4.3±2.1mm, respectively.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123707075","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 Statistical Analysis of Orthognathic Surgery for the Last 10 Years in Yoshikawa Orthodontic Clinic","authors":"Ayako Fujimoto, N. Tominaga, K. Tominaga, Chiaki Fukuda, Yoshimi Kawahara, Y. Yoshikawa","doi":"10.5927/jjjd.32.241","DOIUrl":"https://doi.org/10.5927/jjjd.32.241","url":null,"abstract":"Clinical and statistical analyses were performed on 416 patients who underwent orthognathic surgery at Yoshikawa Orthodontic Clinic from January 2011 to December 2020. The results were as follows: In surgical orthodontic treatment, an interdisciplinary approach with oral surgery allows a more flexible response to various cases.","PeriodicalId":102257,"journal":{"name":"The Japanese Journal of Jaw Deformities","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123743969","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}