出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.19, no.4, pp.217-237, 2009-12-15 (Released:2012-03-16)

著者

大塚 雄一郎 藤田 昌樹 江川 広人 三條 恵介 藤本 舞 龍田 恒靖 松井 成幸 嶋田 淳 須田 直人

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.25, no.1, pp.32-41, 2015-04-15 (Released:2015-04-27)

参考文献数

30

被引用文献数

4

---

The osteotomy line in sagittal split ramus osteotomy (SSRO) has a wide variation among surgeons. Recently, short lingual osteotomy (SL), in which the lingual split is limited up to the area near the mandibular foramen, is performed in many facilities. The reason for this is that SL can reduce the amount of interference between the proximal and distal segments, and shorten the operation time compared with Obwegeser osteotomy (Ob). However, since medial pterygoid muscles (MPM) are included in the proximal segments, SL is prone to induce backward rotation and distal positioning of the mandibular ramus due to the interference between MPM and distal segments when mandibular setback is performed.The purpose of this study was to compare the postoperative outcome of SL and Ob for mandibular prognathism. Twenty-two skeletal Class III cases without lateral deviation treated by SSRO in Meikai University Hospital, were examined. Among the 22 cases, 15 and 7 cases underwent SL and Ob, respectively. The postoperative changes of the proximal and distal segments were evaluated in lateral and postero-anterior cephalograms taken immediately before the surgery (T1), immediately after the surgery (T2), and one year after the surgery (T3). At T1, there was no significant difference in SNB, FMA, or gonial angle between the SL and Ob groups. No significant difference in the amount of mandibular setback was found between the two groups. Comparing values at T1 and T2, the proximal segments tended to rotate backward in the SL group, but there was no significant difference in the anterio-posterior position of proximal segments between the two groups. Comparing values at T2 and T3, counter-clockwise rotation of proximal segments was seen in the SL group but not in the Ob group. It is likely that this rotation of proximal segments in the SL group was caused by the muscular strength of MPM attached mainly to the proximal segments. Moreover, a significant negative correlation in the amount of rotation of proximal segments was detected between T1-T2 and T2-T3 in the Ob group, but not in the SL group.These findings indicate that special attention to the rotation in SL cases is important since a wider variation in the rotation of proximal segments may occur compared with the Obwegeser method.

著者

小林 正治 小田 陽平 長谷部 大地 加藤 健介 新美 奏恵 中里 隆之 泉 直也 高田 佳之 福田 純一 高木 律男 齊藤 力

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.16, no.3, pp.153-160, 2006-08-15 (Released:2011-02-09)

参考文献数

16

被引用文献数

2 12

---

To assess whether patients were satisfied with the results of treatment, questionnaires were sent to 291 patients who had undergone orthognathic surgery for correction of jaw deformities and 133 questionnaires were returned with valid answers. The chief problem of 94 (71%) of these patients was appearance. Dysfunctions such as masticatory disturbance and speech difficulties were the primary reason for which 38 (29%) of the patients sought treatment. Seventy-five percent of the patients answered that they were satisfied with the results in regard to their chief problems. A favorable change in appearance was recognized by 125 patients, whereas five patients noticed no major changes and three patients were displeased with their postoperative faces. The patients'evaluations of their appearance seemed to be influenced by the responses of other peoPle to the surgical-results, and objective improvements did not always satisfy their expectations. Improvements in masticatory function and speech were recognized by 92 and 54 patients, respectively. Eighty patients had TMJ signs and symptoms such as click and/or pain before treatment, which disappeared in 53 (66%) of the symptomatic patients after the surgery. On the other hand, TMJ signs and symptoms appeared postoperatively in 7 (15%) of 47 patients without those before treatment. Psychologically, 42 patients noted favorable changes in personality after the surgery. Eight patients with mandibular set back noted the onset or worsening of snoring after the surgery.

著者

佐藤 修一 川村 仁 長坂 浩 高橋 善男 茂木 克俊 大森 勇市郎 菅原 準二 三谷 英夫

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.2, no.1, pp.19-24, 1992-04-30 (Released:2011-02-09)

参考文献数

13

---

Broad soft-tissue pedicle genioplasties were performed in 6 patients by horizontal osteotomy of the inferior border of the mandible, with preservation of a musculoperiosteal pedicle to the genial segment. Preoperative, immediate postoperative, and long-term follow-up lateral cephalometric radiographs were retrospectively analyzed to evaluate the osseous and soft-tissue changes of the chin. After a mean follow-up period of 29 months, all cases preserved the initial advancement. No case showed bone resorption from pogonion to the menton region.The chins advanced by broad soft-tissue pedicle genioplasty had good stability.

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.29, no.2, pp.178-201, 2019 (Released:2019-06-24)

著者

伊藤 亜希 小林 正治 松崎 英雄 田中 潤一 大畠 仁 高野 伸夫 齊藤 力

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.17, no.4, pp.229-237, 2007-12-15 (Released:2011-02-09)

参考文献数

29

被引用文献数

3 8

---

This study investigated the relation between personality characteristics and types of jaw deformities and evaluated the influence of orthognathic surgery on personality characteristics.The subjects consisted of 52 patients (16 males and 36 females) in whom jaw deformities were surgically corrected and the mean age at surgery was 26.3 years. They were divided into four groups based on the types of jaw deformities such as mandibular protrusion with or without maxillary retrusion, mandibular retrusion with or without maxillary protrusion, open bite and asymmetry.Personality characteristics were analyzed using Minnesota Multiple Personality Inventory (MMPI) and Rosenberg's Self-Esteem Scale before and six months after surgery, and the Kruskal Wallis test and t-test were used for statistical analyses.Preoperative MMPI scores were not significantly different from normal values of their generation as a whole, but the distribution of Depression Scale and Self-Esteem Scale scores among the four groups were significantly different. The Depression Scale score in the asymmetry group was higher than those in the other groups and the Self-Esteem Scale score in the asymmetry group was lower than those in the other groups. After surgery, the Depression Score decreased in the asymmetry group and the Self-Esteem Scale score increased in all groups except the open bite group.In conclusion, it is considered that patients with asymmetry are likely to have an inferiority complex and orthognathic surgery for such patients has a favorable effect on personality characteristics because the deformity and the change of full-face appearance are easily recognized by themselves.

著者

中村 麻里奈 櫻井 博理 菊地 憲明 飯野 光喜 五十嵐 一吉

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.27, no.1, pp.8-16, 2017-04-15 (Released:2017-05-02)

参考文献数

21

被引用文献数

2

---

Treatment for cases with midface hypoplasia such as Apert syndrome and Crouzon syndrome should aim to achieve well-harmonized occlusion and maxillofacial morphology. To date, orthodontic treatments using Le Fort Ⅲ osteotomy concomitant with Le Fort Ⅰ or Ⅱ osteotomy have been reported. In this paper, we present a case with Apert syndrome treated by Le Fort Ⅲ distraction osteogenesis (LFⅢDO) followed by open rhinoplasty with iliac bone grafting and Le Fort Ⅰ osteotomy.The patient was a 16-year-old girl with Apert syndrome. She was characterized by severe midface hypoplasia representing skeletal Class Ⅲ occlusion with open bite. After the completion of preoperative orthodontic treatment, 12mm of midface advancement was performed by LF Ⅲ DO by using an internal distraction device. After the DO, although anterior open bite was slightly worse, midface hypoplasia and proptosis were significantly improved. Open rhinoplasty with iliac bone grafting was carried out 2 months after the LF Ⅲ DO. 5 months after the rhinoplasty, Le Fort Ⅰ osteotomy was performed to correct the anterior open bite.As a result, well-harmonized occlusion and maxillofacial morphology were achieved by close cooperation between the orthodontist, oral and maxillofacial surgeons and plastic surgeons.

著者

飯野 光喜 新津 恒太 中村 芳樹 大谷 宣夫 福田 雅幸

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.12, no.2, pp.77-83, 2002-08-15 (Released:2011-02-09)

参考文献数

14

被引用文献数

3 5

---

The aim of this article is to discuss the effectiveness of clockwise rotation of the occlusal plane for skeletal class III deformities with the use of two-jaw surgery.The most popular orthognathic surgical management for class III malocclusion is mandibular setback using a bilateral sagittal splitting ramus osteotomy (SSRO). However, it has been suggested that, with the aid of an operative method using SSRO alone, complete elimination of the protruded appearance in the mental region is hardly attainable, in some cases. To obtain better functional and esthetic results for patients with class M deformities, clockwise rotation of the occlusal plane, using two-jaw surgery, appears to be considerably useful surgical management. The changes provided by an increased occlusal plane angle include 1) advancement of the midface; 2) rotation of the chin posteriorly; 3) a decreased maxillary incisor angle; 4) an increased mandibular plane angle; 5) decreased posterior facial height. We emphasize that, by appropriate usage of clockwiserotation of the occlusal plane, more favorable functional and esthetic results for the correction of skeletal class deformity will be enabled in some cases.

著者

藤本 絢子 吉川 仁育 富永 憲俊 西村 眞 美馬 孝至 岡藤 範正

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.27, no.3, pp.183-189, 2017-08-15 (Released:2017-09-14)

参考文献数

16

被引用文献数

4

---

In the field of jaw deformities, there has been an increase in the number of middle-aged and elderly patients selecting surgical correction in recent years. However, treatment of these patients might be difficult because of poor oral condition such as edentulous jaws and tooth loss. Under these conditions, an interdisciplinary approach including orthodontics, oral surgery and prosthodontics is required for the treatment of jaw deformity. We report a patient with edentulous jaws who was treated with orthognathic surgery using the interdisciplinary approach.The patient was a 42-year-old male diagnosed with mandibular protrusion. He was at risk of chronic diseases of the mouth, including dental infection and tooth loss. As a result of diagnosis of prosthodontics, all teeth were extracted to correct severe oral hygiene. Before corrective jaw surgery, wax dentures were made on the assumption of post-surgery oral condition. By using the wax dentures, dental implants were positioned on the edentulous jaws and provisional teeth were made. Regarding orthognathic surgery, intraoral vertical ramus osteotomy was performed on the right side of the mandible and sagittal split ramus osteotomy was performed on the left side. Twelve months later, osteotomy was performed and the final stage of prosthodontic treatment was started.Following this interdisciplinary approach to jaw deformity treatment, the patient with edentulous jaws is satisfied with the stable occlusion and better facial contour.

著者

Diner Patrick A. A. Picard C. Tomat

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.23, no.2, pp.37-39, 2013

著者

吉田 憲司 松尾 直子 金子 道生 深谷 昌彦

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.4, no.1, pp.42-44, 1994-04-30 (Released:2011-02-09)

参考文献数

4

---

We developed the convenient measuring device of spine curvature from a lateral aspect to evaluate general symptoms of mandibular prognathism patients who apparently need surgical correction.The device enabled convenient measurement of the spine curvature of patients from a lateral aspect without affections the patients.

著者

竹山 雅規 森田 修一 山田 秀樹 武藤 祐一 齊藤 力 高木 律男 花田 晃治

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.13, no.3, pp.105-110, 2003-12-15 (Released:2011-02-09)

参考文献数

17

被引用文献数

1

---

This study investigated the soft tissue profile change of the chin following genioplasty. The subjects were 20 females who underwent genioplasty. They were divided into two groups depending on the directions of surgical displacement of the chin. In 11 patients anterior repositioning was made (forward movement group) and in 9 patients posterior repositioning was made (backward movement group).For each patient, lateral cephalograms taken preand postoperatively were traced and superimposed, and then linear measurements were obtained.The results were as follows: 1. There were differences in soft tissue reaction to hard tissue displacement between the forward movement group and backward movement group.2. In the forward movement group, the size of the chin increased as a result of further forward displacement of soft tissue pogonion in spite of forward displacement of lower labial sulcus. In the backward movement group, the size of the chin decreased as a result of backward displacement of soft tissue pogonion and forward displacement of lower labial sulcus.3. The horizontal displacement ratio of soft tissue pogonion to pogonion was 148% in the forward movement group, and 33% in the backward movement group.4. There was a significant positive correlation between the horizontal change of pogonion and soft tissue pogonion, horizontal change of menton and soft tissue menton, horizontal change of pogonion and the size of the chin, and horizontal change of menton and the size of the chin. On the other hand, in the forward movement group, there was no correlation between skeletal changes and soft tissue changes of the chin.

著者

黒江 和斗 小椋 幹記 園田 悟 三村 保

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.5, no.1, pp.31-36, 1995-04-30 (Released:2011-02-09)

参考文献数

18

被引用文献数

1 2

---

Morphological features of the mandible were evaluated by cephalometric analysis of 44 patients with surgically operated skeletal mandibular protrusion. The results were as follows:1. The mandibular condyle was narrow and long and the condyle was high in the mandibular protrusion. Mandible and mandibular body were long, mandibular notch was deep, gonial angle was wide and the ramus inclined forward.2. The small anteroposterior diameter of the mandibular condyle were related to the long mandibular length, the long mandibular body length, the high ramus height and the forward inclined ramus. High condylar height was related to the long mandibular length, the short anteroposterior diameter of the ramus, the wide gonial angle and the forward inclined ramus.3. From these findings, it might be suggested that the mandible in patients with surgically operated skeletal mandibular protrusion had the characteristics of underdevelopment.

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.13, no.Supplement, pp.141-152, 2003 (Released:2011-02-09)

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.14, no.3, pp.226-241, 2004-12-15 (Released:2011-02-09)

著者

齊藤 力

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.25, no.2, pp.59-60, 2015 (Released:2015-06-12)

著者

島峯 隆浩 米満 郁男 渋谷 直樹 纐纈 美沙子 今井 治樹 藤田 紘一 大村 進 小野 卓史

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.28, no.3, pp.226-234, 2018 (Released:2018-09-28)

参考文献数

38

被引用文献数

2

---

This study aimed to compare cephalometric changes in the upper airway morphology, including the hyoid bone position, after the conventional Le Fort I (LF) osteotomy, and an LF and horse-shoe osteotomies. Twenty-two patients diagnosed as having skeletal maxillary protrusion at the Department of Oral and Maxillofacial Surgery/Orthodontics, Yokohama City University Medical Center, were included. They were divided into two groups as follows: 13 patients underwent LF and sagittal split ramus osteotomies (LF group); and 9 patients underwent LF, horse-shoe and sagittal split ramus osteotomies (HS group). The following linear variables were measured on lateral cephalometric radiographs taken before (T0), immediately after (T1), and 1 year after (T2) surgery: palatal pharyngeal space (PPS), the length from the posterior pharyngeal wall to the posterior nasal spine (PNS); superior posterior palatal space (SPPS), the length from the posterior pharyngeal wall to the middle point between the PNS and the lowest point of the soft palate; middle posterior palatal space (MPS), the length from the posterior pharyngeal wall to the lowest point of the soft palate; inferior posterior palatal space (IPS), the length from the posterior pharyngeal wall to the tongue passing the lowest point of the second cervical vertebra; epiglottic pharyngeal space (EPS), the length from the posterior pharyngeal wall to the tongue passing the front end of the epiglottis; S-H, the length from the lowest point of the hyoid bone to the Sella; and C3-H, the length from the lowest point of the hyoid bone to the lowest front point of the second cervical vertebra. Statistical analyses were performed using the Mann-Whitney U test. P values of <0.05 indicated statistical significance. SPPS and MPS decreased at T2 in the HS group. IPS and EPS increased at T1 in both groups but decreased at T2 in the HS group. S-H decreased at T1 in both groups and at T2 in the LF group. C3-H increased at T1 in both groups but decreased at T2 in the HS group. The anteroposterior diameter of the oropharynx was unchanged in the LF group because the tongue moved upward after the palate moved upward but changed in the HS group because the tongue moved backward and the oral volume decreased due to the absence of palatal segment movement. In conclusion, the anteroposterior diameter of the oropharynx decreased after backward and upward movements of the maxilla by LF and HS in the patients with skeletal maxillary protrusions.

著者

廣瀬 美帆 吉田 建美

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.17, no.3, pp.221-228, 2007-08-15 (Released:2011-02-09)

参考文献数

20

---

For orthodontists, it is important to maintain the stability of occlusion and soft tissue after orthodontic treatment. This article presents a patient orthodontic retreated with glossectomy 13 years after orthognathic surgery. The patient was a 33-year-old female. She had undergone orthognathic surgery at 19 years old.Although glossectomy had been recommended because of macroglossia tendency at that time, it was not per-formed. Thirteen years after orthognathic surgery, unstable occlusion and exposure of lower incisor tooth roots developed. The countermeasure against this condition, orthodontic treatment with glossectomy and gingival transplant, was taken, as she was willing to accept any necessary treatment. As the re-treatment result was good, we report it.

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.18, no.2, pp.96-105, 2008 (Released:2011-02-09)

出版者

特定非営利活動法人 日本顎変形症学会

雑誌

日本顎変形症学会雑誌 (ISSN:09167048)

巻号頁・発行日

vol.25, no.4, pp.259-271, 2015-12-15 (Released:2015-12-25)