著者

小島 拓 芳澤 享子 小野 由起子 倉部 華奈 加納 浩之 齊藤 力 小林 正治

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.25, no.3, pp.234-240, 2015-08-15 (Released:2015-09-12)

参考文献数

21

被引用文献数

3

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We present three cases in whom mental disorders appeared after orthognathic surgery.The first case was a 35-year-old female who had a history of depression. After the operation, a manic state appeared and she was diagnosed with bipolar disorder. Her medicine was changed from an antidepressant to a mood stabilizer, after which her mental condition stabilized.The second case was a 34-year-old male. He could not accept the appearance of his postoperative face, and it took about three months for him to finally accept his new appearance.The final case was a 37-year-old female. She could not accept the appearance of her postoperative face because it was not what she had expected. She began to complain about her face and became depressive, and was finally diagnosed with major depressive disorder. After administration of an antidepressant, her mental condition gradually improved.We must take into consideration the possibility that patients will develop mental disorders after orthognathic surgery, and adequate explanation and patient assessment before the operation are therefore important.

著者

小島 拓 長谷部 大地 加藤 祐介 倉部 華奈 船山 昭典 新美 奏恵 加納 浩之 齊藤 力 小林 正治

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.26, no.3, pp.237-242, 2016-08-15 (Released:2016-09-14)

参考文献数

22

被引用文献数

2 2

---

Peripheral facial nerve palsy following orthognathic surgery is a rare complication. We discuss the incidence of this complication, its possible causes, subsequent treatment and ultimate outcomes.A total of 910 patients underwent orthognathic surgery in our department during the period from 2001 to 2015. Five (0.55%) of those patients had peripheral facial nerve palsy postoperatively. The postoperative day when facial nerve palsy occurred ranged from day 1 to day 13. All of the cases were unilateral and included lip motility disturbance, difficulty in closing the eyes and inability to wrinkle the forehead. All of the patients received medication with an adrenocortical steroid and vitamin B12. Stellate ganglion block and physical therapy were also used for the patients who had moderate to severe facial nerve palsy. Complete recovery was achieved in all but one of the patients, in whom slight palsy remained. There were several possible causes of facial nerve palsy including abnormal bleeding, postoperative swelling, and handling of operating instruments.In conclusion, peripheral facial nerve palsy after orthognathic surgery is relatively rare. If it occurs, however, complete recovery can be expected in most cases.

著者

布田 花子 森田 修一 山田 秀樹 花田 晃治 齊藤 力 高木 律男

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.3, pp.85-93, 2002-12-15 (Released:2011-02-09)

参考文献数

16

被引用文献数

1

---

The purpose of this study was to investigate the changes of the soft tissue profile in the nose following Le Fort I osteotomy in skeletal Class III patients.The subjects were 30 females who underwent twojaw surgery to correct anterior reversed occlusion, and who were classified into three groups according to the directions of surgical displacement of the maxilla.1. Advancement-Impaction group (n=11)2. Advancement group (n=12)3. Advancement-Downgraft group (n=7)For each patient, lateral cephalograms, taken preoperatively and postoperatively, were traced and superimposed, and linear and angular measurements were obtained. And, alinasal width was measured on frontal facial photographs taken preoperatively and postoperatively. These data from the three groups were compared.The results were as follows:1. In the Advancement-Impaction group, Pronasale and Subnasale were displaced in the upward and forward direction after Le Fort I osteotomy.2. In the Advancement group, Pronasale and Subnasale were displaced in the forward direction after surgery.3. In the Advancement-Downgraft group, Pronasale was displaced in the forward direction, and Subnasale was displaced in the downward direction.4. Alinasal width was increased in the three groups with advancement of the maxilla.In conclusion, there were differences in the postoperative changes of the nose, with different movement of the maxilla.

著者

古田 治彦 久保 誼修 堀内 薫 小渕 匡清 白数 力也

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.10, no.1, pp.81-87, 2000-04-15 (Released:2011-02-09)

参考文献数

16

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For surgical correction of masseteric muscle hypertrophy, Obwegeser-Beckers method, removal of the exostoses at the mandibular angle, is usually performed. However, it is difficult to obtain satisfactory esthetic results by this conventional method. In this paper, a new surgical technique to easily obtain good esthetic results is reported. This technique can remove exostosis at the mandibular ramus without damage to the inferior alveolar neurovascular bundle and surrounding tissue.The method is as follows:1. A Lindemann bar is used to cut through the exterior cortical plate of the ramus and the area of the antegonial notch. Then, a bone saw is used to cut through the cortical plate on an oblique line.2. A splitting chisel is directed and driven inward to the osteotomy line. The exterior cortical plate of the mandibular ramus is removed, and so, this portion has thin, facial esthetics which are improvable.

著者

田中 愛子 府川 俊彦 小林 眞司 山崎 安晴 鳥飼 勝行

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.3, pp.103-112, 2002-12-15 (Released:2011-02-09)

参考文献数

16

被引用文献数

3

---

We present a case of Crouzon disease treated by two-jaw surgery after a Le Fort III osteotomy and bone distraction.The patient was a 17-year, 1-month-old male with facial malformation and malocclusion.At the age of 17 years and 2 months, a Le Fort III osteotomy and bone distraction were performed for midface advancement. After this distraction procedure, orthodontic treatment began for secondary surgery to correct severe openbite, bimaxillary protrusion, and spaced arch.After a partial glossectomy was carried out, preoperative orthodontic treatment commenced. At the age of 19 years and 7 months, a Le Fort I osteotomy and sagittal split ramus osteotomies (two-jaw surgery) were carried out.After postoperative orthodontic treatment, occlusion and the facial profile were improved. Although some spaces developed, the occlusal results were almost preserved throughout the 17 month retention period.

著者

高橋 庄二郎

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.153-169, 2004-12-15 (Released:2011-02-09)

参考文献数

44

被引用文献数

4 4

---

Recently, there have been remarkable developments in the treatment of jaw deformities. Nowadays, surgical correction of jaw deformities is performed at maxillo-facial surgery clinics throughout Japan.This paper discusses the history of surgical treatment for correction of jaw deformities in Japan. It also discusses the rationale behind the author's introduction of the sagittal splitting method of the mandibular rami for treatment of mandibular prognathism, and reports the results of the first and second cases treated using this method in 1969. Then, it discusses various methods used by the author in orthognathic surgery. As a historical background, the development by Prof. Hugo L. Obwegeser of sagittal splitting of the mandibular rami and LeFort I osteotomy, which are among the most important procedures in orthognathic surgery, are introduced. The factors that have influenced the development of the treatment of jaw deformities in Japan are considered, and finally the challenges involved in the treatment of jaw deformities are discussed.

著者

宮本 裟也 佐藤 仁 栗原 祐史 田中 元博 稲田 大佳暢 堅田 凌悟 守谷 崇 安田 有沙 代田 達夫

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.31, no.4, pp.197-203, 2021 (Released:2021-12-22)

参考文献数

23

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Acromegaly is an endocrine disease caused by excessive secretion of growth hormone (GH) after the end of the growth period, due to a pituitary adenoma. Mandibular prognathism, tongue hypertrophy, and bulging of the eyebrow arch are observed in the maxillofacial region. We describe a case with acromegaly for which surgical orthodontic treatment was performed after excision of the pituitary adenoma. A 47-year-old woman who became aware of enlargement of the size of the hands and feet from 35 years old was diagnosed with acromegaly by the Department of Neurosurgery because of a high GH level and a pituitary tumor on MRI. In September 2014, chemotherapy was performed after tumor resection via the nasal cavity. In March 2016, she was referred to the Department of Orthodontics of our hospital for further examination and treatment of malocclusion. Overjet and overbite were −5.0mm and +2.5mm, respectively. The occlusal relationship of the molars was Angle class Ⅲ. Angular analysis of lateral cephalometric analysis showed SNA: 80.0°, SNB: 77.0°, ANB: 3.0°, and FMA: 37.9°. Mandibular prognathism was diagnosed based on a Wits appraisal of −7.1. Since there was no clinical activity of acromegaly and hypertrophy of the hard and soft tissues due to acromegaly had stopped, and serum insulin-like growth factor-1 was well controlled by chemotherapy, orthognathic treatment was started in April 2016 and bimaxillary surgery was performed in January 2019. The occlusal relationship was stable and there was no recurrence at 2 years after the surgery. Since acromegaly has various complications, it is necessary to create a treatment plan considering the complications, and to perform extended follow-up due to the potential for recurrence of the disease.

著者

上床 喜和子 須佐美 隆史 井口 隆人 大久保 和美 岡安 麻里 内野 夏子 髙橋 直子 松林 幸枝 阿部 雅修 末永 英之 森 良之 髙戸 毅

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.26, no.1, pp.26-36, 2016-04-15 (Released:2016-05-20)

参考文献数

32

---

Acromegaly is caused by growth hormone excess owing to a pituitary adenoma after completion of growth and tends to lead to mandibular prognathism. In this paper, two patients with mandibular prognathism caused by acromegaly and treated by surgical-orthodontic treatment are reported. The first case was a 36-year-old male who was referred to our hospital to correct mandibular prognathism and malocclusion after resection of the tumor in the pituitary gland. The second case was a 26-year-old male who was referred from an orthodontic clinic for orthognathic surgery. He had not been diagnosed as acromegaly but a typical double-floor of the Turkish saddle was found in the lateral cephalogram. Blood tests revealed acromegaly. Surgical-orthodontic treatments were performed after resection of the pituitary adenoma and confirmation of normal level of blood growth hormone (GH) and somatomedin C. In both cases, multi-bracket appliances were worn and bimaxillary osteotomy (Le Fort I osteotomy for maxillary advancement and bilateral sagittal splitting ramus osteotomies for mandibular setback) was carried out to secure the intraoral space for the enlarged tongue. After post-surgical orthodontic treatment, the treatment results were good and stable in both cases. These cases showed that surgical-orthodontic treatment for patients with acromegaly after pituitary adenoma resection is reliable. The importance of careful examination of the craniofacial shape in patients with mandibular prognathism to detect acromegaly is emphasized.

著者

外木 守雄 有坂 岳大 塚本 裕介 佐藤 一道 山根 源之 大櫛 哲史 中島 庸也

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.1, pp.9-15, 2007-04-15 (Released:2011-02-09)

参考文献数

16

被引用文献数

10 7

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This study investigated risk factors for obstructive sleep apnea hypopnea syndrome (OSAHS) induced by orthognathic surgery for malocclusion, by analysis of preoperative and postoperative examination findings. In this first report, we discuss the relationship between the findings from the polysomnographic record and the direction of jaw movement during orthognathic surgery. The postoperative Apnea Hypopnea Index was significantly decreased in the group that underwent maxillaryadvancement with or without mandibular movement; however, there was no significant difference between the groups that underwent mandibular movement with and without maxillary movement. Mandibular morphology is frequently considered when evaluating the relationship between the maxillofacial structure and sleep-disordered breathing; our findings also indicated that maxillary morphology is an important factor. Hence, we advocate orthognathic surgery to treat malocclusion when necessary and to take sleep-disordered breathing into consideration. Additionally, we considered that the findings of this study provide important evaluation criteria for determining the indications for orthognathic surgery to treat OSAHS.

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.107-112, 2008 (Released:2011-02-09)

著者

大町 浩史 原田 清 佐藤 昌 盛島 聖子 樺沢 勇司 丸岡 豊 小村 健

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.1, pp.8-11, 2006-04-15 (Released:2011-02-09)

参考文献数

10

---

Soft tissue changes in the chin were compared between patients undergoing sagittal split ramus osteotomy (SSRO) for mandibular setback with and without reduction genioplasty. Twenty patients with symmetrical skeletal Class III malocclusion were examined. Twelve underwent SSRO alone (group I), and 8 underwent SSRO combined with reduction genioplasty (group II). Reduction genioplasty was performed by two horizontal osteotomies, removing the bony wedge, and posterosuperior movement of the inferior segment of the chin. Lateral cephalograms were obtained preoperatively and 6 months postoperatively. Pre- to postoperative changes in the positions of hard-tissue points (B-point [B], pogonion [Ng], and menton [Me]) and soft-tissue B-point [sB], soft-tissue pogonion [sPog], and menton [sMe] were measured on the cephalograms. The ratio of the soft tis-sue movement to the hard tissue movement was also calculated. Though superior movement of Me was significantly larger in group II than in group I, there were no significant differences in the superior movement ratios of sMe to Me between the two groups. However, the posterior movement ratio of sPog to Pog was significantly larger in group I than in group H. These results suggest that the reduction genioplasty performed by two horizontal osteotomies, removing the bony wedge, and posterosuperior movement of the inferior segment of the chin had little effect on the posterior movement of the chin. Therefore, in patients with skeletal class III malocclusion, reduction genioplasty should be applied mainly to vertical shortening of the chin.

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.4, pp.225-248, 2013-12-15 (Released:2014-01-09)

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.22, no.2, pp.101-118, 2012 (Released:2012-09-19)

著者

松崎 雅子 黒田 敬之 城戸 健一

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.9, no.3, pp.149-156, 1999-12-15 (Released:2011-02-09)

参考文献数

19

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The purpose of this study was to investigate acoustically the influence of orthognathic surgery on the phonetic quality of patients with skeletal mandibular protrusion. Samples of speech sounds were collected from nine patients (seven females, two males) before and after orthognathic surgery.The psychoacoustic analysis was carried out by 24 examiners using the paired comparison in naturalness of the five different Japanese words.The acoustic analysis, based on the linear predictive coding (LPC), were applied to determine the lowest two local spectral peaks (Fl, F2) on the vowels. Fl and F2 were compared with the normal speakers, and the changes of Fl and F2 with orthognathic surgery were evaluated using 40 Japanese words.The results were as follows:1) The naturalness of speech has been improved in most patients after orthognathic surgery in the psychoacoustic analysis.2) Distribution of Fl and F2 in patients after surgery approximated that of normal speakers.3) The psychoacoustic and acoustic analyses have a significant correlation. It was suggested that improvement in naturalness of speech is associated with the changes of Fl and F2 by orthognathic surgery.

著者

重政 理香 高野 伸夫 中野 洋子

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.241-248, 2015-12-15 (Released:2015-12-25)

参考文献数

24

被引用文献数

2 2

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Objective: There have been many previous reports about the relationships between jaw deformity and articulation disorders, but most of such studies were conducted in cases with mandibular prognathism. In contrast, well-defined studies have not been conducted to date in patients with retrognathia although it is considered that such patients have articulation disorders because of the relationship with tegmentum in the anterior tooth area and association with abnormality of the perioral muscles. We previously reported on the effects of orthognathic surgery on vowel sounds in patients with retrognathia. The purpose of this study was to investigate the influence of orthognathic surgery on poor articulation of Japanese consonants in cases with retrognathia. Materials and Methods: The eight consonant sounds [ka], [ki], [sa], [ɕi], [ta], [tɕi], [pa], [pi] were recorded as speech samples. The investigation was carried out in 11 Japanese female patients with mandibular retrognathia requiring surgery for jaw deformity and malocclusion both at the preoperative and postoperative stages of 3 and 6 months. These subjects were compared with 10 healthy controls. The duration of the consonant sound and the sound pressure level were analyzed. Results: The duration of the consonant sounds [ka], [ki], [ɕi] and [tɕi] was significantly longer in patients with mandibular retrognathia compared with the controls. The duration of the consonant sounds except [pa] and [pi] after the operation was generally shorter than before the operation. Especially, significant shortening was observed in [ki] in the comparison between before and 6 months after the operation. The sound pressure level for [ki] and [tɕi] was significantly smaller. No significant differences were found in the sound pressure level of the consonant sounds between before and after the operation, but the level was getting larger by 6 months after the operation. Conclusion: In patients with mandibular retrognathia, the duration of consonants was extended especially in the alveolar fricative sound, velar plosive, and alveolar affricate; furthermore, the sound pressure level was low. However, the articulation disorders tended to be reduced at 6 months after orthognathic surgery by correcting the occlusion and jaw position.

著者

片桐 渉 小林 正治 佐々木 朗 須佐美 隆史 須田 直人 田中 栄二 近津 大地 冨永 和宏 森山 啓司 山城 隆 齋藤 功 高橋 哲

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.30, no.3, pp.213-225, 2020 (Released:2020-09-11)

参考文献数

21

被引用文献数

2 2

---

The Japanese Society for Jaw Deformities performed a nationwide survey from 2006 to 2007 and the results were reported in 2008. In the last 10 years, new surgical procedures and medical devices have been developed and brought major changes to surgical orthodontic treatment. Accordingly, we need to assess the current status of surgical orthodontic treatment.A nationwide survey of surgical orthodontic treatment between April 2017 and March 2018 was carried out and 99 surgical facilities and 64 orthodontic facilities were enrolled in the survey. The number of patients who received orthognathic surgery was 3,405, about 69% of whom were diagnosed with mandibular protrusion. Before the surgery, 3D-simulation was performed for about 40% of patients at both surgical and orthodontic facilities. Computer-aided design and computer-aided manufacturing (CAD/CAM) wafers were used at 12.1% of surgical facilities and at 17.7% of orthodontic facilities. Sagittal split ramus osteotomy (SSRO) was performed in 2,768 patients (85.5%) and Le FortⅠosteotomy in 1,829 patients (56.5%). Blood loss during the surgery was reduced compared with that in the previous survey. Autologous blood transfusion tended to be performed in cases as necessary such as surgery for maxilla and anemia of the patient. Duration of intermaxillary fixation and hospital stay were also shortened. This survey revealed the current status of surgical orthodontic treatment in Japan in comparison with the previous survey.

著者

藤沢 孝司 秋山 順史 若杉 正則 松下 文彦 鈴木 浩之 式守 道夫 水野 明夫 橋本 賢二

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.79-83, 1992-04-30 (Released:2011-02-09)

参考文献数

7

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A case of mandibular prognathism with Marfan's syndrome treated with sagittal splitting ramus osteotomy was presented.A 37 year-old man, complaining of difficulty of mouth opening was referred to our clinic. The patient was diagnosed as bilateral temporomandibular joints arthrosis with mandibular prognathism.Although occlusal treatment with bite splint was effective to some extent, intermittent trismus did not disappear, so bilateral sagittal splitting ramus osteotomy was performed to correct his dental malocclusion.Postoperative course was not eventful and his range of mouth opening increased to 35mm between incisal edges of maxillary and mandibular central incisor.

著者

笠原 貴仁 吉武 博美 石井 浩一郎 藤本 拓司 伊東 隆利 伊東 隆三

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.3, pp.230-235, 2008-08-15 (Released:2011-02-09)

参考文献数

10

被引用文献数

1

---

Schizophrenia is an inherent disease that causes disruption of thinking patterns, sensing, self-esteem, will and emotions, resulting in mental disorder involving hallucinations and other mental symptoms.The major complaint of this 21-year-old female patient with skeletal mandibular protrusion was thought to be pain of the temporomandibular region. However, upon careful analysis based on Narrative Based Medicine, the primary concern was the mandibular protrusion with asymmetry inducing multiple psychological symptoms. Combined ortho-surgical intervention was performed to resolve this patient's problem. Although increased antidepressant intake was noted prior to the surgery, once the treatment had been performed, resulting in major improvements of the profile and appearance, dramatic mental and psychological changes for the better were noted, allowing this patient's return to a healthy and normal social life along with decreased dependency on anti-depressant drugs.

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.2, pp.86-93, 2007 (Released:2011-02-09)

著者

永金 則子 岩見 優子 井藤 一江 下田 美和 八塚 尋子 梶山 佳代 天野 有希 丹根 一夫

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.6, no.1, pp.51-62, 1996-04-30 (Released:2011-02-09)

参考文献数

18

被引用文献数

1

---

This study was designed to investigate the patient's recognition of changes in facial profile due to orthognathic surgery. The results of questionnaires were summarized and analyzed in relation to cephalometric data.The subjects consisted of forty-three posttreatment patients (13 males and 30 females) with mandibular prognathism, , who had undergone orthognathic surgery at Hiroshima University Dental Hospital. In this study, patient's recognition of improvement in facial profile was summarized in relation to morphologic changes associated with orthognathic surgery by means of Spearman's correlation analysis.The results were as follows:1. Before treatment, eighty-eight percent of patients were anxious about disharmony of the facial profiles, and the degree of anxiousness was severe in half of them. As for facial areas, the lower lip and chin were their greatest concern.2. After treatment, eighty-four percent of patients recognized improvement in facial profile, and sixty-three percent of patients assessed that their profiles were improved more substantially than expected before treatment. As for facial parts, more than seventy percent of patients mainly recognized improvement in lower lip and chin.3. The patient's recognition of improvement in facial profile, especially chin, exhibited a significantly positive correlation with the amount of mandibular setback during treatment.These results suggested that most patients assessed that improvement in facial profile was achieved by orthognathic surgery. It is shown that their recognition of improvement in their facial profiles is significantly correlated with the amount of mandibular setback.