著者

露木 基勝 大儀 和彦 今井 裕一郎 青木 久美子 山本 一彦 桐田 忠昭

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.53, no.7, pp.430-434, 2007-07-20 (Released:2011-04-22)

参考文献数

31

被引用文献数

1

---

An odontoma is an odontogenic, tumor composed of enamel, dentine, and cementum, commonly less than 30 mm in diameter. We describe a large compound odontoma arising in the left anterior region of the mandible.A 16-year-old boy was referred by an orthopedist to our hospital for evaluation of a radiopaque lesion in the left side of the mandible. Clinical examination revealed a bony-hard swelling in the left anterior region of the mandible at presentation. The left mandibular canine and lateral incisor were not erupted. Radiographic and CT examinations showed a large, circumscribed, radiopaque lesion, measuring 30×40×28mm and surrounded by a thin radiolucent area accompanied by two impacted teeth. There were many small tooth-like structures within the lesion. The clinical diagnosis was odontoma. The tumor and the impacted teeth were surgically removed by an intraoral approach under general anesthesia. The tumor was covered by a thin capsule and consisted of 321 small tooth-like structures. The histopathological diagnosis was a compound odontoma. The clinical course has been uneventful for 4 years 3 months after surgery.

著者

河合 俊彦 後藤 満雄 梅村 昌宏 湯浅 秀道 石井 興 内田 和雄 木下 基司 河合 幹

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.41, no.11, pp.997-999, 1995-11-20 (Released:2011-07-25)

参考文献数

12

被引用文献数

1 1

---

A prospective study was undertaken to evaluate dry socket (alveolar osteitis) in 1146 patients who surgically underwent extraction of impacted third molars. Dry socket occurred at a total rate of 5.4%; 27 cases occurred in males and 35 in females. There were no sexual differences. The prevalence of dry socket was highest: patients 40 years of age or over, followed by those from 30 to less than 40, 20 to less than 30, and under 20 years old.

著者

青柳 直子 喜久田 利弘 鰺坂 正秋 池山 尚岐 梅本 丈二 嶋村 知記

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.54, no.3, pp.140-144, 2008-03-20 (Released:2011-04-22)

参考文献数

23

被引用文献数

1

---

An air-turbine handpiece is used for bone cutting and tooth dissection during extraction of an impacted lower third molar. However, subcutaneous emphysema and mediastinal emphysema may develop as advanced complications. Six patients had emphysema caused by the use of an air-turbine handpiece in our department during the last 10 years. Mediastinal emphysema developed in 3 patients. The route of the air was examined by CT scanning. The findings suggested that the air extended from a lingual sparse part of the extraction cavity to the sublingual space, submandibular space, masticator space, pterygomandibular space, lateral parapharyngeal space, carotid sheath, retropharyngeal space, and finally to the mediastinum. Since the pterygomandibular space communicates with the contralateral side, air easily invades this region.

著者

三木 浩三 松村 智弘 森下 正明 難波 和之 木下 文夫

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.24, no.3, pp.549-552, 1978-06-15 (Released:2011-07-25)

参考文献数

9

被引用文献数

1

著者

住田 知樹 加藤 友美 吉村 友秀 村瀬 隆一 中城 公一 浜川 裕之

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.55, no.9, pp.463-466, 2009-09-25 (Released:2012-08-28)

参考文献数

14

被引用文献数

3 7

---

Methotrexate (MTX) has been proven to be effective for the treatment of rheumatoid arthritis (RA)and is believed to be nononcogenic when a low weekly dose is administered to patients with RA. However, wereport the case of a 71-year-old man with RA who was treated for 11 years with MTX and developed B cell non-Hodgkin's lymphoma (BNHL) in the oral cavity. The tumor was localized in the right maxilla extranodally.Microscopic examination of a biopsy specimen revealed a non-epithelial tumor pattern and showed BNHL inwhich large cells with pleomorphic nuclei invaded the muscle tissue. These large cells tested strongly positive forEpstein-Barr virus encoded small RNAs-in situ hybridization (EBER-ISH) and CD20 antibody. We immediatelystopped MTX administration; however, only minimal shrinkage of the tumor was observed. Therefore, we performedantibody treatment with rituximab. After chemotherapy, complete remission was achieved. To date, thepatient is healthy, with no evidence of tumor recurrence during 32 months of follow-up. The development of anextranodal lymphoma in the oral cavity in a patient with RA who received MTX has not been reported previously.Therefore, this case is considered extremely rare.

著者

松木 良介 竹之下 康治 大山 順子 清木 祐介 佐々木 匡理 堀之内 康文 白砂 兼光

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.51, no.12, pp.590-595, 2005-12-20 (Released:2011-04-22)

参考文献数

10

被引用文献数

2 2

---

Removal of mandibular third molars is one of the most common operations in oral surgery. Hypoesthesia of the lower lip occurring after the extraction of third molars is a serious complication, requiring a prolonged time for recovery. In this study, we investigated factors potentially affecting the incidence of hypoesthesia.A total of 781 mandibular third molars extracted at our clinic in 2002 were examined. There were 17 cases (2.2%) of hypoesthesia of the lower lip. There was no relation of gender, difficulty of extraction, or the skill of the operator to the incidence of hypoesthesia. In contrast, the incidence of hypoesthesia strongly correlated with age and the root position of mandibular third molars with respect to the mandibular canal.Eleven of the 17 cases of hypoesthesia (64.7%) resolved within 1 month, and 16 of the 17 cases (94.1%) resolved within 6 months. The patients who had hypoesthesia for more than 1 monthwere significantly older than those who recovered from hypoesthesia within 1 month and were all female.These results might be useful when informing patients about potential complications of tooth extraction.

著者

平木 昭光 窪田 泰孝 堀之内 康文 竹之下 康治 山城 崇裕 白砂 兼光

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.52, no.10, pp.551-555, 2006-10-20 (Released:2011-04-22)

参考文献数

15

---

We describe three patients (1 man and 2 women; age, 28 to 83 years) with herpes zoster of the trigeminal nerve that developed after dental treatment. The patients presented with toothache or periodontal disease as initial symptoms. Ten cases of herpes zoster occurring after dental treatment, have been reported previously. The initial symptom was toothache or periodontal tissue discomfort in most cases, and the age of the patients ranged from 7 to 73 years. Symptoms of herpes zoster appeared within 2 days after dental treatment in half of the patients. Although the relation between dental treatment and the occurrence of herpes zoster is unclear, we should include herpes zoster in the differential diagnosis when a patient presents with toothache or periodontal tissue discomfort.

著者

杉山 芳樹

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.60, no.5, pp.251, 2014

著者

高橋 祥一郎 後藤 昌昭 岡 増一郎 田代 英雄

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.25, no.5, pp.967-972, 1979-10-15 (Released:2011-07-25)

参考文献数

31

被引用文献数

1 2

著者

友寄 英基 久保 四郎 村橋 護 小谷 勝 加藤 洋一 石川 信広 中條 英俊 高橋 孝二 山本 悦秀 小浜 源郁

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.31, no.10, pp.2290-2296, 1985-10-20 (Released:2011-07-25)

参考文献数

17

---

From 1976 to 1984, 126 cases with angular fractures of the mandible were treated in Department of Oral Surgery, Sapporo Medical College Hospital. These were analysed clinicostatistically and the following results were obtained:1) Age of patients distributed widely with peak of second and first (74.6%).2) Fight injuries were the most frequent (32.5%) followed by traffic accidents (27.8%), athletic injuries (18.3%), work accidents (11.9%), and falls (9.5%).3) Wisdom teeth were 88.3% of the line of angular fractures of the mandible and the extraction of wisdom teeth in the line of angular fractures of the mandible were carried out in 46.0%.4) The procedure of wisdom teeth in the line of angular fractures of the mandible must be decided for each individual case, i. e., vitality, periodontal disease, luxation and positions of these teeth and degree of displacement of the bone fragment.

著者

金丸 祥平 新垣 晋 芳澤 享子 西山 秀昌 程 珺 小林 正治

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.64, no.7, pp.423-428, 2018-07-20 (Released:2018-09-20)

参考文献数

21

---

Sarcomatous transformation of fibrous dysplasia (FD) is an extremely rare event. We report a case of low-grade central osteosarcoma (LGCO), which arose secondarily from FD of the mandible. A 35-year-old woman, who had regularly been followed up for a 19-year period for a diagnosis of FD, presented with a painful swelling in right mandibular body. On computed tomographic images, the right mental area was prominently expanded with the eroded cortex, and its inner part was entirely filled with an inhomogeneously enhanced lesion. Since a biopsy specimen taken from the anterior lesion was diagnosed to be LGCO, a segmental mandibulectomy and reconstruction with a fibula free flap was performed. There has been no sign of recurrence or metastasis as of 7 years after surgery. It is important to make a diagnosis and a treatment plan in patients with FD because malignant transformation of FD occurs rather infrequently.

著者

劉 文憲 古賀 千尋 岩本 修 木原 俊之 亀山 忠光

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.46, no.1, pp.46-48, 2000-01-20 (Released:2011-07-25)

参考文献数

5

---

We usually use Vitapex® as a root canal filling. This report describes a case of inferior alveolar nerve hypoesthesia caused by overfilling a root canal with Vitapex®.Case: A 23-year-old woman was referred to our hospital because of hypoesthesia of the inferior alveolar nerve.She had undergone treatment of 7 with root canal filling using Vitapex® one week earlier at another clinic. On the following day, she had hypoesthesia of the skin of the right side of the chin. X-ray examination showed a radiopacity in the right mandibular canal.After 4 months of conservative management, hypoesthesia decreased.Soon after, we extracted 7.Her subsequent course has been uneventful, and only a small hypoesthestic area remains.

著者

山田 利治 河原 康 佐野 大輔 渡邉 裕之 小澤 総喜 神谷 祐司

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.54, no.4, pp.248-252, 2008-04-20 (Released:2011-04-22)

参考文献数

16

被引用文献数

1 1

---

We report a rare case of brain abscess secondary to mandibular odontogenic infection. A 50-year-oldman developed an abscess of the infratemporal fossa, masticatory myositis, and temporal myositis caused bylower first molar marginal periodontitis. Incision and drainage were performed by an intraoral approach, andantibiotics were administered intravenously. On the 8th disease day, vomiting occurred, but responded to anantiemetic drug. On the 9th disease day, extraction of lower first molar and adrasion was performed, resulting inthe alleviation of local symptoms. However, a persistent headache occurred, CT and MRI scans revealed a brainabscess and subdural abscess in the temporal lobe, immediately above the skull internal base. The patient wasgiven a diagnosis of brain abscess caused by odontogenic infection. The abscess almost disappeared after conservativetherapy administered at the department of brain surgery, and no sequelae were noted. The abscess apparentlyexpanded directly and continuously from the skull base through the foramen ovale and foramen spinosum.This case emphasizes the need to diagnose brain abscess and subdural abscess as complications of odontogenicinfection.

著者

佐野 和生 荒木 正弘 小川 晶子 簔田 雄二 寺崎 宏 村上 秀樹 二宮 秀則 弘中 亮治 伊東 弦 北村 晃 井口 次夫

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.33, no.8, pp.1684-1690, 1987-08-20 (Released:2011-07-25)

参考文献数

17

---

Thirty patients with the temporomandibular disorders were treated with “Kakkonto”, one of the most famous traditional drugs for chronic diseases with pain.“Kakkon-to” was given orally in a dosage of 7.5g 3 times daily before meals for two weeks. Clinical evaluation was carried out at seventh and fourteenth day after administration about spontaneous pain, pain with jaw movement, muscular tenderness, complications, and side effects. These symptoms were rated on a scale of 0 to 3 (0=no symptom and 3=severe). Two cases were dropped because of further administration of another analgesic for severe temporomandibular joint pain. 22 of 28 (78.6%) patients were improved at the therapy completion. 6 cases (21.4%) showed significant improvement, most of those had complications such as stiff shoulder and headache. Side effects were observed in 5 cases, such as slight nausea, vomiting and so on. It is suggested that “Kakkon-to” is a useful drug for temporomandibular disorders.

著者

木下 一彦 水野 裕和 日比 英晴

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.65, no.6, pp.424-428, 2019-06-20 (Released:2019-08-20)

参考文献数

17

---

A case of multiple sialolithiasis in the submandibular gland and duct is reported. A 71-year-old man was referred to the Department of Oral and Maxillofacial Surgery in our hospital. He had no symptoms in the right submandibular region, but panoramic radiography and computed tomography showed multiple calculi in the right submandibular gland and duct. The patient underwent excision of the right submandibular gland with Wharton’s duct including multiple stones. A total of 332 sialoliths were detected, and the submandibular gland tissues were normal histopathologically. The postoperative period was uneventful, and the patient recovered without any complications. This is a rare case with the largest number of sialoliths ever reported.

著者

吉田 雅之 大月 佳代子 大西 正俊

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.50, no.6, pp.368-371, 2004-06-20 (Released:2011-04-22)

参考文献数

9

---

Difficulty in extracting a foreign object embedded in tissue of the oromaxillofacial region is not uncommon. Arthroscopic surgery is often used to treat conditions of the temporomandibular joints. We successfully extracted foreign objects embedded in a cul-de-sac facial gunshot wound adjacent to the temporomandibular joint, using a rigid endoscope originally designed for temporomandibular arthroscopic surgery. The procedures used are described in this report.The patient was a 46-year-old man who had been shot in the left side of the face. The bullet lodged in tissue medial to the left temporomandibular joint and sphenoidal sinus. Without any additional incision, a temporomandibular arthroscope was introduced from the point of entry of the bullet beneath the eye socket with the patient under general anesthesia. A total of 34 objects, including the bullet, its fragments and glass fragments from the patient's eyeglasses, were endoscopically extracted with the use of a grasping forceps. Arthroscopic monitoring permitted visual confirmation of the foreign bodies and enabled their successful extraction with minimal invasion.

著者

鹿嶋 光司 黒川 英雄 高森 晃一 井川 加織 市來 剛 迫田 隅男

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.53, no.7, pp.420-424, 2007-07-20 (Released:2011-04-22)

参考文献数

10

---

We report the a successful intensive care of a 41-year-old man, who had facial and cervical cellulitis, descending necrotizing mediastinitis, and bilateral pyothorax caused by pericoronitis. Computed tomographic scans showed abscesses extending from the left temporal region and the neck to the mediastinum, with bilateral pleural effusion. Surgical drains were placed in the face, neck, and chest, and several types of antibiotics were administered intravenously. Pus cultures disclosed abundant growth ofStreptococcus constellatesandPrevotella intermedla. The patient received mechanical ventilation with a high concentration of oxygen. Our experience suggested that such severe cases require aggressive chemotherapy with a combination of antibiotics and surgical drainage by a multidisciplinary team of surgeons.

著者

豊福 明

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.55, no.4, pp.163-168, 2009-04-20 (Released:2012-08-28)

参考文献数

25

被引用文献数

1 2

---

In dry mouth clinic, there are many patients who complained of subjective feelings of dry mouth despite their normal salivation. This dry mouth frequently comorbid with glossodynia or oral dysaesthesia. So far, these complaints have been thought to be ‘psychogenic’. Namely, psychosocial factors and/or individual factors have long been considered as main cause. Even if oral surgeons referred patients to psychiatry clinic, a majority of them wished to avoid consultation, or, would sometimes complain that the dry mouth got worse after medication. Therefore, it is very important and difficult problems for clinical oral surgeons to see how look at these patients and to learn how cope with them.From my own years of experience in psychosomatic studies, I think ‘distorted cognition ’ is central to these pathogenesis. These distorted cognition cause dissociations between subjective and objective findings. Moreover, I have propose a hypothesis that neurochemical dysfunction of some sort of neurotransmitter systems and distortions of information-processing in cerebral association area related to thought and memory underlie the distorted cognition.Patients with subjective dry mouth never tell a lie about their symptoms, but they have just ‘ neural network error’ in their brain. We should take up to problems of oral discomfort at the root of their complaint.If we suspect their complaints as the cause of psychogenic, it might be often unsuccessful in treatment. First of all, to listen carefully to complaints from them is very important, and then we have to do differential diagnosis. If patients are diagnosed the symptom form with distorted cognition, medication using SSRI or SNRI is necessary for reconstruction of impaired neuronal network. Of course oral surgeons have to receive advanced education and training to use psychotropic drugs. At the same time, it is needed for sensitive response to patients and family members.The distorted cognition with these patients are associated with dysfunction of neurotransmitter systems and information-processing in peripheral to higher central nervous system. Strange complaints and persistent therapeutic demand are representatives of the distorted cognition. If we regard queer complaints as neural network errors, we can see the psychogenic complaints as distorted cognition.At present, this hypothesis cannot be shown objectively, but it might be possible that some new approaches such as brain imaging make mechanisms of the distorted cognition more clear. It is very important to collect evidence-based diagnosis, therapies and pathophysiological mechanism for dry mouth as an oral psychosomatic disorder.

著者

河野 峰 柴田 敏之 永易 裕樹 北所 弘行 中田 大地 有末 眞

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.44, no.1, pp.16-21, 1998-01-20 (Released:2011-07-25)

参考文献数

13

---

We studied whether epidermal growth factor (EGF) enhances the motility of human oral squamous cell carcinoma (SCC) cells in an autocrine manner. The motility of five SCC cell lines (SAS, Ca 9-22, HSC-2, -3, -4) was examined with the use of a phagokinetic track assay. The motility of SAS cells and HSC-2 cells was significantly increased without EGF stimulation as compared with the three other cell lines. Amounts of EGF in the culture supernatants of the five cell lines after 48h of culture were examined with the immunoblotting method. EGF was detected in the supernatants of SAS cells and HSC-2 cells (SAS, 8.65±0.45; HSC-2, 2.60±1.13ng/ml). SAS cells, showing the highest levels of motility and EGF production, was used for further study. When SAS cells were treated with anti-EGF antibody, anti-EGF receptor antibody, and erbstatin analog, the motility of SAS cells was significantly inhibited. Furthermore, the culture supernatant of SAS cells enhanced the motility of HSC-3 cells in a concentration-dependent fashion. These results suggest that EGF may stimulate the motility of human oral SCC cells in an autocrine manner.

著者

林 良夫

出版者

社団法人 日本口腔外科学会

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.57, no.5, pp.234-237, 2011-05-20 (Released:2014-05-22)

参考文献数

8

---

Primary Sjören’s syndrome (SS) is an autoimmune disorder characterized by lymphocytic infiltrates and destruction of the salivary and lacrimal glands, leading to clinical symptoms of dryness of the mouth and eyes. Autoreactive T cells bearing CD4 molecule may recognize unknown self antigen, triggering autoimmunity in the salivary and lacrimal glands. Recent evidences suggest that the apoptotic pathway plays a central role in tolerazing T cells to tissue-specific self antigen including 120KD α-fodrin, and may drive the autoimmune phenomenon. Cleavage of certain autoantigens during apoptosis may reveal immunocryptic epitopes that could potentially induce autoimmune response. It is now evident that the interaction of Fas with FasL regulates a large number of pathophysiological process of apoptosis including autoimmune diseases. Our data imply that tissue-specific apoptosis and caspase-mediated α-fodrin proteolysis are involved in the progression of autoimmune lesions in SS. We found that retinoblastoma-associated protein RbAp48 overexpression induces apoptosis in the salivary glands caused by estrogen deficiency. The studies reviewed the pathology and molecular mechanisms on the development of SS.