著者
水柿 雄三 早津 良和 石丸 孝則 楠本 理恵 伊田 正道 篠崎 文彦
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.48, no.8, pp.394-397, 2002-08-20 (Released:2011-04-22)
参考文献数
16
被引用文献数
3

Lethal midline granuloma is a T/natural killer cell lymphoma characterized by progressive ulcerationand necrosis of the nasal cavity or pharynx along the midline facial tissues. A case of lethalmidline granuloma in the palate of a 63-year-old woman is reported. The patient had a low-grade fever anda large ulcer with hemorrhage in the palate. Clinically, a malignant tumor was initially suspected becauseof rapid progressive ulceration, but inflammatory disease was pathologically diagnosed on examination ofa tissue specimen stained with hematoxylin and eosin. The definite diagnosis was made by in situ hybridizationwith Epstein-Barr virus RNA (EBV encoded small RNA- 1: EBER 1)-specific oligonucleotideprobes, which showed positive signals in small lymphocytes. The patient's condition became critical becauseof frequent hemorrhage, and she soon died.
著者
西村 正雄 三浦 章宏 山際 源二郎 貞包 剛男 大橋 忠 中条 弘 上田 喜一
出版者
Japanese Society of Oral and Maxillofacial Surgeons
雑誌
口腔外科学会雑誌 (ISSN:04541693)
巻号頁・発行日
vol.6, no.2, pp.384-390, 1960-07-01 (Released:2011-07-25)
参考文献数
17

The amalgam restoration is regarded as the simplest and best method for the mass treatment of earlier carious lesions in pre-ventive dentistry but there are still some practical problems that remain unsolved.More efficient technics is to be divised and also the suppresson of mercury absorption by the operators is the important point in such severe exposure to mercury.This investigation was designed to improve the usual procedure by combining the use of an mechanical amalgamator and pre-prepared amalgam kept in a vacuum bottle containing dry ice.The air turbine (Air Dent Unit) was also applied in full through this experiment to reduce the cutting time and the pain or uncomfortable feeling of the children.1) The mechanical amalgamator which can mix mercury and alloy even at the weight ratio of 6 to 5 involed no need to sequeeze out mercury. Therefore, the time for restoration was markedly reduced to 71.5 sec.in comparison with 150 sec.in the routine manual procedure when the mixing time was set constant as 40 sec.in both methods.2) Urinary mercury excretion of three mixing operators following constantly mixing amalgam far 50 min.showed on the average the increase of 80 μ g Hg per day in the usual procedure, while using amalgamator, it only increased by 15 μ g Hg per day.3) After shaking with the amalgamator, the amalgam enough for three treatment was put in a small polyethylene tube and heat-sealed and instantly researved in a vacuum bottle containing dry ice.On the next day after 24 hours, each small tube was pulled out and kept at room temperature for halt an minute to wait softening and then the amalgam was applied.4) Physical properties of the reserved amalgam were tested with methods approved in J.I.S.(Japan Industrial Standards) and no significant differences were found.5) The time required for treating one caries tooth was 10 min.in the routine procedure, whlie combining the use of Air Dent Unit and pre-prepared amalgam reserved in dry ice bottle, it was exceedingly shortened to 1 min.and 49.5 sec.6) As a field experiment, 80 school children were successively treated by two dentists by this devised procedures in one day.The over-all time needed for the treatment of one children was 144.9 sec.on the average.7) Thus the mass amalgam restoration in preventive dentistry might be applied with high efficiency by our devised procedures.
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
被引用文献数
2

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.<BR>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
平田 康 岩本 康弘 宮本 亮三 吉増 秀實 天笠 光雄 岡田 憲彦
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.1, pp.27-30, 2004-01-20
被引用文献数
4 1

Glandular odontogenic cyst (GOC) is a rare jawbone cyst of odontogenic origin, first described by Gardner et al. in 1988. GOC is characterized by typical histopathological features, a gradual increase in size, and a high rate of local recurrence if not adequately treated. We report a case of GOC occurring in the anterior region of the mandible. The patient was a 62-year-old woman who presented with swelling of the anterior region of the mandible. Panoramic radiography indicated a multilocular radiolucent lesion in the anterior region of the mandible. Enucleation of the cyst was performed. Postoperative healing was satisfactory, and no recurrence has been noted on long-term observation. We reviewed 41 cases of GOC that had beenreported previously. Among these cases, 35 were located in the mandible and only 6 in the maxilla. The male: female ratio was 1.28 (23: 18), and the mean age was 47.8 years. Radiographically, among a total of 37 cases, 18 were unilocular and 19 were multilocular. The overall recurrence rate was 19.5%.
著者
岩渕 博史 岩渕 絵美 内山 公男 高森 康次 永井 哲夫 田中 陽一
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.12, pp.703-707, 2006-12-20
被引用文献数
2 1

Glandular odontogenic cyst (GOC) was first proposed by Gardner et al in 1988 as an infrequent developmental epithelial cyst occurring in jaw bones. We describe our experience with a case of GOC arising in the mandible and report the clinical course. The patient was 52-year-old woman with clearly bordered multilocular radiolucent lesions in bothsides of the mandibular premolar region. These cysts were extirpated, and the specimens were studied by routine pathological examination and immunohistochemical staining with cytokeratins. The diagnosis was established to be GOC. The cyst recurred 3.5 years after surgery, and reoperation was performed.
著者
岡本 喜之 川田 賢介 岩井 俊憲 小澤 幹夫 菊地 良直 石川 好美
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.1, pp.11-14, 2006-01-20
被引用文献数
5 2

A glandular odontogenic cyst (GOC) is a rare odontogenic cyst, classified as a new developmentalodontogenic cyst by the WHO in 1992. It frequently arises in the anterior region of the mandible. Histopathologically, GOC is lined by epithelium of varying thickness, which contains mucous cells and vacuolations. Some casesshow clinically invasive growth, leading to a high rate of recurrence despite surgical excision. Some studies haveestimated that the overall recurrence rate is 27%.<BR>We report a case of GOC arising in the right mandibular third molar region. The patient was a 34-year-old man.Surgical excision was performed. One year 4 months after the operation, the prognosis was good, with no signs of recurrence.
著者
笠原 慎太郎 瀬川 清 工藤 啓吾 泉沢 充 武田 泰典
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.47, no.11, pp.688-691, 2001-11-20
被引用文献数
6 1

Glandular odontogenic cyst is a rare jaw bone cyst of odontogenic origin, first described in 1988 by Gardner et al.<BR>Radiologically, a well-defined unilocular cyst lesion is seen. Histologic features include a thin layer of epithelium with surface cilia and glandular or pseudoglandular structures.<BR>A case of glandular odontogenic cyst of the maxilla is reported.
著者
山近 重生 中川 洋一 寺田 知加 川口 浩司 瀬戸 〓一 石橋 克禮
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.527-531, 2006-10-20
被引用文献数
2 2

Glandular odontogenic cyst (GOC), first described in 1988 by Gardner <I>et. al</I>, is a comparatively rare jawbone cyst of odontogenic origin, which shares some features with both botryroid odontogenic cysts and mucous-producing salivary gland tumors. Although GOC has a high rate of recurrence, cases of recurrence have not been reported in the Japanese literature.<BR>This paper describes a case of GOC arising in the mandible of a 58-year-old man. The cyst recurred 12 years after primary treatment. Diagnosis and treatment of the lesion are discussed.
著者
北山 若紫 山本 一彦 小松 祐子 青木 久美子 藤本 昌紀 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.54, no.3, pp.164-168, 2008-03-20
被引用文献数
2

We report a case of glandular odontogenic cyst (GOC) arising in the mandible. The patient was a 55-year-old woman who presented with a painful swelling of the right premolar region of the mandible.Roentgenographic examination revealed a multilocular radiolucent lesion from the right first molar across themidline to the left second premolar region. The clinical diagnosis was a mandibular cyst. Enucleation of the cystand extraction of the teeth were performed with the patient under general anesthesia. Histological examinationshowed a multicystic lesion partially lined by non-keratinized epithelium with focal plaque-like thickening. Thesurface epithelium included eosinophilic cuboidal and ciliated cells. Cyst-like spaces and glandular structureswere also observed within the epithelium. Epithelial islands were also seen in connective tissue of the cyst.Immunohistochemically, epithelial cells were strongly positive for cytokeratin (CK) 13 and 19, but almost negativefor CK18. The histological diagnosis was GOC. The postoperative course was satisfactory, and no recurrencehas been noted 4 years 6 months after the operation.
著者
布袋屋 智朗 林 英司 長山 勝 柳 久美子 林 良夫
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.43, no.11, pp.840-842, 1997-11-20
参考文献数
13
被引用文献数
9 2

Vascular leiomyoma is a benign tumor of smooth muscle that mainly occurs in the hands and legs. However, it rarely occurs in the oral cavity.<BR>A case of vascular leiomyoma of the buccal mucosa is reported. A 73-year-old woman visited our department because of a swelling in the buccal mucosa. CT examination revealed a smooth tumorous lesion in the left buccal mucosa. The clinical diagnosis was a benign tumor, and enucleation of the tumor was performed. The histopathological diagnosis was vascular leiomyoma.
著者
澤 裕一郎 熊澤 友子 滝本 明 馬杉 亮彦 川野 大 野村 明日香
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.408-411, 2004-06-20
被引用文献数
1

Paralysis of the mental nerve is one of the principal complications of surgery of the mandibular canal and mental foramen region. The position of mental foramen can be clearly depicted on CT scans. The mental foramen is bilaterally located at the mandibular premolar region and appears as a dimple on the bone surface. However, several reports have described an accessory mental foramen (AMF). We examined CT pictures taken from patients with implants for missing mandibular teeth to detect variations of the AMF. The results were follows: 1) AMFs were present in 28 patients (24.6 %). 2) Unilateral AMFs were found in 24 patients, and bilateral AMFs in 4 patients. 3) Among patients with unilateral AMFs, 21 had AMFs with one foramen, and 3 had AMFs with two foramens. Among patients with bilateral AMFs, 2 patients had one foramen on each side, and 2 had two foramens on one side. 4) The position of AMF relative to that of the mental foramen was as follows: 18 foramens were superior mesial, 8 were superior distal, 6 were inferior mesial, and 5 were inferior distal.<BR>These results suggest that one quarter of patients with missing mandibular teeth may have AMFs around the mental foramen.
著者
小村 健 和田 重人 小野 貢伸 嶋田 文之
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.42, no.6, pp.560-565, 1996-06-20
被引用文献数
2

In squamous cell carcinomas of the oral cavity, spinal accessory lymph node (SALN) metastasis develops infrequently, and the prognosis of the patients with SALN metastasis is extremely poor.<BR>In this paper, patients with SALN metastasis of squamous cell carcinomas of the oral cavity were studied retrospectively. The SALN metastasis was histopathologically confirmed in 9 (5.0%) of 179 patients who underwent radical or modified radical neck dissection. The primary sites of their tumors were the tongue in 6 patients, the lower gingiva in 2, and the buccal mucosa in 1. The risk of SALN metastasis was related to the tumor spread into the oropharynx and the differentiation of the tumor, but not related to the T stage. In the patients with SALN metastasis, the mean total number of involved nodes on the affected side of the neck was 9.4. All of these patients had metastases in multiple groups of neck lymph nodes, and the majority had metastases in the upper and middle jugular groups of nodes. The mean number of involved SALNs was 2.0, and the mean size of these nodes was 0.52 cm in diameter.<BR>The outcome of treatment in the patients with SALN metastasis was poor: 1 patient was alive with no evidence of disease, and 8 patients died of disease with an average duration of survival of 8.0 months after neck dissection.<BR>To improve the prognosis of patients with SALN metastasis, both postoperative irradiation to the neck and intensive adjuvant chemotherapy should be employed.
著者
小村 健 武宮 三三
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.7, pp.1749-1754, 1985
被引用文献数
1 1

A 56 year-old male patient with adenoid cystic carcinoma of the right sublingualgland origin was reported. In this case, extensive local resection of the tumor including the dissection of the parapharyngeal space along the lingual and hypoglossal nerves was carried out in combination with radical neck dissection. Surgical treatment was followed by 60 Gy of radiotherapy.<BR>He was free of disease during the follow-up period of 9 months.<BR>Adenoid cystic carcinoma arising in the sublingual gland accounted for 35 cases reported in the literature for the period of 1930-1984.
著者
小村 健 武宮 三三 牧野 修治郎 嶋田 文之
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.38, no.4, pp.604-614, 1992
被引用文献数
2

A retrospective review of 6 patients with adenoid cystic carcinoma (ACC) of the submandibular gland treated between 1978 and 1991 was presented. Two patients who underwent aggressive surgery were disease-free, local control failed in 2 patients, and pulmonary metastasis developed in 2 patients without locoregional disease.<BR>This study supports the following conclusions:<BR>1. The perimeters of ACC are always more extensive than they appear to be clinically, because ACC has a strong tendency to invade the perineural space and extend for long distance.<BR>2. In preoperative diagnosis, aspiration cytology is essential for accurate diagnosis. Diagnostic imagings such as sialography, X-ray CT and MRI are helpful in detecting the size and extent of the tumor. RI study is indispensable in detecting the perineural spread<BR>3. Surgery is the treatment of choice, and it should be as extensive as possible, with a wide margin of healthy tissue. Radiation therapy, although not curative, plays an important role in prolonging survival and pain relief.<BR>4. ACC is characterized by slow growth, frequent recurrence, and systemic spread even after long-term survival without disease, therefore adjuvant chemotherapy should be taken into consideration.