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41 巻, 10 号
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水谷 太尊, 山口 晃, 西村 恒一1995 年 41 巻 10 号 p. 845-857
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe evaluated changes in the articular cavity caused by temporomandibular joint (TMJ) arthrography. First, the synovial membrane surface anterior to the normal inferior articular cavity of the rabbit TMJ was observed by scanning electron microscopy (SEM). Next, the inferior articular cavity was perfused with physiological saline solution and iohexol (Omnipaque®300) as contrast medium by a puncture procedure established in this study, and changes in the synovial surface anterior to the inferior articular cavity were observed by SEM.
1. The normal synovial membrane was covered with spherical cells and had an uneven surface. The synovial membrane on the mandibular condyle side was flat, while that on the articular disc side showed wavy synovial folds. The cells lining the synovial membrane could be classified according to the developmental state of cytoplasmic processes into two types. These lining cells were not bound to eath other and were separated by intercellular spaces, which contained an irregularly arranged microfibriform substance.
2. Perfusion with physiological saline resulted in no changes in the structure of the synovial surface or the morphology of the lining cells.
3. After perfusion with the contrast medium, some lining cells were damaged, detached, and exfoliated, and necrotic tissue adhered to the synovial surface. After 3 days, a trend toword repair and a decrease in the attached tissue were observed. After 7 days, the membrane surface was recovered to normal.
These results suggest that TMJ arthrography causes detachment and exfoliation of a limited number of synovial cells due to invasion associated with puncture and the contrast medium, but recovery and healing are rapid. Therefore, this examination procedure is useful and does not cause intra-articular injuries when perfomed properly.抄録全体を表示PDF形式でダウンロード (24224K) -
第2報X線CT像による骨形成の評価越後 成志, 松井 桂子, 斎藤 哲夫, 伊藤 正健, 千葉 雅俊, 森川 秀広, 福田 雅幸, 手島 貞一, 幸地 省子, 飯野 光喜1995 年 41 巻 10 号 p. 858-862
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe attempted secondary closure of alveolar clefts without using a bone graft in 18 patients (19 alveolar clefts) with narrow alveolar clefts. The surgical procedure to make a recipient bed was the same as that used for bone grafting in our department. Bone formation at the alveolar clefts were evaluated by CT radiographs taken at least 1 year after operation.
Good bone bridge formation was found in about 50% of the cases. Good bone bridge formation was apparently associated with the use of Aviten® at the alveolar cleft region or injury of the bone surface of the alveolar cleft region with a chisel to promote osteoplastic activity.
In the future, we expect that bone morphogenetic protein (BMP) or new carriers such as some kind of collagen will be developed.
Moreover, CT radiographs were useful in evaluating bone formation at alveolar clefts.抄録全体を表示PDF形式でダウンロード (3249K) -
仲屋 正樹, 関口 隆, 篠原 久幸, 中舘 敬, 松田 博之, 本間 清史, 永井 格, 小浜 源郁1995 年 41 巻 10 号 p. 863-865
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe clinically studied 624 cases of oral mucosal lesions at our clinic from 1990 to 1992 to evaluate their clinical features and treatment methods.
1) The most common diagnosis was aphthous lesion and stomatitis (44.2%), followed by glossitis, lichen planus, malformation of the tongue, infectious disease, leukoplakia, and cheilitis or angular cheilitis.
2) The ratio of males to females was 1: 2.0. Oral mucosal lesions occurred predominantly in patients who were 40 to 69 years of age.
3) The most common location was the tongue (47.0%), followed by the buccal mucosa (15.5%), lip, gum, palate, and floor of the mouth.
4) Pain was the most frequent chief complaint.
5) The majority of cases were treated successfully by medication alone, except for 2 cases of lichen planus and 20 cases of leukoplakia who required surgical treatment.抄録全体を表示PDF形式でダウンロード (403K) -
松田 博之, 平塚 博義, 関口 隆, 本間 清史, 針谷 靖史, 小浜 源郁1995 年 41 巻 10 号 p. 866-868
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe report an extremely rare case of mandibular parosteal osteosarcoma along with a review of the literature. A 48-year-old woman was referred to our clinic for a painless tumor of the left side of the lower gum. The tumor was excised under local anesthesia and suspected to be a giant cell epulis on histological examination. However, the tumor recurred after three years. A biopsy specimen of the tumor was found to be an osteosarcoma. Partial resection of the mandible was carried out, and no tumor cell was noted in the mandible. The tumor was finally diagnosed to be a parosteal osteosarcoma. Presently, the patient is well and has had no recurence or evidence of matastasis.抄録全体を表示PDF形式でダウンロード (5732K) -
宮坂 孝弘, 鈴木 宗一, 藤城 建樹, 田中 正司, 佐藤 田鶴子, 野中 博子1995 年 41 巻 10 号 p. 869-871
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe report a case of sialadenoma papilliferum of the oral floor. A 68-years-old woman visited our hospital in December 1993 complaining of a mass of the right side of the oral floor. A ball-like protrusion, measuring 6 × 6 × 5 mm, with sharp margins was found at the right side of the oral floor. The lesion was suspected to be a papilloma, and tumorectomy was performed under local anesthesia. Pathohistologic examination revealed a papillary sialadenoma, first reported by Abrams. The patient has done well since the operation. Tumors of the oral floor have not previously been reported in the literature.抄録全体を表示PDF形式でダウンロード (2922K) -
小泉 英彦, 相川 友直, 岡田 元, 石井 庄一郎, 薬師寺 登, 松矢 篤三1995 年 41 巻 10 号 p. 872-874
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーAcanthosis nigricans, which generally appears on the skin and only uncommonly occurs on the oral mucosa, is characterized by papillary proliferation, hyperkeratosis, and pigmentation. A rare case of acanthosis nigricans of the hard palate is presented.
A 64-year-old woman presented with a slight rough feeling of the hard palate. During the past 3 months, she noticed multiple papillary lesions in the mouth and dark pigmentation extending from the neck to the back. Oral examination indicated multiple, amall, nonpigmented, papillomatous nodules on the hard palate. Histological examination revealed papillomatosis and acanthosis of the epithelium. We made a diagnosis of acanthosis nigricans and immediately searched for malignant visceral tumors. A gastric carcinoma was detected by gastroscopy, and it was associated with pericarditis carcinomatosa. Three months later she died of pulmonary embolism.
Acanthosis nigricans associated with oral lesions may be malignamt; the diagnosis of this condition is therefore important for the early detection and treatment of underlying cancer.抄録全体を表示PDF形式でダウンロード (3140K) -
小網 達矢, 西嶋 寛, 西嶋 克巳, 鶴田 敬司1995 年 41 巻 10 号 p. 875-877
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーLipoma, a benign neoplasm of adipose tissue, is a common soft-tissue tumor that can occur almost anywhere on the body. Despite the abundance of adipose connective tissue in bone marrow, however, intraosseous lipoma is one of the rarest benign tumors of bone. Few lipomas of the jaw bones have been reported in the literature. We describe a 59-year-old man with swelling of the mandibular gingiva. Postoperatively, histopathological examination showed that the specimen of tissue derived from the mandible consisted of mature adipose tissue; a diagnosis of intraosseous lipoma was therefore made. As of 2 years after operation, there has been no evidence of recurrence.抄録全体を表示PDF形式でダウンロード (2905K) -
原田 博史, 栗丸 美由紀, 橋村 静治, 中尾 元紀, 亀山 忠光, 森松 稔1995 年 41 巻 10 号 p. 878-880
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーThirteen cases of epidermoid cysts and dermoid cysts were clinicopathologically examined. Among them, 9 cases were diagnosed histopathologically as epidermoid cysts and 4 cases as dermoid cysts including one teratoid cyst type. These cysts appeared more freguently in females rather than in males (2: 3), and the age distribution ranged from 7 to 75 years of age (average 35.7 years). The fact that most cases arose at the midline or sites of anatomical union, except for one case that appeared in a patient with tongue cancer after upper neck dissection, supported their congenital pathogenesis and also it suggested the possibility of aquired pathogenesis. There has been no recurrence in this series of patie.抄録全体を表示PDF形式でダウンロード (441K) -
蜂矢 裕司, 成田 幸憲, 白水 敬昌, 堀内 隆作, 渡辺 雅夫, 宮地 斉1995 年 41 巻 10 号 p. 881-883
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーA 37-year-old man presented with a 3-day history of toothache and cheek swelling, which progressed to dysphagia, throat pain, dyspnea, and neck swelling. X-ray film demonstrated an apical cyst of the jaw. Although a deep-neck space infection was suspected from the symptoms, the location of the abscess was unclear. The symptoms rapidly worsened and airway obstruction developed. He was saved by an emergency tracheotomy. CT scan showed a widened vascular visceral space with gas bubbles and an abscess, in addition to mediastinitis occurring secondary to a descending odontogenic infection. He was cured immediately by surgical drainage in combination with antibiotic treatment. Drainage was performed through neck incisions. The superior and anterior mediastinum were also drained.抄録全体を表示PDF形式でダウンロード (3189K) -
江端 正祐, 鄭 漢忠, 北田 秀昭, 山際 靖二, 野谷 健一, 福田 博1995 年 41 巻 10 号 p. 884-886
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe clinically studied the incidence of postoperative infections and the factors responsible for such infections, including blood loss, duration of operation, cleanliness of operation, and systemic disease. The subjects comprised 422 inpatients who underwent operations under general anesthesia at the 1st Department of Oral Surgery, Hokkaido University during the 5 years from 1988 to 1992. The results were as follows: 1) The incidence of the postoperative infection was 12.1%. 2) With regard to the cleanliness of operation, the incidences of semi-aseptic operations, contaminated operations, and aseptic operations were 15.7%, 5.6%, and 0 %, respectively. 3) Operations with a long duration and a high volume of bleeding tended to have a higher incidence of postoperative infection. 4) Operations for malignant tumors tended to have a higher incidence of postoperative infection. 5) Patients with systemic disease tended to have a higher incidence of postoperative infections. 6) The infected cases had longer durations of antibiotic use and hospitalization.抄録全体を表示PDF形式でダウンロード (430K) -
臼井 弘幸, 浅田 洸一, 長島 弘征, 酒井 正人, 高尾 亜由子, 石橋 克禮1995 年 41 巻 10 号 p. 887-889
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーSuppurative arthritis of the temporomandibular joint (TMJ) is a rare condition. A case of suppurative arthritis of the TMJ suspected to have been caused by direct extension of a dental infection in a 64-year-old man is reported. Radiographic findings, MR imaging of the TMJ, and early aspiration were useful for diagnosis. Systemic and local administration of antibiotics, drainage and irrigation, and mouth opening exercises led to an excellent result.抄録全体を表示PDF形式でダウンロード (5480K) -
飯田 征二, 古郷 幹彦, 大倉 正也, 相川 友直, 志方 恵, 石井 庄一郎, 田中 晋, 竹村 日登美, 久保 茂正, 松矢 篤三1995 年 41 巻 10 号 p. 890-892
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーWe clinically observed patients with sialolithiasis of the submandibular gland who visited our department during the past 10 years (January 1984 to December 1993). The following results were obtained.
One hundred forty-six cases of sialolithiasis of the submandibular gland were diagnosed. The highest proportion of patients were in their 3rd decade of life, and the ratio of men to women was 1 to 1.4. The most common site of occurrence was within the submandibular duct (84.2%), and larger sialoliths tended to occur in the gland and the transitional portion. The main clinical symptoms of submandibular sialolithiasis were swelling and/or tenderness of the gland, and these symptoms tended to occur on the gland side. Infection of the oral cavity tended to occur on the orifice side.抄録全体を表示PDF形式でダウンロード (370K) -
森本 佳成, 湯村 典子, 河野 孝行, 杉村 正仁, 中島 充, 吉岡 章1995 年 41 巻 10 号 p. 893-895
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーThis report describes the hemostatic management of a 7-year-old boy with conge-nial hypoprothrombinemia who underwent intraoral surgery. One hour before operation, the serum prothrombin level was increased from 1.7% to 130% by infusion of prothrombin com-plex concentrate (PCC; prothrombin dose: 60 units/kg). The patient underwent extractionof E and B, and marsupialization of a 7 dentigerous cyst, and prompt hemostasiswas obtained by a combination of gauze-tamponade and hemostatic splinting.
Serum prothrombin was maintained at a level of more than 40% for one week by infusionof PCC (prothrombin dose: 30 units/kg) on the 2nd, 4 th and 7 th postoperative days. Postoperative bleeding did not occur at the surgical field. We conclude that adequatehemostasis can be obtained by PCC (prothrombin dose: 60 units/kg) infusion and properlocal hemostatic management, in patients with congenital hypoprothrombinemia who un-dergo intraoral surgery.抄録全体を表示PDF形式でダウンロード (2888K) -
白井 泰彦, 別所 和久, 西田 光男, 村上 賢一郎, 飯塚 忠彦1995 年 41 巻 10 号 p. 896-898
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーConventionally, autologous skin or mucous membranes from the hard palate have been used as grafts for the alveolar area. This technique, however, has the serious disadvan-tage of exposing the healthy area to secondary damage during the process of graft donation.To resolve this problem, several types of biomaterials have been developed. These are onlytemporary materials that have several disadvantages in terms of antigenicity, bio-compatibility, and handling. We used TERUDERMIS® for vestibular extension in 30 patientswho were treated with dental implants. It is composed of a collagen sponge with a siliconelayer, which is sloughed off during the healing process. This material was more effectivethan auto logous mucous membrame grafts in promoting hemostasis, relieving pain, pro-moting rapid epithelization, and inducing connective tissue. No side effects were noted. The-results suggest that the material is useful for vestibular extension of the mandible.抄録全体を表示PDF形式でダウンロード (2733K) -
古森 孝英, 横山 恵以子, 横山 武志, 森 良之, 柳谷 謙一, 高戸 毅1995 年 41 巻 10 号 p. 899-901
発行日: 1995/10/20
公開日: 2011/07/25
ジャーナル フリーThe hard laser is now widely used in the oral and maxillofacial region because itshemostatic ability and imploved visualization of the operative field facilitate a presice op-eration. Another important advantage of the hard laser is that some operations can be donewithout anesthesia. In this paper, six cases of epulis excised by the hard laser without anes-thesiaare presented.
A CO2 laser (one type of hard laser) was used with a continuous wave, power setting of 2 to 4 watts. All lesions could be excised completely, and no patients felt pain during laserirradiation. The operation was successful without using surgical packs, and there was nopostoperative discomfort. There has been no evidence of recurrence after operation.抄録全体を表示PDF形式でダウンロード (2787K)
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