歯科放射線
Online ISSN : 2185-6311
Print ISSN : 0389-9705
ISSN-L : 0389-9705
34 巻, 2 号
選択された号の論文の9件中1~9を表示しています
  • 細木 秀彦, 久保 典子, 前田 直樹, 高木 康里, 岩崎 裕一, 上村 修三郎, 鈴木 温, 細木 眞紀, 上田 龍太郎, 竹内 久裕, ...
    1994 年 34 巻 2 号 p. 81-90
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
    The morphological changes in the condylar head with the passage of time are not well known. There are few reports of successfully treating TMD by conservative therapy that include imaging studies as the symptoms improve.
    Morphological changes in the condylar head were studied on selected temporomandibular joint (TMJ) lateral tomography before, during or after treatment.
    As a result, among 53 patients (106 TMJs), 7 condylar heads (6.6%) which were free of significant abnormal radiographic findings on the first examination showed structural changes on the follow-up examination. Findings included: irregular formation of the articular surface in 4, shortening of the condylar head in 4, osteophyte formation in 3, roundness of the articular surface in 2, flattening in 2 and double contour formation of the posterior aspect in 1.
    However, substantial abnormalities in 36 condylar heads (34.0%) were detected on the first examination. Remarkable structural changes occurred between the first examination and the follow-up examination. These included: irregular formation of the articular surface of increase of the irregularity in 21, flattening of the condylar head in 17, shortening of the condylar head in 17, osteophyte formation in 12, roundness of the articular surface in 10, concavity formation in the posterior aspect in 4, double contour formation only in 2 and flattening of the articular tubercle or its posterior slope in 8.
    These results suggested that morphological changes in the condylar head with the passage of time varied. However, approximately one fifth of condylar heads in patients with TMD showed a tendency toward shortening accompanied by flattening or roundness.
  • ―皮質骨の膨隆を伴う病変についての基礎的検討―
    江島 堅一郎
    1994 年 34 巻 2 号 p. 91-102
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
    This study used ultrasound for qualitative and quantitative analysis of the internal condition of lesions in the jaw bones with expansion of the cortical bone. In the fundamental study, the influence of the width of the buccal cortical bone on the ultrasound image was first measured and observed using the A- and B-modes. A phantom was used which imitated lesion in the jaw bone, using the mandible.
    When changing the width of the buccal cortical bone, we observed changes in the B-mode image of the lesion and measured attenuation by the A-mode curve. The influence of the internal complex on the ultrasound image A-mode and B-mode was checked using water, castor oil and meat for the internal complex in the phantom. The method was also clinically applied for cases of jaw cyst and tumorous lesion. The results established the effectiveness of this method for application to diagnosis of lesions in the jaw bone with expansion of the cortical bone.
  • 野井倉 武憲, 奥 竜太郎, 岩下 洋一朗, 濱本 定俊, 高塚 富生, 上山 達典
    1994 年 34 巻 2 号 p. 103-112
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
    Chronic renal failure is known to cause bone changes not only in skeletal bone but also in the maxilla and mandible.
    This study evaluated the correlation between mandible bone changes on Al.-equivalent images and serum intact PTH (I-PTH), highly sensitive PTH (Hs-PTH) and bone gla protein (BGP), Ca, P, ALP, ΣGS/D, MCI of finger bone, and hemodialysis duration.
    According to the degree of bone changes (Z score) and level of I-PTH, cases of chronic renal failure were newly divided into 4 groups which showed relatively high relationship. Mandible bone changes were evaluated as 18.7% in the Low group, 27.5% in the Low-1 group, 48.7% in the Normal group and 5% in the High-1 group.
    There was no relation between changes in the mandible and those in the finger bone.
    Significant correlation was found between mandible bone changes of 4 groups and I-PTH, Hs-PTH and BGP, and there was slight correlation between Ca, P and ALP.
    Relationship was found between bone changes of finger and hemodialysis duration period.
  • 荒木 正夫, 澤田 久仁彦, 山田 久弥, 橋本 光二, 篠田 宏司, 小宮山 一雄
    1994 年 34 巻 2 号 p. 113-121
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
    We present both cases of osteosarcoma and fibrosarcoma occurred in the mandible. Cases 1 is osteosarcoma (osteoblastic type) occurred in 29-year-old man. Rotational panoramic radiogram showed an irregular radiolucency between the ramus and distal part of the left lower first premolar. At the first visit periosteal reaction which called sun-ray appearance was observed in the buccal cortical plates on occlusal view. After two months passed, this appearance changed to the other pattern which called Codman's triangle.
    Case 2 is fibrosarcoma occurred in 17-year-old girl. This lesion demonstrated irregular radiolucency between the right second premolar and third molar with invasion to inferior border of the mandible and also bone expansion in the bucco-lingual site were observed radiographically. The dental radiograms taken eight months before showed rarefaction of the periapical region of the right second molar whose periodontalspace was widened symmetrically.
    Sarcoma in the malignant tumor generally shows the rapid progress but some cases reveal slow growing. We think it is difficult to make the differential diagnosis between sarcoma and other tumors only by the osteolytic appearance on the radiogram.
  • 神部 芳則, 鎌田 仁, 河原 絵美子, 生田 明敏, 生田 裕之, 鹿島 勇
    1994 年 34 巻 2 号 p. 122-130
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
    In order to evaluate the use of selective carotid angiographies in head and neck region, we analyzed 18 cases which were examined by this method in our department from February 1992 to May 1993. Of 18 cases, 9 cases were malignant tumors, 4 cases were benign tumors, 4 cases were chronic mandibular osteomyelitis, and 1 case was an aneurysmal bone cyst.
    1) In the cases of malignant tumors; we could determine a tumor extension, main feeding arteries and vascularity of the tumor based on the pathological angiographic findings of neovascularity, tumor stain and arterial encasement.
    2) In the cases of benign tumors and vascular disease; angiographies were useful to determine the main feeding arteries and the distribution of tumor blood vessels in hemangioma, and it was also useful as a preoperative examination to select the feeding arteries which were needed for microsurgery in the patients with a recurrent ameloblastoma.
    3) In the cases of chronic mandibular osteomyelitis; the distribution and the blood supply of the inferior alveolar artery was clearly demonstrated.
    These results suggest that selective carotid angiography is a useful technique to characterize vascular distribution and blood supply of the lesion, and may provide profitable informations to select a more suitable treatment.
  • 西 とも子, 大西 隆, 堀川 孝明, 土井 統雄, 山地 忠司, 金子 昌幸
    1994 年 34 巻 2 号 p. 131-133
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
  • 細木 秀彦, 下村 学, 久保 典子, 前田 直樹, 高木 康里, 岩崎 裕一, 上村 修三郎, 久保 吉廣, 棚上 彰仁
    1994 年 34 巻 2 号 p. 134-136
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
  • 1994 年 34 巻 2 号 p. 137-159
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
  • 1994 年 34 巻 2 号 p. 160-168
    発行日: 1994/06/30
    公開日: 2011/09/05
    ジャーナル フリー
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