巻号一覧
26 巻, 1 号
選択された号の論文の13件中1～13を表示しています
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守屋 市朗, 小松 久高, 佐藤 眞, 早瀬 康博, 茶谷 勝也, 岸 幹二, 佐々木 朗, 松村 智弘1986 年 26 巻 1 号 p. 1-6
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリー2000 oral panoramic radiographs were reviewed to examine variations in size and shape of the styloid process. In 35.4% of total population, the tip of the ossification was located at the upper part of the ramus. This type was observed most common to the children from 9 years old and under. In 57.0% the tip of the ossification was located at the lower part of the ramus. This type was observed most common to all ages from 20 years old and over. In 24 patients (0.8%) elongated styloid process was extended over the area of the mandibular angle. The average patient age of this elongated group was 47.5 years old in male and 33.3 years old in female and the most youngest was 17 years old female. No apparent relationship could be established between the extent of ossification and increasing age in patients from 20 years old and over. Ordinary stick shape made up the largest number in all age groups. In other abnormal variations in shape dotted type was frequently occurred in patient 9 years old and under and decreased in number in the age groups 10 years of age and over. Nodular type appeared in patients 10 years of age and over and increased in number with advancing age.抄録全体を表示PDF形式でダウンロード (2106K) -
―コントラスト値による分析―池島 厚, 松崎 伸一, 尾澤 光久, 山本 浩嗣, 鈴木 勇1986 年 26 巻 1 号 p. 7-15
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーIt has been said that most of the radiolucent image with clear boundaries at the root apex of non-vital teeth are radicular cyst or radicular granuloma. Various examinations are conducted for the radiographic distinction on these two diseases, and once the radiography with opaque medium through the root canal of non-vital teeth has been considered especially useful. However, these two are not classified yet and it is considered impossible to distinguish them today.
Pathologically, the radicular cyst is the cyst formed in the radicular granuloma and the cyst cavity chiefly contains the effusion from serous fluid. Because they contain the different contents, it may be possible to distinguish these diseases radiographically.
Pathologically recognized 32 samples of radicular cyst and 32 of radicular granuloma are selected from the patients at the attached hospital of Nihon University, School of Dentistry at Matsudo. The density of inner part and boundary part of root apex radiolucent image was measured by Sakura PDM-5. Their density values were converted into contrast values and they were compared and evaluated between radicular granuloma group and radicular cyst group.
As a result, the radicular cyst were seen 100% in the range of subjective contrast values, 0.68 to 0.77, and 56% in 0.77 to 0.80. Radicular granuloma appeared 52% in the range of 0.80 to 0.94 and 100% in 0.94 to 0.95.抄録全体を表示PDF形式でダウンロード (845K) -
佐藤 眞, 小松 久高, 秋田 和俊, 茶谷 勝也, 早瀬 康博, 岸 幹二1986 年 26 巻 1 号 p. 16-22
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーThe present study is based on clinical and roentgenological observations of 12 cases of simple bone cyst that were encountered in past 3 years at Okayama University Dental School affiliated Hospital. The occurrence rate of simple bone cyst was 0.21% by roentgenographical evaluation of 5700 patients. The youngest patient was 11 years old and average age of cases was 23.9 years old. In one instanse cementomas were associated with cyst and the patient was relatively advanced age of 63 years. Cysts were present in the lower part of alveolar area of the mandible. In 8 cases the border of the lesions was weak and the nature of the inside radiolucency showed uniform radiopacity. In 4 cases small round more radiolucent area or soap bubble appearance were visible inside and showed scalloped resorption of both buccal and lingual sides of cortex at the same time. In case or cortical bone expansion, expansion was mild and the transition from the normal to the expanded site was gradual and smooth. The periodontal space and the lamina dura of adjacent dental roots were remained without any resorption but became thin. In a case with cementoma hypercementosis attached to a root apex projected into the radiolucent cavity. Of the 9 cases involving the mandibular canal 5 cases showed only a slight dislocation of the canal.抄録全体を表示PDF形式でダウンロード (3943K) -
小寺 吉衛, 谷本 啓二, 砂屋敷 忠, 池原 菜穂子, 山根 由美子, 富田 真一, 小川 正晃, 藤田 實, 和田 卓郎1986 年 26 巻 1 号 p. 23-30
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーTwenty-one screen-film systems were examined in order to determine the optimal system for cephalography. Relative speeds and physical image quality factors such as contrast and sharpness were evaluated. Visual image quality factors were also determined at 15 cephalometric landmarks on phantom images by five orthodontists.
It was proved that Kodak Lanex Regular single screens with Kodak OM single emulsion films have a higher image quality than conventional calcium tungstate double screen systems, without increasing the patient exposure.
A clinical test which was performed during a six-month period after these examinations supported the above results, and we decided to use Lanex Regular single screen/OM film systems for routine cephalography.抄録全体を表示PDF形式でダウンロード (956K) -
金子 昌幸, 小林 光道, 菊池 文利1986 年 26 巻 1 号 p. 31-41
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーA case of double cancer observed in the parathyroid gland and thyroid gland is presented which caused hyperparathyroidism and hypothyroidism.
The patient was a 66-year-old woman admitted to the Department of Dental Radiology, Higashi Nippon Gakuen University Dental Hospital, with the chief complaint of frequently occurred pathological bone fractures. Noteworthy events were not seen either in the family history or in the patient's past history. Physical and laboratory examinations revealed that the symptoms were attributed to hyperparathyroidism.
The panoramic radiograms obtained to detect the osseous changes in the maxillofacial regions showed a cotton-wool appearance in the maxilla and a lace-like appearance in the mandible. The conventional radiograms taken on the first admission to examine the whole body skeleton demonstrated a remarkable cotton-wool appearance in the skull, polycystic lesions in the humeri and femurs, and many other osseous changes in the whole body skeleton.
The spot scan bone scintigrams obtained with 99mTc-MDP showed unusual accumulations in the skull, maxilla, humeri, costae, scapulae, femurs, pelves, thoracic and lumber vertebrae, corresponding to the radiographic findings. The whole body scan bone images displayed many other abnormal accumulations in the whole body skeleton.
The thyroid scintigram obtained with Na123I revealed an extremely decreased accumulation in the thyroid gland and a well defined ovoid shaped cystic lesion in the left thyroid lobe. The thyroid 123I uptake (24 hours) was 3.4%.
Histological examinations revealed a parathyroid cancer combined with a thyroid cancer.抄録全体を表示PDF形式でダウンロード (9997K) -
佐藤 強志, 河野 一典, 末永 重明, 藤村 三千代, 森田 康彦, 野井倉 武憲, 山下 佐英1986 年 26 巻 1 号 p. 42-47
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーRadiograms of three cases of jaw bone destruction caused by rapid and progressive invasion of carcinoma have been studied. These three cases were of lower gum carcinoma, tongue carcinoma and maxillary carcinoma. The results are as follows:
1) Carcinoma have invaded jaw bones rapidly and progressively within 1 to 2 months.
2) There were observed gross bone destruction in all three cases in paticular pathologic fracture of coronoid process in case 2 and floating teeth in case 3.
3) The radiologic patterns of invasion types were divided into permeated type in case 1 and moth-eaten type in case 2 and 3. The radiologic pattern of permeated type in case 1 changed to moth-eaten type in final stage.抄録全体を表示PDF形式でダウンロード (5630K) -
二宮 半三, 池田 直也, 脇阪 孝, 後藤 俊文, 藤木 芳成1986 年 26 巻 1 号 p. 48-52
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーBenign cementoblastoma originates from the cementum on the tooth root and relatively rare tumor of the odontogenic tumor. This tumor nearly always occurs in connection with permanent tooth. In fact, only two cases are reported involving the deciduous dentition.
This paper presents a case of benign camentoblastoma that occurred in the apical region of the deciduous dentition. The patient was a 4.5-years old boy with complaints of slight pain and swelling in the region of the central incisor to canine of the deciduous dentition on the right mandible. Radiographic examination revealed mottled, radial and stratified hard tissue formation at the apical region of these teeth. This lesion extended from C B to the dental follicles of 3 2 1. These permanent teeth showed only crown formation but not root formation. Therefore we considered this case occurred in connection with deciduous dentition.抄録全体を表示PDF形式でダウンロード (6226K) -
高野 英明1986 年 26 巻 1 号 p. 53-58
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (537K) -
佐藤 強志, 未永 重明, 藤村 三千代, 河野 一典, 森田 康彦, 野井倉 武憲, 山口 孝二郎, 山下 佐英1986 年 26 巻 1 号 p. 59-60
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (1920K) -
武田 泰典, 黒田 政文, 坂巻 公男1986 年 26 巻 1 号 p. 61
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (1169K) -
田畑 修, 神田 重信, 白土 雄司, 平河 孝徳1986 年 26 巻 1 号 p. 62-63
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (2426K) -
1986 年 26 巻 1 号 p. 64-76
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (2235K) -
1986 年 26 巻 1 号 p. 83-96
発行日: 1986年
公開日: 2011/09/05
ジャーナル フリーPDF形式でダウンロード (2204K)
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