巻号一覧
29 巻 (1989)
- 4 号 p. 425-
- 3 号 p. 329-
- 2 号 p. 239-
- 1Supplement 号 p. 131-
- 1 号 p. 1-
29 巻, 2 号
選択された号の論文の11件中1～11を表示しています
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池島 厚, 若田 政嗣, 尾澤 光久, 山本 浩嗣1989 年 29 巻 2 号 p. 239-244
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーA study was made on clinical findings of 4 cases which were pathohistologically diagnosed as calcifying odontogenic cysts. The age of the patients when they visited our hospital ranged from 10 to 58, averaging 29.5. The symptom was found mostly in females, and at the same rate in the maxilla and mandible.
In radiographic findings, all cases were unilocular and showed clear boundaries. Bone expansion was also recongnized. On the other hand, no border sclerosis was seen in any case. There were cases accompanied by odontoma and embedded teeth, producing the radiopaque appearance of a calcareous deposit, and appearing cyst-like. In the adjacent area, root absorption was seen in all cases, and tooth separation was observed in some. In pathohistological findings, ghost cells were observed in all cases. Calcareous deposits in small and medium quantities were recognized.
A comparative study on radiographic and pathohistological findings of the calcareous deposits revealed that their appearance on radiographs was proportional to the quantity of calcareous deposits.抄録全体を表示PDF形式でダウンロード (3790K) -
岩井 一男, 橋本 光二, 馬瀬 直通, 舘野 誠, 篠田 宏司, 西連寺 永康, 丸山 隆司1989 年 29 巻 2 号 p. 245-251
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーThe population doses (Genetically significant doses (GSD), per Caput mean bone marrow dose (CMD), Leukemia significant dose (LSD), and Malignant significant dose (MSD)) and stochastic risks from dental radiographic examinations were estimated on the basis of a nationwide survey in Japan 1987. The organ or tissue doses related to the stochastic effects with intra-oral and panoramic examinations were determined using ionization chambers and thermoluminescent dosimeters placed in the RANDO-Woman-phantom. The phantom was exposed with dental x-rays under the condition of 60kV and 10mA and panoramic x-rays of 85kV, 10mA. The risk factors of the genetic effects, the leukemia and the fatal malignant diseases were estimated from the results of a nationwide survey. The effective dose related to MSD and the effective dose equivalent recommended by the International Commission on Radiological Protection (ICRP) were calculated using weighting factors and the organ or tissue doses.
The annual population doses per person were calculated as 98nGy for GSD, 8.5μGy for CMD, 7.5μGy for LSD and 7.1μGy for MSD from intra-oral radiography and 6nGy for GSD, 2.3μGy for CMD, 2.1μGy for LSD and 1.3μGy for MSD from panoramic radiography, respectively. The collective ffective dose equivalents were calculated as 2370man·Sv for intra-oral radiography and 470man·Sv for panoramic radiography. The resultant annual risks of population from intra-oral and panoramic radiography were estimated to be 0.17 for genetic effects, 2.3 for leukemia and 16.7 for fatal malignant diseases.抄録全体を表示PDF形式でダウンロード (803K) -
清水谷 公成, 林 靖久, 坂本 健吾, 川植 康史, 四井 資隆, 木原 卓司, 稲垣 眞一, 古跡 養之眞, 久保 和子, 古川 惣平, ...1989 年 29 巻 2 号 p. 252-258
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーSixty nine patients with squamous cell carcinoma of the lower gingiva were treated by radiotherapy combined with bleomycin (BLM) or peplomycin (PEP).
The complete response (CR) rates after radiation (30Gy/3wks) combined with BLM (90mg/3wks) or PEP (45mg/3wks) was 59% (41/69). Response rate was assessed at three or four weeks after the completion of irradiation. The control rates of T1, T2 cases was 70% (28/40) and that of T3, T4 cases was 45% (13/29).
Of these with CR after Radiotherapy plus BLM or PEP, 25 patients (T1, T2: 16, T3, T4: 9) were followed without surgery. 16 patients (Ti, T2: 11/16, T3, T4: 5/9) achieved local control at 2 years or more.
However, of 9 patients (T1, T2: 5, T3, T4: 4) who had local recurrence, 3 were salvaged.
Ultimate local control rates of patients with CR after radiotherapy plus BLM or PEP was 88% (14/16) in T1, T2 category.
Five year cause specific survival rates was; stage I: 76%, stage II: 74%, stage III: 43%. Overall survival was 64%.
Two year local control rates was; T1: 100%, T2: 72%, T3: 63%, T4: 46%. Overall local control was 70%.抄録全体を表示PDF形式でダウンロード (765K) -
森田 康彦, 河野 一典, 佐藤 強志, 野井倉 武憲1989 年 29 巻 2 号 p. 259-267
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーSingle photon emission computed tomography (SPELT) was applied to bone scintigraphy in the head and neck region.
Two dimensional-Wiener-filter was used to reduce noise in measured projection data. Ramachandran filter was used as a convolution function at backprojection. This method significantly improved the reconstructed images.
On clinical evaluation, SPECT was useful in the maxillary region, in preventing overlap of hot-spots on scintigrams. And assembly of transaxial, sagittal and coronal images could reconstruct three dimensional localization of hot-spots.
Free angle tomographic technique was examined in reconstructing slice-images along mandibular bone. Vertical and horizontal extension of hot-area was distinctly recognized by sagittal and transaxial images, respectively.抄録全体を表示PDF形式でダウンロード (7752K) -
―広島大学歯学部附属病院におけるデンタルおよびパノラマ撮影について―古木 良彦, 藤田 實, 池尻 美知子, 山根 由美子, 砂屋敷 忠, 和田 卓郎1989 年 29 巻 2 号 p. 268-280
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーA survey on an actual state of dental radiographic exposures at the Hiroshima University Dental Hospital was carried out in a period from April 1, 1987 to March 31, 1988, and following results were obtained.
1. Intraoral Radiography:
1) Total numbers of cases and films were 11771 and 30075, respectively. Film per case was 2.6 in average.
2) In female, they were 1.4 times of those in male.
3) In July and March, the numbers of both cases and films were more than in other months.
4) The numbers of cases were found to be more in the first, fifth and sixth decades of age, but the numbers of films and its average were more in the first and second decades.
5) Upper incisors, molars and lower molars were found to be examined most frequently.
2. Rotational Panoramic Radiography:
1) Total numbers of cases were 3108.
2) There were no significant differences between the sex in the numbers of cases.
3) In July, August and March, the numbers of cases were more than in other months.
4) The frequency of this examination was significantly higher in the second decade of age.抄録全体を表示PDF形式でダウンロード (1529K) -
高瀬 裕志, 江口 徹, 和田 真一, 北村 信安, 前多 一雄1989 年 29 巻 2 号 p. 281-288
発行日: 1989年
公開日: 2011/09/05
ジャーナル フリーSialography is a useful radiographic procedure for the detection and monitoring of salivary gland diseases associated with functional disturbances. The relations between sialographical findings, clinical symptoms and final diagnosis were retrospectively studied in 35 patients who had clinically been diagnosed as having xerostomia.
Sialography was performed at the Nippon Dental University, the School of Dentistry at Niigata, Department of Oral Radiology, from April 1980 to November 1988. In 27 of the 35 patients, both parotid glands were examined, and in the remaining patients only one parotid gland was examined. The contrast medium used was Urografin 76%. The ages of the patients (10 men and 25 women) ranged from 31 to 80 years, with a mean age of 57.6 years. Most of the patients did not have any subjective symptoms except the chief complaint of dry mouth or salivation. The final diagnoses of these 35 patients were Sjogren's syndrome in 9, suspected Sjogren's syndrome in 6, inflammation in 8, drug-induced xerostomia in 6, neurogenic xerostomia in 2, hemodialysis-induced xerostomia in 2, radiation-induced xerostomia in 1, and postoperative change of the salivary gland in 1.
The sialographical findings were classified into four groups: inflammation, Sjogren's syndrome, atrophic change and normal. Increasing dryness in the mouth during the night was a definite sign that indicated the presence of inflammatory change of the salivary gland. If a patient has the clinical symptoms associated with Sjogren's syndrome and an atrophic change is found on sialogram, he may be diagnosed as having Sjogren's syndrome. In some cases, the Sjogren's syndrome was first detected by sialography. So the method was considered to be useful in determining the presence or absence of the syndrome. It is necessary to check on the effects of medication, hemodialysis therapy, radiotherapy, or operation of the salivary gland.抄録全体を表示PDF形式でダウンロード (3205K) -
岩下 洋一朗, 森田 康彦, 野井倉 武憲1989 年 29 巻 2 号 p. 289-294
発行日: 1989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 (4464K) -
奉 光玉, 柴田 聡彦, 古本 啓一, 中島 薫, 西田 紘一, 園山 昇1989 年 29 巻 2 号 p. 295-298
発行日: 1989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 (4897K) -
橋本 光二, 本田 和也, 川島 祥史, 篠田 宏司, 西連寺 永康1989 年 29 巻 2 号 p. 299-301
発行日: 1989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 (5180K) -
1989 年 29 巻 2 号 p. 302-303
発行日: 1989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 (285K) -
1989 年 29 巻 2 号 p. 304-325
発行日: 1989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 (3198K)
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