巻号一覧
42 巻 (1992)
- 5 号 p. 610-
- 3 号 p. 258-
- 2 号 p. 164-
- 1 号 p. 2-
42 巻, 2 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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北村 中也, 澤 秀樹, 松平 文朗, 佐野 祥平, 関根 透1992 年 42 巻 2 号 p. 164-169
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーThe following survey was conducted for the purpose of determining the overall attitude of dental school graduates toward their practice. This involves an investigation of on site medical ethics. Eight hundred and forty eight randomly chosen graduates were asked to complete our questionnaire.
Thus the following results were obtained:
1. Over 90% of the graduates feel that both “Dependability” and “Kindness” are equally important concerns during patient care.
2. Over 50% of the graduates indicated that empathy is most important for patient satisfaction.
3. “One's own morality” indicated the highest percentage and “selfrespect of being professional” and “the law followed”. Personal morality is the largest factor determining professional behavior. Professionalism and legal regulations are also of significant influence.
4. Over 90 percent of those surveyed are dissatisfied with the current system.
5. A majority said that they engaged in some self-study of medical ethics.
6. Most graduates indicated that medical ethics should be included in the curriculum, however not as a separate course. It should be covered in various classes throughout a student's training.抄録全体を表示PDF形式でダウンロード (1111K) -
吉田 幸恵, 小川 由紀子, 畠中 能子, 河野 綾美, 新庄 文明1992 年 42 巻 2 号 p. 170-175
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーIndividual tooth brushing instruction was given once a year to male workers voluntarily selected in 5 factories in Osaka from 1981 to 1989.
To evaluate the effect of instruction, participants were divided into two groups. Group A was 265 males who were given the instruction twice or more. Group B was 198 males who were given the instruction only once. Changes in oral health conditions were compared in these groups.
Statistically significant differences were observed in rate of persons with the change of debris score and frequency of tooth brushing between the two groups. The average number of teeth lost per year was 0.042 in group A and 0.078 in group B. The mortality of teeth was significantly lower in group A than in group B. These results show how tooth brushig instruction to the factory workers can improve oral health and prevent tooth loss.抄録全体を表示PDF形式でダウンロード (1184K) -
瀬川 洋, 浜田 節男, 宮澤 忠蔵, 清水 秋雄1992 年 42 巻 2 号 p. 176-183
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーゴールデンハムスターを用いた高蔗糖食餌によるKeyesらの実験系は現在でもよく使用されている。しかし, それに用いるDiet#2000は蔗糖が56%含有されているので, 歯周疾患誘発性食餌として適しているかどうか検討する必要があると考えられる。そこで, 食餌の低蔗糖化と唾液腺の分泌導管部の結紮および摘除処置により, 歯周疾患を誘発させる実験モデルの基礎的検討と歯槽骨吸収の経日的観察を軟X線口内規格撮影装置にて行い, 以下の結論を得た。
1) 唾液腺の分泌導管部の結紮および摘除処置 (III, IV, V群) により, 低蔗糖食餌による歯周疾患の発症が可能となった。
2) 処置による実験動物の発育状況は, III, IV, V群は一時的に体重の減少傾向が認められたが, V群を除いて群間に有意差は認められなかった。
3) 処置による唾液流出量の影響は, 対照群のI, II群とIV群およびV群間, III群とV群IV群とV群間に有意差が認められ, 飲水量についてはV群が他の群の約2倍の飲水量であった。
4) 短期実験系においては, 両側耳下腺分泌導管部結紮および顎下腺, 舌下腺摘除処置のV群が, 長期にわたる実験系では, 両側耳下腺分泌導管部結紮および舌下腺摘除処置のIV群が適切と考えられた。抄録全体を表示PDF形式でダウンロード (2200K) -
森岡 昌美, 木戸 玲子, 永田 篤司, 日野出 大輔, 一宮 斉子, 佐藤 誠, 中村 亮1992 年 42 巻 2 号 p. 184-190
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーDirect cytotoxicity of black-pigmented Bacteroides was studied in the confluent monolayer of human gingival fibroblasts (HGF) in vitro. Only strains from Porphyromonas gingivalis caused morphological alteration (cell-rounding) and notable depression of viability of fibroblasts. This cytotoxicities were remarkably reduced by treating bacterial cells with acidic buffer (pH 3.5) at 37°C for 30 min. To determine the location of the cytotoxicity, bacterial surface components, i. e., outer membrane (OM), lipopolysaccharide (LPS) and outer membrane vesicles (OM-V) from P. gingivalis 381 were prepared and their cytotoxicity was assessed. The cytotoxicity of OM-V was found to be much stronger than that of the other two components, and this cytotoxic factor seemed to consist largely of protein and to be associated with the enzyme activity of OM-V. The effects of some protease inhibitors and L-cysteine on the cytotoxicity of OM-V suggest that the mechanism of cell-rounding is different from that of cell death.抄録全体を表示PDF形式でダウンロード (1769K) -
永久歯齲蝕罹患状態について岩坪 〓子, 鈴木 恵三, 今西 秀明1992 年 42 巻 2 号 p. 191-203
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーa comparative study was made in Karakoram (Goma village, 1974), northwest Nepal (Simikot village, 1983) and Yunnan province (Sinong village, 1989). Japanese data (1987) was used for comparison.
1) In Goma and Simikot, the number of cases of permanent tooth caries was extremely small. On the other hand, it was very great in Sinong and Japan.
2) The patterns of DFT can be divided into two groups: one group includes Sinong and Japan, the other Goma and Simikot.
3) The DFT rate according to the location of teeth. The patterns can be divided into two groups, Sinong and Japan, Goma and Simikot.
4) Caries surfaces: in Simikot, there was not a great difference between the number of cases of occlusal, proximal or distal and labiolingual surface caries. In Sinong, both upper and lower jaws had a great number of cases of occlusal surface caries, but the difference between the surfaces decreased according to age.
5) The transition of caries grade: in the three Tibetan areas, the ratio of C4 to all carious teeth was quite similar.
6) Missing teeth: in Goma, where the number of caries cases was extremely small, the number of missing teeth was the greatest after 35 years of age, probably because of severe attrition.
7) Caries ratio of three molar teeth:
Second and third molars: caries increase patterns were similar in the three Tibetan areas and in Japan.
First molar: in Sinong, caries increased rapidly after eruption, Goma and Japan followed Sinong and in Simikot, caries increased very slowly.抄録全体を表示PDF形式でダウンロード (1984K) -
安井 利一, 田中 入, 小野澤 裕彦, 田中 園治, 松本 勝, 杉山 卓司, 佐藤 豊, 遠藤 浩正, 中尾 俊一1992 年 42 巻 2 号 p. 204-210
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーHypersensitive dentin is an important problem that should be controlled in the clinical fields of preventive dentistry, prosthodontics, and fillings, and especially in patient care in periodontal surgery cases. According to hydrodynamic theory of Brännström, several therapeutic methods have been applied, such as glassionomer cement filling, fluoride application, and protein coagulation. However, such treatments do not sufficiently relieve a patient's various discomforts derived from hypersensitivity of dentin.
We carried out a clinical study on the effect of jelly containing zinc sulfate and aluminum chloride for these discomforts in comparison with that of a control jelly containing NaF.
The reaction towards cold water was improved to 81.8 % for persons and 86.4% for individual teeth (P<0.05). The effects were also observed in the reactions towards cold air and scratching, without any side effects.抄録全体を表示PDF形式でダウンロード (1482K) -
好川 正1992 年 42 巻 2 号 p. 211-218
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーThe aim of this study was to evaluate the effect of the laser irradiation and the presence of fluoride in the remineralizing solution on the remineralization of deminalized enamel. The enamel of ninety human premolars was demineralized artificially. This was then irradiated with a Q-switch Nd-YAG laser and remineralized with two remineralizing solutions, one with and the other without fluoride. To evaluate the mineralized enamel, the mineral content of the enamel was calculated and two acid resistance tests (1. mineral content evaluation after HClO4 immersion, 2. dissolved Ca2+ measurement after lactic acid immersion) were performed.
The results were as follows:
1. In the acid resitance test with HClO4, the presence of fluoride in the remineralizing solution increased the acid resistance of the demineralized enamel.
2. In the acid resistance test with lactic acid,
1) laser irradiation increased the acid resistance of the demineralized enamel,
2) the acid resistance effect of laser irradiation was the same as that of the presence of fluoride in the remineralizing solution, and
3) the highest acid resistance was found in the combined treatment of laser irradiation and remineralization with fluoride.抄録全体を表示PDF形式でダウンロード (2050K) -
画像解析による脱灰部のミネラルの定量的観察と初発部位について寺嶋 浩義1992 年 42 巻 2 号 p. 219-232
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーThirty-four molar teeth with decalcification of 37 pits and fissures were utilized to evaluate and clarify the initial changes in the enamel surrounding these sites. Image analyses of photomicrograms, microradiograms, and iso-concentration curves were utilized to evaluate the shape and width of the sites, as well as the frequency of initial decalcification at various locations for each of four pit and fissure shapes.
The results were as follows.
1) Initial decalcification occurred 81.1% of the time in pit regions compared to 18.9% of the time in fissure regions.
2) The frequency of initial decalcification by location was 51.4% in the wall region, 35.1% in the entrance region, and 13.5% in the bottom region.
3) The frequency of initial decalcification by shape of the pits and fissures was 64.9% in type I-2, 13.5% in type I-1, 10.8% in type T, and 10.8% in type I-3.
4) The frequency of initial decalcification by location and shape of pits and fissures was higher on the wall region of type I-2, followed by the entrance region of types I-1, T, and I-2. The frequency was lower in the bottom region of types I-3 and I-2, and the wall region of type I-3.
5) No initial decalcification was noted in the wall region or the bottom region of types T and I-1, or in the entrance region of type I-3.
6) The mean width of the pits and fissures at the site of initial decalcification was approximately 150μm, with most sites wider than 100μm.抄録全体を表示PDF形式でダウンロード (4946K) -
松平 文朗, 北村 中也, 佐野 祥平, 澤 秀樹, 関根 透1992 年 42 巻 2 号 p. 233-238
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーAn opininon survey was made with a questionnaire on medical ethics and social responsibility, and then a comparison was made between dental students and dentists who had graduated from same dental college.
The survey revealed the following opinions. The best policy in dental practice is to get the patient's trust, and to be kind to the patient. Dentists give more attention to attitudes of trust, kindness, and social responsibility than dental students.
In the dentist's opininon, medical ethics should be taught in various departments of the university.抄録全体を表示PDF形式でダウンロード (1040K) -
樋出 守世, 古賀 寛, 井上 一彦, 今井 奨, 高江洲 義矩, 西沢 俊樹1992 年 42 巻 2 号 p. 239-245
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリー試料の分解とフッ素の拡散を高温下で行なわせることにより, 分析時間の短縮とフッ素回収率の向上を計る目的で, テフロン製の密封型耐熱性拡散装置を考案した。この装置と種々の濃度の標準NaF溶液を用いて, フッ素の回収率と拡散温度及び拡散時間との相関を検討したところ, 温度の上昇に伴い拡散時間の短縮が可能となり, いずれのフッ素量 (0.1-100μg) においても120℃10分間の拡散で95-115%の回収率が得られた。また, 天然の試料においても無機質, 魚粉, えび殻, などに含まれるフッ素は120℃10分間の拡散でほとんど全て回収できたが, 茶粉末やKaleなど植物性試料では, 少なくとも120℃60分の拡散が必要とされた。抄録全体を表示PDF形式でダウンロード (1692K) -
喫煙前後の比較埴岡 隆, 岩倉 功子, 雫石 聰1992 年 42 巻 2 号 p. 246-248
発行日: 1992/04/30
公開日: 2010/10/27
ジャーナル フリーPDF形式でダウンロード (1129K) -
1992 年 42 巻 2 号 p. 255a
発行日: 1992年
公開日: 2010/10/27
ジャーナル フリーPDF形式でダウンロード (200K) -
1992 年 42 巻 2 号 p. 255b
発行日: 1992年
公開日: 2010/10/27
ジャーナル フリーPDF形式でダウンロード (200K)
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