出版者

九州歯科学会

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.42, no.6, pp.1086, 1988-12-25 (Released:2017-12-21)

著者

安細 敏弘 笠井 幸子 仲山 智恵 濱嵜 朋子 粟野 秀慈 秋房 住郎

出版者

KYUSHU DENTAL SOCIETY

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.54, no.4, pp.321-325, 2000-08-25 (Released:2017-12-20)

被引用文献数

2

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リチウム電池内蔵電子歯ブラシ, 逆の電流回路を形成する電子歯ブラシ, 電子歯ブラシから電池を除去した歯ブラシのプラーク除去効果を評価することを目的として, 27名を対象に6週間の臨床試験を行った.その結果, リチウム電池内蔵電子歯ブラシは, 対照とした電池のない歯ブラシに対して有意にプラーク除去効果が認められた.逆の電流回路を形成する電子歯ブラシには有意なプラーク除去効果は認められなかった.これらの結果は, リチウム電池内蔵電子歯ブラシの植毛部がマイナスに帯電することによりプラーク除去効果が得られることを示している.

著者

鯨 吉夫 八木 まゆみ 河野 稔広 槙原 絵理 鱒見 進一

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Ky◆U016B◆sh◆U016B◆-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.65, no.3, pp.76-82, 2011-10-25

参考文献数

12

著者

野田 修司 野代 悦生 吉松 史恵 楠本 修己 藤田 邦彦 山田 建二郎

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.47, no.3, pp.377-384, 1993-06-25

被引用文献数

2

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Besides good occlusal relationships, most orthodontic patients also expect improvement of their lip profiles. So it is necessary for us orthodontists to be aware of these when making the treatment plan. Three standardized graphics each representing Convex, Straight and Concave types of the lateral soft tissue profile as templates were used. According to the modern sense of facial aesthetics, authors tried to interpret the relation between the E-line and the beauty of lateral soft tissue profile by evaluating the changing of the lower lip position of each template. By the survey that could be helpful in making treatment planning, following results were acquired : 1. All the subjects involving orthodontists, dental students and general persons judged that the better lower lip position for beautiful lateral profile was ranged from 0 to 6mm posterior to the E-line in the normal jaw group (type B). The range was smaller in the mandible retrusion group (type A) and further smaller in the mandible protrusion group (type C). 2. The lower lip position at 2mm posterior to the E-line was found to be the best for beautiful lateral profile in each type. 3. The most beautiful lateral profile was referred to the template of type B with the lower lip locating 2mm posterior to the E-line. 4. No significant differences were found in judgment among the subjects. It was suggested from the foregoing results that the esthetical goal would be successfully expected in the sense of orthodontics by positioning the lower lip at 2mm posterior to the E-line regardless of the jaw relation.

著者

安藤 浩伸

出版者

九州歯科学会

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.50, no.3, pp.24, 1996-06-25 (Released:2017-12-20)

著者

中原 敏

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.29, no.2, pp.167-168, 1975-03-31

著者

西 正勝 黒木 賀代子 野口 知雄

出版者

九州歯科学会

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.49, no.3, 1995

著者

粟野 秀慈 安細 敏弘 邵 仁浩 濱嵜 朋子 吉田 明弘 園木 一男 高田 豊 竹原 直道

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.61, no.4, pp.131-132, 2007-11-25

著者

天野 裕治

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.46, no.1, pp.319-328, 1992-02-25

被引用文献数

1

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Using the technique of in vivo microdialysis, extracellular concentrations of serotonin and 5-hydroxyindoleacetic acid (5-HIAA) were determined in the striatum, thalamus, dentate gyrus and prefrontal cortex while Sprague-Dawley rats underwent immobilization stress for twenty minutes. Microdialysis probes had semipermeable cellulose tubes (molecular weight cutoff 50, 000 ; O.D. 0.22 mm). Perfusion was started at 12 or 36 hours after implantation of the microdialysis probe under a freely-moving condition. Measurements of the extracellular concentration of serotonin and 5-HIAA were made at twenty minute intervals, which were started 120 minutes after the onset of the perfusion. Serotonin and 5-HIAA were quantified by a high-performance liquid chromatography coupled with an electrochemical detector. Extracellular serotonin levels increased following twenty minute immobilization stress in all four regions of the rat brain. The immobilization stress relatively increased the extracellular serotonin levels in the prefrontal cortex and dentate gyrus. These results suggest that twenty minute immobilization stress induces the activation of serotonin release in rat brain regions concerning the induction of anxiety.

著者

楪 雅行 佐藤 義輝 内田 康也 田島 清司

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.39, no.6, pp.862-869, 1985-12-25

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The widely used dental Ag-Pd-Au alloy is frequently melted with a gas-air blowtorch, and cast by a centrifugal casting machine. In this case, the timing of casting the molten alloy is generally determined by means of the observation of its appearance at melting. There are few reports on the temperature of the molten alloy at casting. Therefore, the casting temperature of Ag-Pd-Au alloy melted with a gas-air blowtorch was measured, as well as the heating time until the start of castig. This study was scheduled to examine the effects of remelting, flux addition, and operator's experience in casting. Six operators, three well and three poorly experienced, were selected. The casting temperatures adopted by the three well experienced operators tended to rise gradually as the repetition times of melting increased. The difference between the casting temperatures at the first and the 10th melting without flux ranged from 10 to 15℃. On the other hand, the casting temperatures adopted by two poorly experienced operators of the three tended to fluctuate sharply, and no rising tendencies were observed in the casting temperatures. Flux addition in due course of heating the alloy reduced the difference between the maximum and the minimum casting temperature. The rise in casting temperature was suppressed by flux addition in the repeated melting by the well experienced operator group, resulting in about only 5℃ rise from the first to the 10th melting. The time required for heating the alloy from the liquidus to the casting temperature was nearly constant in the case of the well experienced operator group, but in the case of the poorly experienced one it fluctuated sharply, irrespective of flux utilization. Consequently, it may be said that the operator's experience and/or skill are inevitably necessary for casting Ag-Pd-Au alloy by judging the casting temperature from the appearance of the molten alloy.

著者

山田 研治

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.42, no.1, pp.91-105, 1988-02-25

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トノサマガエル(Rana nigromaculata)の右側舌尖部を分岐部より切断した後, 3か月から約1年間飼育した.夏期は3か月, 冬眠期間を含む場合は約1年間経過後, 切断側舌尖部に再生が認められたので, 左側の舌尖部を対照側として, 実体顕微鏡および走査型電子顕微鏡によって形態学的に, また, 再生部の感覚については生理学的に検討した.走査電顕写真をもとに, 再生部の面積, 茸状乳頭数, 単位面積当たりの茸状乳頭数を調べ対照側と比較した.再生部と対照側の感覚は再生部と対照側の舌尖部を支配する舌咽神経を残し, 他の舌体部の感覚神経を全て切断した標本を作成し, 再生側と対照側の舌尖部に触刺激と化学的刺激を加え, 舌咽神経の応答を比較した.その結果を要約すると以下のようである.1. 夏期3か月, 冬眠期を含む11か月, 12か月および13か月の各群は, いずれにも舌尖部の再生が認められた.20実験例の再生部の面積の平均値は0.9mm^2で, 対照側の舌尖部の大きさの約1/3であった.2. 再生部にも茸状乳頭が認められた.再生部の茸状乳頭数は20例の平均で25個, 対照側は39個であった.3. 20例の再生部および対照側の1mm^2当たりの茸状乳頭数は, それぞれ28.2個と15.5個で, 再生部では, 特に切断部付近に茸状乳頭が密集していた.4. 再生部と対照側の茸状乳頭の平均直径は, それぞれ9.5μmと12.2μmで, 再生部の乳頭は小さかった.また, その形が円形でないものが認められた.5. 各実験例はいずれも触刺激によく応答した.その結果は対照側と同様であった.6. 再生側は化学的刺激によく応答した.再生側の化学的刺激に対する応答は対照側舌尖部の場合と全く同じ傾向であった.7. 水刺激の場合, 刺激液の流出と同時に応答し, 刺激を止めた後にもわずかにインパルスが発生し, 消失した.0.5M NaClの場合も水と同様に刺激の開始と共にインパルスが発生し, 刺激を中止した後にも, かなり長くインパルスが発生した.また, インパルスの頻度はもっとも大であった.0.01M HClの場合, 刺激開始直後, 短期間インパルスが群発したが, 刺激中にも消失した.0.5M sucroseはインパルスが発生しない例や, 発生してもごく少数であった.0.01M quinine-HClの場合には, 頻度の低いインパルスが発生した.この場合にも刺激を中止した後にも少数のインパルスが持続した.

著者

堀尾 明秀

出版者

九州歯科学会

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.26, no.6, pp.400-409, 1973-03

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Using a total of 30 samples of eel, Anguilla japonica, mode of blood supply in the head was studied, and detailed observations were made on the blood supply in the upper and lower jaw teeth, vomerine teeth and their surrounding tissues. Besides using conventional technics, the scanning electron microscope was used to observe the actual shape of individual teeth, their mode of standing and to know the three dimensional relationship between the blood supply and the teeth. Results were summarized as follows. 1. The main artery supplying the region is A. carotis communis that derives from A. branchalis efferentes I. This artery branches into A. carotis externa and A. carotis interna, and the latter branches into A. cerebri and A. ophthalmonasalis. The latter artery further branches into A. ophthalmica and A. maxillaris and finally turns into A. nasalis. A. carotis externa, on the other hand, makes a turn in the orbit and sends out A. facialis mandibularis, then, after further sending out R. dentalis superior posterior becomes to be A. mandibularis. A. mandibularis sends out two branches, A. dentalis inferior anterior that runs along the inside wall of the mandible, and A. dentalis inferior posterior that runs within the mandibular canal. 2. The vomerine teeth group is supplied by the arterial branches sent out from ventral side of A. nasalis and distributing there from outside. The maxillary teeth group is supplied by A. dentalis superior anterior steming from A. maxillaris and by A. dentalis superior posterior steming from A. nasalis. Besides, these teeth group is distributed by R. dentalis superior posterior coming from A. mandibularis. The mandibular teeth group is supplied by A. dentalis inferior anterior and A. dentalis inferior posterior, both stemed from A. mandibularis. 3. Observations on the mode of arterial distribution in the teeth and their surrounding tissues revealed that there are two kinds of distribution whereby some branches go directly to the periodontal tissues and others once enter into the bone and then proceed to the pulp of individual teeth for distribution. It was particularly noticed with the latter branches of artery that they are ramified at the intervals of every 5 to 6 teeth, and, on reaching near the dental pedicles, a part of the branches is distributed to the dental pulp and the rest enters into small pits between the bone and the pedicles to be distributed to the successive teeth and the surrounding tissues.

著者

安光 千昭

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.44, no.6, pp.959-975, 1990-12-25

被引用文献数

6

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In order to investigate the mandibular movements and function after sagittal split ramus osteotomy for prognathism, occlusal contact area and points, distance of mandibular border movements, myographic activity of masseter and temporalis, biting force and masticatory efficiency were measured before and 3, 6, 12 months after surgery. Postoperative evaluation under the consideration of fixation method of bone segments and with or without orthodontic therapy was carried out. The results were as follows : 1. Occlusal contact area and points tended to increase from 3 months after surgery compared with preoperative level and they indicated a significant increase 12 months after surgery. 2. Maximal distance of opening mouth indicated a significant decrease 3 and 6 months after surgery compared with preoperative level. Significant difference however was not recognized 12 months after surgery. Distance of anterior and lateral border movements showed an increasing trend from 6 months after surgery and the distance of left border movements indicated a significant increase 12 months after surgery. 3. Myographic activity of bilateral masseter decreased 3 months after surgery compared with preoperative level. A significant increase was recognized 12 months after surgery. Myographic activity of bilateral temporalis showed an increasing trend from 3 months after surgery compared with preoperative level. Twelve months after surgery a significant increase was recognized. 4. Biting force on both sides decreased 3 months after surgery compared with preoperative level, but 12 months after surgery it indicated a significant increase. 5. Masticatory efficiency tended to increase from 3 months after surgery compared with preoperative level. Six months after surgery significant increase was recognized. 6. Significant correlation of masticatory efficiency was recognized with occlusal contact area, points and myographic activity of temporalis preoperatively and with all examined items except distance of anterior and lateral border movements postoperatively. Correlations between left and right in myographic activity and biting force, as well as between masseter and temporalis in myographic activity strengthened with the passage of time after surgery. 7. Screw fixation was superior to wire fixation in occlusal contact area, distance of anterior border movements, and myographic activity of masseter. On the contrary wire fixation was superior to screw fixation in myographic activity of temporalis and left biting force. Occlusal contact points and masticatory efficiency showed equal improvement of function. 8. The group combined with the orthodontic therapy was superior to the group without it in occlusal contact area and points, myographic activity of right masseter and temporalis, right biting force and masticatory efficiency. On the contrary in the group without the orthodontic therapy, nothing was superior to group with it. From the above results, it was suggested that application of sagittal split ramus osteotomy for prognathism is very meaningful for not only esthetic and morphological improvements but also improvement of mandibular movements and function.

著者

中塚 美智子 隈部 俊二 岩井 康智

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.60, no.6, pp.158-168, 2007-01-25

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上顎歯列模型62例について,形態決定に関与している因子を探るためフーリエ級数を用いて比較検討した.結果は以下の通りである.1)方形,帯円方形,帯円形,帯円V字形の4型とも,第4周波数までで歯列弓形態を再現することが可能であった.2)歯列弓の大きさを示すフーリエ級数の定数ならびに第1周波数の振幅では形態間に有意差は認められなかったが,歯列弓の形を表す第2,3,4周波数の振幅では形態間に有意差が認められた.3)定数は前歯部幅径ならびに歯列弓幅径との高い正の相関がみられた.第1周波数の振幅は歯列弓長径と前歯部幅径との正の相関がみられた.第2周波数の振幅は歯列弓幅径と高い正の相関,前歯部の彎曲度合,歯列弓長径と幅径の割合と高い負の相関が,第3周波数の振幅は前歯部幅径,歯列弓幅径と正の相関,前歯部の彎曲度合と負の相関が,第4周波数の振幅は前歯-臼歯移行部動径差と正の相関がみられた.これらより,上顎歯列弓の形態の決定には歯列弓長径と幅径の割合,前歯部の彎曲度合,前歯部から臼歯部への移行部の形態が関与していることが示唆される.

著者

牟田 龍生

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.28, no.5, pp.559-581, 1975-01-31

被引用文献数

3

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As a result of experimental bite raising on 7 adult and 7 young monkeys, the histological observation on "relapse" after retention period was undertaken with following findings. 1. The bite raising was achieved by inferior backward rotation of the mandible. Then, alveolar bone was stabilized by the masticatory muscles, which acted on the alveolar bone via teeth under the newly established occlusion. 2. Concerning muscle tissue, differences were evident between adult and young monkeys. That is, the muscle tissue of adult monkeys revealed severe regressive change during bite raising and retention period, but no severe change revealed in the muscle tissue of young monkeys. 3. The adaptation of muscle tissue was rather difficult than that of bone tissue. 4. The adaptation of bone tissue was earlier and stronger than that of muscle tissue. 5. Even in five days after the bite raising, alveolar bone, zygomatic arch, mandibular angle and temporomandibular joint revealed bone resorption. Through the retention, these bones developed osteoblastic mechanism and increased stabilization longitudinally. This trend was more active in young monkeys. Additionally, the muscle insertion parts of adult monkeys accompanied the bone transformation. From the above findings, it is considered to be the adaptation difficulty of the muscle tissue that "relapse" after bite raising is induced. Therefore, the author proposed that the orthodontic treatment, which required jaw transposition, should be done during growth period as much as possible. Although the adaptation of muscle tissue was difficult after growth period, the capability was not completely denied

著者

中島 孝 神代 達司 村田 智達 益城 久治 中務 澄仁

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.15, no.3, pp.193-196, 1962

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Lingual papillae were studied on the zebra (Equus lebra) aged 12 old. The results were summarized as follows. On the dorsal surface of the tongue there were viewed, Papillae vallatae, Papillae foliatae, Papillae fungiformes, Papillae filiformes, and Papillae conus. 1) Papillae vallatae occurring counted 3. They were very large, longitudinal diameter 8∿10mm-, oval or longoval in shape. The taste buds numbering approximately 10-15 were located on the epithelium facing to the groove, but few in the rate of the size. 2) Papilae foliatae were small, longitudinal diameter 10mm, counted approximately 5-6 groove. The taste buds counted approximately 10-15. 3) Papillae fungiformes were distributed on the lateral margin of the anterior of the tongue (5-7 on each side). They lacked taste buds, but in the Lamina propria muoosa nerve fibers bundle were rich. 4) Papillae conus occured on the lateral margin of the tongue (30-40 on each side).

著者

寺下 正道 庄野 庸雄 陳 克恭 北村 知昭 農蘇 千絵 諸冨 孝彦 矢野 淳也 河野 直博

出版者

九州歯科学会

雑誌

九州歯科学会雑誌 (ISSN:03686833)

巻号頁・発行日

vol.56, no.6, pp.236-242, 2002

参考文献数

10

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ハイドロキシアパタイト(HAP)を種々のフッ素濃度の溶液と反応させると, より耐酸性のフルオロアパタイト(FAP)やフッ化カルシウム(CaF_2)が生成される.CaF_2よりFAPの方がより安定した結晶構造を有し, 耐酸性を獲得するにはより有効である.HAPからFAPを生成させる至適フッ素濃度を求めるためにHAPから生成したFAPの量を測定することが必要である.この方法として現在用いられている電子スピン共鳴により測定する方法(ESR法)と1M KOHによりCaF_2を溶出させる方法(KOH法)とを比較した.ESR法ではフッ素濃度100 ppm以下の時にFAPの生成が最大を示し, 浸漬した溶液のフッ素濃度を増大させるにつれてCaF_2の生成が多くなり, FAP生成が抑制された.これは, X線回折による定性結果と一致していた.一方, KOH法では, フッ素濃度の増大とともにFAPの生成も増大するという結果が得られ, X線回折による定性結果とは異なっていた.以上の結果から, HAPから生成するFAPを定量する方法としてESR法の方がKOH法より有効であることが明らかとなった.

著者

寺下 正道 庄野 庸雄 陳 克恭 北村 知昭 農蘇 千絵 諸冨 孝彦 矢野 淳也 河野 直博

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.56, no.6, pp.236-242, 2002-12-25

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ハイドロキシアパタイト(HAP)を種々のフッ素濃度の溶液と反応させると, より耐酸性のフルオロアパタイト(FAP)やフッ化カルシウム(CaF_2)が生成される.CaF_2よりFAPの方がより安定した結晶構造を有し, 耐酸性を獲得するにはより有効である.HAPからFAPを生成させる至適フッ素濃度を求めるためにHAPから生成したFAPの量を測定することが必要である.この方法として現在用いられている電子スピン共鳴により測定する方法(ESR法)と1M KOHによりCaF_2を溶出させる方法(KOH法)とを比較した.ESR法ではフッ素濃度100 ppm以下の時にFAPの生成が最大を示し, 浸漬した溶液のフッ素濃度を増大させるにつれてCaF_2の生成が多くなり, FAP生成が抑制された.これは, X線回折による定性結果と一致していた.一方, KOH法では, フッ素濃度の増大とともにFAPの生成も増大するという結果が得られ, X線回折による定性結果とは異なっていた.以上の結果から, HAPから生成するFAPを定量する方法としてESR法の方がKOH法より有効であることが明らかとなった.

著者

豊島 邦昭 嶋村 昭辰

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.45, no.5, pp.613-618, 1991-10-25

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The fine structure of Leydig cells in the lingual epithelium of adult axolotls, Ambystoma mexicanum, was studied by electron microscopy. Leydig cells were characterized by the presence of numerous secretory granules as well as rough endoplasmic reticulum and Golgi apparatus. The exact function of these granules still remains obscure. The Langerhans' net was seen in the peripheral cytoplasm of the Leydig cell in close association with desmosomal attachments and might play as a framework supporting the cell.

著者

古本 克磨 山口 八束 西 正勝 巨山 保 馬渡 和夫 梶山 稔 足立 公助 坂口 元一 黒髪 良治 平川

出版者

九州歯科学会

雑誌

九州齒科學會雜誌 : Kyushu-Shika-Gakkai-zasshi (ISSN:03686833)

巻号頁・発行日

vol.17, no.1, 1963-09-30