著者

三浦 康次郎 木野 孔司 渋谷 寿久 平田 康 渋谷 智明 佐々木 英一郎 小宮山 高之 吉増 秀實 天笠 光雄

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.65, no.1, pp.1-5, 1998-03-31 (Released:2010-10-08)

参考文献数

18

被引用文献数

10 8

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This paper described the incidence of inferior alveolar nerve paralysis following surgical removal of impacted third molars. The investigated cases were 789 patients with 1, 299 teeth that were surgically extracted. Eight (0.6%) patients had the inferior alveolar nerve paralysis and one (0.08%) had lingual nerve paralysis. As for the patients with inferior alveolar nerve paralysis, the incidence was 0.4% in those aged 20 to 29 years, 0.6% in those aged 30 to 39 years, and 3.5% in those aged over 40 years. This study showed that the incidence of inferior alveolar nerve paralysis occurred more frequently in older age cases and in the cases in which the root splitting or the removing the surrounding bone was needed.

著者

菅原 規子

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.67, no.3, pp.251-263, 2000-09-30 (Released:2010-10-08)

参考文献数

19

被引用文献数

1

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The purpose of this study is to clarify the occlusal contact mode between the upper and lower molars on the working side of group function occlusion during lateral excursion.After the intercuspal position (IP) and two lateral positions (Ll, the middle point between IP and L2 ; L2, the edge-to-edge occlusal position of the molars) on the Gothic arch were defined, occlusal contactrelations in these three occlusal positions were recorded, using black silicone. Digital data of real occlusal contacts and visualized data of close (less than 3opm) occlusal areas, by computer image processing, were analyzed.The conclusions are as follows1. Although the numbers of real occlusal contacts and the visualized occlusal area tend to decrease toward L2 during lateral excursion, the former, in some cases, goes up and down.2. Functional cusps play an important part in occlusal contact at the intercuspal position.3. Occlusal contact points are on the functional cusps of the upper and lower molars, which can be clinically regarded as certain points, and these points slide on the inclining non-functional cusps of antagonistic teeth during lateral excursion.4. Each upper and lower molar has 2 to 6 occlusal contact points near the top functional cusps at the intercuspal position, and some of them contact continuously during lateral excursion.

著者

山本 肇 鈴木 進

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.24, no.1, pp.72-76, 1957 (Released:2010-10-08)

参考文献数

23

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Recently the anthors experienced two autopsy cases of the suspected lead poisoning and decided it's diagnosis by demonstration of clear lead line at hard tissues, especially dentin. The other findings of the oral tissues were gingivitis ulcerosa and lead line about 1 mm wide at the labial gingiva of the lower incisor and buccal gingiva of the upper left second premolar and first molar in the first case and slight gingivitis in the second case. Moreover in polarogram, the anthors proved existence of lead at the liver of the first case and at the liver, bone and brain of the second case.

著者

高田 典孝

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.65, no.1, pp.64-73, 1998-03-31 (Released:2010-10-08)

参考文献数

38

被引用文献数

6 3

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Modulation of the tibialis anterior (T.A.) H reflex and the reciprocal Ia inhibition from the ankle flexor to the extensor were studied during voluntary teeth-clenching in 7 healthy adult volunteers to investigate the correlation between the oral motor activity and the somatic motor function.The TA. H reflex was significantly facilitated during voluntary teeth-clenching, and the amount of this facilitation increased with the level of masseter EMG activity. Furthermore, the reciprocal Ia inhibition of the soleus H reflex, induced by stimulation of the common peroneal nerve at a subthreshold intensity for evoking the T.A.M wave, was significantly depressed during voluntary teeth-clenching.It was concluded that 1) the TA. H reflex is facilitated during voluntary teeth-clenching, 2) there is a positive correlation between the amount of facilitation of the TA. H reflex and the level of teeth-clenching force, and 3) the reciprocal Ia inhibition of the crural muscle is reduced during voluntary teeth- clenching. It was suggested that teethclenching contributes to stability of body stance by increasing the stiffness of the ankle joint.

著者

鹿野 俊一 山下 靖雄

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.66, no.3, pp.262-269, 1999-09-30 (Released:2010-10-08)

参考文献数

43

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Latin anatomical names ofFossaeandFoveaein the skeleton were analyzed and compared with Japanese anatomical names for better understanding of the structures of the human body and for possible revision in the future.The conclusions were as follows:1. In general, round excavations were calledFoveae (singular: Fovea), and nonround excavations were calledFossae (singular: Fossa) . Some shallow excavations for articulation and some shallow excavations with the names which indicate their contents were calledFoveaeeven though they were not round.2. Each name ofFossaecontained the word which indicates form, location or content ofFossa, the bone (or osseous structure) which articulates withFossa, or the muscle which is attached toFossa.3. Each name ofFoveae contained the word which indicates location, content or articulation ofFovea, the bone (or osseous structure) which articulates withFovea, or the muscle (or muscular trochlea) which is attached toFovea.4. The Japanese name which corresponds toFossa caninashould be changed from Kenshi (canine tooth) =ka (fossa) to Kenshikin (canine muscle) = ka or Koukakukyokin (levator anguli oris muscle) =ka.5. The Japanese name which corresponds toFossa pterygopalatinashould be changed from Yoku (wing) = kougai (palate) = ka (fossa) to Yokutotsu (pterygoid process) = kougaikotsu (palatine bone) = ka.

著者

豊福 明

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.74, no.3, pp.161-168, 2007-10-31 (Released:2010-10-08)

参考文献数

57

被引用文献数

4 1

著者

橋本 巌 後藤 仁敏 小寺 春人 井上 孝二

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.43, no.3, pp.332-349, 1976 (Released:2010-10-08)

参考文献数

16

被引用文献数

1 1

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サケ科魚類の口腔に歯が多数分布していることはよく知られているが, 著者らはニジマスでは咽頭にも咽頭歯と鰓耙骨歯 (鰓弓面の鰓耙にあり, 鰓耙骨に植立する) の2群の歯があることをみて報告してきた。ここでは, このような歯が他のサケ科3属5種 (サケ属ヒメマスとヤマメ, ニジマス属ブラウンマス, イワナ属イワナとカワマス) にも分布しているかどうかを検索した。口腔から消化管起始部まで, X線撮影やalizarin red染色等を行って内腔面を精査し, また光顕組織標本を作製して鏡検した。その結果, 咽頭に上下の咽頭歯群と多数の鰓耙骨歯が認められた。これらの歯は口腔の歯と同様, 円錐形で均質な象牙質からなり, 多生歯性で, ただ微細な鰓耙骨歯だけは歯堤の出現なしに形成されるなど, ニジマスと同様であった。結論として, これらの淡水産マス類では口腔と咽頭に同様の歯が共通してみられ, 分布状態もほとんど同様であるが属により若干差異がみられた。

著者

野村 泰世

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.53, no.1, pp.136-156, 1986-03-31 (Released:2010-10-08)

参考文献数

55

被引用文献数

3 2

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Characteristics of the motor units recorded from the orbicularis oris muscle in 7 subjects were studied during voluntary closure of the lips. The activity of the single motor unit of the orbicularis oris inferior muscle were recorded with bipolar silver ball electrodes improved for this study and the force generated by the lip-closure was simultaneously recorded with a high sensitive sensor. The results obtained were as follows : (1) The contraction time of the motor unit, which was measured by the spike-triggered averaging method, varied from 9 to 59 ms. About 98% of the motor units studied had a contraction time of less than 55 ms, which would be classified as a fast twitch motor unit. (2) The motor unit which had a larger twitch tension tended to have a longer contraction time than that of the small-twitch tensioning units. Increasing the force gradually, a few motor units were recruited orderly and the firing rate of each separate unit increased progressively. These findings suggest that the control of the muscle force caused by the lip-closure might depend on the rate moduration of motor units rather than on the orderly recruitment fashion of the motor unit. (3) The motor units tended to be highly f atigable, as judged by both the spike amplitude and the duration during continuous lip-closing.

著者

懸田 克躬

出版者

口腔病学会

雑誌

口腔病學會雜誌 (ISSN:03009149)

巻号頁・発行日

vol.11, no.2, pp.136-145, 1937 (Released:2010-12-08)

参考文献数

16

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著者ハ, 口蓋圖Palatogrammト舌圖Linguagrammトヲ取ツテ, 日本語音ノ構音機構ヲ檢シテ, 次ノ諸點ニ就テ多少從來ノ諸家ト異ナル所見ヲ得, 其成績ニ基イテ二三ノ考察ヲ加ヘタ。(1) 二重母音的ニ發セラレル「イ」ハiトeトノ中間ニハアルガiニ近イ。(2) 「ヤ」「ヨ」頭音 (半母音) ノ構音デハ, 舌ノ位置ハ「イ」デナクテ「エ」デアルト云ハレテ居ルガ, 著者ニ於テハ多クノ場合矢張「イ」ニ近イ。(3) 「サ」行音「シ」ハ∫iデハナク, ソノ子音ノ構音ハsトcトノ中間ニアツテ, 寧ロ後者ニ近イ。(4) 「カ」行子音ノ構音部位ハ「キ」「ケ」「ク」「カ」「コ」ノ順ニ後退スル。(5) 「ラ」行音中, 「ロ」音デハ口蓋ト舌トノ間ニ細イ間隙ヲ殘ストイフコト (Edwards) ハ通例ニハ妥當シナイ。「ラ」行音ハ少クトモ語頭ニ於テハ, 皆一種ノ破音デアル。

著者

瀧本 賢一郎

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.68, no.1, pp.141-147, 2001-03-31 (Released:2010-10-08)

参考文献数

36

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The purpose of this study was to evaluate the effect of an oral appliance (Sleep Splint) for obstructive sleep apnea syndrome (OSAS) patients, and to examine problems with this therapy. Fixed in the oral cavity, the Sleep Splint intends to reduce the occurrence of apnea and prevent blockage of the upper airway during sleep.In this study, the therapy using Sleep Splint was done for 50 patients (41 men and 9 women) who had been introduced by the physician diagnosing with OSAS. Sleep monitoring around an oral appliance mounting was carried out, and the effect was evaluated. In addition, the ESS was used in respect of the evaluation of the daytime sleepiness. However, four patients stopped using the oral appliance due to serious discomfort in the maxillofacial region, and they were excluded from the study. Forty-six patients were classified into three groups by the seriousness of OSAS, or into two groups according to body fatness, and the difference of the effect between each group was compared. The results obtained were as follows.1. As to the Apnea hypopnea index (AHI), Apnea hypopnea density, Oxygen desaturation, and ESS, there was statistically significant improvement regardless of the seriousness of OSAS and body fatness.2 . About all patients except for the patient group of the mild cases (AHI < 10), the occurrence of snoring showed the statistically significant improvement.These results indicated that oral appliance therapy was an effective treatment for OSAS.

著者

杉本 久美子 井関 八郎

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.63, no.4, pp.632, 1996-12-30 (Released:2010-10-08)

参考文献数

5

著者

埴 英郎

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.60, no.3, pp.372-397, 1993 (Released:2010-10-27)

参考文献数

72

被引用文献数

1

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In order to study the changes of the intraoral metals, the surface condition and composition of the crowns removed from mouths were analyzed by SEM and EPMA. Thirty-four samples were categorized into four types of alloys. Corrosive changes were evaluated by comparing the analysis results between the crown surface and its fresh sectioned surface, and also with the data from former studies. 1. Changes observed in the Au alloys were slight compared to the other three types, both in surface feature and composition, except for a slight decreace in Cu. 2. In some Au-Ag-Pd alloys, nearly no dissolution was evident. Composition changes were small, with a slight decrease in Ag and relative increase in Pd. 3. The greatest changes were observed in the Ag-Sn-Zn alloys and Ag-In alloys, even with short intraoral usage period. Generally, their surfaces were rough, with thick layers of organic materials. The dendritic structure was distinct, and dissolution between each dendrite was observed. 4. Many of the Ni-Cr alloys presented dendritic structure with dissolution. Decrease in Ni and relative increase in Si and Cr were observed. 5. Corrosive changes showed a close resemblance to the results obtained by the conven-tional basic tests. However, there were some features which did not coincide, depending on the types of alloys.

著者

鈴木 乃里子

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.61, no.1, pp.144-158, 1994-03-31 (Released:2010-10-08)

参考文献数

28

被引用文献数

1 2

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The most effective method to treat metal allergy may be allergen elimination. Information on the exact location of the allergens becomes essential for this treatment. An XRFS (X-ray fluorescence spectroscope) was used for the detection of such elements and applied for the treatment of these patients.1. Evaluation of the apparatus preceding its clinical application proved that the reliability and the detection limit for pure elements were comparative to those of the Electron Probe Microanalyzer. A notable decrease in the emitted X-ray intensity was observed when a sample was analyzed through a medium with thickness of more than 5 mm.2. The analysis results of the restorations showed that the most frequently used alloys were Ag-Sn-Hg amalgams, Au-Ag-Pd alloys and Ag alloys. Some of the elements with high prevalence rates were Ag, Cu, Zn, Au, Pd, Sn, and Hg.3. Personal and household items suspected of containing allergen metals were analyzed. Some of the frequently detected elements were Fe, Cu, Mn, Zn, Ni, Cr, and Au.4. With XRFS, analysis of bulk metals and those samples in various forms became possible. A clinical case with the lesion resolved after the allergen elimination was reported. This proved that the use of XRFS enabled us to deal more definitely and effectively towards metal allergy.

著者

大隅 典子 江藤 一洋

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.56, no.1, pp.185, 1989

著者

小合 宗一

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.54, no.1, pp.37-46, 1987

被引用文献数

1

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In order to elucidate cell surface molecules involved in the craniofacial morphogenesis, we adopted the development of the lens placode as a model system. We raised a rabbit antibody (anti-C1) which inhibits Ca<SUP>2+</SUP>dependent cell-cell adhesion of Cl cell, a cell line derived from the fetal rat lens epithelial tissue, and examined the effects of anti-C1 on the lens development of the rat embryos under the whole embry culture. <BR>The rat embryos were collected from the uteri at day 11. The anti-C1 Fab fragments dissolved in Hanks saline were injected near the eye anlagen with a glass capillary of about 30 pm in diameter. The injected embryos were incubated with the whole embryo culture system for 20 hours. The preimmune rabbit Fab fragments and Hanks saline alone were also injected as controls. After incubation, most of the embryos injected with the anti-C1 Fab showed an abnormal lens development, in particular, the incomplete separation of lens vesicle from epidermis, while embryos injected with Hanks saline or control antibodies showed a complete segregation of lens vesicle. <BR>It is suggested that the Ca<SUP>2+</SUP>-dependent cell adhesion molecule of Cl cell is the target molecule of anti-C1 which is involved in the lens development. The identification of the target molecule is in progress by raising monospecific antibodies.

著者

水野 明夫

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.39, no.3, pp.489-517, 1972 (Released:2010-10-08)

参考文献数

102

被引用文献数

1

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最近5年3カ月間に, 東京医科歯科大学歯学部附属病院第1口腔外科で行なわれた切除手術 (照射群31例, 対照群14例) , および病理解剖 (照射群1例) で得られた成熟下顎骨を対象とし, 口腔癌放射線治療後の放射線骨障害の病態を病理組織学的 (脱灰染色標本, およびmicroradiography) , ならびにX線学的 (摘出物X線写真) に観察した。その結果を要約すると次の通りである。1.歯周組織では歯槽骨の高度な不規則な吸収が認められた。2.骨膜では骨芽細胞, 線維細胞の減少傾向, 線維の硝子化がみられた。3.皮質および骨梁の吸収性変化として, 不規則, 奇妙な形態の吸収, 骨小腔の拡大などが観察された。4.骨細胞の障害の表現として, 空の骨小腔ならびに核を認めえない骨小腔の数の割合を求めた。その結果, 臨床的経過とかなりの対応が得られた一方, 臨床症状を伴わない潜在的な障害も相当程度あるものと考えられた。5.硬化性の変化として, 海綿質骨梁増生, 皮質外表の骨梁増生および緻密骨添加, Havers管, Volkmann管の狭窄ならびに閉塞などが認められた。6.骨髄腔, 下顎管内および吸収腔において, 線維化, 炎症性細胞浸潤, 組織融解がみられた。7.血管系の変化として, 下歯槽動脈, 細動脈に内膜の肥厚, 内腔の閉塞, 弾性線維の配列の乱れ, 崩壊, 融解がみられ, またHavexs管, Volkmann管内血管にも種種の様相の閉塞像が観察された。8.X線写真所見により, I類: 不規則な吸収が主なもの, II類: 硬化性陰影が強いもの, III類: 吸収像, 硬化像が不規則に混在するもの, IV類: 著変ないもの, の4類に分類され, III類が圧倒的に多かった。9.X線写真のX線透過像については, 組織像での皮質, および骨梁における様様の程度の吸収像が, またX線不透過像については, 種種の骨増生, 添加が基本をなしていると考えられた。10.これら下顎骨における変化の程度は, 局所的臨床所見 (特に放射線治療後の) とおおよその関連性が認められた。11.下顎骨のいわゆる放射線骨壊死の成り立ちについて, 文献的考察を加え, 若干の検討を行なった。

著者

小玉 剛

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.56, no.2, pp.263-288, 1989-06-30 (Released:2010-10-08)

参考文献数

120

被引用文献数

24 18

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The biocompatibility of two different titanium alloys, Ti-6Al-4V ELI and Ti-5Al-2. 5Fe, and pure titanium were evaluated. The results were as follows1) Titanium alloys were implanted into the dorsal subcutaneous tissues of the Hartley guinea-pig for 12 weeks, immersed in calf serum or in Ringer's solution for 8 weeks. The surface changes of the titanium alloys were observed by SEM and the chemical composition was analyzed by XMA. No evident surface changes were found.2) Three hundred mg, 200 mg and 100 mg of the powders of the tested materials were immersed in 2ml of Eagle's MEM, incubated for 1-7 days, 8-21 days and 2270 days at 37°C.The amount of metallic elements dissolved in the solutions was measured by ICP and AAS.The detected corrosion rates of V and Al contained in the solution, in which Ti-6Al-4V ELI 100 mg was immersed for 1-7 days, were 194.3±17.6 and 73.0±28.1 pg/mg alloy/day, respectively. V was released more than Al.The amount of Ti was below the detectable limit.The solution Ti-5A1-2.5 Fe 100 mg immersed for 1-7 days contained 31.9±34.4 pg/mg alloy/day Fe and 25.7±6.3 pg/mg alloy/day Al. Only in the solution 300 mg immersed for 1-7 days was Ti detected at 1.4 pg/mg alloy/day.3) By the bacterial mutation assay of Salmonella typhimurium TA 98, Salmonella typhimurium TA 100 and Escherichia coli WP2 uvrA-, the solutions, in which the tested materials were immersed, were not found to be mutagenic.4) By the UDS assay, the grain counts on autoradiography with the solutions, in which the tested materials were immersed, were not greater than the negative control.The results suggest an excellent corrosion resistance of the titanium alloys.Mutagenicity was negative by these mutation assays, indicating that the tested alloys and pure titanium are safe for humans and animals.

著者

鈴木 博

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.57, no.4, pp.612-630, 1990 (Released:2010-10-27)

参考文献数

36

被引用文献数

1

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For the purpose of investigating to clarify the differential diagnosis and treatment of TMJ dysfunction, The TMJ sounds were analysed acoustically using accelerometers. The 101 TMJ sounds were recorded from 20 patients. Jaw movement and electromyogram (EMG) were recorded imultaneously. Comparison of the TMJ sounds to the jaw movement and EMG were madse. The following conclusions were obtained: (1) TMJ sounds were classified into three clusters according to the total energy and band width. (2) It is possible to divide the changing of jaw moving velocity into three patterns. (3) It was found that the signal characteristics have relevance to the changing patterns of jaw moving velocity. (4) The acoustical study of TMJ sounds bring on the variable informations to clinical dentistry.

著者

上野 俊明 大山 喬史

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.63, no.2, pp.429, 1996-06-30 (Released:2010-10-08)

参考文献数

4

被引用文献数

1

著者

濱野 英也 魚島 勝美 苗 維平 益田 高行 松村 光明 埴 英郎 北崎 祐之 井上 昌幸

出版者

口腔病学会

雑誌

口腔病学会雑誌 (ISSN:03009149)

巻号頁・発行日

vol.65, no.1, pp.93-99, 1998-03-31 (Released:2010-10-08)

参考文献数

12

被引用文献数

7 11

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Allergies caused by metals have been increasing. The number of patients visiting dentists with the chief complaint of metal allergy has also been increasing. From March 1994 to February 1997, 263 patients who complained of various symptoms visited our allergy clinic. Among them, 184 patients were suspected to have allergy caused by metals in dental restoration materials and were referred to the patch test. Among 165 patients', 128 were positives for metal allergy. Constituent elements of intraoral metals were analyzed in 107 of these 128 positive patients. The findings were as follows:1. The most common five elements acting on the patients were Hg, Co, Ni, Cr, and Pd.2. The most frequently used elements of dental restoration metal materials were Zn, Ag, Cu, Au, and Pd, and the alloy was Au-Ag-Pd alloy.3. The highest tendency of coincidence between allergen and intraoral metals were observed among Co-Cr-Ni alloys and Pd, Ni, and Cr elements.4. In case of palmoplantar pustulosis, allergen metals tended to be the same as intraoral metal elements.