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熱田 充, 田中 卓男, 日景 盛, 内山 洋一
1984 年 28 巻 5 号 p.
767-774
発行日: 1984/10/01
公開日: 2010/08/10
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4-Methacryloxyethyl trimelliate anhydrite (4-META) had been reported to be a suitable monomer which promotes adhesiveness of PMMA rods with tooth substrates and dental gold alloys.
Film thickness, tensile adhesive strength and solubility of a new adhesive resin cement including 4-META were measured after cementing full coverage crown on an abutment tooth, and the values were compared with those of zinc phosphate, polycarboxylate, glass ionomer, epoxylite resin, reinforced zinc oxide eugenol cements.
The results were as follows:
1) The film thickness of the adhesive resin cement on the margin was about 75 μm as cast, but it was reduced to 26 μm by adding vent of internal groove.
2) Force required to dislodge crown cemented by the adhesive resin cement was about 100kg.
3) Force required for separation of the cement resin crown-tooth assemblies was about 26kg after adding thermal cycles of 200 times. Dye penetration was to located to the enamel of the margin.
4) Scanning electron microscopy evaluation of the solubility on margins of crowns showed that the adhesive resin cement was tolerable in 1/100N lactic acid solution for 12 hours, although most of cements was decayed remarkably.
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高木 明夫, 藤山 えり子, 清水 博史, 田中 卓男, 熱田 充
1984 年 28 巻 5 号 p.
775-780
発行日: 1984/10/01
公開日: 2010/08/10
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熱田 充, 田中 卓男
1984 年 28 巻 5 号 p.
781-787
発行日: 1984/10/01
公開日: 2010/08/10
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The new type resin which composed with crosslinked monomer and a prepolymerized composite filler, a so-called organic filler, improved remarkably hardness and abrasion resistance of crown and bridge resins. In addition, an adhesive opaque resin containing 4-META could bind firmly a resin to a metal frame without any mechanical retentive devices. In this study, the fracture strength of resin veneered crowns fabricated with these new materials was compared with that of the bonded porcelain veneer crown by impact and peel test. The results showed the resin veneered crowns was superior to the bonded porcelain veneer crowns about impact and peel resistance.
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第1報統計手法によるIPB相関式の導出
保母 須弥也, 高山 寿夫, 田端 基人
1984 年 28 巻 5 号 p.
788-795
発行日: 1984/10/01
公開日: 2010/08/10
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第2報チェックバイト法におけるI.P.B.相関式の応用
保母 須弥也, 田端 基人, 高山 寿夫
1984 年 28 巻 5 号 p.
796-809
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
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特に単結晶サファイアと他のインプラント材料との比較について
赤川 安正, 橋本 正毅, 近藤 倫明, 松本 仁門, 盛植 泰照, 玉川 博, 佐藤 隆志, 津留 宏道
1984 年 28 巻 5 号 p.
810-815
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
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熱田 充, 黒岩 学
1984 年 28 巻 5 号 p.
816-824
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
New technic for fabrication of resin veneered crown without any mechanical retentive devices onto the metal frame was introduced by using adhesive opaque-resin including 4-META. Prognosis of these veneer crowns was followed during half to two years. The fall percentage of veneered resin in 257 teeth of 106 patients was about 9% in total facing crowns and pontics. The 15% of the upper veneered crown was rather high as compared with that of lower ones, although it was due to the incisal edges or buccal cusps were not covered withmetal frame. The results of prognosis suggests that using together the mechanical retentive devices is essensial clinically, even if this adhesive opaque-resin showed high retentive strength in vitro.
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第1報アンケート調査および材料学的検索
田島 直孝, 相澤 理子, 清水 雅子, 椎原 克寛, 樋口 俊宏, 潤米 宏仁, 久保田 幸生, 細田 透, 山崎 浩, 山本 克之, 森 ...
1984 年 28 巻 5 号 p.
825-835
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
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加藤 均, 佐藤 尚弘, 三浦 宏之, 吉田 恵一, 吉田 隆義, 長谷川 成男
1984 年 28 巻 5 号 p.
836-843
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
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(第1報)高温埋没材および陶材の寸法変化について
山本 秀, 宗像 清貴, 板倉 良暢, 大友 孝恒, 潤田 和好, 野口 八九重
1984 年 28 巻 5 号 p.
844-854
発行日: 1984/10/01
公開日: 2010/08/10
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In order to know the possibillity of direct firing method of porcelain jacket crown without foil on a refractory die, dimensional changes of 12 investments for high fusion alloy and of 1 aluminous porcelain were investigated. The following results could be drawn.
(1) Refractory matrix should not shrink under primary size on first firing and show no dimensional change after cyclic heat.
(2) Porcelain should show satisfactory sintering on early period of cyclic heat and should have equal or a little more thermal expansion than refractory matrix.
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第1報義歯の振動と咬合音ならびに義歯の変位との関連
前田 芳信, 岡田 政俊, 真喜志 彰彦, 西川 悟郎, 青木 孝朗, 尾形 和彦, 奥野 善彦
1984 年 28 巻 5 号 p.
855-859
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
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末瀬 一彦, 岩井 啓三, 角田 淳, 大塚 潔, 坂井田 藤芳, 川添 尭彬
1984 年 28 巻 5 号 p.
860-867
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
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第1報pHによる影響について
重頭 直文, 柳原 敏之, 穴吹 昇三, 石田 浩, 森 博己, 浜田 泰三
1984 年 28 巻 5 号 p.
868-874
発行日: 1984/10/01
公開日: 2010/08/10
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浜田 泰三, 重頭 直文, 穴吹 昇三, 石田 浩, 森 博己
1984 年 28 巻 5 号 p.
875-881
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
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大貫 昌理, 岡島 努, 作間 靖信, 高橋 宏嘉, 森戸 光彦, 細井 紀雄
1984 年 28 巻 5 号 p.
882-894
発行日: 1984/10/01
公開日: 2010/08/10
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第1報正常天然歯列者ならびに各種補綴物装着者における歯牙タッピング時の咬合音波形
岡根 秀明, 松田 一雄, 平岡 由三, 萱野 至仁, 盛植 泰照, 長沢 亨, 津留 宏道
1984 年 28 巻 5 号 p.
895-904
発行日: 1984/10/01
公開日: 2010/08/10
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第2報咬合音波形による咬合障害の検出水準ならびに咬合音診査機器の特性
岡根 秀明, 松田 一雄, 平岡 由三, 長沢 亨, 津留 宏道
1984 年 28 巻 5 号 p.
905-916
発行日: 1984/10/01
公開日: 2010/08/10
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Schüller氏像と対比し
佐藤 博信, 藤井 哲則, 藤井 弘之, 山田 直之
1984 年 28 巻 5 号 p.
917-926
発行日: 1984/10/01
公開日: 2010/08/10
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A comparison study of the information obtained from Schaller's radiogram and sagittal simultaneous multisection tomograms of the temporomandibular joint was made. The subjects were 18-male and 43-female patients with TMJ disorders.
By Schüller's radiogram, 79 condyles (64.8%) with no particular change, 32 condyles (26.2%) with ill-defined change and 11 condyles (9.6%) with abnormal change were found. By sagittal tomograms, however, altered distribution was obtained as follows: 82 condyles (67.2%) with no particular change, 6 condyles (4.9%) with ill-defined change and 34 condyles (27.9%) with abnormal change.
Out of 79 condyles with no particular change by Schtiller's radiogram, morphological changes were detected in 4 condyles (5.1%) by sagittal tomograms. Moreover, out of 32 condyles with ill-defined change by Schaller's radiogram, morphological changes were clearly detected in 21 condyles (65.2%) by sagittal tomograms. The ratio of these diffent radio-diagnosis were about 31%.
In abnormal 34 condyles (43 sites), according to the diagnosis from sagittal tomograms, the highest occurence was erosion (52.9%, 18 condyles), followed by marginal proliferation (23.5%, 8 condyles) and eburnation (20.6%, 7 condyles).
In the result, informations of the TMJ sagittal tomograms were superior to those of the Schaller's radiogram and the tomogram should be available for prosthodontic diagnosis and treatment of the patients.
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第1報放電爆発法による圧印床について
篠原 直幸, 秋田 秀義, 唐仁原 理, 岡村 いそ子, 自見 忠
1984 年 28 巻 5 号 p.
927-930
発行日: 1984/10/01
公開日: 2010/08/10
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The rolled denture bases have possessed many advantages compared with cast bases. However, when these are prepared, the adhesion to acrylic resin will be attended with much difficulty.
So, the authors discussed a technique for increase of adhesive strength of metal plates to acrylic resins.
The technique, discussed in this investigation, were various surface-treatments of the rolled denture bases by the electrohydraulic wire explosion. The rolled denture bases was 18-8 stainless steel, and electrohydraulic wire explosion metal was Ni-Cr alloy (Ni 83, Cr 15, Ag 1, etc. 1). The adhesive strength in this report, which measured using Instron testing machine, was the shear strength'of Plate Resins-(Bio-Resin and Metadent) torolled denture basas.
As a result, the best technique of various surface treatments by electrohydraulic wire explosion, as regards of adhesive strength, was 3-7 μ NiCr alloy particles spray for Bio-Resin, and 7-20 Ni-Cr alloy particles spray for Metadent.
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第2報放電爆発法にて表面処理されたNi-Cr系合金と接着性レジン (Super Bond C & B) との接着勇断強さについて
篠原 直幸, 唐仁原 理, 秋田 秀義, 柿内 貞二, 自見 忠
1984 年 28 巻 5 号 p.
931-935
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
The adhesion bridges and splints have possessed many advantages compared with conventional appliances. However, when they are used for long period in oral cavity, the separation of metal base and resin were created. So, the authors discussed a technique for promoting the adhesive strength to metal base, by applying the adhesive resins.
In this study, the surface treatments by electrohydraulic Ni-Cr wire explosion were employed, as the technique for increase of adhesive strength of the adhesive material (Super Bond C & B) to Ni-Cr alloy base metal. The shear strength was measured, and the possibility to clinical application was discussed.
As the result of this investigation, the best technique of various surface treatments by electrohydraulic Ni-Cr wire explosion, as regards of adhesive strength, was 3-8μ Ni-Cr alloy particles spray.
On the other hand, authors discussed the thickness of sprayed layer by electrohydraulic Ni-Cr wire explosion, in consideration of the 20-100μ capsule thickness of Super Bond C & B, microscopic observation and roughness of Ni-Cr alloy. Because Ni-Cr alloy particles were sprayed the inside surface of metal castings by electrohydraulic wire explosion.
In conclusion, it can be found that the surface treatment sprayed by hydraulic Ni-Cr wire explosion was clinically favourable when 3-8μ Ni-Cr particles sprayed.
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第3報放電爆発法にて表面処理されたNi-Cr系合金と接着性レジン (Panavia) との勇断接着強さについて
篠原 直幸, 秋田 秀義, 唐仁原 理, 嶺崎 良人, 自見 忠
1984 年 28 巻 5 号 p.
936-938
発行日: 1984/10/01
公開日: 2010/08/10
ジャーナル
フリー
In the second report, it was found that the adhesion bridges and splints prepared by a method of electrohydraulic wire explosion could be sufficiently applied in clinical cases. In this report, therefore, the methods for promoting the adhesive strength of the adhesive resin (Panavia) to metal base were discussed. And it was examined whether the components of the two Ni-Cr alloys base metal affected of not the adhesive strength.
The mean adhesive strengths of Panavia under shear to Ni-Cr alloys were relatively small compared with Super Bond C & B. Furthermore, there was difference in the shear strength between the two Ni-Cr alloys.
However, the shear strengths were 110.0-154.3 kg/cm
2From these results, it can be seen that the property of Panavia is clinically favourable since it is considered that Panavia has some surpassing features-the thin capsule of 19μ thickness, the easy manipulation, and the low adsorption. And it can be found that the surface treatment by electrohyraulic Ni-Cr wire explosion is clinically favourable irrespective of the compornents of Ni-Cr alloys.
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