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Teuku SYAFIUDDIN, Tomoyuki OSAKABE, Hiroshi SHIMOMURA, Teruo TOKO, His ...
1991 Volume 11 Issue 2 Pages
127-132
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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Three polishing techniques for composite restoration were compared for the resultant surface roughness, reduction rate and discoloration using a light-cured microfilled composite and a self-cured hybrid filled composite. Both the resultant roughness and reduction rate were smallest with Silicone Point White, and followed with Silicone Point Green and Silicone Point Brown fn order glossy surface of composite polymerized under a matrix considerably discolored regardless of the extreme smoothness. Discoloration decreased when the surface was reduced by polis17ng and it was smallest with Silicone Point White and followed with Silicone Point Green and Silicone Point Brown in order. Although the resultant roughness comparable, between the two types of composite, the reduction rate and discoloration were significantly greater with the light-cured microfilled composite than the self-cured hybrid filled composite.
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Polymerization Shrinkage and Tensile Strength of the Polyfunctional Based Monomer
Sam'an Malik MASUDI, Teuku SYAFIUDDIN, Tomoyuki OSAKABE, Hiroshi SHIMO ...
1991 Volume 11 Issue 2 Pages
133-137
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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This study was conducted to observe the polymerization shrinkage and tensile strength of the polyfunctional based composites containing various types of diluent monomer systems at several concentrations. Fifteen matrix-monomers systems were prepared and four experimental polyfunctional composites were made by filling a hybrid filler with a constant weight of 86.5 %. The rate of polymerization shrinkage was calculated by the specific gravity of the monomer and the polymer by using a picnometer and Hubbard type hydrometer. Tensile strength was measured by using an Instron Universal Testing Machine. The results of this study indicated that polymerization shrinkage of unfilled polyfunctional resin ranged from a volume percentage of 3.88 to 8.56 and the tensile strength of the unfilled polyfunctional resin showed more significant results than Bis-GMA unfilled resin. The volume percentage of polymerization shrinkage of the filled resin ranged from 1.23 to 1.89; the best and most significant value was obtained from the polyfunctional monomer diluted with Bis-MPEPP 2.6E. Tensile strength of the filled polyfunctional experimental resin ranged from 71.58 to 80.92 MPa, which indicates that M-4 resin showed significantly higher tensile strength compared to the M-6 resin formulation.
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Junichi KOMATSU, Yasunori SHIBATA
1991 Volume 11 Issue 2 Pages
138-146
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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Effect of Several Surface Finishing Procedures on Surface Texture and Mechanical Properties of Dental Porcelains
Makoto SAITO
1991 Volume 11 Issue 2 Pages
147-166
Published: June 30, 1991
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Part I : Detecting Methods
Tsukasa SANO
1991 Volume 11 Issue 2 Pages
167-176
Published: June 30, 1991
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Takahisa SASAKI, Toshihiko YAGISHITA
1991 Volume 11 Issue 2 Pages
177-187
Published: June 30, 1991
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Nobuhito OKUSA
1991 Volume 11 Issue 2 Pages
188-200
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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The Significance of the SK-013 to the Topical Chemotherapy and the Representative Tooth for Reevaluating the Initial Therapy
Chisato SAKURAI, Tokiko TAKANO, Chikako KURIHARA, Junko MITSUZAKI, Toh ...
1991 Volume 11 Issue 2 Pages
201-207
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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Keiko YOSHIDA, Hiroaki ITOH, Hirohisa MINOBE, Jiro OHNO, Ryuta HAMADA, ...
1991 Volume 11 Issue 2 Pages
208-219
Published: June 30, 1991
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Naomichi MACHIDA
1991 Volume 11 Issue 2 Pages
220-230
Published: June 30, 1991
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Effects of Cyclic Mechanical Stress on Rat Calvarial Cell Proliferation
Hitomi SHIMIZU
1991 Volume 11 Issue 2 Pages
231-241
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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Arch Form and Occlusal Aberration
Nobuyuki SHINJO, Yoshiyuki TAKIZAWA, Yoshinobu SHIBASAKI, Tatsuo FUKUH ...
1991 Volume 11 Issue 2 Pages
242-254
Published: June 30, 1991
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Jun SAKAMOTO
1991 Volume 11 Issue 2 Pages
255-264
Published: June 30, 1991
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Shuji IKUMI, Masatoshi KUNO, Hiroyoshi YAMAZAKI, Kohki CHIN, Kinuko GO ...
1991 Volume 11 Issue 2 Pages
265-267
Published: June 30, 1991
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Michitaka KITAZAWA, Yoichi KURACHI, Masato MANABE, Masao NAGUMO, Satos ...
1991 Volume 11 Issue 2 Pages
268-272
Published: June 30, 1991
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[in Japanese], [in Japanese]
1991 Volume 11 Issue 2 Pages
273-275
Published: June 30, 1991
Released on J-STAGE: August 27, 2012
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