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[in Japanese]
1983 Volume 3 Issue 1 Pages
1-4
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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[in Japanese]
1983 Volume 3 Issue 1 Pages
5-7
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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[in Japanese]
1983 Volume 3 Issue 1 Pages
8-12
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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[in Japanese]
1983 Volume 3 Issue 1 Pages
13-14
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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The Effect of Overfilling and Burnishing
Hisashi HISAMITSU, Akira WATANABE, Sadao WAKUMOTO, K.D JORGENSEN
1983 Volume 3 Issue 1 Pages
15-18
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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The present study was conducted to investigate the effect of overfilling and burnishing upon the structure of occlusal margins of lathe cut and spherical alloy amalgam. All the experimental fillings were made in cavities (5 mm in diameter, 3.5 mm in depth and 120° in cavosurface angle) cut in cylinders of plexiglass. The condensation was completed in following three different techniques. 1) The cavities not overfilled, the margins not burnished. 2) The cavities overfilled, the margins not burnished. 3) The cavities overfilled, the margins burnished. The amalgam fillings in the cavities were embedded, sectioned and polished. Microphotographs of the sections of the filling margins were enlarged (328 times) and copied on paper. The porosity was determined on the enlarged prints using the line-sectioning method. In the group of lathe cut alloy amalgam, the differences of the percentage porosity between marginal technique 1 and 2, or 2 and 3 were statistically significant, while in the group of spherical alloy amalgam, there were no significant differences between technique 1 and 2 or 2 and 3. Comparing the two groups, lathe cut and spherical alloy amalgams, technique 1 showed highly significant difference and technique 3 showed probably significant difference but technique 2 showed no significant difference. According to the results of this study, overfilling and burnishing were significantly decreased the porosity of occlusal margins of lathe cut alloy amalgam filling. In the case of spherical alloy amalgam, overfilling and burnishing were not so effective to decrease the porosity.
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Kazuo ITOH, Teruo TOKO, Mikio CHIBA, Sadao WAKUMOTO
1983 Volume 3 Issue 1 Pages
19-26
Published: September 30, 1983
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Koichi OCHI, Tatsuya TONE, Yoshiko KAMOI, Kokichi MATSUMOTO
1983 Volume 3 Issue 1 Pages
27-31
Published: September 30, 1983
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Porcelainfacings and Their Adaptability by Follow Up Study
Yoshimasa IGARASHI, Tomoharu MOGI, Makoto KAWAE, Hideki OKUYAMA, Yoshi ...
1983 Volume 3 Issue 1 Pages
32-38
Published: September 30, 1983
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Yoshihiko YOKOTA, Hiroshi SUGIYAMA, Tomio SHIN, Koji OGUCHI, Kaoru EGA ...
1983 Volume 3 Issue 1 Pages
39-44
Published: September 30, 1983
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Tetsuo KODAKA, Kazuhiro DEBARI, Mie KUROIWA
1983 Volume 3 Issue 1 Pages
45-47
Published: September 30, 1983
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Tohru YAMAZAKI
1983 Volume 3 Issue 1 Pages
48-67
Published: September 30, 1983
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Yumiko ETO, Fumiko MIZUNO, Ayako YAMAMOTO, Mitsuyoshi TAKAHASHI, Kensh ...
1983 Volume 3 Issue 1 Pages
68-72
Published: September 30, 1983
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Kenji WARITA, Shun-ichi MIURA, Masanori HAMAOKA, Tadaharu KAWAWA
1983 Volume 3 Issue 1 Pages
73-78
Published: September 30, 1983
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Masakazu KAWAI, Masahide KOYAMA, Shigeru KUROIWA
1983 Volume 3 Issue 1 Pages
79-84
Published: September 30, 1983
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Masahide KOYAMA, Shigeru KUROIWA, Masakazu KAWAI, Tetsuhiko TACHIKAWA
1983 Volume 3 Issue 1 Pages
85-91
Published: September 30, 1983
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Takaaki TAKATORI, Shinobu SHIBUYA, Tetsuya NAKAHIRO, Toshiro TAKEUCHI, ...
1983 Volume 3 Issue 1 Pages
92-97
Published: September 30, 1983
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1983 Volume 3 Issue 1 Pages
133-144
Published: September 30, 1983
Released on J-STAGE: August 27, 2012
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