Adhesive Dentistry
Online ISSN : 2185-9566
Print ISSN : 0913-1655
ISSN-L : 0913-1655
Volume 12, Issue 1
Displaying 1-7 of 7 articles from this issue
  • Tadao Fukushima, Yusuke Inoue
    1994 Volume 12 Issue 1 Pages 1-9
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    It is presently known that a resin reinforced dentin layer, which was first reported with 4-META bonding system by Nakabayashi, can be formed in pretreated dentin. We first confirmed the presence of and measure the thickness of the layer by means of the combination of the brominated methacrylate and EPMA in order to investigate the influence of the layer on bonding to dentin. Also, we investigated the effect of bonding agent types and dentin primer on the bond strength to pretreated dentin, and the effect of dentin pretreating agents on the decrease in bond strength in water using commercial and experimental bonding systems which can develop the layer. The presence of the layer was confirmed from the Ca and Br X ray line profile, and the thickness determined with EPMA was equivalent to that observed with SEM. The bond strength of Clearfil photo bond and All bond to dentin treated with K-etchant and All bond Dentin conditioner was higher than that of experimental photo-cured bonding agent containing 2 MEM. However, for Scotchprep, the bond strength of the experimental bonding agent was higher than that of Scotchbond 2. The dentin primer containing MEMA enhanced the bond strength of Clearfil photo bond to dentin treated with 10-3 solution. The bond strength of the experimental bonding agent to dentin treated 37% phosphoric acid solution significantly decreased with time spent immersed in water for one year. For 10-3 solution, the bond strength did not change with time.
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  • Toshio Takatsu
    1994 Volume 12 Issue 1 Pages 10-16
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    The author developed approximately 10 years ago a simple and useful method called “a wire-binding repositioning technique” to salvage a molar suffering from a complete vertical fracture.
    Since then, many severely fractured molars have been rehabilitated by this technique providing the following benefits.
    1) Preventing immediately the fracture propagation, 2) Improving the pathological and functional status of damaged Periodontal tissues, 3) Facilitating successful endodontic treatment and the restoration procedure. This article reports the long term clinical results and prognosis of the rehabilitated molars, also introducing the technical refinements in the treatment.
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  • Sueo Saito
    1994 Volume 12 Issue 1 Pages 17-22
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    The adhesive strength and physical properties of composite resin are strong enough to bridge defective front teeth. This technique does not grind the tooth substance and can make a bridge immediately. This process also functions as a splint for unstable teeth and results in strengthening of the periodontal tissue. After 10 years of practise and 30 clinical cases I strongly endorse this technique.
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  • Toru Nikaido, Tsunehiko Takada, Michael F. Burrow, Masaaki Satoh, Shig ...
    1994 Volume 12 Issue 1 Pages 23-28
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    The aims of this paper were to introduce an outline of the clinical technique of Bistite Resin Cement (Tokuso) and to evaluate its early bond strengths to tooth substrates with or without its combined primer. Ground bovine teeth were pretreated and primed according to the manufacturer's instructions, and then the luting resin cement was applied and photocured to make the test specimens. Tensile bond strengths were measured after 1min, Omin, and 24hours immersed in 37°C water. The early bond strengths of Bistite Resin Cement to both enamel and dentin were statistically improved after using the primer. Therefore, if a resin cement contains a bonding system such as an etchant, primer etc, the bonding ability of the resin cement should be estimated not only from the resin cement itself, but from the bonding system totally.
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  • Film thickness of luting cement and marginal leakage at gingival margin located on root surface
    Kazuyuki Ishikawa, Masayoshi Fukushima, Masaaki Iwaku
    1994 Volume 12 Issue 1 Pages 29-40
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    This study evaluated the correlation between the film thickness of luting cement and the marginal leakage of indirect composite and porcelain laminate veneers, whose gingival margins were located on the root surface. For microleakage evaluation, a dye percolation test was used under mechanical load cycle from an axial direction. Dye penetration was measured at incisal enamel margin and gingival dentin margin. The results were obtained as follows; 1) Marginal leakage was little observed at enamel margins. On the other hand, all of four dentin bonding systems used in this study showed marginal leakage at dentin margins. However, Clearfil Liner Bond, Super-Bond D Liner and experimental Panavia groups showed significantly less leakage than Clearfil Photo Bond group. 2) Marginal film thickness of luting cement was about 50μm at incisal margin, while 100μm at gingival margin in both indirect composite and porcelain laminate veneers. 3) Marginal film thickness ranged 17μm to 449μm with considerable variance between enamel and dentin margins and among the materials. However, there was no correlation between the film thickness of luting cement and the score of marginal leakage.
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  • Masaaki Satoh, Hiroshi Gotoh, Norimichi Inai, Toru Nikaidou, Junji Tag ...
    1994 Volume 12 Issue 1 Pages 41-48
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    Inlay Restoration has an inherent drawback in pulp protection during temporary restoration. Leaky sealing might result in bacterial contamination of the cavity, possibly leading to pulp damage. Liner Bond System is unique in producing tight sealing film on the dentin surface with an adhesive resin and a low viscosity composite, Protect Liner. It enables us to cover prepared surface immediately after preparation to minimize further pulp irritation from mechanical, thermal, and bacterial insults during impression taking, temporary restoration, and final cementation. This paper describes how to use Liner Bond System as a dentin-pulp protector in indirect restorations, in order to minimize pulp irritation and pain during treatment and to maximize marginal seal and adhesion between tooth and restoration.
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  • Part 1. Effectiveness of “Super Bond Station” in Practical Use
    Akira Manabe, Tatsutomi Watanabe, Ken'ichi Kobayashi, Masanori Nagao
    1994 Volume 12 Issue 1 Pages 49-54
    Published: February 28, 1994
    Released on J-STAGE: June 07, 2011
    JOURNAL FREE ACCESS
    Cooling the dappen dish to prolong the working-time for 4META/MMA-TBB Resin (Super Bond C&B®) is commonly used. However, the problem in condensation in the moisture of the air usually occurs in this method. We tried to solve the problem by aiding of commercially available cooling pack. It is confirmed that the trial product (Super Bond Station) solved this problem. The condensation in the moisture of the air did not appear to some extent in practical use when the temperature of the dappen dish is at 12-13 degrees with the environmental temperature at 28 degrees with 70 percentage of humidity. In such low temperature, the working-time of mixing is more prolonged 90-100 seconds by using the trial product. Therefore, we are capable to gain enough working-time to operate the adhesive agent in the condition of high temperature and humidity in summer by usiug the trial product.
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