The effective design of zirconia coping on titanium base in dental implant superstructure

研究成果: ジャーナルへの寄稿記事

1 引用 (Scopus)

抄録

Zirconia exhibits good tissue compatibility and nontoxicity, making it a widely used esthetic replacement material for implant abutments. To avoid abutment-fracture, the parts composed of zirconia with a bonded metal component connected to the implant can be used. The purpose of this study was to design titanium and zirconia components with high fracture resistance at the zirconia component’s edge line. Three edge line designs of the titanium base and zirconia sleeve were made: chamfer, shoulder, and back-taper. To assess the strength of the abutment design, static loads were applied vertically and 30 degrees from the vertical axis. A test of tensile strength was also performed after chewing simulation. Conventional zirconia components mounted on a chamfer-type titanium base showed significantly lower fracture resistance than shoulder and back-taper types. This study suggests that to improve the durability of zirconia abutments with a titanium base, a back-tapered edge design is recommended.

元の言語英語
記事番号dmj/2017-022
ページ(範囲)237-243
ページ数7
ジャーナルdental materials journal
37
発行部数2
DOI
出版物ステータス出版済み - 1 1 2018

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Dental prostheses
Dental Implants
Titanium
Zirconia
Fracture toughness
Shoulder Fractures
Mastication
Histocompatibility
Tensile Strength
zirconium oxide
Esthetics
Durability
Tensile strength
Metals
Tissue

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Dentistry(all)

これを引用

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abstract = "Zirconia exhibits good tissue compatibility and nontoxicity, making it a widely used esthetic replacement material for implant abutments. To avoid abutment-fracture, the parts composed of zirconia with a bonded metal component connected to the implant can be used. The purpose of this study was to design titanium and zirconia components with high fracture resistance at the zirconia component’s edge line. Three edge line designs of the titanium base and zirconia sleeve were made: chamfer, shoulder, and back-taper. To assess the strength of the abutment design, static loads were applied vertically and 30 degrees from the vertical axis. A test of tensile strength was also performed after chewing simulation. Conventional zirconia components mounted on a chamfer-type titanium base showed significantly lower fracture resistance than shoulder and back-taper types. This study suggests that to improve the durability of zirconia abutments with a titanium base, a back-tapered edge design is recommended.",
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AU - Tsukiyama, Yoshihiro

AU - Sawae, Yoshinori

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