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

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2 Citations (Scopus)

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.

Original languageEnglish
Article numberdmj/2017-022
Pages (from-to)237-243
Number of pages7
Journaldental materials journal
Volume37
Issue number2
DOIs
Publication statusPublished - Jan 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)

Cite this

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title = "The effective design of zirconia coping on titanium base in dental implant superstructure",
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.",
author = "Maiko Mieda and Atsuta Ikiru and Yasuyuki Matsushita and Takehiro Morita and Yasunori Ayukawa and Yoshihiro Tsukiyama and Yoshinori Sawae and Kiyoshi Koyano",
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AU - Mieda, Maiko

AU - Ikiru, Atsuta

AU - Matsushita, Yasuyuki

AU - Morita, Takehiro

AU - Ayukawa, Yasunori

AU - Tsukiyama, Yoshihiro

AU - Sawae, Yoshinori

AU - Koyano, Kiyoshi

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N2 - 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.

AB - 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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