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Displacement of Screw-Retained Single Crowns into New Generation Narrow Diameter Implants with Conical and Conical/Hex Internal Connections and their Performance when Cyclically Loaded

Jacobs, Nicholas R
http://rave.ohiolink.edu/etdc/view?acc_num=osu1566144926275455

Abstract Details

2019, Master of Science, Ohio State University, Dentistry.
Purpose: To measured 3D axial displacement of screw-retained single abutments with conical (AST) and conical/hex (ZIM) internal connections into narrow diameter implants (NDI). Additionally, measured torque values before and after cyclic loading were used to calculate "preload efficiency." Materials and Methods: Six NDIs with conical internal connections and six NDIs with conical/hex internal connections were analyzed by 3-Dimensional Digital Image Correlation (3D DIC) and then subjected to cyclic loading in air, at room temperature, at 2 Hz for 5 million cycles under a load of 200N simulating 5 years of functional loading in accordance to ISO standard 14801:2007. Results: The mean displacement in the U direction for the AST group and ZIM Group were -0.7 µm (±8.7) and -4.7 µm (±11.0), respectively. The mean displacement in the V direction for the AST group and ZIM Group were -37.0 µm (±29.0) and -150.0 µm (±33.0), respectively, with statistical difference between the groups (P<.0001). The mean displacement in the W direction for the AST group and ZIM Group were -0.9 µm (±14.0) and -23.0 µm (±33.0) respectively. Calculation of the preload efficiency yielded 28.1% for the AST group and 41.52% for the ZIM group. Conclusions: Greater Abutment/Loading Cap Complex displacements were observed with the Internal Conical/Hex Connection Implant System (ZIM). The Abutment/Loading Cap Complexes displaced significantly more in the V-axis in both implant systems. The internal conical/hex connection implant maintained preload more efficiently during cyclic loading than the internal conical connection implant.
Burak Yilmaz, D.D.S., Ph.D. (Advisor)
Lisa Knobloch, D.D.S., M.S. (Committee Member)
Jeremy Seidt, Ph.D., M.S. (Committee Member)
53 p.
Dentistry
prosthodontics; implant; abutment; displacement; torque; screw; conical; conical hex; preload; preload efficiency;

Recommended Citations

Citations

  • Jacobs, N. R. (2019). Displacement of Screw-Retained Single Crowns into New Generation Narrow Diameter Implants with Conical and Conical/Hex Internal Connections and their Performance when Cyclically Loaded [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566144926275455

    APA Style (7th edition)

  • Jacobs, Nicholas. Displacement of Screw-Retained Single Crowns into New Generation Narrow Diameter Implants with Conical and Conical/Hex Internal Connections and their Performance when Cyclically Loaded. 2019. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1566144926275455.

    MLA Style (8th edition)

  • Jacobs, Nicholas. "Displacement of Screw-Retained Single Crowns into New Generation Narrow Diameter Implants with Conical and Conical/Hex Internal Connections and their Performance when Cyclically Loaded." Master's thesis, Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1566144926275455

    Chicago Manual of Style (17th edition)

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This open access ETD is published by The Ohio State University and OhioLINK.