title: Retentive force of O-ring attachment to use Immediate Provisional Implant (IPI)-retained overdenture.
abstract: This study evaluated the retentive force of the O-ring attachment to an Immediate Provisional Implant (IPI)-retained overdenture. Two sizes of O-rings (#1, #2) were placed on the IPI abutment head. As the controls, soft relining material, silicone lining material, and the PMMA resin were used to connect the IPI abutment head. The retentive forces (n=5, N) obtained at a crosshead speed of 40 mm/min were analyzed by ANOVA/Tukey's HSD test (alpha=0.05). O-ring #1 showed the significantly greatest force among all materials tested (p0.05). Appropriate retention was obtained using the smaller O-ring#1 for the IPI-retained overdenture.
authors.affiliation: Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine, Kanagawa, Japan. kobayashi-mariko@tsurumi-u.ac.jp
authors.forename: Mariko
authors.initials: M
authors.lastname: Kobayashi
authors.forename: Chikahiro
authors.initials: C
authors.lastname: Ohkubo
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Suzuki
authors.forename: Takayuki
authors.initials: T
authors.lastname: Aoki
authors.forename: Jun-ichi
authors.initials: J
authors.lastname: Sato
authors.forename: Toshio
authors.initials: T
authors.lastname: Hosoi
mesh_terms: D000704:Analysis of Variance; D017267:Dental Prosthesis Design / Q000379:methods*; D017268:Dental Prosthesis Retention / Q000295:instrumentation* / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported / Q000379:methods*; D003794:Dental Restoration, Temporary; D003828:Denture, Overlay; D013718:Tensile Strength