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Performance of titanium alloy sintered porous‐surfaced (SPS) implants supporting mandibular overdentures during a 20‐year prospective study
Author(s) -
Deporter Douglas,
Pharoah Michael,
Yeh Simon,
Todescan Reynaldo,
Atenafu Eshetu G.
Publication year - 2014
Publication title -
clinical oral implants research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.407
H-Index - 161
eISSN - 1600-0501
pISSN - 0905-7161
DOI - 10.1111/clr.12043
Subject(s) - materials science , alloy , dentistry , titanium , porosity , titanium alloy , metallurgy , medicine , composite material
Objective This study was undertaken to assess short, sintered porous‐surfaced ( SPS ), press‐fit implants with mandibular overdentures to restore edentulous patients with severe mandibular resorption. Materials and Methods Implant lengths of 7, 8, 9, and 10 mm were used, all with 2‐mm polished collars, making the designed intrabony lengths 5, 6, 7, and 8 mm. Each patient received three non‐splinted implants placed using a two‐stage protocol. Results Only 22 (with 53 implants) of the original 52 patients were available after 20 years. All but one of these patients was functioning with their implant‐retained overdentures. Life table analysis accounted for all patients and implants, and showed a 20‐year survival of 73.4%. Analysis of carefully standardized radiographs revealed mean cumulative bone loss after 20 years of 0.67 mm relative to the polished collar‐ SPS junction. Conclusions Short SPS implants with mandibular overdentures can provide an acceptable treatment over a 20‐year period for fully edentulous patients with severe alveolar resorption.