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Performance of Double Acid‐Etched Surface External Hex Titanium Implants in Relation to One‐ and Two‐Stage Surgical Procedures
Author(s) -
Ibañez Juan C.,
Tahhan Marcelo J.,
Zamar Juan A.
Publication year - 2003
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2003.74.11.1575
Subject(s) - stage (stratigraphy) , medicine , implant , surgery , titanium , dentistry , single stage , materials science , paleontology , engineering , metallurgy , biology , aerospace engineering
Background: The use of external hex titanium implants is widely accepted; however, in the past few years, they have been placed by using not only the traditional two‐stage surgical protocol, but also the one‐stage surgical protocol. The aim of the present study was to compare the success rates that can be obtained from two‐stage surgeries (conventional protocol) and one‐stage surgeries when double acid‐etched surface external hex titanium implants are used. Methods: A total of 654 double acid‐etched surface external hex titanium implants were studied in 195 patients (109 females and 86 males) aged 18 to 79 (mean 49.20). These patients were followed‐up both clinically and radiographically for 3 years. Among these implants, 338 were inserted by means of two‐stage surgery and 316 were placed following the one‐stage surgery protocol. Results: The success rate of the whole sample of double acid‐etched surface implants was 99.23%. The results showed a 99.05% success rate for one‐stage surgeries and 99.40% rate for two‐stage surgeries. Only three of the implants inserted by performing one‐stage surgery and two of the implants placed using two‐stage surgery failed before they were loaded. No implants were lost after the loading was completed. The bone level at 12 months was 0.58 mm for one‐stage‐placed implants and 0.54 mm for two‐stage‐placed implants. At 24 months the bone level was 0.77 mm and 0.68, respectively, and at 36 months 0.89 and 0.83. Conclusion: The similar and high success rates obtained in one‐ and two‐stage surgeries using double acid‐etched surface external hex titanium implants demonstrate that it is possible to choose the most convenient surgical procedure for each particular case without increasing the risk of failure. J Periodontol 2003;74:1575‐1581 .